Trimming surfaces with polysurfaces


I’m not exactly sure how to do this. I am trying to take this surface…

…and subtract this polysurface (cyliner-like solid)…

… From it, leaving just the outside and deleting the inside. I’m still new to Rhino, so any help would be much appreciated!

Tim Rodden
Kansas State Architecture

Hi Tim - can you post a file with the two objects? Has Trim failed here?


1 Like

CupholderClassFile.3dm (3.2 MB)

The split didn’t fail, but it left me with the inverse of what I was looking for…

Actually I just redid the split, and it seems I had them grouped together. All I had to do was ungroup them… oops. Thank you for your feedback!

Here is the final product:

Thank you again!