Marble Madness Minimalistic
After the two designs in
https://www.thingiverse.com/thing:3041669
with a stepper motor and
https://www.thingiverse.com/thing:3065612
with two micro switches and two relays, it is now time to go to a minimalistic version with only a switch.
The principle is well known from the various useless machines on Thingiverse.
To create enough cooling time for the switch handle, a dummy cylinder is placed at some distance.