search

bigtreetech / BIGTREETECH-SKR-mini-E3

BIGTREETECH SKR-mini-E3 motherboard is a ultra-quiet, low-power, high-quality 3D printing machine control board. It is launched by the 3D printing team of Shenzhen BIGTREE technology co., LTD. This board is specially tailored for Ender 3 printer, perfectly replacing the original Ender3 printer motherboard.
2.01k stars 1.97k forks source link

Could the extruder and mobo fans be slowed down? (Fan1 and the other) #55

Closed Chak10 closed 4 years ago

Chak10 commented 4 years ago

The noise is much higher than the stock, perhaps reducing speed would be better. Screenshot (9)

bojanpotocnik commented 4 years ago

Unfortunately not as both are connected to the 24 V power supply directly. BTT SKR mini E3 V1 2sch pdf

You can, however, add the resistor in series with the fan (the same as it is inside the "Noctua low-noise adaptor". Be careful to size it properly according to the fan current consumption. image

Chak10 commented 4 years ago

@bojanpotocnik Thanks for the reply. I was thinking of using two potentiometers.

ManiRX100 commented 4 years ago

Hi Sorry for commenting on the closed issue. The fans are too noisy. Is it possible to use the below PWM marlin codes to slow down the fan? //#define FAN_MIN_PWM 50 //#define FAN_MAX_PWM 128 These are commented out in configuration_adv.h. Or its not at all possible as the fans are connected to 24V supply directly ?