Stylus mounting head for the Ultimaker, that turns a 3D printer into a single pen plotter. May also be useful for mounting other lightweight tools.

Print two of the PrintHeadClip parts. Print one each of the StylusBracket and StylusClamp parts. Clean out all holes with 3mm drill bit. Glue pieces of inner tube rubber into clamp angles for better grip. Assemble with three 3mmx10mm bolts and nuts. Tighten upper and lower bolts completely, with parts at 90°. Mount pencil or pen in bracket and tighten center bolt to fix the clamp. Clip upper and lower print head clips onto the Ultimaker print head threaded rods.