Quote:
Originally Posted by gpetilli
We are planning RS775-18 with a 20:1 ratio (plus the added torque from the 6:1 MiniCIM).
Since there is enough torque to overcome the CoF (1.2) of our wheels, the motors never stall and the current per motor is 45A when pushing a wall (with the wheels slipping on the carpet).
|
At 12V, a 775-18 motor draws 45 amps at 6385 RPM
At 12V, a MiniCIM motor draws 45 amps at 3008 RPM.
But if you have them geared 20:1 and 6:1, respectively, they can't simultaneously be at those speeds.
6385/20 = 319 RPM
3008/6 = 150 RPM