NexGen3D: Creality K2 - K2 Pro - K2 Plus Extruder Couple Fix
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Simple brace to mount an M10 4mm PTFE Tube Couple
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- Printables
- Kategoria
- Creality Parts & Upgrades
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- Creative Commons — Attribution — Noncommercial
After buying K2 Pro and finding out that there is a ridiculous amount of stress placed on the stock couple being applied by the filament buffer and the CFS, I decided to fix the problem properly.
I found someone had already started this fix, so I leveraged their work and added strength, made it lighter and optimised it for printing without supports.
Please print in this orientation:

BOM:
2 x M2 Threaded Inserts
2 x M2 x 15mm Bolts
1 x M3 x 30mm Bolt
1 x M3 x 40mm Bolt
1 x 10mm PTFE Couple
Print from ABS or ABS-CF/GF for best results, I also cut the cover a little so it can be re-fitted, this is not really needed, but I like the look of it, so I trimmed it a little with a Dremel tool.