Doctor, clinical terminologist, mechanical puzzle designer and model maker. Builder and owner of six 3D (seriously modified) printers - twotrees Sapphire-S, Creality CR-10S, E3D BigBox Dual IDEX, RichRap 3DR, Mendel90 and the original 2011 eMaker Huxley. Blog: http://mynext3dprinter.tumblr.com. Links: http://about.me/richgain Visit the http://www.shapeways.com/shops/microcubology shop for loads more 3D printed puzzles. Commission design or printing at my 5 star-rated printing service in the adjacent link.