RPM's

[EricH]

Originally Posted by Cory

You could mount a wheel directly to the globe motor, but it is not a good idea for two reasons.

It has been done. 330's 2002 robot used them to drive a mini-robot for extra points. However, that was maybe 4lbs of metal and wheels. More than that I wouldn't do. (We also used them on an arm in 2004--we used two of them for that particular arm.)

[AndyB]

CIM Motor RPM = 5310
Reduction = 12:1

Reduced RPM = 442


How'd i mess that one up...

6 * 3.1415 = 18.849" circumfrence

18.849 * 442 / 60/ 12 = 11.5 Feet Per Second

Wow, must have hit the wrong button somewhere. Thanks Cory.

[Madison]

Originally Posted by AndyB

CIM Motor RPM = 5310
Reduction = 12:1

Reduced RPM = 442


How'd i mess that one up...

6 * 3.1415 = 18.849" circumfrence

18.849 * 442 / 60/ 12 = 11.5 Feet Per Second

Wow, must have hit the wrong button somewhere. Thanks Cory.

Remember that this calculation is for the CIM's free speed. The motor will never achieve that speed on a robot because of load, so the actual output speed is probably something closer to 45/50% of this.