We're trying to run a pivoting arm with a REV servo with a ServoCity servo gear driving a larger gear at a 10:1 gear ratio in continuous rotation mode. According to the REV web site, its stall torque is 187.8 oz-in so we'd thing we'd have 1878 oz-in to work with. However, the arm stalls and we're afraid we'll kill the servo.
We were powering it with a Neverrest 40 motor at a 3:1 gear ratio, and it has 350 oz-in of torque (so that's 1050 oz-in). It worked fine when set up this way.
We think that 1878 > 1050, so we aren't sure why the geared servo didn't work as a replacement for the motor.
We powered the servo for the test with the REV servo programmer, so maybe that is an issue, but we're not sure. We ran in it "test" mode for continuous rotation, and it couldn't fully lift our arm.
Has anyone else tried these servos? (Can the GDC make an exception so we can use 9 motors instead of 8?
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