Controller for color 3D printer

Abstract

The invention discloses a controller for a color 3D printer. Compared with a traditional controller for a 3D printer, the controller can further be connected with 5-6 stepping motors for driving a plurality of extruder motors except that the controller is connected with a stepping motor for controlling three-axis movement of the printer, and a plurality of extruders are mixed to extrude consumables with different colors, and finally control over the color 3D printer is achieved. The controller comprises a microprocessor, a touch screen, stepping motor driving interfaces, an external communication interface, a limit switch interface, a temperature sampling circuit, a heating driving circuit, a heat dissipation driving circuit and a power management circuit.

Description

technical field [0001] The patent of the present invention relates to the field of additive manufacturing, in particular to a color 3D printer controller. Background technique [0002] 3D printing, also known as additive manufacturing, belongs to a kind of rapid prototyping technology. It is a digital model-based, through software and numerical control system, special metal materials, non-metal materials and medical biological materials, according to fused deposition (FDM) ), choose laser sintering (SLM), light curing (SLA), digital light processing (DLP) and other methods to manufacture physical objects. Compared with the traditional open mold injection molding, or the processing mode of raw material removal-cutting and assembly, it is a "bottom-up" manufacturing method through material accumulation, from scratch. This makes it possible to manufacture complex structural parts that were constrained by traditional manufacturing methods in the past. At the same time, the 3D p...

AI Technical Summary

Problems solved by technology

[0004] At present, the relatively mature technical solutions in the industry generally realize color 3D printing through monochrome printing first, and then machine coloring. However, due to the high cost of 3D inkjet equipment (the cost is more than 500,000) and the difficulty of maintenance High, these technical solutions cannot be truly marketed at present

[0005] There is a low-cost color 3D printing technology, which squeezes consumables of different colors into a special color-mixing nozzle at the same time according to a certain ratio, and realizes the mixed color registration of multiple colors in the nozzle mixing chamber, but most 3D printers on the market control The controller has only 4 stepper motor drive interfaces, which can only drive one extruder, and cannot realize the effect of extruding multiple consumables into the nozzle at the same time. Some existing 3D printer controllers support the connection of 6 motor drives, that is, 3 motion motors +3 extruder motors, but to achieve full-color toning, at least five colors of magenta+cyan+yellow+black+white are required, and the printer needs to work in mixed extrusion mode, so the existing 3D The printer controller cannot meet the demand

[0006] In view of the above defects, the present invention designs a color 3D printing controller, which has 9 stepping motor drive interfaces, and can work in the mixed extrusion mode, which can effectively solve the problem of existing 3D printer controller drive interfaces. Insufficient, need external expansion module, the program does not support mixed extrusion, inconvenient to use, etc.

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