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Here's a view of 1/8th of the final assembly with LEDs in place. 280 LEDs to go.

Resting atop the PCB is the CNC machined aluminum board mount, holding in the foreground one of the four DC-DC stepdown converters from short-circuit.com. The board mount is topped by the three conductor commutator assembly, handmade from readily available materials and a few custom laser cut plexiglas spacers. The commutator mates with a set of brushes to deliver +15VDC, GND, and a timing signal from one of a pair of hall effect sensors mounted on the assembly rotating about the vertical axis (each quadrant of each PCB also has its own hall effect sensors to sense rotation about the horizontal axis).

Comments (1)

Wow man! Good luck!!!

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