Creator Pro extruder fan issue

General Discussion
1

Basic Information:

Printer Model: FlashForge Creator Pro
MCU / Printerboard: Stock Mightyborad Rev D, with the 2560
klippy.log
klippy-2.log (1.4 MB)

Describe your issue:

Successfully flashed Kilpper onto the Mightyboard. Going through the Config Checks and verifying the heaters, I noticed that when the right extruder (defined as “extruder”) was heating, both extruder fans kicked on.
I let it cool down until the fans stopped, and when I heated the left extruder (defined as “extruder1”), neither fan turned on.

The printer.cfg file has both the extruders and both the extruder fans defined correctly, as far as I can tell, with the correct pin assignments according the schematic on Thingyverse for the Rev E board. I can’t find any documentation on my Rev D board to know whether the pins should be different. I’m guessing not based on the heater pins:

[extruder]
heater_pin: PH3
[heater_fan extruder_fan]
pin: PH4

[extruder1]
heater_pin: PB5
[heater_fan1 extruder1_fan]
pin: PB6

I’ve also tried specifically assigning the fan to the appropriate extruder by placing the “heater:” property in the “heater_fan1” section with no change in behavior.

Any help would be appreciated.
Thanks
Darryl

2

Hello @hoverdj !

You have to assign the extruder to the fan:
Also, you don’t have to give the 2nd heater fan a own name.

https://www.klipper3d.org/Config_Reference.html#heater_fan

1 Like
3

Perfect! It’s working now. I thought I tried that and didn’t work. I must have fat-fingerd something because it’s working now.

Thanks for the quick response.
Darryl

1 Like