Well, the reason the metal one failed, was because one of the sides fell off. Also, the plastic one has been scrapped, motors taken from it. Neither ended up with any electronics, and I think as soon as I can get my hands on some thin HDPE, or recover the sheet I got ages ago, the one i made the ant with, so I can make another. I now go to an engineering college, so I can 3D print my own bots as well. Antweights only, though, they're only MakerBots, the small ones. I can also use Milling Machines. I just have no idea how to use SolidWorks. I can do basic things, but not much.