Filament Guide

myminifactory

I've been relying on the Tech Shop Filament Guide, which functions perfectly, but I encountered issues with the filament unspooling or jumping off the reel. This guide utilizes an 8" piece of PTFE tubing (4mm OD/2mm ID) to steer the filament, keeping it securely on the spool. The tubing extends partially over the top of the spool. This design installs most smoothly on printers with an extruded aluminum chassis but can also be used with other printers featuring two 5mm mounting holes. Since I installed this guide, I haven't experienced any filament unwinding or jumping off the reel. I developed another filament guide design that employs 1/4" PTFE. This works well if you're using my design for an Airtight Filament Canister found here: https://www.myminifactory.com/object/airtight-filament-canister-29469 The new filament guide enables direct connection of the canister to the filament guide. I've also discovered that the larger tubing is beneficial when using a spool, featuring less drag.