Resin stirring method and system for desktop light-curing printer and storage medium

Abstract

In order to solve the problems of the prior art, the present application provides a desktop light-curing printer resin stirring method and system and storage medium, wherein the method comprises: performing resin stirring processing once every interval K or K` time period, and the stirring processing comprises the following steps: step 101 controls the optical assembly to pause after completing printing of the current layer; step 102 controls the vertical displacement mechanism to drive the forming substrate to move upward along the vertical direction to a target height, and records the upward stroke L; step 103 controls the stirring mechanism to start and / or perform stirring movement in the resin tank for a preset number of times; step 104 controls the stirring mechanism to close and / or return to the initial position; step 105 controls the vertical displacement mechanism to drive the forming substrate to move downward along the vertical direction, and the movement stroke is L; and step 106 controls the optical assembly to start and continue printing. The present application realizes automatic analysis and control of the stirring frequency of the resin liquid of the desktop light-curing printer.

Description

Technical Field

[0001] This invention belongs to the field of additive manufacturing technology, specifically relating to a method, system, and storage medium for mixing resin in a desktop photopolymer printer. Background Technology

[0002] Desktop photopolymer printers are compact 3D printing devices based on photopolymerization technology (SLA / DLP / LCD), suitable for home, education, creative design and other scenarios.

[0003] Photopolymer printers include bottom-mounted printers and top-mounted printers. Bottom-mounted printers use a top-down printing method and require a larger amount of resin. Therefore, desktop photopolymer printers commonly use top-mounted printers that print from bottom to top.

[0004] Because the resin solution is affected by ambient temperature, humidity, and laser irradiation during printing, different areas of the resin solution may exhibit varying degrees of curing and different flowability. For simple, small-sized prints, due to the short printing time, the resin solution can be stirred after each print run to ensure uniform mixing. However, for complex, large-sized prints with longer printing times, stirring is necessary during printing to guarantee a high yield rate. In this case, excessive stirring can reduce printing efficiency, while prolonged periods without stirring can lead to uneven resin distribution and uncontrollable defects. Currently, the timing of resin stirring relies heavily on user experience, making it difficult to accurately control the stirring frequency. New users need to print many components to determine the appropriate stirring frequency. Since the primary user group for desktop UV curing printers is individuals or small companies, this significant trial-and-error time and material costs are clearly detrimental to the promotion and use of desktop UV curing printers. Summary of the Invention

[0005] This invention addresses the problems existing in the prior art by providing a method for stirring resin in a desktop UV-curing printer. Specifically, the method involves stirring the resin at intervals of K or K', and the stirring process includes the following steps:

[0006] Step 101: Pause the process after the optical components have completed printing this layer.

[0007] Step 102: Control the vertical displacement mechanism to drive the molding substrate to move vertically upward to the target height, and record the upward stroke L;

[0008] Step 103: Control the stirring mechanism to start and / or perform a preset number of stirring movements in the resin tank;

[0009] Step 104: Control the stirring mechanism to shut down and / or return to its initial position;

[0010] Step 105 controls the vertical displacement mechanism to drive the molding substrate to move downward in the vertical direction, with a stroke of L;

[0011] Step 106 controls the optical components to start and continue printing.

[0012] Optionally, the intervals K and K' are preset stirring intervals;

[0013] Optionally, the intervals K and K' are obtained through the following steps:

[0014] Step 201: Obtain resin type A, resin input amount B, current ambient temperature T, and current ambient humidity H;

[0015] Step 202: Based on resin type A and resin input amount B, obtain the stirring interval time K0 corresponding to standard temperature T0 and standard ambient humidity H0 from the database.

[0016] Step 203 calculates the current temperature difference TC = T - T0 and the ambient humidity difference HC = H - H0, and obtains the stirring time interval adjustment parameter D based on the following formula:

[0017]

[0018] In the formula, e is the natural constant, W is the temperature adjustment coefficient, and Q is the humidity adjustment coefficient; the temperature adjustment coefficient W and the humidity adjustment coefficient Q are obtained through preliminary experiments according to different resin types.

[0019] Step 204 determines the stirring interval K under the current ambient temperature T and current ambient humidity H by calculating K = D * K0, and performs resin stirring once every K time interval.

