kossel tennis ball foot

thingiverse

I really loved JamesWhite's tennis ball feet, but for mine, the balls were a bit too big. As a beginner, they would often warp off the bed or have a corner pop up when I tried to print them correctly. When they came out right, they still had a lot of sag on the overhanging parts. So, I started thinking about ways to improve them... So, here's what I came up with. They print without supports, and the grip on the tennis balls is perfect. The design has no overhangs, and there's about 40% of the ball exposed below the lowest point. I printed mine at a .3 layer height, with 1mm perimeters and 10% infill.