it works great…… if your filament is perfectly straight. Which certainly won't be the case when you're printing with a 80% spent spool that wraps around like old telephone cords.
Too much friction between the sensor and the fliament could potentially lead to underextrusion.
The Case is almost exactly the same as original, except for two:
I've also made a Mount that lets you attatch the sensor on the frame for direct drive extruders.
The author marked this model as their own original creation.