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STEP-file is a widely used [1] data exchange form of STEP. ISO 10303 can represent 3D objects in computer-aided design (CAD) and related information. Due to its ASCII structure, a STEP-file is easy to read, with typically one instance per line. The format of a STEP-file is defined in ISO 10303-21 Clear Text Encoding of the Exchange Structure. [2]
STEP - also known as ISO 10303-21 - has both advantages and disadvantages over IDF. If both MCAD and ECAD software support STEP, both programs can interchange more detailed models (at the cost of increased file size). Step models that are rendered correctly in the ECAD software can cause problems in the MCAD [citation needed].
The basis for STEP was the Product Data Exchange Specification (PDES), which was initiated during the mid-1980's and was submitted to ISO in 1988. [4] [5] The Product Data Exchange Specification (PDES) was a data definition effort intended to improve interoperability between manufacturing companies, and thereby improve productivity.
VariCAD allows editing of DWG files without conversion using the Open Design Alliance DWGdirect libraries. VariCAD also supports the ISO industrial product data exchange format STEP/STP. A list of notable supported file formats is listed in the Comparison of CAD software article. VariCAD is available for both Windows and for some time on the ...
STEP files are used to describe the complete 3D geometry of an object in a way that is independent of any specific CAD (Computer-Aided Design) system, making them highly interoperable across all CAD software. [8] Unlike, specialized 3D printing formats, STEP files are used more broadly in engineering and manufacturing.
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They contain a test plan for postprocessors (exporting STEP data) and preprocessors (importing STEP data). The structure of an ATS is defined in part 34. The original plan of STEP was to have for every AP 2xx a corresponding ATS 3xx, but only a few were finally realized till today.
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