This is a holder for Bigtreetechs Smart Filament Sensor:
https://www.biqu.equipment/de/products/btt-sfs-v1-0-smart-filament-sensor-detection-stuck-blocking-filament-module
I dislike the idea to put it between extruder and hotend on my Ender 3 Pro. Instead I installed it before the extruder and use it also as filament guide.
The holder is simply push on and you can use the screws provided with the sensor to screw it on. The short PTFE tube will guide the filament beside the Z-rod.
This version matches the increased height of the familar Dual Gear Extruder e.g.: https://www.youtube.com/watch?v=PViMSuYmEXI
It is also reinforced compared to my first version for the Ender 3 stock extruder:
https://www.prusaprinters.org/de/prints/104893-smart-filament-sensor-holder-for-ender-3-pro
Note: This version is not compatible with the Ender 3 stock extruder, since the filament output would be around 9 mm to high!
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