|
Re: Wanted: CIM RPM data For actual robots
de,
What we need is the gear ratios and wheel diameter in order to calculate ground speed.
Case in point, our robot this year.
We had a 3 speed (1:3, 1:4, and 1:12 ratios) with a 9:21 ratio output sprocket driven by CIM motors (5500 rpm free spin) into 7 inch diameter tires. Drivetrain efficiency was guesstimated at ~81%.
This gave us a ground speed of:
1st gear: ~4.8 F/S
2nd gear: ~14.5 F/S
3rd gear: ~19.4 F/S
__________________
___________________
"We are not now that strength which in old days moved earth and heaven; that which we are, we are;
One equal temper of heroic hearts, Made weak by time and fate, but strong in will
To strive, to seek, to find, and not to yield. "- Tennyson, Ulysses
|