Crash with some step models

[ch-aurich]

Some 3D models can not be fused to the pcb. I fuse them to the pcb to form a single solid that can be exported as stp again.

From my point of view this is more a freecad issue, because these models can't even be fused manually using freecad. In future there will be an assambly module that is an better alternative than fusing the parts together.

Until then there are two alternatives, as far as I know:

• using models that can be fused (you can try it manually by fusing your models together manually, if one fails you have to replace it)
• removing the fusing: this way you will have your pcb and the parts seperately and can not rotate and translate them via layer 223 in eagle (the way eagle2freecad implements multiboard support) you would have to remove the following lines

    #combine pcb and part if the part is on this pcb
    for part in parts:
      if extruded.isInside(part.Placement.Base, 0.000001, True):
        extruded = extruded.fuse(part)
        part.nullify()

I will try to focus the freecad team on this issue, maybe there will be some improvements in future releases.

[ch-aurich]

By the way: you will get a traceback like that:

Traceback (most recent call last):
  File "/home/cau/.FreeCAD/eagle.FCMacro", line 458, in <module>
    extruded = extruded.fuse(part)
Exception: BRep_API: command not done