Then max velocity achievable (without taking friction into consideration) will be between ~0.27 m/s
to ~0.53 m/s
. It's clear that 1" wheels don't really cut it, hence let's go with 2" wheels.
- Circumference = Diameter * pi
- Velocity = Circumference * RPM
To have acceleration of 0.25 m/s2
(to be able to reach 0.5 m/s
velocity in 2 seconds
) each motor has to be capable of at least 63.5 mN*m
- Force = Mass * Acceleration
- Torque = Radius * Force
You probably don't want to run motors at 100% duty cycle all the time, so to be on a safe side lets say that You want to achieve aforementioned results while running motors at 75% duty cycle. So, max motor RPM has to be at least ~252 RPM
and stall torque has to be at least ~85 mN*m
For what You want, something like 300 RPM 12V 0.39 N*m motor
would be more that enough. Of course if plan on using 12V. What voltage are You planning to use?