Computer Processing of Machine Drawings

Abstract

This report presents a feature-based approach for the computer processing of machine drawings, which can be used to the machining process planning. In the stage of solid object generation, all loops in a three-view drawing are divided into primitive loops and every primitive solid is generated from three primitive loops, each of which is selected separately from every view drawing. The collection of these primitive solids form a solid object corresponding to the input drawing. Considering the difference between two collections of primitive solids for the original drawing and for the base stock drawing, a machining process can be planned.