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View Full Version : Implications of errors in wheel alignment



shobley
06-19-2009, 10:31 AM
I just noticed that one of the wheels in my differential drive robot is off axis by about 1/8".

What are the implications of having one wheel slightly forward of the other?

Here's a pic of the setup:

http://forums.trossenrobotics.com/attachment.php?attachmentid=1385&d=1245421776

ScuD
06-19-2009, 11:10 AM
If they're still in parallel to each other and you correct their speed offset with the encoder there shouldn't be a problem with it going straight forward.

Turning will cause slightly more drag than if they were aligned, but given your 'closed-loop' control it should work fine.