nsWare Custom IDF Export
This program allows export of more than one placebound per footprint for import into PTC ProEngineer or FreeCAD.
Using FreeCAD a STEP model of the board file can also be exported. Program works on all tiers of OrCAD and Allegro PCB Editor.
FreeCAD can be downloaded for free at: http://sourceforge.net/projects/free-cad/
FreeCAD IDF import plugin can be downloaded at: http://nordcad.dk/download/Teknik/download/FreeCAD_IDF_plugin.zip
Once package is downloaded place the files idf.py and init.py inside FreeCAD0.12\MOD\IDF folder