[0020] When printing starts in step 205, steps 101 to 104 are performed once. From the start of printing to the end of printing, the current ambient temperature T and the current ambient humidity H are obtained once at each preset time interval, and steps 103 to 104 are repeated once. The newly obtained stirring interval K` is used as the interval for the next stirring process.

[0021] Furthermore, after acquiring the infrared image data of the printing resin, a supplementary stirring process is performed, which includes the following steps:

[0022] Step 301 converts the infrared image data into a spatial infrared radiation distribution map;

[0023] Step 302-A: Based on the spatial infrared radiation distribution map, determine the spatial temperature distribution of each region. If the difference between the highest and lowest temperatures in the resin region exceeds the preset first temperature difference threshold of the resin, perform a resin stirring process and reset the interval time for the next resin stirring process based on the stirring interval time K.

[0024] Step 302-B: Convert the spatial infrared radiation distribution map into a spatial temperature grid distribution map according to the preset grid lines. If the difference between the highest and lowest temperatures in adjacent preset number of grids in the resin region exceeds the preset second temperature difference threshold of the resin, a resin stirring process is performed, and the interval time for the next resin stirring process is reset based on the stirring process interval time K.

[0025] You may choose to perform one of steps 302-A and 302-B above, or perform them simultaneously.

[0026] Furthermore, after acquiring the infrared image data of the printing resin, a heating control analysis is performed, which includes the following steps:

[0027] Step 401 converts the infrared image data into a spatial infrared radiation distribution map;

[0028] Step 402: Based on the spatial infrared radiation distribution map, determine the spatial temperature distribution in each region. When the average temperature of the resin region is lower than the preset temperature threshold, control the heating component to start.

[0029] Step 403 repeats step 402 until the average temperature of the resin area is higher than the preset temperature threshold after heating. Then, the heating component is turned off, and the interval time for the next resin stirring process is reset based on the stirring interval time K. The preset temperature threshold after heating is greater than or equal to the preset temperature threshold.

[0030] Furthermore, during step 402, the resin is stirred while the heating component is started.

[0031] During step 403, the heating component is turned off while the stirring mechanism is returned to its initial position.

[0032] Furthermore, the method for determining the resin region includes: using the area covered by the molding substrate in the resin tank as the first exclusion area, whereby the portion of the area in the resin tank excluding the first exclusion area is the resin region.

[0033] Furthermore, the first exclusion zone is proportionally reduced to the opposite side of the infrared image acquisition component based on the angle of the infrared image acquisition component toward the resin, as the height of the displacement portion of the vertical displacement mechanism increases.

[0034] Furthermore, the area of ​​the printed surface of the optical component located within the resin tank is designated as the second exclusion zone. In this case, the exclusion zone is the sum of the first and second exclusion zones, and the portion of the area within the resin tank excluding the exclusion zone is the resin area.

[0035] Furthermore, the target height mentioned in step 102 is a preset height value;

[0036] Furthermore, the target height mentioned in step 102 is obtained by the following method: target height U = U0 + Ud + Uk, where U0 is the height of the stirring mechanism, Ud is the height of the vertical displacement mechanism during the printing process, and Uk is an adjustment value greater than or equal to 0.

[0037] A second objective of this invention is to provide a desktop UV-curable printer resin stirring control system, which includes a processor that executes the steps in the above-described desktop UV-curable printer resin stirring method.

[0038] A third objective of this invention is to provide a storage medium that can be read by a computer to perform the steps in the above-described method for mixing resin in a desktop UV-curable printer.

[0039] The advantages of this invention are: it enables automatic analysis and control of the stirring frequency of resin liquid in desktop UV-curing printers, thereby significantly reducing the time and material costs for new users to try and fail. Attached Figure Description

[0040] Figure 1 The diagram shown is an overall structural schematic of a desktop UV-curing printer according to an example of the present invention.

[0041] Figure 2 The diagram shown is a structural schematic of the printing component portion of a desktop UV-curing printer according to an example of the present invention. Detailed Implementation

[0042] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0043] Please note that the terms "above", "below", "left", "right", "top", "top", "bottom", "bottom", etc., used in this invention to describe positional relationships do not represent the absolute positional relationship between modules / components / assemblies / parts / components, but rather the relative positional relationship between modules / components / assemblies / parts / components.

