Filament Guide

I optimized this sensor guidance because there are different connector positons. The role is at Amazon. fastened with a M5 screw and self-locking nut.

https://www.thingiverse.com/thing:2567386

https://www.amazon.de/Drucker-V-Slots-Riemenscheibe-Kunststoff-Rillenkugellager/dp/B078M8VG48/ref=sr_1_1?ie=UTF8&qid=1523540103&sr=8-1&keywords=3d+drucker+vslot&dpID=51YUc7mVakL&preST=_SX342_QL70_&dpSrc=srch