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MMU3 PTFE Tensioner
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Increases friction by compressing a section of the PTFE tube. Useful if you have auto rewind spools and no buffer.
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Model information
- Source
- Printables
- Category
- Prusa Parts & Upgrades
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
Requires M3 fasteners and fits 4mm OD tubing very snug. Slightly adjust screw depth to achieve desired friction level. Recommend placing an inch or so before the MMU3 inlets and using needle nose plyers to hold the clamp when trying to start the screws (see images).
Why was this made?
- Keeps the autorewind spool holders from sucking the filament out of where the MMU3 can grab it. The MMU3 and nextruder add slight texture to the filament which on its own will not slip past the clamped region.
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