Download Free 3D Model Robo3D R1 Filament guide 3D Print Model

Summary
Use this guide to install at the top of the printers cut-out hole.
Twist to lock it in place.
Take 6-8 inches 4mm PTFE tubing and insert thru the hole so that filament is fed from below and exits at the top.
Then, pull the filament into extruder.
This will cause PTFE tube to BOW and prevent filament to stap or grind against the printer when printing high objects or generally dealing with allot of LEFT to RIGHT motion.
Spool should be attached on the side of the printer.