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2 points of note...
The van door motor is a great motor but it has some limitations.
#1 it is thermal protected which means if you stall if (or run it near stall) for too long, it will give up. This makes it hard to burn up but a pain if you really need to lift and the circuit protection will not let you.
#2 It really does not like running into a brick wall. If you are running it at full speed and your arm hits its end of travel stop, it will let you get away with it a few times (under 6) but not much more than that. After that, the teeth will have a noticeable bend to them (if you pull the cover to check them out) and you can actually see the motor slow down as that section of teeth mate with the worm gear (this is very obvious at low voltages).
Other than that, it is a pretty good motor that can give you many matches of useful, reliable service.
Joe J.
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Joseph M. Johnson, Ph.D., P.E.
Mentor
Team #88, TJ2
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