I bought 3d Printer Kit on eBay. They sent few metal and a lot of plastic parts. I have many years experiences in 3d cad design and cnc machinery. I knowed thin plastic parts without bearings won't work. I got an idea and design my own printer.
App has more than 20 photos of 3d cad model. I included short description about 3d printing and list of mechanical parts with links to eBay.
With my app you will get important informations for building 3d Printer with some unique ideas.