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This is awesome, but I'm not clear on how you're getting power to the spinning portion of the project.. I dont see a slipring.. I see you have one wire hooked to the bearing, so I'm assuming you're using the bearing for one conductor, but then how are you getting ground from the base to the spinning part of the project?
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That's what I was thinking... When I saw the picture, I didn't really care to make the puzzle, but I thought "Cool - He's going to show me how to make a quick and easy pressure chamber to shrink those balls!" :-)
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