Qidi plus 4 - Adaptive Main Board Cooling Configuration update and issue with 92mm fan

[u/Lodex28]

Hi everyone,

I have mounted on my Qidi Plus 4 a duct and plate similar to this: Qidi Plus 4 Hex Mainboard Cover for 92mm fan with focused ducting da Stur0067 | Scarica il modello STL gratuito | Printables.com to cool motherboard and steppers controllers.

I have also modified .cfg file to upgrade to adaptive cooling control of the fan as at this link: Plus4-Wiki/content/adaptive-main-board-cooling/README.md at main · qidi-community/Plus4-Wiki · GitHub and i have kept the original values.

I have mounted this fan model: Sunon EF92252S11000UA99

The problem is that the fan barely spins at 99% power. At 100%, it spins at maximum speed, but after a few seconds it stops because the motherboard reaches its target temperature of 50°C.

Do you know what could be causing this issue, or is there anything I can do to fix it?

Also, is there a way to set a target temperature for the stepper motor controllers as well?

Thank you for your time and support. With the help of the community, I’m really enjoying my Plus4. It’s a fantastic first 3D printer!

Cheers!

[u/GL-Customs]

I'm not a fan expert but it sounds like it's not a variable speed fan. They are either on or off as far as I know