I have a Rhino model that has inch units. However, when I export it (using the AP203 config control design) the units change to mm. For example, the height of the attached 3dm model is 4.502". However, in the step file this is 114.35. This has been verified by loading the step file into two other apps (FreeCAD and Mecway).
Why does this happen? Can I change this behavior?
Rhino_step_export_test.3dm (121.2 KB)
Rhino_step_export_test.stp (54.9 KB)
Windows 7 Pro
IMPORTANT – Rhino 2.0 (yes, very old but still satisfactory for my needs)