This post is a full description of all the building process, the main idea started with the ratbot, and then I found out that I could follow the same concept with a different approach :)
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This is a ratbot derivated, faster, cooler, and with more fun! :)
I like pretty much the way it is going until now, but there are still things I want to do. Beside that, I can´t make it move straight in a line, it seems that it is not well balanced.
When finished, I will post details about the building process.