关键词: 自适应分层, 直接分层, 快速成型

Abstract: Most adaptive slicing approaches use a maximum allowable cusp height for the entire part. In practice, however, some important faces of a part are required to be smooth while other unimportant faces can be rough. With non-uniform cusp height specifications, the high adaptive slicing efficiency can be gained. A STEP-based approach of adaptive slicing with non-uniform cusp heights for rapid prototyping is presented. Geometry model of a part is transferred from a CAD system to our slicing software by the STEP standard format. After the building direction of a part is selected, the user is prompted to specify different allowable cusp heights for different surfaces of the part. Then the CAD model is sliced adaptively and the sliced model is exported by SLC format. In the end, an instance is demonstrated and the results are given.

Key words: adaptive slicing, direct slicing, rapid prototyping