Multi-material print reservoir and platform system for additive manufacturing fixtures

Abstract

A three-dimensional printing system (3D printing system) for retrofitting a 3D printer to print multiple 3D-printed objects, comprising: a platform that can be removed from the 3D printer and includes a variety of build surfaces; and a removable adapter from the 3D printer, configured to attach a variety of independent reservoirs to the 3D printer, each of the variety of independent reservoirs being designed to hold one or more printing materials, to be aligned with a curing light machine of the 3D printer and to snap into a corresponding build surface of the variety of build surfaces of the platform.

Description

TECHNICAL AREA

[0001] The present invention relates generally to additive manufacturing devices. More specifically, the present invention relates to devices, systems, and methods for producing three-dimensional (3D) objects using additive manufacturing techniques that employ a disposable cartridge which can be discarded or recycled. STATE OF THE ART

[0002] 3D printing is a process in which three-dimensional objects are created by depositing materials, usually in layers. Additive manufacturing uses 3D modeling software to create designs or scan objects. The software then converts the design into a layer-by-layer scaffold for additive manufacturing. 3D printing encompasses several manufacturing technologies. Each technology differs in terms of material selection, surface finish, durability, as well as production speed and cost. One of these is Digital Light Processing (DLP).

[0003] Digital Light Propagation (DLP) is a 3D printing process that uses a digital light projector as a light source to cure photoreactive polymers. DLP technology utilizes light and a liquid resin to create solid parts and products. The light source shining onto the surface of the object being printed is controlled by micromirrors within the system. Generally, DLP printers are built around a resin tank with a transparent bottom and a build platform on top to create objects layer by layer. This is similar to stereolithography (SLA), but differs in its use of different light sources.

[0004] An additive manufacturing process using stereolithography has four essential components. It utilizes a photopolymer contained in a vat, which is exposed to a light source. The light from the light source triggers polymerization, converting the liquid on a build platform into a solid to which the solid part adheres. Current systems use a generalized vat that holds a large amount of photopolymer and utilize large platforms to provide a high degree of printing versatility. This has the disadvantage of requiring more resin for the printing process, and in the event of a print failure, there is a risk of wasting even more resin. Furthermore, resin pouring is at the user's discretion, who can pour in either too much or too little resin, which can lead to a print failure.

[0005] Various additive manufacturing processes and technologies are known in the prior art; however, none of them offer a solution for an additive manufacturing device with multiple tanks on the same printer (i.e., a DLP printer) with a single Z-axis controller for simultaneously printing multiple materials. Furthermore, no disposable or reusable cartridge for building specific components with minimal resin handling is disclosed.

[0006] Therefore, there is a need for a 3D printing device for simultaneously printing multiple materials. Furthermore, there is a need for a device with a disposable or single-use cartridge that minimizes waste and eliminates the need for certain equipment. Additionally, there is a need for a cartridge, container, or tank arrangement that minimizes material consumption when printing small batches. The present invention was developed to meet these needs. BRIEF SUMMARY OF THE INVENTION

[0007] The present invention generally discloses an additive manufacturing device which uses a disposable cartridge or reservoir arrangement designed to minimize mold material consumption when printing small batches.

[0008] In exemplary embodiments, the cartridge, which can be disposable or reusable, includes a built-in reservoir for the molding material and a build plate used by an additive manufacturing device to produce a single 3D object.

[0009] According to certain aspects of the invention, a 3D printing system for retrofitting a 3D printer to print multiple 3D-printed objects is provided. The system includes a platform designed for use with the 3D printer, which features a variety of build surfaces; several reservoirs designed to snap into the build surfaces of the platform, each reservoir holding a unique printing material; and an adapter configured to attach the reservoirs to a base of the 3D printer in such a way that each reservoir is aligned with a curing light machine of the 3D printer and each reservoir snaps into a corresponding build surface of the platform. This system enables simultaneous printing with multiple photopolymer materials, thereby significantly reducing the overall printing time and improving printing efficiency.

[0010] According to certain aspects of the present invention, the additive manufacturing device can be described as a 3D printer. The 3D printer may include a container- or cartridge-based resin tank that can be pre-filled and sealed with a molding material such as a light-curing resin. In some exemplary embodiments, the cartridge-based resin tank with light-cured resin is an innovative and intelligent solution designed to allow operators to complete the printing process with minimal resin handling and to eliminate the need to measure the amount of resin during setup. In some exemplary embodiments, the resin is in the form of a liquid or paste. The resin is cured using visible and / or ultraviolet (UV) light. In some exemplary embodiments, the cartridge-based resin tank includes a penetrable or sealing layer on its top surface.The penetrable layer is configured to seal the resin. In some exemplary embodiments, the cartridge-based resin tank further includes an optically clear layer on another side. The optically clear layer is configured to allow the passage of UV light to initiate polymerization.

[0011] In some exemplary embodiments, the cartridge-based resin tank includes a small build platform area, a build platform, or a build plate. In some exemplary embodiments, the build platform is a surface to which the printed part adheres during the printing process. In some exemplary embodiments, the build platform is configured to support the printed part during the printing process. In some exemplary embodiments, the build platform allows for application-specific reservoirs to minimize resin consumption for small print runs. In some exemplary embodiments, the reservoir and build platform can be contained in a cartridge-like unit that is consumed to build specific components, such as a dental device.Once assembled, the cartridge-based resin tank and build platform or cartridge are used up and discarded; that is, they are disposable items or are recycled.

[0012] In some exemplary embodiments, the cartridge-based resin tank further comprises a printing screen or printing surface. In some exemplary embodiments, the printing screen is the surface that allows light to pass through to cure the resin. The printing screen is bonded to the cured resin. The bond between the printing screen and the resin is weak enough that the part can be separated from the printing screen to print the next layer. In some exemplary embodiments, printing takes place within the cartridge-based resin tank, which is pre-filled with resin. In some exemplary embodiments, the build platform and the printing screen are integrated into the sealed, pre-filled cartridge-based resin tank containing light-cured resin.

[0013] In some exemplary embodiments, the build platform can be located inside or outside the cartridge-based resin tank. In some exemplary embodiments, the build platform is integrated into the cartridge-based resin tank. In this arrangement, the cartridge-based resin tank houses both the resin and the build platform. In some exemplary embodiments, a Z-axis arm of the 3D printer houses a connection assembly. The connection assembly is configured to fit the build platform inside the cartridge-based resin tank and break the resin seal within the cartridge-based resin tank. Once printing is complete, the printed part is removed from the build tray, and the build platform can be disposed of. With this type of build platform configuration, the platform arm and external printer features have very little contact with resin and do not require user cleaning.

[0014] In another embodiment, the build platform is located outside the cartridge-based resin tank. In some exemplary embodiments, the build platform can be arranged on the Z-axis arm of the 3D printer. In this arrangement, the build platform is located on the Z-axis arm. In some exemplary embodiments, the build platform has a design that allows it to pierce the seal on the top of the cartridge-based resin tank and access the resin to initiate the printing process.

[0015] In some exemplary embodiments, the build platform interacts with the penetrable layer or sealing surface in various ways to access the resin. The interaction methods may include a puncture interaction method and an interaction method with the integrated platform. In the puncture interaction method, the sealing surface of the cartridge-based resin tank is punctured by the build platform. In some exemplary embodiments, the puncture is designed to prevent contamination of the resin by the seal.

[0016] In the method of interaction with the integrated platform, the build platform is located within the cartridge-based resin tank. In some exemplary embodiments, a mechanism connected to the Z-axis arm interacts with the build platform and couples it to initiate the printing process. In some exemplary embodiments, the build platform pierces the penetrable layer before the printing process is initiated. In another embodiment, the penetrable layer moves and flexes according to the printing cycle. In some exemplary embodiments, the penetrable layer is made of a flexible material.

[0017] In some exemplary embodiments, the cartridge-based resin tank is used with one or more adapters to accommodate the resin tray. The adapter can interact with the cartridge-based resin tank via either a mechanical or a magnetic connection. In some exemplary embodiments, the adapter can be a fixed part or a removable part.

[0018] In another embodiment, a single DLP printer is used to print with multiple materials simultaneously. The single DLP printer includes a platform that can be divided but does not have independent Z-axis controls. In some exemplary embodiments, the single DLP printer includes a reservoir. In some exemplary embodiments, the reservoir can be a disposable tank that holds the printing resin during the printing process. In some exemplary embodiments, the reservoir is pre-filled with light-curing resin for the printing process. In some exemplary embodiments, the reservoir includes one or more compartments configured to hold the printing resin during the printing process. The reservoir physically separates the resin into separate compartments. This can be achieved with a divider on a single part or by using multiple reservoirs.

