On September 19, 2014, the halfscale Simple was born. Several weeks prior, I had taken the Printrbot Simple 1405 artwork to a laser cutter and cut it at half scale (actually 0.53). I obtained 4mm rods from McMaster, linear bearings on eBay, and Nema 8 motors from Pololu.com. I also selected a number of appropriate parts for the extrusion head, and I turned some brass on a lathe to make a small Z coupler and Z nut. With a few intense days of work, I had a printer that moved in X, Y, and Z. A few days later I had it printing.