My turn for help with Pulse multiplier for test rig.

[Neale]

That works on so many levels, a complete solution, I am truly in awe

Almost, but not quite. It just needs a solenoid-operated lever to give the user a slap on the wrist when the limit switch is triggered.

[Robin Hewitt]

Almost, but not quite. It just needs a solenoid-operated lever to give the user a slap on the wrist when the limit switch is triggered.

Like me you are forgetting Gotama's advice to Siddhartha... "Beware of too much cleverness".

[EddyCurrent]

Almost, but not quite. It just needs a solenoid-operated lever to give the user a slap on the wrist when the limit switch is triggered.

Or, when the handle stops turning, you've hit the end stops.