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Publication Citation: Data Exchange of Parametric CAD Models Using ISO 10303-108

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Author(s): Junhwan Kim; Mike Pratt; Raj G. Iyer; Ram D. Sriram;
Title: Data Exchange of Parametric CAD Models Using ISO 10303-108
Published: July 01, 2007
Abstract: Modern CAD systems generate feature-based product shape models with parameterization and constraints. Until recently, standards for CAD data exchange among different CAD systems were restricted to the exchange of pure shape information. These standards ignored the parameters, constraints, features, and other elements of ?design intent? present in the model to be transferred. This paper suggests an implementational foundation for CAD data exchange with parametric information for the preservation of design intent, based on the use of newly published parts of the International Standard ISO 10303, which is informally known as STEP ? STandard for Exchange of Product model data. A case study is presented, which employs a hypothetical STEP application protocol (AP) using Parts 55, 108 and 111 of ISO 10303. A prototype translator based on this AP has been implemented and tested. The paper reports on the experience gained in parametric data exchange.
Citation: NIST Interagency/Internal Report (NISTIR) - 7433
Keywords: constraints;Data exchange;design intent;parameterization;parametric CAD models;STEP
Research Areas: Sustainable Manufacturing, Manufacturing
PDF version: PDF Document Click here to retrieve PDF version of paper (424KB)