Mesh Boolean union


#1

I make a Mesh Box from Mesh primitive. I extract one face with Extract mesh part. Without any modifications of extracted surface or the rest of box, I want to union back extracted surface with box with Mesh Boolean union, but it fails. All surfaces are dissapear. I use Rhino 5 SR6 64-bit Commercial with latest update. I use this technique for repairing complex mesh surfaces. In Rhino 4 it works fine.


#2

Why would you be using Union (which is for closed volumes essentially) instead of Join (which should join the mesh face back to the original)?

–Mitch


#3

Thanks for your replay Mitch. I use Union instead of Mesh Boolean union with multiple closed mesh volumes and after 3ds export, some mesh volumes (for wich I used Union for extracted surfaces) are missing, . But in the last days Rhino made some updates and after I did some tests, it seams like this problem is resolved and it works fine with Union.

Dorian