![]() ![]() Algorithms regarding the orientation of CAD models are beyond the scope of this chapter. The orientation of the STL model is usually user defined or obtained with respect to the optimal build time, the surface quality, support structures required, or other criteria. Two stages are included, namely, preprocessing stage regarding the optimum orientation of the part, and slicing stage generating slices from STL model. ![]() The detailed slicing algorithm is presented as follows.įigure 3 shows the flowchart of the tolerant slicing algorithm. An efficient and fault-tolerant slicing algorithm was proposed by Choi et al. With the increasing size of the STL file, a major challenge of slicing algorithms is the computing efficiency. ![]() Based on the surface geometry of the model, this approach adjusts automatically the layer thickness to improve the accuracy or to improve the build time. Adaptive slicing approach slices a model with a variable thickness. Also, the deposition rate or productivity is highly relevant to the sliced layer thickness. The smaller the layer thickness, the higher the accuracy will be obtained. The accuracy of the additively manufactured parts could be controlled by altering the layer thickness. Uniform slicing method slices CAD model with a constant thickness. (a) STL model with slicing layers in unidirection (b) Resulting layer boundary polygons. ![]()
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