3D four-axis printer and printing method

Abstract

The invention discloses a 3D four-axis printer and a printing method. A rotating shaft is additionally arranged on the basis of an existing universal FDM type 3D printer structure; the rotating shaft is located below a printing platform and fixedly connected with the printing platform; the rotating shaft rotates to drive the printing platform to rotate at the same time, so that the printing platform can independently rotate while originally moving in the Y-axis direction; the rotating shaft is connected with the stepping motor through a coupler; and the stepping motor is fixed to the Y axis of the printer. A slicing method comprises the steps that the wall thickness part of a product is divided into an inner wall and an outer wall, and the inner wall is layered in the height direction (the Z-axis direction of the printer) according to the normal placement position of the product; then a three-dimensional model of the product is rotated by a certain angle, the size of the rotation angle is determined according to the shape of the product, and then the outer wall is sliced in the height direction (the Z-axis direction of a printer) according to the position of the rotated product; and respective printing programs are generated after slicing.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a new 3D printing process, a slicing method and a mechanical structure to ensure the process is implemented. Background technique [0002] The movement mode of the traditional FDM 3D printer is a three-axis movement, that is, the reciprocating movement of the printing nozzle along the X-axis and the Z-axis direction, and the reciprocating movement of the printing platform along the Y-axis direction. [0003] The process of 3D printing mainly includes two parts. First, software is used to slice the digital 3D model of the printed part, and a printing program is generated, and the 3D printer prints the physical product according to the generated printing program. The traditional slicing method is to use a unidirectional slicing mode, that is, divide the 3D model of the printed product into a certain number of layers along the height direction (the positive direction of the prin...

AI Technical Summary

Problems solved by technology

Its shortcomings exist in two aspects. One is that the overall strength of the printed product is poor due to the weak adhesion between layers, which affects the actual use of 3D printed products; Type products need a lot of supports when printing, which not only prolongs the printing time, but also reduces the printing efficiency. At the same time, due to the existence of supports, it not only wastes materials, but also affects the surface roughness of parts after the supports are removed.

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