[0019] In some exemplary embodiments, the container further comprises a build platform or build plate. In some exemplary embodiments, the build platform is the surface to which the printed part adheres during the printing process. In some exemplary embodiments, the container and the build platform can be contained in a cartridge-like unit that is consumed to build specific components, for example, a dental device. In some exemplary embodiments, the container further comprises a printing screen. In some exemplary embodiments, the printing screen is the surface that allows light to pass through to cure the resin. The printing screen is bonded to the cured resin. The bond is weak enough that the part can be detached from the screen to print the next layer.In some exemplary embodiments, the build platform further includes at least one integrated heating device to achieve a faster heating time.

[0020] The foregoing summary contains simplifications, generalizations, and omissions of details and is not intended as a comprehensive description of the claimed subject matter, but rather to provide a brief overview of some of its associated functionalities. Other systems, methods, functionalities, features, and advantages of the claimed subject matter will be or become apparent to those skilled in the art upon consideration of the following figures and the detailed written description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The description of the illustrative embodiments can be read in conjunction with the accompanying figures. It is understood that, for the sake of simplicity and clarity, the elements depicted in the figures are not necessarily drawn to scale. For example, the dimensions of some elements are exaggerated in relation to others. Embodiments incorporating teachings of the present disclosure are shown and described with reference to the figures herein, wherein: Fig. 1 A block diagram for a system according to some exemplary embodiments of the present invention is illustrated. Fig. Figure 1A illustrates a sectional view of a cartridge according to some exemplary embodiments of the present invention. Fig.Figure 1B illustrates the operation of a cartridge according to some exemplary embodiments of the present invention. Fig. 2 illustrates a system according to some exemplary embodiments of the present invention. Fig. 3 - Fig. 5 Illustrate an adapter and adapter components for using a cartridge according to the present invention with conventional 3D printers. Fig. Figure 6 illustrates an exploded view of a cartridge according to some exemplary embodiments of the present invention, in which several Fig. Figure 7 illustrates a perspective view of a resin tank according to some exemplary embodiments of the present invention. Fig. 8 - Fig. Nine different perspective views of a build platform of the 3D printer in some exemplary embodiments of the present invention are illustrated. Fig. Figure 10 illustrates an exploded view of a cartridge according to some exemplary embodiments of the present invention. Fig. 11 a perspective view of a cartridge according to the in Fig. 10 illustrated embodiments. Fig. 12 - Fig. 17 different perspective views of adapters according to some exemplary embodiments of the present invention are illustrated. Fig. Figure 18 illustrates a block diagram of a device or kit according to some exemplary embodiments of the present invention. Fig. Figure 18-1 illustrates a block diagram of a system according to some exemplary embodiments of the present invention. Fig. 18-2 illustrates a flowchart of a process according to some exemplary embodiments of the present invention. Fig.Figure 19 illustrates an exploded view of a 3D printed kit according to the present invention. Fig. Figure 20 illustrates a perspective view of a platform of a 3D printed kit according to the present invention from the rear below. Fig. Figure 21 illustrates an isometric side view of a platform of a 3D printing kit according to the present invention and further illustrates a detailed view of the interior of the multiple build platforms. Fig. Figure 22 illustrates an isometric side view of the plurality of tanks of a 3D printed kit according to the present invention. Fig. Figure 23 illustrates an exploded view of one of the multiple resin tanks of the 3D printed kit according to the present invention. Fig. Figure 24 illustrates a rear view of a resin tank of a 3D printed kit according to the present invention. Fig.Figure 25 illustrates a top view of the multiple resin tanks of a 3D printing kit in a stacked state. Fig. 26 a cross-sectional view at point AA in Fig. 24 illustrated. Fig. Figure 27 illustrates a cross-sectional view of the multiple resin tanks of a 3D printed kit in a stacked state. Fig. 27-1 Reservoirs coupled with an adapter according to the present invention are illustrated. Fig. Figure 28 illustrates an isometric side view of the adapter of a 3D printed kit according to the present invention. Fig. Figure 29 illustrates a top view of an adapter of a 3D printed kit according to the present invention. Fig. Figure 30 shows a cross-sectional view at AA in Fig. 28. Fig. 31A - Fig.Figure 31B illustrates a perspective view of an adapter of a 3D printed kit according to the present invention from the rear bottom. Fig. 32 a cross-sectional view at point BB in Fig. 28 illustrated. Fig. Figure 33 illustrates an exemplary flowchart for reading the RFID of an adapter of a 3D printing kit according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0022] A description of embodiments of the present invention is now given with reference to the figures. It is expected that the present invention can be carried out in other specific forms without departing from its spirit or essential features. The described embodiments are to be regarded in every respect as illustrative only and not as limiting. In general, the invention relates to a device and a system for

[0023] Firstly, regarding Fig. Figure 1 illustrates a block diagram for a system according to some exemplary embodiments of the present invention. More precisely, it shows Fig.1 the system 100, which includes a reservoir arrangement 101 containing a molding material such as a light-curing resin, a platform 102 which in some exemplary embodiments, as discussed below, may be a component of the reservoir arrangement 101 or a component separate from the reservoir arrangement 101, a tank or reservoir 103 containing the molding material and generally formed integrally with the reservoir arrangement 101, an actuator 104 for moving the platform 102 along a z-axis with respect to the reservoir 103, a light module 105 for curing a layer of the molding material on a surface of the platform or on a previously cured layer of the molding material until a three-dimensional (3D) object is formed; and a controller 106 configured to actuate the platform and emit curable light into the reservoir to form the 3D object.Furthermore, in some exemplary embodiments, as discussed below, one or more adapters 107 can be used to adapt an existing additive manufacturing device such as a 3D printer for use with a reservoir arrangement according to the present invention.

[0024] The reservoir assembly 101 is designed to hold a molding material such as a light-curing resin. In some exemplary embodiments, the reservoir assembly 101 is a limited-use cartridge pre-filled with sufficient molding material or resin to create a single 3D object, such as a single crown, a single dental appliance, or a single 3D-printable object in the dental field. In some exemplary embodiments, the cartridge has limited use because, after the 3D-printed object has been produced, the cartridge can be disposed of (i.e., used once) or recycled.In embodiments of the present invention, in which the reservoir arrangement 101 comprises a cartridge, the reservoir arrangement 101 may comprise a platform component forming a platform 102 on which the intended 3D object is formed or cured during the forming process, and a reservoir component forming a reservoir 103 for securing and keeping fresh the forming material or resin to be used for forming the 3D object. For example, and without limiting the scope of protection of the present invention, see . Fig. 1A, Fig. 6, Fig. 10 and Fig. 11, showing various embodiments of a limited-use cartridge according to the present invention, comprising both a platform and a reservoir within the cartridge or reservoir arrangement.

[0025] In other exemplary embodiments according to the present invention, for example as in Fig.7, Fig. 8 and Fig. As shown in Figure 9, a reservoir arrangement 101 can exclude the platform 102. In embodiments where the reservoir arrangement 101 excludes the platform 102, the system 100 nevertheless utilizes the platform 102, except that the platform 102 is a separate component—not formed integrally with the reservoir arrangement 101—which is actuated similarly by the actuator 104, configured to move the platform 102 along a z-axis with respect to reservoir 103. In such exemplary embodiments, the reservoir 103 is formed integrally with the reservoir arrangement 101, such that a portion of the reservoir arrangement 101 forms the reservoir 103, which contains or accommodates the molding material or resin for forming the intended 3D object.

[0026] The platform 102, whether formed integrally with the reservoir assembly 101 or separate from it, includes a build surface designed to receive a layer of the molding material, which is typically cured onto the build surface to support the 3D object built on the platform 102. Therefore, the platform 102 should be made of a suitable material compatible with printing or molding materials as known in the prior art of additive manufacturing.

[0027] The reservoir 103 is generally formed integrally with or as part of the reservoir assembly 101 and typically includes a transparent surface that both holds the molding material within the reservoir 103 and allows curing light to pass through in order to cure a layer of the molding material on the platform or on a previously cured layer of the molding material in order to form or build the 3D object from the molding material on the platform.

[0028] The actuator 104 is generally any suitable motor or moving component that can be configured to move the platform 102 along a z-axis relative to the reservoir 103 during a forming or printing operation to build the 3D object. In some exemplary embodiments, the actuator 104 couples directly to a section of the cartridge or reservoir assembly 101 (see, for example, FIG. or Fig.10) In some exemplary embodiments, for example, when the reservoir arrangement 101 is not a cartridge and does not include a platform 102, the actuator 104 can couple directly to a component of the platform 102 located outside the reservoir arrangement 101 to move the platform during the forming process.

