Top Mount Filament Runout Sensor for Voron V2/Trident

Top Mount Filament Runout Sensor

Designed this for my Voron 2.4. I use a top mount spool holder feeding down the back of the machine. See my other designs for the spool holder.

Designed for a Roller Microswitch / generic Omron SS-5GL2 - https://www.amazon.com/gp/product/B00MFRMFS6 (this is the one I used) - https://www.digikey.com/en/products/detail/omron-electronics-inc-emc-div/SS-5GL2/137204 - https://www.aliexpress.us/item/2255800292331336.html (Search result, seller not validated)

4MM OD PTFE Interference fit

You may need to slightly bend the roller switch arm. It should not be triggered when empty.

Wiring: I use the 'NO' (normal open) contact setup on an endstop pin My wiring runs on the outside back panel of the machine with some adhesive wire clips I use a microfit connecter roughly 3" or 75mm from the roller switch Any AWG wire suitable for the connectors is fine.

My Klipper Config:

[filament_switch_sensor my_sensor] pause_on_runout: True event_delay: 3.0 pause_delay: 0.5 switch_pin: !PG12 #Adjust this for your board

Yes - there is no cover

I use the included PAUSE / RESUME macros for mainsail

BOM (1) ~25mm PTFE top guide tube length (1) SS-5GL2 Micro roller switch (2) M2x10 self tapping screws (2) M3x8 SHCS for mounting (2) M3 20x20 T Nuts for mounting Appropriate wire length and connectors for your setup. Available Endstop port on the controller board Zip ties and wire management