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GDamiani2927 / VORTEx

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Wiring to Electromagnet #3

Closed GDamiani2927 closed 7 months ago

GDamiani2927 commented 8 months ago

The central axle will likely be spinning at RPMS in the 100s, how do we get signals to a release mechanism from the pico stored in the hub?

GDamiani2927 commented 8 months ago

Could use a slip ring, which allows for rotational transfer of power/signals. Costs about $15 from Adafruit (ID 763). Rated for 300 rpm for a clean signal and 240V @2 amps Could use a power/controller unit on the rotating axis itself, either underneath or above. Could introduce problems with rotational forces acting on the circuitry. 2 amps is not a lot, especially for an electromagnet that needs to hold a rapidly rotating object securely, could be another issue.

GDamiani2927 commented 8 months ago

Update 2/16/2024, slip ring arrived from Adarfuit, adding to CAD model.

GDamiani2927 commented 8 months ago

Slip ring has to be able to reach the electromagnetic coils, meaning the wires essentially have to go through the axle. This means either wrapping said wires around the axle (making it impossible for the axle to fit through the 90 degree gearbox) or sending the wires through the axle via a hole in the axle, which would require much more fabrication but would be a better solution long term.

GDamiani2927 commented 7 months ago

Slip ring adaption works well at high RPMs, closing for the time being, but needs testing in actual circumstances.