[0044] To more clearly illustrate the technical solution of this invention, this invention is based on Figure 1 The desktop UV-curing printer shown is illustrated as an example. Figure 1 The desktop UV-curing printer shown includes a printing component 2 and a protective component 1. The protective component 1 includes a protective housing 102, a protective cover 103, and a protective isolation panel 101, and protects the printing component 2. The protective cover 103 can rotate relative to the protective housing 102, thereby exposing or closing the printing part of the printing component 2, facilitating printing operations for the user.

[0045] like Figure 2 As shown, the printing assembly 2 includes a printing platform 201 and a control system. A resin tank 202 is positioned above the printing platform 201, and an optical assembly 203 is positioned below the corresponding location of the resin tank 202. A scraper mechanism 207 is provided on the printing platform 201, reciprocating within the resin tank 202. A vertical displacement mechanism 206 is provided outside the resin tank 202 in a vertical direction. The vertical displacement mechanism 206 drives a part-picking mechanism 205 and a molding substrate 204 to reciprocate in a vertical direction, and the molding substrate 204 can be inserted into the resin tank 202 and cover the working surface of the optical assembly 203.

[0046] This invention provides an exemplary method for resin stirring in a desktop UV-curing printer, specifically comprising: performing resin stirring at intervals of K or K', wherein the stirring process includes the following steps:

[0047] Step 101: Pause after controlling the optical assembly 203 to complete the printing of this layer;

[0048] Step 102: Control the vertical displacement mechanism 206 to drive the molding substrate 204 to move upward in the vertical direction to the target height, and record the upward stroke L;

[0049] Step 103 controls the scraper mechanism 207 to perform a preset number of reciprocating movements within the resin tank. Based on the desktop UV-curing printer of this invention, the reciprocating movements of the scraper mechanism 207 within the resin tank can agitate the resin liquid. For other desktop UV-curing printers, this step involves controlling the corresponding agitation mechanism to start or perform reciprocating movements within the resin tank to agitate the resin liquid.

[0050] Step 104 controls the scraper mechanism 207 to return to its initial position; based on the desktop UV-curing printer of this invention example, this step involves controlling the scraper mechanism 207 to return to its initial position. For other desktop UV-curing printers, this step involves controlling the corresponding stirring mechanism to close or return to its initial position.

[0051] Step 105 controls the vertical displacement mechanism 206 to drive the molding substrate 204 to move downward in the vertical direction, with a stroke of L;

[0052] Step 106 controls the optical assembly 203 to start and continue printing.

[0053] When printing larger or more complex components, the long printing time necessitates periodic resin agitation during the printing process. This agitation serves two purposes: firstly, it mixes the resin solution in different areas, improving its uniformity; secondly, it mixes resin solutions from different temperature zones, enhancing temperature uniformity. Due to the variety of resins and the complex printing environment, existing desktop UV curing printers typically do not have pre-set resin agitation intervals. This leaves the user to determine whether resin agitation is necessary, and the uniformity of resin uniformity and temperature directly impacts print quality. Consequently, the quality of components printed by current desktop UV curing printers is largely dependent on the user's experience. While frequent resin agitation can overcome these issues, it significantly reduces printing efficiency.

[0054] This invention introduces a control parameter K or K' through technical improvements, enabling the printer to perform an automatic resin mixing action every K or K' time interval.

[0055] This invention provides an example of an interval time K and K', which is a preset stirring interval time. Using fixed values ​​consumes fewer processor resources, but its adaptability is relatively poor, making it suitable for batch printing.

[0056] The present invention provides an exemplary method for obtaining the aforementioned interval times K and K' through the following steps:

[0057] Step 201: Obtain resin type A, resin input amount B, current ambient temperature T, and current ambient humidity H;

[0058] Step 202: Based on resin type A and resin input amount B, obtain the stirring interval time K0 corresponding to standard temperature T0 and standard ambient humidity H0 from the database.

[0059] Step 203 calculates the current temperature difference TC = T - T0 and the ambient humidity difference HC = H - H0, and obtains the stirring time interval adjustment parameter D based on the following formula:

[0060]

[0061] In the formula, e is the natural constant, W is the temperature adjustment coefficient, and Q is the humidity adjustment coefficient; the temperature adjustment coefficient W and the humidity adjustment coefficient Q are obtained through preliminary experiments according to different resin types.

