BIGTREETECH Smart Filament Sensor V2.0 on a sv08

BIGTREETECH Smart Filament Sensor V2.0 Installation Guide for SV08

This guide explains how to replace the original filament sensor on the SV08 with the BIGTREETECH Smart Filament Sensor V2.0.

Advantages

The BIGTREETECH Smart Filament Sensor V2.0 offers the following benefits:

• Detects filament runout
• Identifies clogged nozzles
• Detects filament leaks
• Recognizes "tangled" filament
• Identifies extruder malfunctions or disturbances

Installation Guide

1. Wire the sensor: Only connect the encoder as shown in the image btt_v2_wire.jpg. The image shows the original connector with the clamping side facing up or the locking tab facing upwards.
2. Edit the printer.cfg file:

Remove the original section:

[filament_switch_sensor filament_sensor]
pause_on_runout: True
event_delay: 3.0
pause_delay: 0.5
switch_pin: PE9

Replace it with:

[filament_motion_sensor encoder_sensor]
switch_pin: PE9
detection_length: 6.0
extruder: extruder
pause_on_runout: False
runout_gcode:
  PAUSE
  M117 Filament encoder runout
insert_gcode:
  M117 Filament encoder inserted

Note: The detection_length can be adjusted as desired. The value above is the original setting.

Edit the macro.cfg file: Open the macro.cfg file and replace all instances of filament_switch_sensor filament_sensor with filament_motion_sensor encoder_sensor.

Restart your printer, and you're done!