High-precision, high-reliability and easy-to-use consumer-grade 3D (Three Dimensional) printing machine

Abstract

The invention discloses a high-precision, high-reliability and easy-to-use consumer-grade 3D (Three Dimensional) printing machine and mainly relates to the technical field of 3D printing. The high-precision, high-reliability and easy-to-use consumer-grade 3D printing machine comprises a base, a Z-axis movement mechanism, an X-axis movement mechanism, a Y-axis movement mechanism and an extruding machine, wherein a gantry type framework is vertically arranged at the top of the base; a wire feeding frame is arranged at the top of the gantry type framework. The high-precision, high-reliability andeasy-to-use consumer-grade 3D printing machine disclosed by the invention has the beneficial effects of high precision, high reliability and easiness for utilization; the extruding machine can be prevented from jumping in a movement process; consumable items are convenient to mount and the leveling is accurate; a printing platform is firmly fixed.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a high-precision, high-reliability and easy-to-use consumer-grade 3D printer. Background technique [0002] 3D printer is a rapid prototyping machine, which is a technology based on digital model files, using bondable materials such as powdered metal or plastic, to construct objects by layer-by-layer printing. Existing 3D printers mainly Divided into fused deposition modeling (PDM), selective laser sintering (SLS), stereolithography (SLA) and digital light processing (DLP). At present, the existing PDM-based 3D printers often have the following deficiencies during use: [0003] 1. D-type pulleys or O-type pulleys are often used as transmission parts to slide on V-groove aluminum profiles. Since the rubber shells of D-type pulleys and O-type pulleys are made of injection molding, the material is POM, and the injection molding stability is poor. The appearance of elliptical p...

AI Technical Summary

Problems solved by technology

[0003] 1. D-type pulleys or O-type pulleys are often used as transmission parts to slide on V-groove aluminum profiles. Since the rubber shells of D-type pulleys and O-type pulleys are made of injection molding, the material is POM, and the injection molding stability is poor. The appearance of elliptical pulleys causes jumps during the movement of the pulleys, which in turn drives the extruder to jump, which affects the printing accuracy;

[0004] 2. In terms of the structure of loading and unloading consumables, the existing methods use MK8 and other structures. Due to the poor orientation of this structure, it is difficult for users to align the holes and penetrate the consumables, which increases the time required for installing consumables and greatly Reduced user experience;

[0005] 3. Most of the automatic leveling uses steering gear or proximity switches. The steering gear will inevitably have errors during the long-term rotation process, which will affect the leveling accuracy.

In addition, most people in the process of designing the structure of the proximity switch often place the proximity switch far away from the printing nozzle, so that the point where the proximity switch is aligned is not the point where the nozzle is aligned, resulting in inaccurate leveling;

[0006] 4. In terms of fixing the printing platform, most of them use end-of-page clips or other stationery clips as the fixed printing platform. Since this kind of clip is large in size and occupies a lot of space, the most important thing is that the clip will inevitably come off during use, causing the platform to be damaged. Displacement, which affects the quality of the printed model;

[0007] 5. Most of the Z-axis motion mechanisms adopt the gantry-type I3 ​​structure. The left and right sides of the Z-axis are composed of two motors, or one motor. The printed upper surface of the model is uneven, whichever motor is lower will tilt towards which motor;

[0008] 6. On the fixed timing belt, most of them are clamped with cable ties, or fixed with metal or plastic to press the tooth shape. Using cable ties will cause the cable ties to age easily and break, and it is inconvenient to tighten. The cost of metal clamping is relatively high. If you use plastic to fix it, the plastic will be deformed, which will affect the accuracy of the overall transmission.

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