[0062] Step 204 determines the stirring interval K under the current ambient temperature T and current ambient humidity H by calculating K = D * K0, and performs resin stirring once every K time interval.

[0063] When printing starts in step 205, steps 101 to 104 are performed once. From the start of printing to the end of printing, the current ambient temperature T and the current ambient humidity H are obtained once at each preset time interval, and steps 103 to 104 are repeated once. The newly obtained stirring interval K` is used as the interval for the next stirring process.

[0064] This method introduces several key factors affecting resin curing speed and temperature distribution, including resin type, resin addition amount, ambient temperature, and ambient humidity, and constructs a unique stirring interval analysis method. This method allows for the determination of a reasonable stirring frequency interval during the printing process, enabling automatic stirring of the resin liquid. This ensures printing efficiency while maintaining the necessary uniformity of the resin liquid, significantly improving the yield of printed components.

[0065] Based on such Figure 1 The desktop UV-curing printer shown, in addition to the dual-light monitoring camera 3, provides an exemplary method for acquiring infrared image data of the printing resin and then performing supplementary stirring, the supplementary stirring process including the following steps:

[0066] Step 301 converts the infrared image data into a spatial infrared radiation distribution map;

[0067] Step 302-A: Based on the spatial infrared radiation distribution map, determine the spatial temperature distribution of each region. If the difference between the highest and lowest temperatures in the resin region exceeds the preset first temperature difference threshold of the resin, perform a resin stirring process and reset the interval time for the next resin stirring process based on the stirring interval time K.

[0068] Step 302-B: Convert the spatial infrared radiation distribution map into a spatial temperature grid distribution map according to the preset grid lines. If the difference between the highest and lowest temperatures in adjacent preset number of grids in the resin region exceeds the preset second temperature difference threshold of the resin, a resin stirring process is performed, and the interval time for the next resin stirring process is reset based on the stirring process interval time K.

[0069] You may choose to perform one of steps 302-A and 302-B above, or perform them simultaneously.

[0070] Resin temperature is a crucial factor affecting the yield rate of printed components. Current technology typically uses temperature sensors to detect the temperature of fixed points in the resin solution to determine if the temperature meets requirements and whether heating treatment is necessary. However, resin generally has poor heat transfer capabilities, and fixed-point temperature measurement makes it difficult to accurately obtain the overall temperature of the resin solution. This can easily lead to problems such as untimely or overheating, thus affecting the print yield rate.

[0071] This invention uses an infrared regional temperature measurement device to measure the temperature of the resin liquid area, thereby obtaining the overall temperature distribution of the resin liquid area. Based on the overall temperature distribution of the resin liquid area, it determines whether to start the stirring action to equalize the resin liquid temperature, which can effectively maintain the uniformity of the resin liquid temperature and avoid excessive regional temperature differences in the resin liquid.

[0072] This invention provides an exemplary method for heating control analysis after acquiring infrared image data of printing resin, wherein the heating control analysis includes the following steps:

[0073] Step 401 converts the infrared image data into a spatial infrared radiation distribution map;

[0074] Step 402: Based on the spatial infrared radiation distribution map, determine the spatial temperature distribution in each region. When the average temperature of the resin region is lower than the preset temperature threshold, control the heating component to start.

[0075] Step 403 repeats step 402 until the average temperature of the resin area is higher than the preset temperature threshold after heating. Then, the heating component is turned off, and the interval time for the next resin stirring process is reset based on the stirring interval time K. The preset temperature threshold after heating is greater than or equal to the preset temperature threshold.

[0076] This invention determines whether the resin liquid needs to be heated based on the temperature distribution in the resin liquid region. Compared with existing fixed-point temperature measurement technology, the regional temperature measurement method of this invention effectively reduces the problems of untimely or excessive heating that exist in fixed-point temperature measurement technology.

[0077] In step 402 of this invention, the heating component is started while the resin is stirred; in step 403, the heating component is turned off while the stirring mechanism returns to its initial position.

[0078] Stirring the resin solution while heating it can make the heating process more uniform.

[0079] The present invention provides an exemplary method for determining a resin region, comprising: using the area covered by the molding substrate 204 in the resin tank 202 as a first exclusion area, wherein the portion of the area in the resin tank 202 excluding the first exclusion area is the resin region.

