1" Barbell/Dumbbell Collar

thingiverse

I wanted a collar for my weights that I designed myself. Several different designs were available, but none of them worked out right. First, I printed the Olympic-sized design from Brian Powell's thingiverse page - https://www.thingiverse.com/thing:3655644. I was looking for something to test first, and this model fit the bill. My bar diameter measured 24 mm, and I had some 5.25 mm thick rubber on hand. I'll include the step and STL files so you can start your own design based on it. The model is also included in Fusion 360 format at this shared link: https://a360.co/2X8HVo4. I used all 3 mm diameter hardware - two 30 mm long, two 10 mm long, one 14 mm long, and five plain nuts.