Hi Matthew.w,
Have you tried the custom NC tool available in CAMduct 2016?
http://help.autodesk.com/view/FABRICATION/2016/ENU/?guid=GUID-37E9B10C-E790-430D-B8D0-3310A0B44C82
Brett Stacks
Product Manager, MEP Fabrication
Autodesk, Inc.
Brett Stacks
Product Manager, MEP Fabrication
Autodesk, Inc.