[0029] The light module 105 can be any suitable light source for curing the molding material into the intended 3D object. For example, and without limiting the scope of the present invention, since different molding materials are activated by different types of energy, the light module can implement different components to project the appropriate light to cure the molding material within the reservoir arrangement 101. Thus, while in some embodiments the light module can employ components for using blue or ultraviolet light, or another suitable wavelength, based on the properties of the molding material to activate the molding medium, it is clear to those skilled in the art that if a molding material or medium is used that requires other forms of energy, e.g.,For infrared light, laser light, X-rays, gamma radiation, and the like, the light module should be modified accordingly to generate and emit the required energy. For example, when projecting infrared light onto the molding medium, suitable hardware and software must be used so that a projector in light module 105 can generate and project this infrared light. When using X-rays or gamma radiation, however, the projector can be completely replaced by an energy emitter that can generate and emit the corresponding form of energy onto the molding medium.

[0030] In some exemplary embodiments, the light module 105 can include multiple light generators that can be used to increase the maximum build volume while maintaining a desired resolution. In such embodiments, the light generators can be placed in a pre-made holder to keep them in position. In some other embodiments, one or more light generators can be used and moved simultaneously across the build volume to ensure resolution while maintaining maximum build volume.In some exemplary embodiments, multiple alternators can be used to print multiple products contained in a single reservoir arrangement 101, such as a cartridge with two reservoirs and two platforms suitable for producing two 3D products in a single batch; this configuration can be useful for printing products that might require different components with different mold materials, which would otherwise require molding in separate batches.For example, and without limiting or deviating from the scope of protection of the present invention, a set of dentures can be formed in a single batch, wherein one reservoir of the reservoir arrangement is provided for the gingival component of the denture, which requires a first forming material, and a second reservoir of the reservoir arrangement is provided for the tooth component of the denture, which requires a second forming material. See . Fig. 6 as a non-restrictive example of a reservoir arrangement suitable for accommodating two mold materials and printing multiple 3D objects in a single build batch.

[0031] Controller 106 is a suitable controller responsible for receiving model data from a remote computer or locally, processing images, and controlling the actuator 104 and the light module 105 so that the system 100 can form the intended 3D objects. For these purposes, while several configurations for controller 106 are possible without deviating from the scope of protection of the present invention, controller 106 is generally configured to actuate the platform 102 and emit curable light into the reservoir 103 to form the intended 3D object, for which a suitable amount of molding material is enclosed in a reservoir arrangement 101 for limited or short-term use.

[0032] Furthermore, in some exemplary embodiments, as discussed below, the system 100 can include one or more adapters 107 to facilitate the use of the reservoir arrangement 101 with conventional or existing additive manufacturing devices such as 3D printers. For example, Fig. 3 - Fig. 5 an adapter arrangement that retrofits or adapts a transparent substrate or glass of an existing alternator to accommodate a reservoir arrangement or cartridge according to some exemplary embodiments of the present invention. In another example, shows Fig. 7 an adapter that retrofits or adapts an existing tank to accommodate a reservoir arrangement or cartridge according to some exemplary embodiments of the present invention.

[0033] Fig.Figure 1A illustrates a sectional view of a cartridge according to some exemplary embodiments of the present invention. More precisely, it illustrates Fig. Figure 1A is a sectional view of the reservoir arrangement 101, which is a cartridge according to exemplary embodiments of the present invention. As described below, in the embodiment of Fig.1A The reservoir assembly or cartridge 101 includes both a reservoir 103, which receives a molding material or resin 108, and a platform 102, which is movably mounted in the cartridge 101. In this embodiment, the cartridge 101 is pre-filled and sealed with light-curing resin 108. This embodiment of the cartridge 101 allows operators to perform a printing or build operation with minimal handling of the resin and eliminates the need to measure the amount of resin during setup. In some exemplary embodiments, the resin 108 is in the form of a liquid or paste. The resin 102 is cured using visible and / or ultraviolet (UV) light.

[0034] In this embodiment, the cartridge 101 encloses an outer housing that at least partially forms the reservoir 103 and is designed to accommodate the platform 102 within the housing. In exemplary embodiments, a cavity 109 is formed between the platform 102 and the inner walls of the reservoir 103, the cavity 109 being pre-filled with the resin 108 or otherwise suitable for receiving it. In exemplary embodiments, the base surface 110 of the platform 102 is a build surface on which the intended 3D object is cured during a build process. In the sealed or ready-to-use state, the platform 102 is secured against a base surface 111 of the reservoir 103, which is transparent, optically clear, or otherwise configured to allow the passage of curing light, for example, UV light, to enable polymerization during use of the cartridge 101.

[0035] In an initial stage or before use, the cartridge 101 is preferably sealed so that the surface 110 of the platform 102 is secured against the surface 111 of the reservoir 103, thereby preserving the integrity of the resin receiving cavity 109 and ensuring that the resin 108 remains fresh in the cartridge 101 before use. During operation, as described in Fig.As shown in Figure 1A, in step (1) the cartridge 101 is arranged or positioned so that it can be exposed to a curing light from a light module of the system 100. In step (2), the platform 102 is lifted or otherwise moved along a z-axis with respect to the reservoir 103, so that the surface 110 of the platform 102 separates from the surface 111 of the reservoir 103, allowing the resin 108 to flow from the cavity 109 into the space between the surfaces 110 and 111 of the platform 102 and the reservoir 103, respectively. This can be achieved by activating the actuator 104, which is designed to move the platform 102, for example, up and down, so that the platform 102 is lifted from and lowered back onto the reservoir 103.In exemplary embodiments, an adapter 107 is used to attach the cartridge 101 to a mounting structure, for example, to a transparent carrier plate of the light module 105. During or between movements of the platform 102 along the z-axis, the light module can be activated to emit curing light and cure a layer of the resin 108 on a surface of the platform 110. In step (3), the process of moving the platform 102 and directing light from the light module 103 into the reservoir through the transparent surface 111 is repeated, so that a 3D object can be formed layer by layer inside the reservoir 103.

[0036] In some exemplary embodiments, the cartridge 101 further comprises a penetrable or sealing layer 112 on its upper surface. The penetrable layer 112 is configured to seal the resin and secure the platform 102 in place. As mentioned above, the build platform surface 110 is a surface to which the printed part adheres during the printing process. In some exemplary embodiments, the build platform 110 is configured to support the built part during the forming process. In some exemplary embodiments, the platform 102 can have a dimension of approximately 2500 mm. 2or include less. In some exemplary embodiments, the build surface 110 allows the use of application-specific containers to minimize resin consumption for small print runs. In some exemplary embodiments, the cartridge 101 and the build surface 110 can be provided as a single cartridge that can be used to build specific components, for example, a dental device. After build, the cartridge 101 and the build surface 110, or the cartridge alone, can be used up and disposed of or recycled.

[0037] As mentioned above, the cartridge 101 includes a surface 111, which is generally a printing screen. In some exemplary embodiments, the printing screen is the surface that allows light to pass through for the curing of the resin 108. The printing screen may be bonded to the cured resin 108. However, the bond between the printing screen and the resin is generally weak, so that the 3D-printed part, or each layer formed from it, can be separated from the printing screen to form the next layer.

[0038] In some exemplary embodiments, the formation of the 3D object 200 takes place inside the cartridge 101, which is prefilled with the resin 108, as shown in Fig.Figure 2 shows that in some exemplary embodiments, a Z-axis arm of a 3D printer closes a connection assembly 201. The connection assembly 201 is configured to fit the platform 102 of the cartridge 101 and to break a seal for the molding material within the cartridge 101. Once the molding of the 3D object is complete, the 3D object or 3D-printed part 202 can be removed from the cartridge 101, and the platform 102 can be disposed of or recycled. With this type of build platform configuration, the platform arm and the external components of the additive manufacturing device have very little contact with the molding material (e.g., resin) and do not require cleaning by the user.

[0039] In another embodiment, the build surface 110 is located outside the cartridge 101. In some exemplary embodiments, the build platform 110 can be arranged on the Z-axis arm of the 3D printer. In this arrangement, the build platform 110 is located on the Z-axis arm. In some exemplary embodiments, the build platform 110 has an arrangement that allows it to pierce the seal on the top of the cartridge 101 and access the resin 102 to initiate the printing process.

[0040] In some exemplary embodiments, the platform 102 interacts with a penetrable layer or sealing surface in various ways to access the mold material. The interaction methods may include a piercing interaction method and an interaction method with the integrated platform. In a piercing interaction method, the sealing surface of the cartridge 101 may be pierced by the platform. In some exemplary embodiments, the piercing is designed to prevent contamination of the resin by the sealant.

