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Universal Reverse Bowden Filament Sensor (URBFS) — image 1
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Universal Reverse Bowden Filament Sensor (URBFS)

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A simple Universal Filament sensor for Reverse bowden.

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Model information

Category
Accessories
License
GNU General Public License v3.0

I was missing a filament sensor on my Ender 3 Pro, and I had the Awesome Filament sensor from MapleLeafMakers on my V0, so decided to remix it, and make it more universal. 

A Big Credit to Andre!

BOM :

 

  • Omron D2F-L (Important it's an L! = Lever piece)
  • wire
  • jst-xh plug or similar (depends on your Mainboard) 
  • 2x m2x10 self tapping screws
  • 1x 6x3mm magnet
  • 2x m3x8 BHCS
  • 2x m3 t-nuts
  • a little heat shrink
  • a solder iron (soldering the wires to the switch) 

 

I cannot provide any useful configuration for Marlin, as i run klipper on my machines. 
 

  • Simply put following in to your Printer.cfg : 

[filament_switch_sensor filament_sensor]
switch_pin: #INSERT YOUR CORRECT PIN HERE#
pause_on_runout: True
insert_gcode:
   M117 Insert Detected
runout_gcode:
   M117 Runout Detected
  • in your Print_Start Macro put following: 
SET_FILAMENT_SENSOR SENSOR=filament_sensor ENABLE=1
  • in your Print_End Macro put following : 
SET_FILAMENT_SENSOR SENSOR=filament_sensor ENABLE=0

 

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