I'm wondering if the tracked robot I'm building will have enough torque...
It weighs 20kg( really max)
wheels radius (wheels and tracks) 4.5cm 1.8in
I have 2 motors giving 2000 rpm, 0.2n.M 28.3in-ozf
I wanted to use a 1:1 ratio for doing speed, and a 2:1 for climbing. max speed at 1:1 about 20kmh, 12mph.
but surprise, when I try stopping the motor with my hand, I don't feel its that powerfull, and its getting me worried a bit for the capacity of the robot. I have a bit of place for a few pulleys to do a gearbox if needed, cause I'd like to try making it going up stairs.
So, here is my question: What minimum ratio do you thing It needs, to be unstopable?
If some of you have allready compared torque, weight...
Thanks a lot,