Light curing 3D printer slicing method based on Delta robot arm, printing method and printer using same

Abstract

The invention provides a light curing 3D printer slicing method based on a Delta robot arm. The light curing 3D printer slicing method includes the following steps of calculating the height of a three-dimensional model, extracting the outer contour of the three-dimensional model, and obtaining the number of slice layers and corresponding slice thicknesses according to the height data and the outercontour curve shapes; and obtaining the slice shape of each layer according to the number of slice layers and the slice thicknesses. A printing method is further provided, and the printing method includes the step of implementing the slicing method. A printer is also provided and uses the printing method. The light curing 3D printer slicing method, the printing method and the printer have the beneficial effects that adaptive layering is adopted in selection of the layering thicknesses, that is, the layering thickness is changed according to the surface shape of the object contour in the z-axis direction, and the requirement for the surface accuracy of the object is met. Compared with a fixed-thickness slicing method, the higher processing accuracy can be obtained.

Description

technical field [0001] The invention relates to the field of 3D printing, in particular to a slicing method for a photocuring 3D printer based on a Delta mechanical arm, a printing method and a printer thereof. Background technique [0002] At present, in light-curing 3D printers, when the photosensitive material is exposed to a certain frequency of laser light, the photosensitive material will change from liquid to solid. According to this characteristic, the photosensitive material will be cured in layers from bottom to top, and finally it can be printed Create the desired 3D shape. [0003] However, the accuracy of the printed 3D model is not the same as the printer's maximum slice thickness Z max and minimum slice thickness Z min Related; when the Z value of the selected slice thickness is too large, the printing efficiency increases, but the accuracy of 3D modeling decreases; on the contrary, when the selected slice thickness Z value is too small, the printing efficie...

AI Technical Summary

Problems solved by technology

[0003] However, the accuracy of the printed 3D model is not the same as the printer's maximum slice thickness Z max and minimum slice thickness Z min Related; when the Z value of the selected slice thickness is too large, the printing efficiency increases, but the accuracy of 3D modeling decreases; on the contrary, when the selected slice thickness Z value is too small, the printing efficiency decreases, but the 3D modeling accuracy Increased accuracy

In addition, the existing slicing method of selecting a fixed slice thickness has obvious deficiencies in the printing of objects with variable curvature surfaces and complex surfaces.

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