Ender 3 Roller Filament Guide
thingiverse
Roller Guide Upgrade for Ender 3: Boosting Filament Flow Efficiency. The static guide I previously used led to filament wear, causing a groove that trapped the material and resulted in print failures. In contrast, this roller design allows for effortless replacement if it becomes worn, eliminating downtime and ensuring uninterrupted printing. Use 1.75mm diameter filament as the axle for optimal performance.
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