derived from the original ultimaker logo robot; https://www.youmagine.com/designs/official-ultimaker-robot scaled the original bot 1,9x, cut off the back, move the antenna's to the middle and added a hole for the magnet. The magnet is 25mm/5mm, you can easily scale the hole using the design spark mechanical file (= my favorite free cad software). printed in colorfabb "glowfill" at 200 celcius, bed 55 celcius, on my Ultimaker2 used a 10% line fill support (cura > expert settings, structure type, lines) Thou shalt not steal: http://www.samachar.com/MakerBot-Files-For-Patent-On-A-Design-Derived-From-Work-By-Its-Community-of3aNigdjag.html