[0041] In one method of interaction with the integrated platform, the platform is located within the cartridge 101. In some exemplary embodiments, a mechanism connected to the Z-axis arm interacts with the platform and couples the platform to initiate the printing process. There can be a few variations of this system. In some exemplary embodiments, the platform pierces a penetrable layer before the printing process is initiated. In another embodiment, the penetrable layer moves and flexes according to the printing cycle. In some exemplary embodiments, the penetrable layer is made of a flexible material.

[0042] With reference to Fig. 3 - Fig.Figure 5 shows an adapter arrangement. More precisely, the adapter arrangement shown is configured to retrofit or adapt an existing transparent substrate or glass of an alternator to accommodate a reservoir arrangement or cartridge according to some exemplary embodiments of the present invention. In exemplary embodiments, the adapter components (301, 302, and 303) can interact with the cartridge 101 either by mechanical or magnetic attachment. In some exemplary embodiments, the adapter components (301, 302, and 303) can be a fixed component that becomes part of the additive manufacturing device, such as an existing 3D printer. In another embodiment, the adapter components (301, 302, and 303) can include removable parts, wherein the components are securely attached to the printer and are accessible or movable for the user.

[0043] For example, and without deviating from the scope of protection of the present invention, shows Fig. 3 an exemplary reservoir arrangement adapter frame 301 configured to connect to a sieve or transparent plate 302 which is in Fig. 4 shown, of a 3D printer or to couple to a light module of a 3D printer (not shown). The reservoir assembly adapter frame 301 is also configured to accommodate a cartridge holder 303, which is in Fig. Figure 5 shows a cartridge or reservoir arrangement of a cartridge according to the present invention.

[0044] With reference to Fig.Figure 6 illustrates an exploded view of a cartridge 600 of a single DLP printer. In some exemplary embodiments, the single DLP printer is used to print with multiple materials simultaneously. The single DLP printer includes a platform that can be divided but does not have independent Z-axis controls. In some exemplary embodiments, the cartridge 600 can be a disposable reservoir arrangement that receives the printing resin or molding material during the molding or printing process. In some exemplary embodiments, the cartridge 600 is pre-filled with light-curing resin; in some exemplary embodiments, several types of curable resin can be sealed and received in the cartridge 600. For these purposes, the cartridge 600 includes one or more compartments (602 and 604). The cartridge 600 physically separates the resin into separate compartments (602 and 604), which can be achieved with a separating element 605.

[0045] In some exemplary embodiments, the cartridge 600 further comprises a platform 606 that includes multiple build surfaces 607 and 608. The cartridge 600 is similar to the cartridge 101 described above, but includes multiple (i.e., in this case, two) reservoirs and two built-in build surfaces 607 and 608 suitable for building components of a 3D-printed part that may require different materials or different parts, for example, a set of dentures or a dental appliance. In some exemplary embodiments, the cartridge 600 further comprises two printing screens or bottom surfaces 609 and 610, which are transparent and function similarly to surface 111—they retain the molding material within the cartridge 600 and allow suitable light to pass through to cure the molding material therein to build the intended 3D objects.

[0046] With reference to Fig.Figure 7 illustrates a perspective view of a resin tank or reservoir assembly 700. The reservoir assembly 700 can be provided sealed and pre-filled with resin, or it can simply be provided so that the user can fill it with molding material as needed. Therefore, this is an alternative to a cartridge configuration of the present invention, but an embodiment in which a reservoir assembly is used in conjunction with a separate platform configured to snap into the reservoir assembly 700. In some exemplary embodiments, the reservoir assembly 700 encloses a reservoir 701, the volume of which is smaller than that of conventional molding material tanks. The small volume is limited to the production of a single model build-up. The reservoir assembly 700 is configured to receive or retain a light-curable resin or molding material.In some exemplary embodiments, the reservoir 701 of the reservoir arrangement 700 is pre-filled with molding material. In some exemplary embodiments, the reservoir 701 of the reservoir arrangement 700 is designed to maximize the resin height with a minimum cross-sectional area, the cross-sectional area being configured to optimize for the amount of resin used.

[0047] In some exemplary embodiments, the minimum cross-sectional area of ​​reservoir 701 can accommodate up to a single 3D-printed object. For example, the minimum cross-sectional area is designed to accommodate precisely the amount of mold material required to produce a single crown. The reduction of the cross-sectional area in conjunction with a build platform 800 (see Fig.8) leads to a displacement of the resin, thus enabling easier resin flow. In some exemplary embodiments, the reservoir arrangement 700 comprises a smaller printing surface or a smaller printing screen 702. In some exemplary embodiments, the smaller printing screen allows the use of alternative materials for an optically clear printing surface.

[0048] In exemplary embodiments, as shown in the view of Fig.Figure 7 shows an outer or surrounding surface 703 configured to sit on a conventional mold material tank, so that a conventional 3D printer, for example, can be retrofitted to be used with the reservoir assembly 700 and thus according to the present invention. A frame 704 can, for example, support the surrounding surface 703 and thus the reservoir 701 of the reservoir assembly 700. During use, the reservoir assembly 700 can simply be placed over a conventional tank.

[0049] With reference to Fig.Figures 8-9 show various perspective views of a build platform 800. The build platform 800 is identical to a larger build platform. In some exemplary embodiments, the build platform 800 includes a Z-axis arm. In some exemplary embodiments, the build platform 800 also includes a pressure area 801. The pressure area 801 of the build platform 800 can be modified to fit into the pressure screen 702 of the reservoir assembly 700. In some exemplary embodiments, the build platform 800 also includes at least one built-in heating device, for example, a heating device such as that described in U.S. Patent Application 1,799,0256, which is incorporated by reference. The build platform 800 can utilize a larger surface area exposed to the resin to achieve a faster heating time.

[0050] Referring to the next set of figures, illustrates Fig.10 an exploded view of a cartridge according to some exemplary embodiments of the present invention, and Fig. Figure 11 illustrates a perspective view of a cartridge according to the one in Fig. Figure 10 illustrates the embodiment. More specifically, the cartridge 1000 includes a platform adapter 1001, which both seals the cartridge and provides a connection to an actuator or motion arm of an additive manufacturing device such as a 3D printer; a platform 1002; a reservoir assembly 1003 designed to snap into the platform 1002; a reservoir assembly adapter body 1004 configured to accommodate at least one section of the reservoir assembly 1003 of the cartridge 1000; a reservoir assembly adapter 1005; and an adapter base 1006 configured to attach the cartridge 1000 to the additive manufacturing or printing device (not shown).

[0051] In some exemplary embodiments, the cartridge 1000 comprises a disposable cartridge for building a three-dimensional (3D) object using an additive manufacturing device. In exemplary embodiments, the cartridge includes a reservoir assembly 1003, which includes a reservoir 1003a that is sealed and pre-filled with a molding material; a transparent layer 1003b designed to retain the molding material within the reservoir 1000, the transparent layer 1003b further being designed to allow polymerizing light to pass through for the polymerization of at least one layer of the molding material; and a platform 1002 that is slidably housed in the reservoir assembly, which is designed to move vertically along a z-axis with respect to the transparent layer 1003b and is designed to support a 3D object built on a surface 1002a of the platform 1002.

[0052] In some exemplary embodiments, the reservoir 1003a encloses a separating element (not shown in this view, but see Fig. 6), which divides the reservoir into several reservoirs designed to accommodate one or more types of molding materials; and the platform includes several build surfaces designed to snap into each of the multiple reservoirs.

[0053] In some exemplary embodiments, a cavity is formed between the platform and the reservoir assembly to retain the molding material within the cavity. In some exemplary embodiments, the movement of the platform during cartridge use exposes the molding material within the cavity to the build surface of the platform (see, for example, [reference]). Fig. 1A).

[0054] In some exemplary embodiments, the cartridge 1001 further comprises a penetrable layer or sealing surface on a top or bottom surface of the cartridge, configured to secure the platform within the reservoir when the cartridge is in a sealed state. In some exemplary embodiments, the sealing surface is made of a flexible material that moves and bends according to a forming cycle.

[0055] In some exemplary embodiments, the cartridge includes a platform adapter 1001 configured to connect the platform to an actuator of the additive manufacturing device (for example, a pressure arm (not shown in this view)). In some exemplary embodiments, the platform adapter 1001 is configured to pierce a penetrable layer that seals the mold material inside the reservoir 1003a of the reservoir assembly 1003.

[0056] In some exemplary embodiments, the cartridge 1000, as shown, further includes a reservoir assembly adapter 1005, which is configured to attach the reservoir assembly 1003 to a light module of the additive manufacturing device. In some exemplary embodiments, the reservoir assembly adapter 1005 interacts with the reservoir assembly via a mechanical fastener or a magnetic fastener incorporated therein. A base 1006 can be configured to attach the adapter to an existing printer or additive manufacturing device.

