Ender 3 PTFE filament guide
thingiverse
Jonasen's filament guide is effective, but I've discovered that the version I printed tends to rub against the filament, resulting in an annoying squeak that was getting under my skin. To resolve this issue, I drew inspiration from the filament guide on my MPMD and created a revised version that incorporates some PTFE tubing for smoother operation.
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