Prusa i3 T3Steel Toolson Edition PCB Pen Holder

thingiverse

Pen Holder for Prusa i3 by Toolson, a device that magnetically connects to X-Carriage M4 bolt heads from behind. Eight 3mm neodymium magnets are utilized. Gluing soft fabric into the pen bed is advisable (see images). Any small adjustment nut fittings from Thingiverse can be used, with an M3-nut seated under the magnets and secured with hot glue. M3 threaded rods cut to fit the pen can also be employed. To prevent damage to the tip, a rubber band can be used in conjunction with not tightening the screws all the way to allow the pen to slide freely in the holder.