Micro-Machine Challenge

In the General Form, someone was asking how to build a little compact tank. It was pretty simple to reverse engineer… then I got to thinking, what’s the smallest tank I could possibly build?

I was able to build this micro-tank using only 14pcs (sans pins) with Hexbug Brains/Motors. Its actually pretty fun the drive around on our dining room table.

Challenge –> Whats the smallest micro-machine you can build?