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Use this form to request a free copy of STEP File Analyzer and Viewer.

Comments are not required, but please consider answering the following questions to help us focus our future efforts:

Free online 2D and 3D CAD viewer. It supports AutoCAD DWG/DXF, STEP, STP, IGES, IGS, STL, SAT (ACIS®), Parasolid (xt, xb), SolidWorks ™ (sldprt), PLT, SVG, CGM and other formats. With its help you can view your drawing or 3D model in any browser and from any device, including Android and iOS devices. ShareCAD - view files online anytime, anywhere! Free Online STEP File Viewer View and optionally share your STEP files online for free. No download or signup required. Renders and verifies file integrity of STEP and STP files made with Solidworks, AutoCAD, Fusion 360, CATIA, Solid Edge, NX, Creo, FreeCAD, TurboCAD, Rhino, and more. Best Free STEP File Viewer Software for Windows 1. GOM Inspect is a simple software which is not heavily loaded with features and is easy to run on low hardware PCs. The software can View STEP files and also lets you edit those files in the integrated user interface. This feature allows the user to make some changes to its STEP file. Professional 3D STP Viewer to import and read.stp and.step file formats. 3D STP Viewer can print and convert STP to DWG, STL, DXF, OBJ and other formats. NEW: STEP Viewer for macOS and Linux STEP - Standard for Exchange of Product model data - ISO 10303 standard which is commonly used in industry. Autodesk Viewer is a free online viewer for 2D and 3D designs including AutoCAD DWG, DXF, Revit RVT and Inventor IPT, as well as STEP, SolidWorks, CATIA and others.

• How will you be using the STEP File Analyzer and Viewer?
• Where did you hear about this software?
• What CAD software do you use?
• Which STEP APs do you use (203/209/214/242/..)?

After submitting your request you will be emailed instructions for downloading the software. Your information is not kept on computers that are accessible to the public and will not be distributed. For more information see the NIST Privacy Statement.

We would appreciate it if each user requests their own copy of STEP File Analyzer and Viewer.

Stp File Viewer Autodesk

You might also be interested in these other related projects:

• NIST MBE PMI Validation and Conformance Testing Project (free CAD models and STEP files)
• QIF PMI Report Software (Quality Information Framework)

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This software was developed at the National Institute of Standards and Technology by employees of the Federal Government in the course of their official duties. Pursuant to Title 17 Section 105 of the United States Code these files are not subject to copyright protection and are in the public domain. These files are an experimental system. NIST assumes no responsibility whatsoever for their use by other parties, and makes no guarantees, expressed or implied, about their quality, reliability, or any other characteristic.

Stp File Viewer

The STEP File Viewer supports parts and assemblies, dimensions and tolerances, sketch and supplemental geometry, and datum targets. The Analyzer generates a spreadsheet of all entity and attribute information; reports and analyzes any semantic PMI, graphical PMI, and validation properties for conformance to recommended practices; and checks for basic STEP file format errors.

STEP (ISO 10303 –STandard for Exchange of Product model data) files are also known as Part 21 files with a file extension of .stp, .step, or .p21. STEP files are used to represent part geometry and Product and Manufacturing Information (PMI) that is used for data exchange and interoperability between Computer-Aided Design (CAD), Manufacturing (CAM), Analysis (CAE), and Inspection (CMM) software. PMI consists of annotations and attributes that define product geometry and product specifications including annotations (callouts) to specify Geometric Dimensioning and Tolerancing (GD&T).

Stp File Viewer Mac

STEP File Viewer

The free STEP File Viewer supports part shape, annotations for dimensions and tolerances, sketch geometry, supplemental geometry, datum targets, and finite element models that is displayed in a web browser. Nested assemblies are supported where one STEP file contains the assembly structure with external file references to individual assembly components that contain part geometry.

Examples: Box assembly, Part with graphical dimensions and tolerances, AP242 tessellated part geometry, AP209 finite element analysis models

Spreadsheets and Reports

Stp File Viewer Program

A spreadsheet simplifies analyzing information from the STEP file at an entity and attribute level. In the spreadsheet, each entity type is a worksheet, each row is an entity instance where the columns are the entity attributes. Reports can be generated for PMI Representation, PMI Presentation, and Validation Properties based on Recommended Practices defined by the CAx Implementor Group.

Stp File Viewer Download

• STEP-File-Analyzer-PMI-Representation-sfa.xlsx - The spreadsheet was generated from an AP242 file with PMI Representation (also known as semantic PMI) reports for dimensional tolerances, geometric tolerances, and datum features as indicated on the Summary worksheet. PMI Representation includes all information necessary to represent GD&T without any graphical presentation elements. PMI Representation is computer-interpretable to facilitate automated consumption by downstream applications for manufacturing, measurement, inspection, and other processes. Results are color-coded based on one of the NIST CAD models.
• STEP-File-Analyzer-sfa.xlsx - The spreadsheet was generated from an AP203 file that contains Validation Properties and PMI Presentation (also known as graphical PMI). Validation properties are quantities related to features of a CAD model that are computed by the native CAD software used to validate the import of those quantities. PMI Presentation consists of geometric elements preserving the exact appearance of the GD&T annotations. PMI Presentation is not intended to be computer-interpretable and does not carry any representation information, although it can be linked to its corresponding PMI Representation.
• STEP-File-Analyzer-Coverage.xlsx - The spreadsheet was generated when processing multiple STEP AP242 files. The File Summary worksheet shows the distribution of STEP entities across all of the files. The Coverage Analysis worksheet shows coverage of PMI Representation concepts from the STEP file and CAx-IF Recommended Practices. Results are color-coded based on one of the NIST CAD models.

Syntax Checker

The software includes a syntax checker that checks for basic syntax errors and warnings in the STEP file related to missing or extra attributes, incompatible and unresolved entity references, select value types, illegal and unexpected characters, and other problems with attributes. Syntax checking might help you diagnose errors when importing STEP files into CAD software. STEP file errors should be fixed to ensure that the file conforms to the STEP schema and can interoperate with other software. There are other validation rules defined by STEP schemas (where, uniqueness, and global rules, inverses, derived attributes, and aggregates) that are not checked.

Testing STEP Implementations

The CAx Interoperability Forum (CAx-IF) tests software implementations of AP242 and tested AP203 and AP214 in the past. The CAE Interoperability Forum (CAE-IF) tests software implementations of AP209. The CAx-IF and CAE-IF are joint testing activities between PDES, Inc. (U.S.), prostep ivip (Germany), and AFNeT (France).

Stp File Viewer Software

To test how well your CAD system implements STEP AP242 PMI, download the NIST PMI CAD models, open one of the models, export an AP242 file with PMI, and process it with the STEP File Analyzer and Viewer. The PMI Representation Summary worksheet will indicate how well the AP242 PMI matches the expected PMI in the NIST PMI CAD model test case definitions. Differences might be due to how some PMI was modeled in the CAD system or how the PMI was exported to the STEP file.