[0057] Fig. 12 Fig.Figure 17 illustrates various perspective views of adapters according to some exemplary embodiments of the present invention. More precisely, these figures show different types of adapters that attach a cartridge according to the present invention to an existing printer or additive manufacturing device.

[0058] Fig. Figure 12 shows a latch-based arrangement comprising a latch locking mechanism 1201, a cartridge receiving opening 1202, and an adapter base 1203. In this mechanism, the cartridge is held by a latch attached to the adapter. This latch can open upwards or to the sides.

[0059] Fig.Figure 13 shows a slide-based arrangement that includes a cartridge receiving opening 1302 (shown with a cartridge attached therein), a snap-lock mechanism 1301, and an adapter base 1303. In this mechanism, the cartridge is held by a feature on the adapter that is engaged and disengaged by means of a slide. Fig. Figure 14 shows the same components without the cartridge inserted inside.

[0060] Fig. Figure 15 shows a pivot-based arrangement that includes a cartridge receiving opening 1502, a locking mechanism 1501, and an adapter base 1503. This mechanism uses a pivot on the adapter to engage and disengage the cartridge. The pivot can be operated manually by the user or can be electronically activated.

[0061] Fig. 16 and Fig.Figure 17 shows an opening-based arrangement that includes a cartridge receiving opening, shown with a cartridge 1604, an opening locking mechanism 1601, 1603, and an adapter base 1602. In this mechanism, the cartridge is locked in and out by mechanical features similar to those of a camera. The opening is reduced to lock the cartridge in and enlarged to unlock it. This mechanism can be triggered manually by the user or electronically.

[0062] Advantageously, in some exemplary embodiments, the container of the present invention enables operators to perform the printing process with minimal handling of the resin, thus eliminating the need to measure the resin during setup. The build platform arm and external printer features have very little contact with resin and do not require cleaning by the user. The build platform is used for application-specific containers to minimize resin consumption for small print runs. The container is used to print with multiple materials simultaneously. Furthermore, the container and the build platform can be disposable or single-use items.

[0063] With reference to the next set of figures, another aspect of the present invention will now be discussed. Fig. 18 (a block diagram of a device or kit according to some exemplary embodiments of the present invention), Fig. 18-1 (a block diagram of a system according to some exemplary embodiments of the present invention), Fig. 18-2 (a flowchart of a process according to some exemplary embodiments of the present invention) and Fig. 19 (an exploded view of a 3D printed kit according to the present invention) is disclosed.

[0064] In general, these views illustrate embodiments of a printing device, which may be a single device or a system such as a kit for retrofitting an existing 3D printer to print multiple 3D objects or multiple three-dimensional components of a single object simultaneously; that is, during the same 3D printer print run.

[0065] In some embodiments, and in no way limiting the scope of the present invention, the kit can be a dual printing kit—with components suitable for retrofitting an existing 3D printer to print two 3D objects simultaneously. Of course, instead of "two," the kit can also be designed to print three, four, or any feasible plurality of 3D objects. The 3D objects can be of a wide variety, and they may or may not be related to one another. When the three objects relate to a single component or a single print job, the present invention has proven to be particularly efficient, as explained in more detail below.For example, and without limiting the scope of the present invention, a system according to this aspect of the invention can be used to print 3D objects such as dental components or dental devices using suitable biocompatible resins. In some exemplary embodiments, the 3D objects can include dentures, bite splints, aligners, or crowns, to name just a few non-limiting examples. In the case of dentures, for example, the gingival portion of the dentures can be built up using a first set of one or more biocompatible resins or printing materials stored in a first reservoir; and the odontoid portion of the dentures can be built up using a second set of one or more biocompatible resins or printing materials stored in a second reservoir.The 3D-printed gum tissue can be built on one build surface of the platform, while the tooth section can be built on a second build surface. Both components of the 3D-printed dentures (i.e., the teeth and gum tissue) can be built or printed simultaneously or in a single 3D printer run; as the printer platform is activated, both components of the dentures are built at the same time. This makes the production of the 3D-printed dentures more efficient.

[0066] Similarly, for bite splints or aligners or even crowns - treatments that often require several similar but not identical components - it makes sense to manufacture or print multiple versions simultaneously or in a single 3D printer run; as the printer platform is activated, several complementary or corresponding components (i.e., the desired bite splints, aligners, or crown sets) are produced at the same time.

[0067] In some exemplary embodiments, a dual-material system may comprise a kit. The kit may include: a dual build platform, a dual resin tank or reservoir, and an adapter. The dual build platform comprises two build surfaces on a single platform that are independent of each other—that is, each build surface is designed to hold a 3D-printed object that polymerizes only on that specific build surface; each build surface is dimensionally and spatially matched to its corresponding reservoir. The reservoirs are also independent of each other, so each reservoir is designed to hold a unique printing material, meaning that the printing material in each reservoir is suitable only for printing one 3D object on its corresponding build surface on the platform.In some embodiments, as discussed below, a unique printing material in one reservoir may differ in composition from a unique build material in a second reservoir (e.g., when building dental prostheses, the printable resin suitable for the prostheses is typically a different composition than the printable resin used to build the tooth portion of the prostheses). Furthermore, an adapter may be provided with the system to allow the reservoirs to be attached to an existing base or support structure of an existing 3D printer and to align the reservoirs with any of the build surfaces of the platform. As mentioned above, this device configuration enables simultaneous printing with two different photopolymer resins, significantly reducing the overall printing time and improving printing efficiency.

[0068] With specific reference to Fig.Figure 18 depicts a 3D printing system or kit suitable for retrofitting a 3D printer to print multiple 3D-printed objects. More specifically, this figure represents a system or kit 1800 comprising a platform 1801 designed for use with the 3D printer 1810, wherein the removable platform 1801 includes a plurality of build surfaces 1802 (i.e., although three build surfaces are shown, platform 1801 could also include only two build surfaces, or four, or five, etc., without departing from the spirit or scope of the present invention). Accordingly, platform 1801 is typically removable, allowing a user to retrofit their existing 3D printer with the capabilities of the present invention.As discussed below, in some embodiments a printer intended for the purposes described herein can be provided without deviating from the scope of protection of the present invention – and in these embodiments the platform 1801 need not necessarily be removable or interchangeable with other platforms. In exemplary embodiments, however, the platform 1801 is removable.

[0069] Furthermore, the system 1800 also includes a plurality of reservoirs 1803 designed to snap into one of the plurality of build surfaces 1802 of the platform 1801. In exemplary embodiments, each reservoir is sealable so that the reservoirs can be provided to a user pre-filled with printable material suitable for a specific 3D object or component for a 3D object, as discussed above. Accordingly, although not required, reservoirs 1803 can be sealable and contain a unique printing material ready for use (as discussed in more detail below). In other exemplary embodiments, the reservoirs can be sealable but are not pre-filled with printing material or resin; in such exemplary embodiments, a user must pour the printing material or resin into the reservoir before printing to initiate the printing process.

[0070] Furthermore, the system 1800 also includes an adapter 1804, which is configured to attach the multitude of sealable reservoirs 1803 to a base of the 3D printer 1810 such that: each of the multitude of sealable reservoirs 1803 is aligned with a curing light module 1813 of the 3D printer 1810, and each of the multitude of sealable reservoirs 1803 is aligned with and snaps into a corresponding build surface of the multitude of build surfaces 1802 of the platform 1801.

[0071] Accordingly, the provision of a removable platform 1801 (which includes the plurality of independent build surfaces 1802), a plurality of reservoirs 1803 and an adapter 1804 enables the retrofitting of an existing 3D printer 1810 for simultaneous printing according to the present invention, including, but not limited to, the simultaneous printing of multiple components or complementary 3D objects with several different photopolymer resins during a single print job - which significantly reduces the overall printing time and improves printing efficiency.For example, the platform 1801 can be coupled to a motion module of the 3D printer 1810 (typically an actuator or motor with an arm that can move the platform during the build process), and the adapter 1804 can be coupled to a base of the 3D printer 1810, such as a reservoir support structure suitable for receiving a reservoir for that 3D printer. Therefore, the adapter 1804 typically includes a geometry that snaps into the support structure 1812 of the 3D printer 1810. In some exemplary embodiments, the adapter 1804 is designed to be coupled to or snap into a body or housing of the curing light module 1813.For example, and without limiting the scope of the present invention, the adapter 1804 can include a geometry, circumference, or coupling that otherwise corresponds to or is designed to snap into a body of the curing light module of the existing printer, such as a display cartridge (e.g., an LCD display cartridge) or a housing that forms part of the curing light module 1813. In this way, the transparent substrate forming a base for each reservoir is appropriately positioned by means of the adapter 1804 to be aligned with both the platform and the curing light unit of the existing 3D printer.

