Cat Ball in Ball
thingiverse
Another toy for cats, a ball with a ball inside that rattles when rolled around. My cat doesn't like it very much, but it was a nice CAD exercise. Source moved to http://shapedo.com/telepath/cat_ball_in_ball Instructions Must be printed with support, I got a perfect result with a minimum angle of 70 degrees, so it only supports the outer and inner balls. I printed it solid, which makes the outer ball really sturdy.
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