Prusa MK3 Extruder Idler With Bearing

This mod replaces one of the Bondtech idler gears with an MR685ZZ bearing, without the need to modify any other parts of the extruder body. It also requires a 5x25mm stainless steel shaft, but I suppose you could print one instead. I prefer the rigidity and strength of the steel.


**Parts needed**
* [1x 5mm Dia. Shaft 25mm Length](https://www.servocity.com/5mm-stainless-steel-precision-shafting#371=464)
* [1x MR685ZZ Radial Bearing](https://www.amazon.com/gp/product/B00GGQ4YJK)