Method for rapidly analyzing clearability of supporting structure in any direction

Abstract

The invention discloses a method for rapidly analyzing the clearability of a supporting structure in any direction. The method comprises the following steps of: 1, performing voxelization on a three-dimensional model for quickly judging the accessibility of a separation point; 2, quickly generating a voxel path II approaching a straight line segment based on a three-dimensional Bresenham algorithm; and 3, parallelly and efficiently detecting the accessibility of all separation points of the three-dimensional model. According to the method, the problems that the cleaning direction of the supporting structure in a 3D printing product is limited and time is consumed are solved, and the supporting structure is supported to rapidly analyze the cleanability in any direction and optimize printing direction calculation. According to the method, the Bresenham algorithm is expanded to the three-dimensional space, the voxel path approaching the straight line segment in any direction can be generated, the three-dimensional Bresenham algorithm is an integer traversal algorithm, the judgment formula is refined, the calculated amount is small, no accumulative error exists, and the searching efficiency of the voxel path in the first step is improved. Therefore, the clearability analysis of the supporting structure at any angle can be quickly supported.

Description

technical field

[0001] The invention relates to the field of 3D printing, in particular, it designs a rapid analysis method for the detachability of a support structure in any direction. Background technique

[0002] 3D printing has attracted extensive attention from industry and academia due to its unique advantages such as supporting free design, personalized customization, and energy saving. When manufacturing complex geometric models, 3D printing often needs to add support structures to prevent local collapse and curling of the printing results. At the same time, in order to ensure that the product can be effectively manufactured, the 3D printing result usually needs to remove the support structure. Considering that the support structure is usually difficult to dissolve directly and requires manual removal, in order to avoid the failure of the printed result because the support structure cannot be removed, which affects the iterative design cycle of the product and wast...

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