Been interested in building a 3D printer for a while now. I like the idea of knocking something up in some modelling software like Google Sketchup or a CAD app and then seeing it being printed out as a real object. Couple of months back took the plunge and started on it. Theres a ton of different "open source" printers that you could make. The one I chose is called a MendelMax .. the body of it is made from aluminium extrusions, which makes it pretty sturdy. So here we go start building the base. The blue "plastic" pieces you see are actually printed on another 3D printer. "A frames" built .. need to make sure everything is dead on square. Start installed the motors for the X axis Looks good so far the extruder (ie print head) carraige is installed ... ... until you look closely .. we have an alignment issue !! I'll carry the storey on later.