Highly Constrained - All in one - Filament path for the Snapmaker U1
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Replaces both Filament runout sensor and Extruder Gear back plate to highly constrain the filament entrance/exit paths.
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Informacje o modelu
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- Printables
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- Other Printer Parts & Upgrades
- Licencja
- Creative Commons — Attribution
Some of the Snapmaker U1 extruders shipped with a very unconstrained filament path, especially near the filament runout sensor. This made printing very soft shore-hardness TPU tricky, causing extruder jams, or allowing filament to escape above the extruder gears. See this Reddit Post for more details
This model is an 'all in one drop in replacement' which more fully constrains the filaments entrance and exit paths through the extruder gears, minimizing the chance that filament can 'escape'.
It replaces both the filament runout sensor (upper portion), and the extruder gear back plate (bottom portion).
Print Settings:
Print with 5 perimeters, in ABS/ASA if possible (PLA may creep over time) - with supports enabled.
Runout Sensor:
You will need to remove the runout sensor magnetic arm, spring, and mounting pin. This is not easy! You will need to push the pin out of the old sensor with a 1.5mm object, tweezers or small hex wrench will do the trick, but be careful! I stabbed myself pretty badly in not 1 but 2 fingers while updating all of my extruders...
Reassembly is much easer! Place the magnetic arm on the pin (magnet side up), then the spring with the small leg on top of the magnetic arm, then press the pin into the assembly.
Slide the long leg of the spring into the small hole on the side of the new housing, you might need some tweezers to guide it into place.
Fiddly, but doable!