Method for eliminating print stringing, fdm printing device, storage medium and processor

Abstract

The invention discloses a method for eliminating printing stringing, when the printer nozzle moves from the contour path P A The end position A jumps to another contour path P B At the starting position B, the following steps are performed: S1, the printer nozzle moves from point A along a specific path or within a specific area to move a wire removal path with a minimum length of D, and executes the wire drawing elimination action; S2, completes the wire drawing elimination action After that, the printer nozzle jumps from the current position to the start position B to continue printing; wherein, the specific path is the contour path P A The offset contour path E obtained after reducing the offset with parameter α A , the specific region is the contour path P A The fill path F within A . In the present invention, by setting the wire disappearing path, when the nozzle moves in the wire disappearing path, the wire drawing generated will be adhered to these paths, that is, the inside of the printing model, thereby eliminating the wire drawing phenomenon between jumps in different areas.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a method for eliminating printing stringing, an FDM printing device, a storage medium and a processor. Background technique [0002] 3D printing technology is actually a general term for a series of rapid prototyping technologies. Its basic principle is stacked manufacturing. The rapid prototyping machine forms the cross-sectional shape of the workpiece through scanning in the X-Y plane, and the layer thickness is intermittently measured at the Z coordinate. displacement, and finally form a three-dimensional workpiece. FDM fused layer deposition modeling technology is a kind of 3D printing. It heats and melts filamentous hot-melt materials. At the same time, under the control of the computer, the three-dimensional nozzle selectively coats the material on the workbench according to the cross-sectional profile information. On, a layer of section is formed after rapid cooling. ...

AI Technical Summary

Problems solved by technology

[0004] Usually, in order to solve the above problems, before the empty path, the material of the extruder will be moved in the opposite direction for a certain distance, that is, the retraction action, to reduce the residual material in the nozzle and reduce the drawing, but because the material in the nozzle is already in a fluid state The state is not solid, so the retraction action cannot play a very good effect, and there will always be a part of the material in the nozzle to cause the drawing problem

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