Hi Chris,
If I guess right, you want to program CMM using CAD data. We are using CADKEY 97/98 to postout iges and import it into PC-DMIS. It's a great and fun to program offline. I do know that PC-DMIS can postout code for tutor but I don't know how good it is. I use PC-DMIS to run CMM so it is compatible 100% between offline and online. If you need more information, check out web site www.brownandsharpe.com
Good Luck
Long