| 摘要 |
PROBLEM TO BE SOLVED: To provide a product designing device (CAD/CAM) by computer support capable of preparing a fillet prior to draft preparation for dies cutting, and continuing the design of a product while confirming or grasping the function of the product in a state that the fillet is added. SOLUTION: Basic elements constituting a product model are prepared (S10), and a fillet or the like is prepared for the prepared basic elements (S12). Then, a Boolean arithmetic operation is performed (S14), and the fillet or the like is prepared again for the shape obtained as the result of the arithmetic operation (S16), and a draft is prepared (S18).
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