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3D printing method and 3D printer based on polar coordinates for circular-section objects

A technology of 3D printers and circular sections, applied in the field of 3D printing, can solve problems such as poor printing effect and decreased filling rate, and achieve the effect of simple algorithm, high work efficiency, simple and stable structure

Inactive Publication Date: 2016-05-04
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when using this method to print circular cross-section objects, if the accuracy of the 3D printer is not high, the filling rate (that is, the distance between lines) will decrease, resulting in poor printing effect.

Method used

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  • 3D printing method and 3D printer based on polar coordinates for circular-section objects
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  • 3D printing method and 3D printer based on polar coordinates for circular-section objects

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited to the following examples.

[0022] Such as Figure 1 to Figure 3 As shown, a 3D printer for a circular cross-section object based on polar coordinates includes a base part, a printing platform part, and a printing joint part installed sequentially from bottom to top.

[0023] Such as Figure 4 , Figure 5 As shown, the base part includes a lifting motor 311, a synchronous pulley 312, a synchronous belt 313, a screw pulley 314 (with threaded holes or built-in nuts), a synchronous belt 315, a screw pulley 316, and a base plate 32. Connecting column 33, base plate motor frame 34, base plate 35, two Z guide rods 14-2 and two Z direction lifting screw rods 14-1. The lifting motor is fixed on the base plate motor frame (the base plate motor frame is fixed on the base plate through the connecting column), the screw pulley is limited ...

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PUM

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Abstract

The invention relates to a 3D printing method and a 3D printer based on polar coordinates for circular-section objects. The 3D printing method has the advantage that the algorithm is simple, and the 3D printer has the advantage that the work efficiency is high. According to the technical scheme, the 3D printer based on the polar coordinates for the circular-section objects comprises a base part, a printing platform part and a printing joint part; the base part comprises a base, a lifting motor, two screw rod belt wheels, two or more Z-direction guide rods and two Z-direction lifting screw rods; the printing platform part comprises a printing platform support, an XY-direction driving assembly and a printing platform; the printing joint part comprises a top plate, a printing head, a large arm plate and a small arm plate. The 3D printing method comprises the steps of 1, establishing a polar coordinate system; 2, changing the position of the point P and printing full circles with the radius being rho; 3, changing the rotation angle phi of the small arm plate relative to the large arm plate, enabling the module rho of the vector OP to be uniformly changed from 0 to R and finally obtaining full circular sections.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a polar coordinate-based 3D printing method for a circular cross-section object and a corresponding 3D printer. Background technique [0002] Today's 3D printers use triangles as the basic unit of 3D models, because any slice can be disassembled into a combination of multiple triangles, which has the characteristics of simple structure and strong versatility. However, when using this method to print a circular cross-section object, if the 3D printer is not accurate enough, the filling rate (that is, the distance between lines) will decrease, resulting in poor printing effect. Aiming at this problem, a 3D printing method and corresponding 3D printer for circular cross-section objects based on polar coordinates are designed. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings in the above-mentioned background technology, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C67/00B33Y30/00B33Y10/00
Inventor 李洪超
Owner ZHEJIANG SCI-TECH UNIV