4 pin Part cooling Fan not turning on.
I have a vcore 3.1 with eva 2.0 head. I uncommented the 4 pin fan header for the part cooling fan in both 25khz and 100hz but nothing. I have a manta m8p v1.1 and its connected to fan5
Solution:Jump to solution
move
[include RatOS/4pin-fans/part-cooling-fan-25khz.cfg] to your user overrides section. Because when you use a toolboard it assumes that you will use the toolboard for the fan34 Replies
What is connected to fan5? Blue wire or red and black?
I have blue, white, red, black. I just swapped from a jst connector to a dupont thinking that was my mistake but it still isn't working.
I extended the wires from the fan to the board and soldered the wires together instead of crimping.
That is the Manta 8 v1.0 board, you want the 1.1 https://os.ratrig.com/docs/boards/btt/manta-m8p-11
thats how I have it and no action.
you probably swapped t he pwm and tach wires
check you fans datasheet
does it know that I have it connected to the MCU not the toolhead since I run an ebb42?
I have a back up 4028 2 pin incase I cant figure this out. Are four wire fans worth the hassle?
If you don't include the toolboard fan configs, then yes.
yes
How do you know which is which here, you've used 2 identical wire colors.
post your printer.cfg
I knew you would ask. I traced it back twice to confirm my order is correct. If you zoom in you see the two red wires and two black wires are different. Thats all I had. here is the connections
darker slightly thinner red wire = Blue PWR, thinner solid black = white tach, thicker red wire = VIN, and the thicker black/red wire = Ground
aight that looks correct then
Then prolly just a matter of config 🙂
this is the only change I have made in the config
give us the full printer.cfg
I just download it from klipper?
Solution
move
[include RatOS/4pin-fans/part-cooling-fan-25khz.cfg] to your user overrides section. Because when you use a toolboard it assumes that you will use the toolboard for the fanlike this?
that worked!!!!!!
wow this thing is powerful and loud!
I should probably redo my PID calibration as this should change things up a bit. You guys are awesome!!! Thank you
Could I ask for another question while I have the help. If you see on my last image I uncommented the max accel to decel because I was getting an error with that line commented but I was following ratrig documentation. I uncommented it for now until I fix it.
Also does it matter that I have the EBB42 with the adxl in the vertical mounting position?
Klipper renamed that variable I believe
@Cruz
max_accel_to_decel does not exist anymore.
noDam forgot to update that in the vc3.1
yeah youre throwing us new guys off 😅
I don't see the "skew" section either for that calibration in the printer config
variable name is the same, just add it to printer.cfg under
[gcode_macro RatOS]