Six sided die with ball bearings (1-6) on each side. With a .25mm clearance around the balls they should all move freely. Slightly smaller version, by request, but I couldn't make it much smaller without getting a little too close to the minimum space needed for moving parts. They're wedged in there pretty tight so you'll need to take some time and break them loose.

Dimensions

IN: 0.665 w x 0.665 d x 0.665 h
CM: 1.69 w x 1.688 d x 1.69 h

Comments

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Also, the new Frosted Detail and Frosted Ultra Detail allow a gap of .1 and .05 mm.
April 22, 2011, 3:20 am
Already printed it out and it worked. I had to work at it a bit to get the bearings loose and even had to stick it in the freezer for a bit to get the 6 side to move, but it works just fine. I'd post a picture, but my camera doesn't work very well for something this small. It's . . . oddly satisfying to just sit around and roll the bearings around and around in their tracks.
April 5, 2011, 12:13 am
Cool design but in my experience you need 0.6 to 0.7mm clearance for parts not to get fused(at least in wsf) Let me know if you get this printed and I am wrong as it is really cool.
April 5, 2011, 12:10 am
 
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