A multi-nozzle 3D printer and its collaborative printing method

Abstract

The invention discloses a multi-nozzle 3D printer and a cooperative printing method thereof, including a motion mechanism and a control unit; The printing platform; the XY motion assembly is provided with N X-axis motion mechanisms that move independently of each other, N Y-axis motion mechanisms that move independently of each other, and N wire feeding mechanisms that work independently of each other; the N≥1, And N is an integer; the printing platform is shared by all nozzles; multiple X-axis motion mechanisms and multiple Y-axis motion structures are arranged in parallel along the Y-axis guide rod. In the present invention, multi-nozzles share a printing platform to carry out partition collaborative printing, and the software realizes seamless connection between partitions through reasonable path planning, while avoiding mutual interference between multi-nozzles, and improving the 3D printing efficiency of large-scale preparations.

Description

technical field [0001] The invention belongs to the technical field of 3D printing devices, and in particular relates to a 3D printer and a printing method based on the principle of melt extrusion molding (FDM) and having a plurality of spray heads working in partitions. Background technique [0002] The current 3D printing technology adopts layer-by-layer (point-by-point) printing and processing methods, which leads to the mutual kidnapping of printing speed and printing accuracy, and a phenomenon called "3D printing paradox" appears. If the accuracy is improved, the speed will inevitably decrease. On the contrary, if the speed is increased, the accuracy will inevitably decrease, and the cooperative work of multiple nozzles is an effective way to solve this problem. Existing multi-nozzle 3D printers work alternately with multi-nozzles in time-sharing to realize 3D printing of multi-material and multi-color, because there is no solution to the independent movement structure ...

AI Technical Summary

Problems solved by technology

[0002] The current 3D printing technology adopts layer-by-layer (point-by-point) printing and processing methods, resulting in the kidnapping of printing speed and printing accuracy, and a phenomenon called "3D printing paradox". If the accuracy is improved, the speed will inevitably be reduced. On the contrary, if the speed is increased, the accuracy will inevitably decrease, and the cooperative work of multiple nozzles is an effective way to solve this problem

Existing multi-nozzle 3D printers work alternately with multi-nozzles in time-sharing to realize 3D printing of multi-material and multi-color. Because there is no solution to the independent movement structure and cooperative working mechanism of multi-nozzles, multiple nozzles cannot print together at the same time, which cannot really improve work efficiency

At present, there are mainly two ways to improve the efficiency of 3D printing. One is to increase the printing speed by reducing the printing accuracy; the other is to increase the printing speed by reducing the internal filling, which leads to changes in the internal structure of the printed part and reduces its strength.

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