*IF* your model isn’t proprietary or otherwise secretive, could you save it as an HXN and upload it here? (HXN is the only non-image file that can be uploaded here).
Then we can load it into our’s and see if we can save it as a DWG - or alternatively, see if we can figure out why it can’t be saved that way.
ADD:
Christ…DAZ apparently “fixed” the uploads. I just tested with an HXN file and it wouldn’t let me upload it.
C’MON, DAZ!!! Ya think we’re gonna turn your website into a warez site with your HXN files?