Lead Rod more power and an Angry Beaver

So the machine from here on out will be referred to as The Angry Beaver.

On to more serious business. She runs at dirt slow speeds. i have spent the last day trouble shooting and i believe i have a solution. firstly I need new lead rods. preferably with less than 13 threads per inch and rigged. My leads have a lot of warps and i think it is do to assembly and poor handling essentially they are cheap. Secondly I need more power. A 40 volt supply would be perfect. thirdly an all aluminum and/or iron frame would be spectacular.