Wrapped teflon tape around the spool holder to reduce the friction. : r/3Dprinting

Mark Rehorst's Tech Topics: Tangle-Free 3D Printer Spool Holder

Cable Mechanism Maths: Designing Against The Capstan Equation

Reviving a Makerbot Replicator 2X

3D print Eleccelerator

3D print Eleccelerator

Quick tip: to reduce friction, wrap the spool holder in wax paper : r/ender3

Introduction to fused deposition modeling - ScienceDirect

Applied Sciences, Free Full-Text

Make 3d printing 2014 by wattronix - Issuu