From orthographic drawings to editable models of simple solid using “Reconstruction-Recomposition” coupled with feature recognition

Abstract

Editable and convenient geometric models are used for solid representation in engineering environment. As the industry has evolved, CAD systems changed to accommodate the need for a faster pacing design timing. Models became refined and exchangeable so that any change can be seamlessly propagated through the model and connected assemblies. Despite the fact that most of the design and development takes place on three-dimensional models, todays industries still store and rely on legacy drawings. For the last 30 years’ multiple solution methods have been formulated for reconstruction of 3D models from orthographic projections. However, these models do not carry design intent making them harder to reintroduce them efficiently in the design workflow. This paper outlines in detail a method for “reconstruction-recomposition”, reconstructing solid as individual features and composing them within the same solid model. The method is tested on case studies evaluating challenges of scalability and application to industrial cases.