Advice on using eddy current on aluminum. I want to drive something along an aluminum sheet without any actual contact. My idea is putting a magnet wheel inside. Could it work and what would the optimal magnet orientation be?
>>2976770>Could it workNo. Sage.
>>2976896How bout dont sage and keep it alive because my proof of concept worked and my prototype will be up here next week.
I'm lost is this not a permanent magnet stator? aluminum has higher resistance than silver so heat could be an issue.i think it was pole star that uses a 3d printed version to decrease air-gaps and thus r-value.
>>2977544It is not a permanent magnet stator, it's just a scrap part I had that already had bearings. The magnetic come from neodymium magnets placed alternating around it.
>>2977544I can show eddy current braking, and if I slide the aluminum forward and back under the wheel it spins corresponding. Next step is to motorize it and put it on a vehicle to see how much drive I get. The final product will need a wheel with less than 1.25" diameter, so this is just a test setup.
>>2977530Post webm of it working
>>2976770>Could it workYes. But very low power. This us how electromechanical watt-hour meters work.>and what would the optimal magnet orientation be?Much smaller air gap between magnet poles than this>>2977530You'll need some sort of field return path between your rotor and the bottom side of the air gap with the aliminum plate.
>>2977734Pull string to spin it up. Rolled it over a couple times to show clearance.
