3d model of printer is on my web page(you can rotate and zoom model): http://architecturalmetalwork.infoI 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.