That's probably not the correct term, one that limits the torque transmitted through it.
Quote:
Originally Posted by MrForbes
mcmaster-carr search for torque limiting couplings
Or...if you're programmers are good, use a limit switch.
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Our previous design used limit switches, but they are very close (~1-2 inches) from the axis of rotation, so the slight differences of when they are pressed could become noticeable differences in angle. We measure the angle by using an encoder that was zeroed at the lower limit switch, so these small differences apply to every shot we make. We're planning on just running the shooter into the hard stop, until the encoder reads a speed of 0, and using this as our reference point as it should always be the same. The mcmaster carr ones look good, except that weakest one slips at 25 in-lbs, which is quite a bit too much (more than the motor & gearbox can produce at stall current). We also don't really want a flexible one, and the rigid ones only go down to 72, which is almost 5 times the torque of the motor.