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Reference data is not required for all workflows, but it will make analyzing the scan data much easier. Reference data takes the form of CAD, mesh, or constructed geometry. CAD is the most common type of reference geometry and will be the focus of this video.

The PMI Import Wizard can save time if the GD&T has already been defined in another CAD package. The following file formats are compatible with this tool:

CAD Application File Extension Version Supported Comments
CATIA v5 .catpart R8-R27 (v5-v62017) Unsupported assembly file and non-ACII character in the file name 
CATIA v6 .catpart v62017x Unsupported assembly file
Creo (Pro/E) .prt, .prt.* Pro/W 16 - Creo 4.0 Unsupported assembly file
Siemens NX .prt 11-NX11 Unsupported assembly file
SOLIDWORKS .sldprt 98-2017 Unsupported assembly file

Constructed geometry can be imported with the File > Import ASCII Geometry command.