Brush for 3D-Printer Threaded Rods

Remix of @werz99's clever design (https://www.thingiverse.com/thing:4278425) that is a little shorter and slimmer to fit around the Z-axis rod of the UM2 and similar printers that have the rod very close to the back wall of the enclosure.

Needs the brushes of 3 oral-b toothbrushes. Remove the smal pin and pull out the brush.
Stick it in the 6x6 mm square holes of the tools.