[0080] When the dual-light monitoring camera 3 performs regional infrared monitoring of the resin tank 202, it also simultaneously detects the area of ​​the resin tank 202 obscured by the molding substrate 204. Since the temperature of the molding substrate 204 is generally significantly different from the resin temperature, including the temperature of the molding substrate 204 in the judgment process would significantly increase the possibility of misjudgment. Therefore, it is necessary to exclude the area covered by the molding substrate 204 within the resin tank 202 to avoid misjudging the resin temperature.

[0081] The present invention provides an exemplary method for determining a resin region, which further includes, based on the above method for determining a resin region, the first exclusion region being proportionally reduced to the opposite side of the dual-light monitoring camera 3 based on the angle of the dual-light monitoring camera 3 toward the resin as the height of the displacement portion of the vertical displacement mechanism 206 increases.

[0082] Since the dual-light monitoring camera 3 is generally angled towards the resin tank 202, the area of ​​the molding substrate 204 that obstructs the resin tank 202 in the image of the dual-light monitoring camera 3 will be proportionally reduced in the opposite direction of the dual-light monitoring camera 3 as the molding substrate 204 rises. Therefore, the present invention adaptively adjusts the first exclusion area to incorporate the resin liquid temperature into the judgment as much as possible, thereby improving the judgment accuracy.

[0083] The present invention provides an exemplary method for determining a resin region, which further includes, based on the above method for determining a resin region, taking the area of ​​the printing surface of the optical component 203 located in the resin tank 202 as a second exclusion area. At this time, the exclusion area is the sum of the first exclusion area and the second exclusion area, and the part of the area in the resin tank 202 excluding the exclusion area is the resin region.

[0084] When the molding substrate 204 rises to a certain height, the first exclusion area will shrink to a size smaller than the printing surface of the optical component 203. When the resin liquid is cured under the action of the optical component 203, its temperature will be significantly different from the rest of the uncured resin. Therefore, the present invention uses the area of ​​the printing surface of the optical component 203 located in the resin tank 202 as the second exclusion area, and adds the first exclusion area and the second exclusion area together to avoid misjudgment caused by reasonable temperature differences during the curing process.

[0085] This invention provides an exemplary method for setting the target height in step 102 as a preset height value. This method uses a fixed height, which requires less computation and, by setting a higher preset height, ensures that the scraper will not touch or damage the printed semi-finished product during its stirring motion.

[0086] The present invention provides an exemplary target height as described in step 102, which is obtained by the following method: target height U = U0 + Ud + Uk, where U0 is the height of the stirring mechanism, Ud is the height of the vertical displacement mechanism during the printing process, and Uk is an adjustment value greater than or equal to 0.

[0087] This method can adjust the target height U in real time through simple calculations, leaving sufficient gaps relative to the scraper. This ensures that the scraper will not touch or damage the printed semi-finished product during its stirring motion, while reducing unnecessary upward and downward strokes, thereby improving printing efficiency.

[0088] The present invention provides an exemplary resin stirring control system for a desktop UV-curable printer, the control system including a processor that executes the steps in the above-described resin stirring method for a desktop UV-curable printer.

[0089] The present invention provides an exemplary storage medium that can be read by a computer to perform the steps in the above-described method for stirring resin in a desktop UV-curable printer.

[0090] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A method of stirring a resin for a desktop level light-curing printer, characterized by, The resin stirring treatment is performed every interval K or K` time period, and the stirring treatment comprises the following steps: Step 101: controlling the optical assembly to pause after completing printing of the current layer; Step 102: controlling the vertical displacement mechanism to move the forming substrate upward along the vertical direction to a target height, and recording the upward stroke L; Step 103: controlling the stirring mechanism to start and / or perform a preset number of stirring movements in the resin tank; Step 104: controlling the stirring mechanism to stop and / or return to the initial position; Step 105: controlling the vertical displacement mechanism to move the forming substrate downward along the vertical direction by a stroke L; Step 106: controlling the optical assembly to start and continue printing; The interval time K and K` is a preset stirring interval time; Or, The interval time K and K` is obtained by the following steps: Step 201: obtaining the resin type A, resin input amount B, current environmental temperature T, and current environmental humidity H; Step 202: obtaining the stirring treatment interval time K0 corresponding to the standard temperature T0 and standard environmental humidity H0 from the database based on the resin type A and resin input amount B; Step 203: calculating the current temperature difference TC=T-T0 and environmental humidity difference HC=H-H0, and obtaining the stirring time interval adjustment parameter D based on the following formula: ； In the formula, e is a natural constant, W is a temperature adjustment coefficient, and Q is a humidity adjustment coefficient; the temperature adjustment coefficient W and the humidity adjustment coefficient Q are obtained by pre-experiment according to different resin types; Step 204: determining the stirring treatment interval time K under the current environmental temperature T and current environmental humidity H by calculating K=D*K0, and performing resin stirring treatment every interval K time period; Step 205: performing steps 101 to 104 at the start of printing, and obtaining the current environmental temperature T and current environmental humidity H every preset time period from the start of printing to the end of printing, and repeating steps 103 to 104 to obtain the stirring treatment interval time K` as the interval time for the next stirring treatment.

