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Well I am not sure I understand the phrase 'time to build' but that would be the time it took me to cut the parts and mount the motors, getting it to work was much much longer.. I learned alot and anyone that wants to take on this project will hopefully read through this and pick up some important tips.. Well a few quick tips, you don't need to spend tons of money I have built 4 of these now with different motors and probably the best balancer was a really small one ...
This is a companion discussion topic for the original entry at https://community.robotshop.com/index.php/robots/show/ybot-balancing-arduino-robot