[0072] As mentioned above, reservoirs 1803 are detachably coupled to the adapter 1804 to align the reservoirs with the platform (attached to 3D printer 1810) and the curing light module 1813 of the 3D printer 1810. Once the components of the system 1800 are in place, the controller 1814 of the 3D printer 1810 can be configured to move the platform and thereby simultaneously move the multiple build surfaces to promote the polymerization of each unique printing material in each reservoir on the build surfaces—layer by layer—to build a 3D-printed object on each of the platform's build surfaces.In exemplary embodiments, the controller 1814 can be configured to control the timing of the curing light exposure to accommodate different printing materials with varying curing times. That is, a suitable algorithm or software executable by the controller 1814 can be configured to control the curing light exposure time accordingly, completing jobs with shorter curing times first and then pausing until jobs with longer curing times are finished. Independent control of the curing light exposure towards one of the multiple reservoirs is desirable to accommodate curing times as well as 3D objects with different heights or dimensions.For example, and without limiting the scope of the present invention, if part A is built on a first reservoir and is 2 cm high, and part B is built on a second reservoir and is 3 cm high, the printing of parts A and B can be started simultaneously by projecting separate patterns for each part. Once part A is completed, the controller 1814 can prevent the light module 1813 from projecting a pattern for part A and proceed with the projection of a pattern for part B until part B is completed.

[0073] Fig.18-1 represents a similar system, but in this system all components—platform, reservoirs, and reservoir support structure—are integrated as a single, integrated 3D printer. As is known to those skilled in the art, using a dedicated device for the purposes of the present invention offers advantages, but it is also advantageous to be able to retrofit an existing printer to one that enables the functionalities according to the present invention.

[0074] Referring to the next figure, Fig. Figure 18-2 illustrates a flowchart of a process according to some exemplary embodiments of the present invention. More precisely, it illustrates Fig.Figure 18-2 shows a flowchart of method 1820, which is carried out using a 3D printer for the simultaneous printing of components of a dental device. It is understood that, although the steps of method 1820 are shown in a specific sequence, they may also include additional steps, and that in different embodiments more or fewer steps or even a different sequence are possible without deviating from the scope of protection of the present invention.

[0075] In step 1821, a detachable platform designed for use with the 3D printer can be included, the detachable platform comprising a variety of build surfaces. This can, for example, include coupling or connecting the platform 1801 to the printer 1810 – in some exemplary embodiments, the 3D printer can detect that the build platform is securely attached and ready for a print job.

[0076] In step 1822, a plurality of sealable reservoirs can be incorporated, each designed to snap into one of the multiple build surfaces of the platform and each designed to contain a unique printing material. This can, for example, include attaching the plurality of sealable reservoirs 1803 to a base of the 3D printer 1810 by means of an adapter 1804 in such a way that each of the plurality of sealable reservoirs 1803 is aligned with the curing light machine 1813 of the 3D printer 1810, the sealable reservoirs 1803 further being designed to snap into the plurality of build surfaces 1802 of the platform 1801.

[0077] In step 1823, the movable platform 1801 is moved and a curing light is projected to simultaneously build a 3D-printed object onto each of the build surfaces 1802 of the platform 1801. As mentioned above, this step can include controlling the curing light module 1813 in such a way that, since several different printing materials may have different curing times or different 3D objects may have different dimensions, a suitable algorithm or software executable by the controller 1814 can be configured to control the curing light exposure time for each respective reservoir accordingly.

[0078] Referring to the next set of figures, illustrate Fig. 19 - Fig. 32 different views of a multi-material printed kit according to exemplary embodiments of the present invention. Fig.Figure 19 illustrates an exploded view of a 3D printed kit according to the present invention. More precisely, it illustrates Fig. 19 a dual-material printing kit 1830, which includes a platform 1900, two reservoirs 2000 and an adapter 2100, wherein the platform 1900 has two different and independent build surfaces 1903 (see Fig. 20) includes and the plurality of reservoirs 2000 is designed to snap into the plurality of build surfaces 1903 of the platform 1900. In some exemplary embodiments, such as those shown in these views, the platform 1900 is defined at least partially by a main body from which several platform bodies 1904 extend to an end face, each forming one of the plurality of build surfaces 1903. That is to say, each of the plurality of build surfaces 1903 comprises a surface on one of the several platform bodies 1904 that form the platform 1900.

[0079] In some exemplary embodiments, each of the plurality of reservoirs 2000 can be designed to hold a unique printing material and snap into a corresponding build surface 1903. With this mechanism, each of the plurality of reservoirs 2000 can be adapted in its dimensions and position to a corresponding build surface of the plurality of build surfaces 1903. In some exemplary embodiments, each of the plurality of reservoirs 2000 can be designed to operate independently of the other reservoirs of the plurality of reservoirs 2000, meaning that each reservoir can be independently removed or attached to the adapter 2100, and that each reservoir can be used to independently build a 3D object that is different from a 3D object built in an adjacent reservoir.It is noteworthy that, although the 1900 platform essentially controls the simultaneous movement of each 1903 build surface, as discussed above, the curing light machine can be configured to accommodate different material curing times and 3D object dimensions by directing the appropriate light pattern for each point in time onto each reservoir area designed to receive the curing light. In this way, different 3D objects can be printed or built simultaneously using different printing materials.

[0080] As in Fig. 19 and Fig.As illustrated in Figure 27-1, the adapter 2100 can be designed to snap into the plurality of reservoirs 2000. In some exemplary embodiments, the adapter 2100 can be used to adapt an existing additive manufacturing device, such as a 3D printer, to retrofit a 3D printer for printing multiple 3D-printed objects using a 3D printing kit according to the present invention. In some exemplary embodiments, the adapter 2100 can be configured to attach the plurality of reservoirs 2000 to a 3D printer. In some exemplary embodiments, the adapter 2100 can be attached to the 3D printer or detachably coupled.

[0081] In some exemplary embodiments, the 3D printing kit can be a dual-material kit. In some exemplary embodiments, the Platform 1900 can be a dual build platform with a first build surface and a second build surface, as shown in Fig. 19 and Fig. 20 illustrated. In some exemplary embodiments, the plurality of reservoirs 2000 may be a double resin tank with a first resin tank and a second resin tank, as illustrated by Fig. 19 and Fig. Figure 22 illustrates where the first reservoir may be designed to receive a first printing material and the second reservoir may be designed to receive a second printing material.

[0082] Fig. Figure 20 illustrates a perspective view of a platform of a 3D printed kit according to the present invention from the rear bottom. As shown in Fig.As shown in Figure 20, the platform 1900 can include a platform handle 1901, a platform cover 1902, and multiple build platform bodies 1904, each of the multiple build platform bodies enclosing a build surface 1903. In some exemplary embodiments, the multiple build platform bodies 1904 are mechanically attached to one another, and in some embodiments, as shown in this view, they are formed integrally with a body of the platform 1900.

[0083] In some exemplary embodiments, the platform handle 1901 can be designed to facilitate handling of the platform by a user of a 3D printing kit according to the present invention. In some exemplary embodiments, the platform handle 1901 can further be designed to attach the platform 1900 to a 3D printing device. For example, without limiting the scope of the present invention in any way, in some exemplary embodiments the platform 1900 can be attached to a print arm of a 3D printing device. In some exemplary embodiments, as shown in Fig.Figure 21 illustrates that the platform handle 1901 includes a U-shaped recess to allow the attachment of the platform handle 1901 to a 3D printing device. In other exemplary embodiments, other shapes and structural archetypes for the platform handle 1901 can be implemented for the purpose of attaching said platform handle 1901.

[0084] In some exemplary embodiments, the lower part of the platform handle 1901 can be detachably attached to the platform cover 1902 by means of a fastening mechanism. For example, and in no way limiting the scope of protection of the present invention, the fastening mechanism can include a plurality of nuts and bolts arranged along the outer edges of the lower part of the platform handle 1901 and an upper central region of the platform cover 1902.

[0085] In some exemplary embodiments, the platform cover 1902 can be detachably attached to the multiple build platform bodies 1904. For example, and in no way limiting the scope of protection of the present invention, the fastening mechanism can consist of a plurality of nuts and bolts arranged along the outer edges of the platform cover 1902 and the upper part of the multiple build platform bodies 1904. In some exemplary embodiments, the fastening mechanism is designed to fix and seal the multiple build platform bodies 1904 to prevent material such as a photopolymer resin or other contaminants from penetrating the multiple build platform bodies 1904.

