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_id	1c27
authors	Xi, F. and Shu, B.
year	1999
title	CAD-based path planning for 3-D line laser scanning
source	Computer-Aided Design, Vol. 31 (7) (1999) pp. 473-479
summary	The problem of path planning for 3-D line laser scanning is addressed in this article. The path under study is for a line, as opposed to a point in conventional CNC and CMMtoolpath planning. While the objective of the latter case is to drive a point along a curve, that of the former case is to drive a line across a surface. To solve this problem, a pathplanning method is developed. First, a slicing approach is put forward to divide a part CAD model into a number of sections, since the laser scanning line is limited by thescanning width and a single scanning pass cannot cover the whole surface. Second, for each section, a scanning pass is generated to cover the section surface. To ensure amaximum coverage for each section, the surface profile is determined, and the top of the scanning window is set along the upper boundary of the surface profile. Third,combination of scanning all the sections forms a complete scan of a surface. It is shown that with the proposed method a 3-D line laser scanning process can be effectivelyautomated.
keywords	3-D Line Laser Scanning, Path Planning Method, Tool Path Planning
series	journal paper
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last changed	2003/05/15 21:33

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