Wider PrintrBot Base and 12mm Z axis, Stylized

This is a Widening of the original PrintrBot base that I had an idea for since I am building a larger than stock Printrbot. It is designed to hold 12mm Z rods and LME12UU bearings from VXB. I have stylized the parts I edited to be a bit more edgy. I will be stylizing and uploading the rest of the pieces as I replace them on my machine (which is not complete yet.)

the X axis will have slightly less travel to make room for the 12mm hardware, and the Z rods will sit a little bit deeper in the ba