PTFE Guide for Self-Centering Spool Roller (3kg–5kg Spools)

This adds a PTFE filament guide to the original self-centering spool roller design, making it easier to maintain smooth filament feeding for heavy spools. Designed in Fusion 360, the guide ensures reduced friction and better alignment, especially for high-weight spools that can cause drag or uneven feeding. I just glued it in with CA glue and it has been working great.

Features

• Integrated PTFE guide M10-0.75 for ultra-low friction filament movement.
• Compatible with the original spool roller design (link above).
• Maintains the self-centering functionality while improving filament handling.
• Easy to print and install—no additional hardware required beyond the original model.
• Glue in place with CA glue or glue of choice.

Why Use This?

Heavy spools often create tension and uneven filament paths. By adding a PTFE guide, this minimizes resistance and helps prevent filament snags, ensuring consistent extrusion for long prints.

Print Settings

• Material: PETG recommended for durability.
• Layer Height: 0.2 mm
• Infill: 20–30%
• Supports: Not required for most printers.