LGX Lite - Filament Entry Sensor

Simple Sensor that allows you to detect filament entering the LGX-lite extruder. Useful when you are using a tool changer (Specifically the ERCF/ERCFv2 to detect the distance from the changer to the extruder.

It is also extremely useful when trying to detect filament run out before it leaves the extruder. 

BOM:
1x Micro-switch
2x M2x10 self tapping screws
1x 5.5mm Ball Bearing
1x ECAS Fitting 

Recommended Print Settings:
Voron Print Settings (0.2mm height, 4 Perimeters, 6 top, 5 bottom, 0.4mm Extrusion width)

Filament isn't impeded at all, and should easily glide through 
If you are having issues with tolerances being too tight, try with with a lower layer height. 

Notes:
Tested with Omron D2F, generic should work, but your mileage may vary
Tested on Voron Trident, works fine, but the clearance is tight
Not tested with extensive tool changes (still waiting for my MCU to arrive)
The Flat version should work with all versions of the LGX Lite, but the thick boy is theoretically better. 

Additionally, a post extruder microswitch filament sensor will be posted by me shortly. 

Please see this page about Filament Sensor Locations (and also support the project)
https://github.com/Enraged-Rabbit-Community/ERCF_v2/tree/master/Recommended_Options/Toolhead_Modifications