Hi Folks, I have designed a small DC motor driven actuator that simply arcs a lever back and forth over a 10 mm arc. The system consists of a 1 start worm, and a 28 tooth helical gear. This lever has physical stops at both ends of travel. On occasion when the lever hits one of the stops, I experience bind between the gears and the system locks up. I need this system to actuate rather quickly, so cannot slow it down.
Is there any advice that anyone has to prevent a bind condition in a system like this? Would a 2 or 3 start worm prevent this?
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