auto-balancing bench grinder arbors

[tonyfoale]

Thanks for the write-up gents!

Tony: Where did you find "affordable" carbide balls? I've been looking and they'd cost more than the grinder I have... (which does a natty rumba across the bench).
Also, the case looks pretty easy to 3D print, I may have a go at that!

Dave H. (the other one)

Try https://www.acerracing.com they also have a presence on Amazon and eBay. Good luck. IIRC I bought a pack of 10 1/4" balls, I think that they were around US$15.
I actually bought the balls to use in a Leeb style hardness tester that I built. However, I found that steel balls worked better in that application.

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