[0086] In some exemplary embodiments, the multiple build platform bodies 1904 are arranged parallel to one another, and each of the multiple build platforms can enclose a build surface 1903. In some exemplary embodiments, each build surface 1903 can be designed to independently build a 3D-printed object while being positioned in the same horizontal plane as each other build surface 1903, thus facilitating the simultaneous creation of multiple 3D-printed objects. In some exemplary embodiments, each build surface 1903 can be designed to promote the polymerization of a unique printing material. For example, and in no way limiting the scope of protection of the present invention, each build surface 1903 can be designed to promote the polymerization of a unique photopolymer resin.In some exemplary embodiments, the material comprising the build platform 1904 can be hard-anodized aluminum with a laser-etched pattern to optimize adhesion. In other exemplary embodiments, the build platform 1904 of a 3D-printed kit can consist of other materials that optimize adhesion, as is known to those skilled in the art.

[0087] Fig. Figure 21 illustrates an isometric side view of a platform of a 3D printed kit according to the present invention and further illustrates a detailed view of the interior of the multiple build platforms. In some exemplary embodiments, as shown in Fig.As illustrated in Figure 21, the interior of the multiple build platform bodies 1904 can include a temperature sensor 1905, an overheating protection device 1906, and a heating pad 1907, wherein the heating pad 1907 can be configured to heat each of the multiple build platform bodies 1904 to ensure a uniform temperature distribution during the printing process and to guarantee more uniform heating of the photopolymer resin. In some exemplary embodiments, the heating pad 1907 can further be configured to heat each of the multiple build platform bodies 1904 independently, depending on the type of printing material used to print the 3D-printed object.

[0088] In some exemplary embodiments, the heating pad 1907 can be designed to reach a maximum temperature. For example, and in no way limiting the scope of the present invention, the heating pad 1907 can be designed to heat to a maximum temperature of 40 °C. In some exemplary embodiments, the temperature sensor 1905 can be configured to dynamically monitor the heating temperature of each of the multiple build platform bodies 1904 in real time. In some exemplary embodiments, the overheating protection device 1906 can be designed to deactivate the heating pad 1907 when the temperature of the multiple build platforms exceeds a certain threshold, in order to prevent the heating pad 1907 from malfunctioning due to excessive temperature or causing burns to the user.

[0089] Fig.Figure 22 illustrates an isometric side view of the plurality of tanks of a 3D printed kit according to the present invention. In some exemplary embodiments, as shown in Fig.As shown in Figure 22, each reservoir 2003 of the plurality of reservoirs 2000 can enclose a reservoir cover 2001, each reservoir 2003 being designed to receive a printing material in a sealed manner. In some exemplary embodiments, the reservoir cover 2001 can be removably positioned on the top of each reservoir 2003. In some exemplary embodiments, the material of the reservoir cover 2001 can be rubber. For example, and in no way limiting the scope of the present invention, the material of the reservoir cover 2001 can be a thermoplastic polyurethane (TPU) or another material with rubber and plastic properties. When a reservoir 2003 is in a resting state, the reservoir cover 2001 can be placed on that reservoir 2003 to prevent the printing material contained in the reservoir 2003 from being damaged by exposure to air or light from the external environment.Each reservoir 2003 of the plurality of reservoirs 2000 is designed to be independent of the other reservoirs of the plurality of reservoirs 2000 and is designed to hold a unique printing material. For example, and in no way limiting the scope of the present invention, each reservoir 2003 can hold a unique photopolymer resin. In other exemplary embodiments, each reservoir 2003 of the plurality of reservoirs 2000 can hold the same printing material. In some exemplary embodiments, the plurality of reservoirs 2000 can be a dual reservoir comprising a first reservoir and a second reservoir, wherein the first reservoir holds a first printing material and the second reservoir holds a second printing material, the first printing material and the second printing material being two different types of photopolymer resins.

[0090] Fig.Figure 23 illustrates an exploded view of one of the plurality of reservoirs of a 3D printing kit according to the present invention. In some exemplary embodiments, as shown in Fig.As illustrated in Figure 23, each reservoir 2003 can enclose a handle 2002, an RFID tag 2006, and a membrane 2007. In some exemplary embodiments, the handle 2002 can be positioned on the side of each reservoir 2003, such that the handle 2002 faces the user and is designed to facilitate the user's handling of the reservoir 2003. In some exemplary embodiments, the RFID tag 2006 is arranged on the rear of each reservoir 2003, the RFID tag 2006 being designed to detect whether the reservoir 2003 is connected to the adapter 2100 of a 3D-printed kit according to the present invention. In some exemplary embodiments, the RFID tag 2006 connects to a reader 2102, which is positioned on the rear of the adapter 2100, when the reservoir 2003 is inserted into the adapter 2100.The reader 2102 can be configured to detect and read information stored in the RFID tag 2006 indicating that the reservoir 2003 is connected to the adapter 2100. In some exemplary embodiments, the RFID tag 2006 can be writable and configured to store relevant information about the reservoir 2003. For example, and in no way limiting the scope of the present invention, the RFID tag 2006 can include information regarding the amount of printing material held in the reservoir 2003, the type of printing material held in the reservoir 2003, and the number of remaining printing cycles.

[0091] In some exemplary embodiments, the reservoir also includes a membrane 2007, which is arranged at the bottom of the reservoir 2003. In some exemplary embodiments, the membrane 2007 can be made of a material that improves durability and service life when in contact with highly corrosive printing materials. For example, and in no way limiting the scope of the present invention, the membrane material can be ACF-5 to improve the service life of the reservoir 2003, which is designed to hold highly corrosive photopolymer resins.

[0092] Fig. Figure 24 illustrates a rear view of a reservoir of a 3D printed kit according to the present invention. As shown in Fig.As illustrated in Figure 24, each side of each reservoir 2003 encloses an insertion space 2005 that fits into the protruding section 2103 of the base bracket of the adapter 2100. The protruding section 2103 extends into the fitting area of ​​the adapter for each reservoir 2003. Along the insertion / removal direction of the reservoir 2003, two positioning beads 2104 are arranged below the protruding section 2103. The positioning beads 2104 fit into the grooves 2004 of the reservoir 2003, thus securing the reservoir 2003 in the adapter 2100.

[0093] Alternatively, the positioning beads 2104 can be positioned above or to the side of the preceding section 2103, and the size and position of the positioning beads 2104 are matched to the grooves 2004, which are positioned above or to the side of the insertion spaces 2005 of the reservoir 2003. The number of positioning beads 2104 can be one or more. Alternatively, other mechanical structures capable of achieving positional locking can be used instead of the positioning beads 2104. Preferably, the height of the insertion channel or space 2005 gradually converges along the insertion direction of the reservoir 2003; in this way, the insertion of the reservoir will be smoother, providing the user with a better tactile experience.Furthermore, in exemplary embodiments, the locking mechanism utilizes one or more grooves 2004 in which one or more (for example, four) detents provide a holding force by being pressed downwards to secure the reservoir in position. An insertion channel along a depth of the insertion spaces 2005 primarily serves as a guide to ensure correct alignment during tank installation.

[0094] When the reservoir 2003 is inserted into the adapter 2100, the protruding section 2103 of the base bracket slides into the insertion space 2005, and the eight positioning beads 2104, located below the protruding section 2103, fall into the grooves 2004 located below the insertion space 2005. Additionally, the positioning beads 2104 emit a sound when they fall into the grooves 2004 to indicate to the user that the reservoir 2003 is securely positioned.

[0095] In some exemplary embodiments, the underside of the adapter 2100 is further equipped with two sets of hooks 2105 and 2106, located on the right and left sides of the adapter 2100, respectively. The two sets of hooks 2105 and 2106 are configured to attach the adapter 2100 to the 3D printing device; for example, and without limiting the scope of the present invention, these hooks can couple to a body of the curing light unit of the 3D printer. Of course, other coupling components can be used, such as the use of similar or corresponding complementary geometries or surfaces on the adapter body that correspond to and snap into similar or corresponding complementary geometries or surfaces on a structure of the 3D printer.For example, in some exemplary embodiments, the adapter 2100 is designed to couple directly to an LCD cartridge of an existing 3D printer, for which the kit 1830 can be used to retrofit the printer for multi-material printing according to the present invention.

