Install Guide for Ender 3 V2 Filament Runout Sensor
Install Time: 20-30 Minutes
Mount Installation:
Other mounting options[Top Mount - for direct drive]: https://www.thingiverse.com/thing:4878713
The product included bracket which replaces stock original left hand sided Extruder Mounting Plate as shown in below photo. It best to removed the X gantry and replaced the bracket while not attached on z axis rod.
Remove the three bolt as shown below and reinstall the provided back plate. [If you find you a bolt instead of nut, please head further down for guide to find hidden nut]
If you find you have a bolt instead of three nut as shown in below photo, you may need to remove the whole plate from X extrusions as shown in below photo removing the 2 bolts[Square Box] and reveling the hidden bolt.
Cable Installation:
Plug the header with sticker into filament sensor.
Plug the unlabeled plug directly into motherboard. On a stock Ender 3 V2 board it should be between hotend wire and x axis limit. It should only go in one way, as it keyed connector.
Firmware:
Marlin Firmware:
Once everything is plugged back, you will need to update motherboard firmware.
You will need to flash updated firmware to ensure filament runout is functional. Official firmware source https://www.creality.com/download/
https://www.crealitycloud.com/software-firmware/firmware?type=2
Ender 3 Neo: https://www.creality.com/pages/download-ender-3-neo
Ender 3 V2 Neo: Coming Soon
There is 2 version, please download and install the applicable mainboard hardware revision 4.2.7 or 4.2.2 board.
Example:
Ender-3 V2-Marlin-2.0.1-HW-4.2.7-mainboard-V1.1.2-compatible with BLTouch and filament detection.zip
Ender-3 V2-Marlin-2.0.1-HW-4.2.2-mainboard-V1.1.2-Compatible with BLTouch and filament detection.zip
Klipper Firmware: [Depending on which board version, https://klipper.discourse.group/t/creality-board-4-2-2-and-4-2-7-schematics/3104], also depending on your pause command you may need to update according.
[filament_switch_sensor RunoutSensor] pause_on_runout: False runout_gcode: PAUSE insert_gcode: RESUME switch_pin: !PC6
If you need assistance with Bigtreetech firmware, please contact us as it varied between boards and printers.
Firmware Install Video:
Final Note:
Once everything is backed and running again, re-level bed and preform initial test print.
Other Notes:
The filament sensor should light up blue when a filament is feed through it.
Note: Please avoid pulling filament out the opposite direction, in rare cases it may result in limit switch to dislodge on certain units or you can print and install this simple filament mod below.
3D Printed Part: https://www.thingiverse.com/thing:4892258
Was this article helpful?
That’s Great!
Thank you for your feedback
Sorry! We couldn't be helpful
Thank you for your feedback
Feedback sent
We appreciate your effort and will try to fix the article