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MarlinFirmware / Marlin

Marlin is an optimized firmware for RepRap 3D printers based on the Arduino platform. Many commercial 3D printers come with Marlin installed. Check with your vendor if you need source code for your specific machine.
https://marlinfw.org
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[BUG] Extruder cooling fan not working #25178

Closed sanczess closed 1 year ago

sanczess commented 1 year ago

Did you test the latest bugfix-2.1.x code?

Yes, and the problem still exists.

Bug Description

Anycubic Kossel LP Trigorilla Board Ramps 1.4 EFB

Cooling Fan not working while heating up.

define E0_AUTO_FAN_PIN -1

define E1_AUTO_FAN_PIN -1

define E2_AUTO_FAN_PIN -1

define E3_AUTO_FAN_PIN -1

define E4_AUTO_FAN_PIN -1

define E5_AUTO_FAN_PIN -1

define E6_AUTO_FAN_PIN -1

define E7_AUTO_FAN_PIN -1

define CHAMBER_AUTO_FAN_PIN -1

define COOLER_AUTO_FAN_PIN -1

define EXTRUDER_AUTO_FAN_TEMPERATURE 50

define EXTRUDER_AUTO_FAN_SPEED 255 // 255 == full speed

define CHAMBER_AUTO_FAN_TEMPERATURE 30

define CHAMBER_AUTO_FAN_SPEED 255

define COOLER_AUTO_FAN_TEMPERATURE 18

define COOLER_AUTO_FAN_SPEED 255

fan works fantastically with older Marlin Version

When I set AUTO_FAN_PIN to "9" as Board Pinout shows- Error Compilation error: #error "You cannot set E0_AUTO_FAN_PIN equal to FAN_PIN."

Bug Timeline

first appeared with Marlin 2.1.2

Expected behavior

Cooling fan starts when heating up at 50°C

Actual behavior

Extruder Cooling fan doesnt react

Steps to Reproduce

No response

Version of Marlin Firmware

MArlin 2.1.x Bugfix

Printer model

Anycubic Kossel LP

Electronics

stock

Add-ons

No response

Bed Leveling

ABL 3-point

Your Slicer

Prusa Slicer

Host Software

Repetier Host

Don't forget to include

Additional information & file uploads

No response

ellensp commented 1 year ago

You need to #define E0_AUTO_FAN_PIN to the pin it is on.

No it cannot be fan_pin (9) That fan is the part cooling fan.

You have to have another pin that the fan is wired to

According to the stock example config https://github.com/MarlinFirmware/Configurations/blob/release-2.1.2/config/examples/delta/Anycubic/Kossel%20Linear%20Plus/Configuration_adv.h#L644

define E0_AUTO_FAN_PIN 44 // turn off extruder fan when it's temperature is above 50°C

This Issue Queue is for Marlin bug reports and development-related issues, and we prefer not to handle user-support questions here. (As noted on this page.) For best results getting help with configuration and troubleshooting, please use the following resources:

After seeking help from the community, if the consensus points to a bug in Marlin, then you should post a bug report.

github-actions[bot] commented 1 year ago

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.