[0096] Fig. Figure 25 shows a top view of one of the many reservoirs or Reservoir 2003. Fig. Figure 26 shows a cross-sectional view at location AA in Fig. 25. Fig. Figure 27 shows a cross-sectional view of the multitude of reservoirs in a stacked state, and Fig. Figure 27-1 shows reservoirs coupled with adapter 2100. As in Fig.As shown in Figure 27, two or more resin tanks or reservoirs 2003 with reservoir covers 2001 can be designed for efficient storage. For example, and without limiting the scope of the present invention, the reservoirs 2003 can be stackable to facilitate easier storage and handling by a user. This can be achieved in various ways, including, for example, by implementing a suitable shape on a surface of the reservoir cover 2001. As shown in this view, a concave shape can be formed on a top surface of the cover with three ribs 2008 on each side of the concave shape (see also Figure 27). Fig. 23). As in Fig.As shown in Figures 24-27, the ribs 2008 run tangentially to the lower steel ring 2009 of reservoir 2003 when the reservoirs 2003 are stacked, and the shapes of both fit together or snap into each other, allowing the reservoirs to be stacked securely. The reservoirs can then be decoupled, unstacked, and coupled when used with adapter 2100, as shown in Fig. 27-1 shown.

[0097] Fig. Figure 28 shows an isometric side view of the 2100 adapter. Fig. Figure 29 shows a top view of adapter 2100, and Fig. Figure 30 shows a cross-sectional view at location AA in Fig. 29. In some exemplary embodiments, as in Fig.As shown in Figure 22, the reservoir 2003 further includes a handle 2002, an RFID tag 2006, and a membrane 2007. The handle 2002 can be positioned on one side of the reservoir 2003, the handle 2002 can be positioned facing the user, and the handle 2002 should be configured to facilitate the user's handling of the reservoir 2003. As shown in Fig. As shown in Figure 23, the RFID tag 2006 is attached to one side of the reservoir 2003, in this case a rear or back side, and the RFID tag 2006 is configured to detect whether the reservoir 2003 is connected to the adapter 2100. Specifically, when the reservoir 2003 is inserted into the adapter 2100, the RFID tag 2006 connects to the reader 2102 (see Figure 23). Fig.30), which is positioned within the rear of the adapter 2100, the reader 2102 being able to detect and read the information stored in the RFID tag 2006, indicating that the reservoir 2003 is connected to the adapter 2100. Furthermore, the RFID tag 2006 is writable and can store relevant information about the reservoir 2003, such as whether photopolymer resin is present in the reservoir 2003, the type of photopolymer resin, and the number of printing cycles.

[0098] Fig. 31A- Fig. Figure 31B illustrates a perspective view of the adapter 2100 from the rear bottom. More specifically, these views also illustrate the base structure of the adapter 2100. Furthermore, as shown in Fig. 24 shows each side of the reservoirs 2003 having an insertion space 2005, which corresponds to the preceding section 2103 of the base bracket of the adapter 2100, as shown in Fig.28 shown. The preceding section 2103 extends into the fitting area of ​​the adapter for each reservoir 2003. Along the insertion / removal direction of the resin tank 2003, two positioning beads 2104 are positioned below the preceding section 2103, which in Fig. 31A and Fig. 31B can be seen. The positioning beads 2104 fit into the grooves 2004 of the resin tank 2003, thus securing the resin tank 2003 in the adapter 2100.

[0099] Fig. Figure 32 shows a cross-sectional view at location BB in Fig. 29. In some exemplary embodiments, as in Fig.Figure 32 shows the RFID tag 2107 positioned in the center of the back of the adapter 2100. The RFID tag 2107 is designed to detect whether the adapter 2100 is connected to the 3D printing device. In some exemplary embodiments, when the RFID tag 2107 is connected to a reader on the 3D printing device, the reader can detect and read the information stored in the RFID tag 2107, indicating that the 3D printing device is connected to the adapter 2100.

[0100] Fig. Figure 33 illustrates an exemplary flowchart for reading the RFID of an adapter of a 3D printed kit according to the present invention. The RFID tag 2006 is designed to be writable and to store relevant information about the reservoir 2003 to which it corresponds.

[0101] When activated by the Hall sensor, the MCU on adapter 2100 switches from sleep mode to an active state. The RFID reader 2102 on adapter 2100 is then activated to retrieve information from the RFID tag 2107, which is attached to reservoir 2003. If the retrieved information remains unchanged, the MCU returns to sleep mode. However, if a change is detected, the MCU first silences the active RFID tag 2107 to prevent communication conflicts. It then writes the updated information to the active RFID tag 2107 and subsequently reactivates it, allowing the printer software to query the information. After this process is complete, the MCU returns to sleep mode.

[0102] The invention offers the following advantages: It enables simultaneous printing with different photopolymer resins; and significantly improves printing efficiency, as shown in the following tables, where Table 1 shows results for a conventional printer and Table 2 shows results using a device according to the present invention: Table 1 Step Current system AufbauDM Pressure Clean setup AufbauKrone Pressure Ready Time 2 min 25 min 4 min 2 min 15 min / Total time 48 min Table 2 Step Dual system DM and Krone construction Pressure Ready Time 3 min 25 min / Total time 28 min

[0103] As can be seen from Table 1 and Table 2, the use of the dual-material kit can reduce printing time by up to 42%. The present invention provides a printing device for a dual-material kit that enables simultaneous printing with two different photopolymer resins, thereby significantly reducing the overall printing time and improving printing efficiency.

[0104] Although the disclosure is described with reference to exemplary embodiments, it will be clear to those skilled in the art that various modifications can be made and equivalents for elements thereof can be substituted without altering the scope of protection of the disclosure. Furthermore, many modifications can be made to adapt a particular system, device, or component thereof to the teachings of the disclosure without altering its essential scope of protection. Therefore, it is intended that the disclosure is not limited to the specific embodiments disclosed for the purpose of carrying out this disclosure, but rather that the disclosure includes all embodiments that fall within the scope of protection of the accompanying claims. Moreover, the use of the terms first, second, etc., does not denote any order or importance, but rather the terms first, second, etc., are used to indicate the order of priority of the invention.used to distinguish one element from another.

[0105] The terminology used herein serves only to describe certain embodiments and is not intended to limit the disclosure. As used herein, the singular forms "a," "an," and "the" are to include the plural forms unless the context clearly indicates otherwise. It is further understood that the terms "includes" and / or "comprehensive," when used in this patent specification, specify the presence of certain features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0106] The description in this disclosure serves only for illustration and description; it is neither exhaustive nor limited to the disclosure as disclosed. Numerous modifications and variations will be apparent to those skilled in the art without departing from the scope of protection of the disclosure. The described embodiments have been selected and described to best explain the principles of the disclosure and its practical application, and to enable other skilled in the art to understand the disclosure for different embodiments with different modifications, as appropriate for the respective intended particular use. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] US 17990256

[0049]

Claims

[1] A three-dimensional printing system (3D printing system) for retrofitting a 3D printer for printing multiple 3D-printed objects, comprising: a platform that can be removed from the 3D printer and includes a variety of build surfaces; and a removable adapter from the 3D printer, configured to attach a variety of independent reservoirs to the 3D printer, each of the variety of independent reservoirs being designed to hold one or more printing materials, to be aligned with a curing light machine of the 3D printer and to snap into a corresponding build surface of the variety of build surfaces of the platform. [2] The 3D printing system according to claim 1, wherein the adapter is designed to be coupled to a body of the curing light machine of the 3D printer. [3] The 3D printing system according to claim 1, wherein each reservoir holds a unique printing material. [4] The 3D printing system according to claim 1, wherein each build surface is designed to independently build a 3D printed object while being positioned on the same horizontal plane as each other build surface. [5] The 3D printing system according to claim 1, wherein the build surfaces are arranged parallel to each other. [6] The 3D printing system according to claim 1, wherein an interior of the platform includes a temperature sensor. [7] The 3D printing system according to claim 1, wherein an interior of the platform includes an overheating protection sensor. [8] The 3D printing system according to claim 1, wherein an interior of the platform includes a heating element designed to heat one or more of the build surfaces. [9] The 3D printing system according to claim 1, wherein one or more of the reservoirs enclose a handle. [10] The 3D printing system according to claim 1, wherein the platform includes a hard anodized aluminium with a laser-etched pattern to optimize adhesion. [11] The 3D printing system according to claim 1, wherein the reservoirs are stackable. [12] The 3D printing system according to claim 1, wherein the reservoirs include a detection device configured to be detected by the 3D printer in order to detect when the reservoir is coupled to the 3D printer. [13] The 3D printing system according to claim 12, wherein the detection device includes an RFID tag. [14] The 3D printing system according to claim 12, wherein the detection device is writable and designed to store information about the reservoirs. [15] The 3D printing system according to claim 1, wherein each reservoir includes a membrane designed to improve durability when exposed to highly corrosive printing materials. [16] The 3D printing system according to claim 14, wherein the information about the reservoirs includes one or more of the following: a quantity of printing material that is stored in one or more of the reservoirs; a type of printing material that is contained in one or more of the reservoirs; or a number of remaining pressure cycles for one or more of the reservoirs. [17] The 3D printing system according to claim 1, wherein each of the plurality of reservoirs is independently removable and attachable to the removable adapter.

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