Summary

Print specs
2 shells
15% infill
no support

Material PLA
Material for high heat applications PC-ISO (Polycarbonate Iso or Ultem)

This part was originally printed in PLA with 2 shells and 15% infill as a tester the PLA it can be used for low temperature applications (PLA will not hold up to high heat applications). This squirrel cage fan was installed in a bathroom the fan is next to a heat lamp and the failure mode is documented above. The final part was printed in PC-ISO (Polycarbonate Iso not Ultem) on a commercial machine

Final part settings:
PC-iso
Fortus 400mc
Solid Fill
Dissoluble SR-100 support
0.010in layer height
Time: ~10 hours