Unknown pin chip name 'multi_pin'
Good Day. I have 2 blower part cool fans [fan] connected to two different ports. So it makes sense to setup a multi_pin. Here is my code:
[multi_pin dual_blower_fan]
pins: toolboard_t0:PA0, toolboard_t0:PA1
[fan]
pin = multi_pin:dual_blower_fan
kick_start_time: 0.5
cycle_time: 0.00004 # ≈25 kHz PWM frequency
ive tried also pin: multi_pin:dual_blower_fan
But I get this error:
Unknown pin chip name 'multi_pin'
Any help would be greatly appreciated.
Solution:Jump to solution
For part cooling. I just crimped two both fans to 1 header. Not worth my time tryibf to get both ports working with part cooling
12 Replies
The only thing I'm finding so far is that you need to declare the multi_pin first, but it seems you already did that. Can you drop your printer.cfg in here?
maybe i need some sort of include?

Weird. What I'm able to find in the docs says this should work just fine. Drop your debug.zip in here, maybe the error message has more info like exactly what line it's having trouble with
Hello where and how do i generate the debug.zip?
i only have these 3 options under log files:

Its under the configurator tab. You're using Ratos 2.1 right?
Thank. Yes the latest of all softwares and updates. EBB42 and SKRAT
okay, the klippy.log shows the multipin definition coming after it is being used. I am wondering how klipper treats includes and overrides, if the section remains where it was first imported but then the definitions within get overridden by later editions.
Try putting
before the '
[include RatOS.cfg] part.
I worry that you'll still get an error like "toolboard_t0 not defined" thoughNo that did not work.
I asked AI and it looks like the EBB42 does not support multi_pin for the [fan].
so i will probably have to add it in, recompile it myself, update config files and then reflash. But I don't think i want to go down that path. I might as well ditch RatOS and do vanilla klipper. I'll think about doing that once i'm compelted my Voron build
Solution
For part cooling. I just crimped two both fans to 1 header. Not worth my time tryibf to get both ports working with part cooling