Self-layer-thickness-adaptive slicing method and printing system

Abstract

The invention provides a self-layer-thickness-adaptive slicing method and a printing system. The self-layer-thickness-adaptive slicing method comprises the steps that a 3D model of a to-be-printed object is acquired; the 3D model is dispersed into d1, d2 to dn layers of models with an identical layer thickness; the midperpendicular of the 3D model is acquired; the 3D model is divided with the sameangle by taking the midperpendicular as the center, so that a plurality of vertical slices are obtained; the vertical slices are dispersed into a plurality of layers with the same layer thickness h,so that a plurality of comparison points on the outlines of the vertical slices are acquired; every two adjacent comparison points on each vertical slice are connected to form a slash, and an includedangle a between each slash and the horizontal direction is calculated; and the angles a are compared with a threshold S, and whether two adjacent layers are combined for slicing or not is determined.By adopting the self-layer-thickness-adaptive slicing method, self-adaptive slicing is performed on the 3D model of the to-be-printed object with different layer thicknesses; and the printing systemis provided for directly printing the self-layer-thickness-adaptive layer models; and printing speed is accelerated on the premise of not affecting printing precision and printing object quality.

Description

technical field [0001] The invention relates to an adaptive layer thickness slicing method and a printing system. Background technique [0002] 3D photo-curing printing technology is a rapid prototyping technology that uses laser light to irradiate photosensitive resin materials to quickly solidify liquid resin into product shapes; it is based on digital models and uses liquid photosensitive resin as material to print layer by layer. Construct objects. [0003] In 3D photo-curing printing, before starting to "print" the object, it is necessary to obtain the three-dimensional model data of the object to be printed, and then slice the three-dimensional model to obtain the layer model of each layer that needs to be printed. Each layer of the model generates raster scan lines of the UV laser scanning path by setting the printing parameters. Then, the ultraviolet laser will scan the liquid resin one by one along the raster scanning lines of each layer model, and the scanned res...

AI Technical Summary

Problems solved by technology

[0005] However, the current 3D printing is limited by the slicing and printing system. The slicing can only be sliced ​​according to the same layer thickness, and when the printing system prints, it can only print the same layer thickness according to the same printing parameters, which makes the printing speed slow. Difficulty meeting production efficiency requirements

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