upgraded noctua fan and gantry printer says error heating up

[scenic panther]

So I upgraded my gantry and cooling fan to a noctua one on my voxelab Aquila and now it errors out and says could not heat up please restart printer

[versed sparrow]

Have you checked your thermistor and heat block are working?

[scenic panther]

Yup everything works fine if I remove my noctua fan

[sharp hull]

did you make sure to match the fan voltage to your printers voltage?

some printers run at 24v and require 24v fans

[versed sparrow]

It sounds like the fan is running, just a little too well. Does the Aquila run Marlin?

[scenic panther]

I looked around for 40x40x10 for noctua and can’t find in 24v

[sharp hull]

does your printer use 24v though?

[scenic panther]

Yup but the fan isn’t on a header just from the boards power

[scenic panther]

Yup

[sharp hull]

you should not use that fan then without a buck converter or something

you're just going to kill it

[scenic panther]

Right now I’m using it on a different power supply and actual 12v one

[sharp hull]

wait

[versed sparrow]

Well my suggestion won't work then

[sharp hull]

the fan isn't at all connected to the printer electronically?

[scenic panther]

Not anymore

And sometimes it says it still

[sharp hull]

is this to cool your hot end or part cooling?

[scenic panther]

Hotend

It runs on the 24v circuit but at a higher rpm

[versed sparrow]

24/12v buck converters are cheap

[sharp hull]

I thought you were powering it seperately?

[scenic panther]

I am now

[sharp hull]

or are you running it at 24v on a different PSU?

I am really confused lmao

[scenic panther]

I was running off the psu and now on a different power adapter

[sharp hull]

was that a solution to your problem or is that the reason you're having a problem?

[scenic panther]

It seems to be working at the moment but it will occasionally say could not heat up

[versed sparrow]

Your ideal solution would be a buck converter, and then Marlin will be able to control the fan speed

[sharp hull]

while the fan is running on the separate PSU it still throws the error intermittently?

[versed sparrow]

#define E0_AUTO_FAN_PIN -1 // change '-1' to pin that fan is wired to #define EXTRUDER_AUTO_FAN_TEMPERATURE 50 #define EXTRUDER_AUTO_FAN_SPEED 255 // 255 == full spee

[scenic panther]

Yup

[versed sparrow]

(in config_advanced)

[sharp hull]

and it also was throwing the error while you powered the fan off the printers PSU?

[scenic panther]

It’s on a power positive and negative not a header

[versed sparrow]

Well if you get an adjustable buck converter, you'll be able to undervolt the fan to slow it down a bit

You could also try a PID tune

[scenic panther]

My print is almost done I can send a picture of the motherboard

[versed sparrow]

Actually, have you done a PID tune since using the fan?

[sharp hull]

But was it throwing the error when you had the fan running off the printers PSU as well?

I'm not convinced the fan has anything to do with your issue

[scenic panther]

Did auto tuning nothing changed

Ran it like 10 times

Runs off of those

I have a voxelab Aquila and running Alex’s firmware

With bl touch 9x9 abl

[versed sparrow]

You are currently successfully printing, though?

[scenic panther]

It’s a 50/50 on if it will heat up correctly or not

[versed sparrow]

But once it heats up, it's good?

[scenic panther]

I have found a buck converter

[sharp hull]

Why do you think it's the fan that's causing the issue, if you plug your old fan back in, does the issue go away?

[scenic panther]

Yup

[sharp hull]

and if you run the fan off the printers PSU, does the error get thrown?

[scenic panther]

Yup

[sharp hull]

and then when you swap the fan to a separate PSU, the error continues to be thrown?

[scenic panther]

Sometimes but not as often

[sharp hull]

okay so why not just plug the old fan back in

lay it to the side

run the new fan off the seperate PSU

and go back to printing normally until you can get the buck converter correctly installed

if it is truly the fan causing the issue, the buck converter might help

otherwise you might have a bunk fan

idk, that's really odd that the fan is appearing to be the cause

[versed sparrow]

My feeling is that the fan is too powerful, and can prevent the hotend from heating up.

[scenic panther]

Currently working on th buck converter

[scenic panther]

That’s what I was thinking

Didn’t want to blow up my primary and do random stuff 🤣

[versed sparrow]

It would be interesting to see a temperature graph of heating with the old fan vs the new fan

[scenic panther]

I have octoprint

[versed sparrow]

You could also have a look at tweaking the duct so the hotend fan doesn't blow onto the heat block

And/or insulate the hotend or nozzle. Got any kapton tape?

[scenic panther]

I do but I got a silicone sock on it

[versed sparrow]

Huh.

I reckon it'd be handy to check that temp graph

[versed sparrow]

It's odd that it works sometimes.

[scenic panther]

Buck converter should work

[versed sparrow]

Cool, let us know.

[scenic panther]

Gotta wait till Tuesday for a buck converter

[scenic panther]

Now I have it on a 9v and it’s still saying it

[versed sparrow]

What's that temperature graph looking like?

[scenic panther]

Got help elsewhere they said low pid set it from 5 to 25

[scenic panther]

Still hasn’t fixed it

[sharp hull]

They told you to manually adjust your PID settings??

You should never do that

[scenic panther]

Just the fan value one

[sharp hull]

yeah no never do that lol

whatever your PID autotune sets it to is what you should leave it at

especially since it had no effect on the issue you're having

[scenic panther]

What should I do to fix my problem?

[sharp hull]

I’d try different fans outside of the stock fan and noctua fan to see what’s really causing the issue. Isolate the variables so you at least know for sure what’s causing the issue

[scenic panther]

Got the buck converter

Installed and still no difference

[sharp hull]

Have you done any testing with a third fan yet?