[Al Skierkiewicz]

bad,
Some of the additional info we might need is...
1. terrain, is it flat, paved, uphill, etc.?
2. Is this outside with a wind component?
3. Is there any other electrical load other than two motors and controller?
4. What is the ambient temperature?
5. Is the payload in addition to robot structure?
6. Have you calculated out the transmission ratio needed to get 12" wheels running at 3 m/sec?
7. What would the target motor speed and torque be for that calculation?