A20M Filament Guide

1.75mm Filment Guide re-mixed from one by Friecke. Uses bearings ABEC9 or 608ZZ. Also needs a M3-5 cap bolt by 13mm and a M3-5 nut with a plastic insert and a M3 washer. The bearings will need to be pressed in using a vice. The plastic bearing post diameter will need to be sanded to get a tight fit without it breaking. The rollers fit close enough together so that the filament will not jam or hang up as it is pulled through. That allows the filamant roll to be placed almost anywhere behind the bracket as the rollers will keep it aligned to feed into the extruder.