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Frix-x / klippain

Generic Klipper configuration for 3D printers
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exhaust_filter is running when it shouldn't #599

Closed kgalilio closed 1 week ago

kgalilio commented 2 months ago

Klippain branch

Version

v4.3.1-11-g4ff6f5b4

Describe the bug and expected behavior

The exhaust_filter is supposed to regulate the chamber temperature to a target temperature and/or filter the exhaust air after a print has finished. In my case, as soon as I sat the bed temperature to 100 degrees, the exhaust fan started working, and I had no control over it. I tried bed and chamber soak too, but I kept getting the same result. This prolongs the heatsoak duration.

Additional information and klippy.log

No response

24naret commented 2 months ago

Hello, wanted to say the same as a feature request. I understand that there are users who don't have a dedicated filter so they want the fan on constantly but I only want it to control temperature.

Maybe a chamber_temperature_fan.cfg besides the exhaust_filter one.

This snippet from my overrides can be used as a base and as workaround for the time being for ticket creator [temperature_fan chamber] pin: <FAn_PIN> max_power: 1.0 shutdown_speed: 0.0 kick_start_time: 0.2 sensor_type: ATC Semitec 104GT-2 sensor_pin: <pin_name_chamber_temp> min_temp: 0 max_temp: 70 target_temp: 0 max_speed: 0.7 min_speed: 0.1 control: watermark max_delta=3.0 gcode_id: C

Surion79 commented 1 month ago

@24naret please create a Feature Request instead of hijacking a similar sounding issue. You can also create an own PR with your idea :)

Surion79 commented 1 month ago

@kgalilio the exhaust fan is a filter fan which is used to have a low underpressure in the chamber so that the fumes are going through the filter instead of siphoning through other holes etc. therefore it must run all the time. It is not a temperature regulator. If you need a chamber heating regulator, you would need something like ellis bedfan or multipurpose the nevermore filter, which have an innnerchamber circulation air flow.

github-actions[bot] commented 3 weeks ago

📌 This issue has been marked as stale because it has not had activity in the past 30 days. To keep it open, please respond to this message or add new information. Otherwise, this will be closed in 14 days. Thank you for your contributions!

github-actions[bot] commented 1 week ago

This issue was closed due to inactivity for 14 days. Feel free to reopen it if you think it was an error or if you have new information or progress to share