2. The method of claim 1, wherein the method further comprises: After obtaining the infrared image data of the printing resin, a supplementary stirring treatment is performed, and the supplementary stirring treatment comprises the following steps: Step 301: converting the infrared image data into a spatial infrared radiation distribution map; Step 302-A: determining the spatial temperature distribution of each region based on the spatial infrared radiation distribution map, and if the highest temperature and the lowest temperature difference of the resin region exceeds a preset first resin temperature difference threshold, performing a resin stirring treatment, and resetting the interval time for the next resin stirring treatment based on the stirring treatment interval time K; Step 302-B: converting the spatial infrared radiation distribution map into a spatial temperature grid distribution map according to a preset grid line, and if the highest temperature and the lowest temperature difference of the resin region in a preset number of adjacent grids exceeds a preset second resin temperature difference threshold, performing a resin stirring treatment, and resetting the interval time for the next resin stirring treatment based on the stirring treatment interval time K; The steps 302-A and 302-B are performed alternatively or simultaneously.

3. The method of claim 1, wherein the method further comprises: After acquiring the infrared image data of the printing resin, heating control analysis is performed, the heating control analysis comprising the following steps: Step 401: converting the infrared image data into a spatial infrared radiation distribution map; Step 402: determining the spatial temperature distribution of each region based on the spatial infrared radiation distribution map, and when the average temperature of the resin region is lower than the preset temperature threshold, starting the heating assembly; Step 403: repeating step 402 until the average temperature of the resin region is higher than the preset post-heating temperature threshold, then turning off the heating assembly, and resetting the interval time for the next resin stirring treatment based on the stirring treatment interval time K; the preset post-heating temperature threshold is greater than or equal to the preset temperature threshold.

4. The method of claim 3, wherein the method further comprises: When step 402 is performed, the heating assembly is started while the resin stirring treatment is performed; When step 403 is performed, the stirring mechanism is controlled to return to the initial position while the heating assembly is turned off.

5. The tabletop photopolymerization printer resin stirring method of any one of claims 2 or 3, wherein, The method for determining the resin region comprises: covering the area of the forming substrate in the resin tank as a first excluded area, at this time, the area of the resin tank inside the tank excluding the part of the first excluded area is the resin region.

6. The method of claim 5, wherein the method further comprises: The first excluded area is reduced in proportion to the opposite side of the infrared image acquisition component according to the increase of the height of the displacement part of the vertical displacement mechanism, based on the angle of the infrared image acquisition component towards the resin.

7. The method of claim 5, wherein the method further comprises: The area of the printing surface of the optical assembly located in the resin tank is taken as a second excluded area, at this time, the excluded area is the cumulative area of the first excluded area and the second excluded area, and the part of the area of the resin tank inside the tank excluding the excluded area is the resin region.

8. The method of claim 1, wherein the method further comprises: The target height in step 102 is: a preset height value; or, the target height U=U0+Ud+Uk, wherein U0 is the height of the stirring mechanism, Ud is the height of the vertical displacement mechanism during the printing process, and Uk is an adjustment value greater than or equal to 0.

9. A desktop level light-cured printer resin agitation control system, characterized by, The storage medium can be read by a computer to implement the steps of the resin stirring method of the desktop light-curing printer according to any one of claims 1-8.

10. A storage medium characterized by The storage medium can be read by a computer to implement the steps of the resin stirring method of the desktop light-curing printer according to any one of claims 1-8.

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