Good afternoon to everyone! I am a Rhino newbie, and I am trying to join 3 open polysurface rings into one ring (it’s a spare part that I want to 3d print for a drawer). I basically created 3 separate extrusions for my ring, the bottom and top ring are identical and the middle ring is thinner and has a protrusion towards the inner part. I opened up the surfaces where I want all rings to attach to each other (hence I made them purposefully open polysurfaces, but for some reason the join doesn’t work between them.
Thank you in advance for your help!
ring.3dm (127.1 KB)