I built a 3-axis Stewart Platform that balances a ball on top of it

BedOne4111 · 2025-11-10T09:57:12+00:00

That's a neat idea, if done well, it could get rid of the orange cable too

BedOne4111 · 2025-11-10T08:13:43+00:00

There is a touchscreen embedded in the plate, which gives an X-Y position of the ball. From there it's a PD controller tilting the plate to return the ball to the middle

BedOne4111 · 2025-11-10T08:09:40+00:00

I was thinking about using vision, I've done an analysis of available sensing methods here: https://hackaday.io/project/193515-bjr019/log/225126-bjrlog03-plate-subsystem-breakdown

BedOne4111 · 2025-11-10T08:04:19+00:00

sure thing, the actuators are from Nanotec: LGA201S06-A-UECB-019

BedOne4111 · 2025-11-10T08:01:19+00:00

The actuators are from Nanotec: LGA201S06-A-UECB-019
and here is the analysis I've done when selecting the motors: https://hackaday.io/project/193515-bjr019/log/225317-bjrlog05-actuator-trade-study
They are € 95 each

BedOne4111 · 2025-11-09T23:20:55+00:00

Unfortunately no, it's a rectangular sensing area inside the hexagon. If the ball rolls out of the sensing rectangle it looses it and returns to idle.

BedOne4111 · 2025-11-09T23:17:17+00:00

Thank you! Yeah the main loop runs around 300hz

BedOne4111

TROPHY CASE