My brother and I are building an X/Y plotter with one, which is either going to turn into an etch-a-sketch printer, or a CNC/3D printer hybrid. The other one i

My brother and I are building an X/Y plotter with one, which is either going to turn into an etch-a-sketch printer, or a CNC/3D printer hybrid. The other one is either going to become a quadrocopter, or an arcade table (cheap coffee table, cheap LCD, and some controllers).