Slicing treatment method for surface model surface ink jet printing

Abstract

The invention discloses a slicing treatment method for surface model surface ink jet printing. The method comprises the following steps: a surface model to be printed is separated from a computer, and is preserved as a STL format for data processing to remove redundant data; a corresponding relation between a peak and a facet is built; a layer-by-layer unfolding traversal mode of the peak of the STL model and a fork processing algorithm are designed; the peak and the facet are arranged by a certain sequence; the peak is traversed; the facet included under the peak is read; an angle of rotating the facet to be printed to the horizontal position and an optimal cutting line slope are calculated; a printing error is reduced; a layering tangent line and each edge of the triangular facet are intersected to obtain printing path data; and all peaks and facets are traversed to obtain a complete G code of the model to be printed. The slicing treatment method can prevent the step effect of the forming surface of the surface model and the precision problem caused by ink flowing, and can improve the surface overall connectivity and the printing precision.

Description

technical field [0001] The invention belongs to the technical field of three-dimensional printing, and specifically relates to a slicing processing method for inkjet printing on the surface of a three-dimensional curved surface model, which is used to generate a G code for controlling the printer, which not only solves the problem that the existing slicing software cannot slice the surface model, At the same time, it also avoids the step effect produced by the traditional slice layering and printing methods on the surface of the curved model, and improves the surface quality of printing. Background technique [0002] 3D printing technology is based on the computer 3D design model, through the software layered discrete and numerical control forming system, using laser beams, hot-melt nozzles, etc. to accumulate metal powder, ceramic powder, plastic, cell tissue and other special materials layer by layer Bonding, and finally overlaying and molding to create a solid product. 3...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the shortcomings of the above-mentioned existing slicing technology, the present invention provides a slicing processing method for inkjet printing on the surface of a curved surface model, which is used to generate instructions for controlling the five-axis linkage printer through slicing processing of the surface model to be printed. The problem of slicing of closed curved surface patches is avoided, and the existing inkjet printing method avoids the step effect formed on the surface of the forming surface and the accuracy problem caused by the flow of "ink". At the same time, it also greatly reduces the difficulty of printing control and improves the forming surface. Overall connectivity to improve the quality of printed items

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