[CASL-L] Code and go robot mice

[Elaine Shapiro]

I have purchased several of these from Learning Resources
https://www.learningresources.com/stem-robot-mouse, don't use them that
often and now for the second time I have one that doesn't move in straight
lines.  Its tracking is skewed to one side or the other.  LR replaced one,
but now that I have a second faulty one, and the 1 year warranty is up, I
have to pay (with a discount) for a replacement.  Am I just unlucky, or is
this a common problem?

Otherwise, a great product.
Elaine Shapiro, Broad Brook School
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