Brep Become Invalid Brep After Orient transformation


I have an strange problerm on Orient Brep using “Orient” component in Grasshopper, and I inspect the output of the component’s transformat Matrix, I can not find what cause the Invalid Brep after Orient Transformate Operation, Is Anyone can help me?
Thanks a lot.

Aluminum Framework.3dm (592.7 KB)

Aluminum (8.3 KB)

  1. Upload file!
  2. in your Second Panel it‘s called referenced brep. Maybe it‘s already invalid before?
1 Like


  1. I have already upload file with problerm brep;
  2. I don’t think so,because i using Brep’s properties IsValid test the file
    Thanks a lot;

the .gh file.

@Michael_Pryor, *.gh file has uploaded