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Hey! The use of airsoft bb's was inspired by daMaker's design: https://www.thingiverse.com/thing:2775116
The actual design of the housing was inspired by Ratm3at's design: https://www.thingiverse.com/thing:1953369 I liked Ratm3at's design, but only had plastic bb's. I had seen daMakers design earlier in my quest but wanted a simpler housing design, so I drew my own combining what I liked from both.

Thrust bearing Ø 80mm / 160mm, self enclosing, 6mm ball Ø
by daMaker
Lazy Susan Bearing
by Ratm3at