Quote:
Originally Posted by vps
window motors, snow blower motors, and van door motors (these have the most torque) have worm drive. Use those.
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These are 30 watts or less, meaning they are very slow.
Given lack of machining, I agree with the bike brake idea. Otherwise I would say use a steel punch into a hole in a 1st stage gear in the gearbox, pneumatically actuated. 1538 did this with great success in 2013. Requires some precision machining to line up the punch with the hole though.