9/9/15: Update on X-Carriage and Filament Fan Duct Here is my interpretation of Josef Pr?šas amazing work! It's a collection of existing derivates plus my own improvements. Although a Printer is never feature complete, I think I have tweaked some parts for the better: Frame is made of 6mm Plywood. BOM is based on the i3 Rework: http://reprap.org/wiki/Prusa_i3_Rework_Bill_of_materials Almost complete list of Screws: ISO 7380, M3x10:20 ISO 7380, M3x12:20 ISO 7380, M3x14:10 ISO 7380, M3x16:30 ISO 7380, M3x20:2 ISO 7380, M3x30:2 ISO 7380, M3x25:10 ISO 7380, M3x45:3 DIN 931,M8x60 10.9 :1 DIN 912,M4x25:5 DIN 912,M6x40 :1 DIN 912,M8x30:1 Nut M3:45 Nut M4:5 Nut M5:2 Nut M6:3 Nut M8 Locknut:1 Nut M8:1 Nut M10:34 Washers, 3.2x7:50 Washers, 10.5x20:34 Washers, 8.4x16:5 Washers, 3.7x5:2 Step-By-Step Assembly: https://www.youtube.com/playlist?list=PL8vyAMSRf7n8sPgWLZoEFFziwj7tyk1Ea Check out these fun extensions to this printer: Laser Mount: http://www.thingiverse.com/thing:976539 CNC Mount: http://www.thingiverse.com/thing:755617 Join the discussion (german only): http://goo.gl/HfYRoU