About this 3D model

I made this to clean stripped plastic from the teeth of the extruder gear automatically when running the printer. You'll need a toothbrush head with the hairs trimmed down to about 1-2 mm and som glue (i used normal cyanideacrylic superglue) First glue the toothbrush head to the holder and the mounting is as simple as using the screw that is normally on the left side of the upper part of lawsy's MK4 extruder. Also try to add some tension towards the extruder gear when tensioning the screw. This has worked wonders for me, i hope it will for you too :)