I am using 18, 19, and 20; (downloaded 21 yesterday). I've all but given up on DXFs all together. I have one more test pending using the environment variable shown above; I found it on anther thread, thank you though. If it fails I will find a way to automate data conversions from Iges to DXF...
I have been struggling to get good, usable 2D flat pattern data out of Catia for 2D NC cutting. We use Sigma Nest to optimize our material usage and programming for the Water Jet and we have always sent DXF files to it regardless of the originating CAD system. The DXF files created by Catia are...