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Used Arduino Uno and Adafruit motor shield to control this robot. I tried to build an "inchworm" similar to the hexbug design, but it went horribly wrong! The final result is cool, not quite what I wanted, but a good learning experience none the less. Again used steel strapping that is commonly used for plumbing applications to construct the frame and most of the linkages.
This is a companion discussion topic for the original entry at https://community.robotshop.com/index.php/robots/show/painfully-slow-crawler-wip