Effective Drive Base

[Tom Line]

Originally Posted by Akash Rastogi

The kit bot rolls over the bump with ease because of the large wheels, it does not bottom out on the top of the bump. However, turning with 4wd is a pain. The robot "jumps" as it counters the friction while turning with skid steer.

Try actually adding some mechanisms to that kitbot frame. The COG is so high that it gets scary pretty quickly. We've done a lot of testing the last couple days, and 6 wheel bots long, 4 wheel bots wide, and even 6 wheel bots wide are all pretty darn scary on that bump - the smallest twitch makes them flip over. We're moving on to more exotic drive systems =). You absolutely CAN NOT decide on a drive train without at least building a small trial-bump to play with and see how your bot is going to react.