Prusa 3D printer. Made with threaded rod, do not need frame. Just printed parts, bars, nuts and washers. Test piece video: https://www.youtube.com/watch?v=oqf-mOOSR0c Strong printed parts and strong frame. Power and electronics inside the box. You can help me to do more things like this. Buy my designs at pinshape:http://pinshape.com/users/27920-jsirgado The OpenSCAD file is there, you can change all.New object double Hot-End Fix. http://www.thingiverse.com/thing:1019352 All you need: I joined the pieces in plates: But you can print all in separated, use the photos and the OpenSCAD software to help you on mounting. You can change the printer using rods of different sizes, use one bigger or two beds, you can change the height too. Use my other objects to improve your 3D Printer: That is all.