A Model Decomposition and Arrangement Method for 3D Printing

Abstract

Proposed is a 3D printing-oriented model decomposition and arrangement method, comprising: giving a model S and a printing space PV; calculating an initial pyramid attribute block decomposition of the model S, and performing voxelization on these pyramid attribute blocks to generate a first initial intermediate solution isolu0; initializing an intermediate solution set ISolu ＝ {isolu0}; initializing an optimal complete solution P*; with regard to each intermediate solution isolii in the intermediate solution set ISolu, calculating a series of candidate intermediate solutions generated by the intermediate solution, and solving an optimal solution of decomposition and arrangement of the model S; and performing local optimization on a three-dimensional mesh of a plurality of extracted blocks, and by means of the translation of each block in the negative direction of the Z axis, arranging these blocks to be more compact, thereby obtaining the optimal decomposition and arrangement regarding the model S. A model is decomposed into fewer blocks so as to be effectively arranged into a printing space, so that the printing process is effectively carried out.

Description

technical field [0001] The invention relates to a method for optimizing the decomposition and arrangement of 3D printing-oriented models, in particular to an optimization method for model segmentation and arrangement based on model approximate pyramid decomposition and directional search. Background technique [0002] 3D printing is a kind of rapid prototyping technology. It is a technology based on digital model files and using bondable materials such as powdered metal or plastic to construct objects by layer-by-layer printing. [0003] In recent years, 3D printing has been mentioned more and more, and the ability to print digital model files into physical objects has made it widely used in many industries. From the perspective of technical realization, 3D printing usually superimposes printing materials "layer by layer", thereby turning digital blueprints into real objects. And such a 3D printing process is limited to a printing platform with a certain space. Therefore, ...

AI Technical Summary

Problems solved by technology

The problem with this method is that it first decomposes the model into some fixed blocks, and then uses these blocks to arrange, resulting in a greatly reduced search space, which greatly reduces the possibility of the algorithm being able to find the optimal solution

Images