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Originally Posted by ksafin
Well we've probably run the shooter wheels, in total, for over 2 hours of run-time and nothing has ever gone wrong (this is actually an insane amount of time considering robots are typically not run for very long times).
When you couple the strong adhesive and with the centripetal force of the wheel, there's no way these puppies will fly off.
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Something to consider is that the way most teams practice is not indicative of an FRC match. Their is significantly more vibration, impact, and otherwise dynamic loading that the robot will see during a match compared to the loads it sees when you drive around picking up frisbees without the full contact of a typical match. Any field reset volunteer could tell you about the buckets of stuff they have to pick up off the field.
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Originally Posted by Justin Shelley
I believe those are the smaller wheels, not the pneumatic. If someone is spinning that pneumatic wheel over 4,000 RPM then the are lucky they still have a wheel.
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I think many people are running tires at 1:1 off a CIM and just assume they are getting close to a no-load free speed. If they were to put a tachometer on it I bet they would find their true rotation rate is significantly slower.