Optical filament runout sensor

The stock runout sensor that uses a spring and some bearings got too much resistance, and limited my extruding capability! so I made this optical version, that's smoother, lined to the teeth with ptfe tubing

Very “clear” shortcoming includes: not able to detect clear (pun intended) filaments in it's path

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Features:
- 4 Different variants for wide variety of couplers
- 2 LED output paths to be able to see the indicator, everywhere!
- Lined with ptfe for as smooth of a filament path as possible
- Uses a widely available optical endstop sensor

NOTE:
- Not able to detect clear filaments
- For neptune users, you have to cross the 2 outer wires for it to work
- For other users, the pinout is written on the pcb, wire after it

Recommended print settings:
- Nozzle diameter: 0.4mm
- Layer height: ≤ 0.2mm
- Reverse on odd: disabled
- Precise walls: enabled
- Wall order: i/o/i
- Tolerance requirement: 0.1mm
- Print orientation: as imported
- Supports: included with the model, enable support generation and change to manual placement, don't add anything

Recommended materials:
- PETG
- ABS/ASA

Installation requires:
- 2 * PC4-M10/ECAS04
- 2-3 * M3-14mm/16mm (Watch installation guide)
- 3* M3 (Maximum 4mm long) heatset inserts
- 4mm OD PTFE tubing
- Lerdge optical endstop

Installation guide:
- ECAS04
- PC4-M10
- UBBI/UBBI-ECAS04

Changelog: