United3dArtists Archive

I exported an object to IGES from tS 6.6 SP2 with the last release of Conversion Pack 2.1 installed. Despite all three settings on the object info panel being set to INCH, it set the scale to units of 0.001 instead of 1.0. Mills, thousandths on an inch instead of inches.

Open the igs file with EditPad Lite or any other text editor that's NOT Windows notepad or wordpad.
Near the beginning of the file, find 2,2HMM and replace it with 8,2HIN
That fixes a file exported from trueSpace in inches if it imports into a CAD program at the wrong size.

IGES specifications http://diyhpl.us/~bryan/papers2/IGES5-3_forDownload.pdf"

FreeCAD forum thread where this got hashed out. http://forum.freecadweb.org/viewtopic.php?t=10182"

I wonder if that wrong scale setting can be patched so the export will actually match the object scale setting on the object info panel? Makes me wonder if any of the other exporters have a scale problem?

Strange thing though, changing that does NOT fix the IGES import. tS still loads the object at the incorrect size and annoyingly ignores the axes location, relocating them to the center of the imported object.

*sigh* Bugs that won't get fixed thanks to Microsoft.

It seems the COB format itself has scaling issues as I discovered years back when I tried using it to convert some COB models to XSI. I guess it like a small bug in the software or how it's translated to other model formats. One work around I tripped across was to scale only in the edit mode. Was a bit too much work to do for every model.