Have a fan to help cool steppers on my Manta M8P, upon stepper activation, voltage to appropriate fan pin is applied and the fan runs. Issue here is that I want the fan to run for 300 seconds after the last stepper in the list (all of them) is idle. However, the actual behavior is that the fan imm…

Thank you @Sineos and I did read that article prior to making my post…however I still am at a loss. I have no other [idle_timeout] specified in my printer.cfg, thus no global timeout that would be overriding the specific timeout for my controller_fan.

You’ve misconfigured the fan if you want it to remain on for 300 seconds after your steppers are disabled. Either delete the idle_speed setting, or change it to a non zero value. The purpose of that setting is to allow a different fan speed during the idle timeout, not to turn the fan off after the …

Thank you for the input! However, I already tried this: [controller_fan stepper_cooling] pin: PE5 # Fan3 fan_speed: 1.0 idle_timeout: 300 idle_speed: 0.6 stepper: stepper_x, stepper_y, stepper_z, stepper_z1, stepper_z2, extruder And the fan still turns off i…

Please upload a log file with this configuration when you had this issue.

klippy.log (314.2 KB) Here is the log…hopefully that is the one you need, if not please let me know.

Did you restart Klipper after making the change? This what is in your log: [controller_fan stepper_cooling] pin = PE5 fan_speed = 1.0 idle_timeout = 300 idle_speed = 0.0 stepper = stepper_x, stepper_y, stepper_z, stepper_z1, stepper_z2, extruder

Strange…Yes did several restarts after making the change to: [stepper] Did a full shutdown/restart and now the fan runs for the 300 seconds after the last stepper was inactive. THANK YOU for your time and assistance!

CONTROLLER_FAN not obeying idle_timeout

General Discussion

Sineos March 6, 2023, 9:52pm 2

See Is this a bug ? idle_timeout / controller_fan - #2 by Sineos

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CONTROLLER_FAN not obeying idle_timeout

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