I am having strange problems when I output an IDF file out of Allergro PCB Designer and send to our mechanical group using Solidworks. Sometimes the component height goes through, in the IDF file, and sometimes it doesn't. I assume this value is derived in the IDF translator from the PLACE_BOUND_TOP > PACKAGE_HEIGHT_MAX attribute??? Sometimes mounting holes show up in solidworks and sometimes they do not. I add a PLACE_BOUND_TOP > PACKAGE_HEIGHT_MAX shape, with a low height value. I can't find any literature on IDF in Cadence to indicate what properties the IDF export tool uses when it does the translation out of Allegro into IDF? Any ideas?