Snapmaker U1 Filament Sensor Housing – Smooth Loading Remix (WIP)
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Optimized sensor housing for the U1: Smooth, rounded internal edges for hassle-free feeding of TPU and stiff filaments.
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Model information
- Source
- Printables
- Category
- Other Printer Parts & Upgrades
- License
- GNU General Public License v3.0
A remix of the model by Evgeny Sluzhaev (Евгений Служаев), who expanded Cheeky_b52's original extruder cover with this modified filament sensor housing.
The Problem: The base model of the sensor housing already does an excellent job of constraining the filament path after the sensor and centering the material for the extruder gears – an absolute must for printing TPU. However, when printing this part with high precision (like I did using MJF), a practical issue emerges: the filament tends to catch and get stuck on tiny, hard inner edges during insertion. This is annoying not only during automated loading (which is best avoided with TPU anyway) but also noticeably disrupts manual feeding – for both flexible and stiff filaments alike.
Current Status: Work in Progress (WIP) Please note: I have just finished modifying the CAD design and am currently waiting for my new parts to be printed. This updated version is physically untested as of right now. However, based on the geometry changes, I fully expect the filament to glide smoothly along the housing walls and slip directly into the gears without snagging. Print at your own risk and feel free to leave feedback!