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Hello again everybody my name is chickenparmi, and I like robots. Today I would like to show you my obstacle avoidance bot, with a difference. The difference with … Read more
After seeing RatBots cool drifting moves I wanted to try caster wheels. I had a Ducted fan lying about from an experiment gone wrong (prior to joining LMR) and … Read more

2 Wheel Drift

I have a 2 wheeled robot - 2 GM10's with little thin wheels.  I've hooked them up to an arduino with an L293.  I have it going forwards, backwards & turning well enough.  The problem is when going forward, it seems to drift to the right slightly.  Any suggestions as to what the problem might be?  Do I need wider wheels?  A proper castor?  (ATM, the front of the chassis rests on the ground). 

Basically, what I'm asking is, with 2 small motors and thin wheels, can I expect a bot to go in a perfectly straight line?

Thanks!