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ShaneDelmore/instructions.md

Last active March 11, 2025 23:46
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Add fan and accel multipliers to Klipper/Mainsail
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instructions.md

Install klipper-virtual-pins

bash
cd ~
git clone https://github.com/pedrolamas/klipper-virtual-pins.git
./klipper-virtual-pins/install.sh

Add virtual pin to printer.cfg

[virtual_pins]

[output_pin fan_multiplier]
pin: virtual_pin:fan_multiplier
pwm: True
value: 1.0

Configure M106 to use fan_multiplier

[gcode_macro M106]
rename_existing: M106.1
gcode:
  {% set S = params.S|default(0)|int %}
  {% set P = params.P|default(0)|int %}
  {% set MULTIPLIER = printer['output_pin fan_multiplier'].value %}
  {% set ADJUSTED_S = (S * MULTIPLIER)|round(0)|int %}
  M106.1 P{P} S{ADJUSTED_S}
@ShaneDelmore
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ShaneDelmore commented Jan 15, 2025

If you want to get fancy you could add a moonraker hook to listen to changes to the factor pins and immediately recalculate fan speed and accel but I only use these when my sliced file is changing them rapidly so they get recalculated when those change pretty quickly anyway.

@ShaneDelmore
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ShaneDelmore commented Jan 15, 2025

This was tested on an FLSun T1 Pro running klipper 10. You may need slight changes on different versions of klipper or other printers but hopefully the idea is still helpful.

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