Disable to Loud enclosure fan Sovol Zero

Sovol Zero
1

How can I disable or control the enclosure fan?..can it be done thru Klipper/Fluidd?

I do not it to run…it is very loud.

Thanks in advance for comment/reply

2

That’s the “[temperature_fan exhaust_fan]” which is configured to reach a target temperature. You can set this directly on the display, in Klipper or change printer.cfg:

[temperature_fan exhaust_fan]
…
target_temp: 40
…

3

You could also reduce the maximum fan speed (all the way to 0 of you want) by editing your printer.cfg file.

Open it in Fluidd and scroll down until you find this section:

[temperature_fan exhaust_fan]  
pin: PB0                      
sensor_type: EPCOS 100K B57560G104F
sensor_pin: PC4
max_power: 0.8                  
shutdown_speed: 0   
kick_start_time: 0.5
cycle_time: 0.01
off_below: 0.1
min_temp: 0                     
max_temp: 70                 
target_temp: 30   
max_delta: 1.0
control: watermark
gcode_id: D
tachometer_pin: PB1
tachometer_ppr: 1
tachometer_poll_interval: 0.0046

Edit max_power as you please.

Note: you are setting a PWM constraint. 0.2 = 20% and is typically about the point where most fans fail to start turning. Setting a low, non zero, value that won’t start the fan spinning will eventually ruin the fan

4

Since this is the part cooling fan, you might not want to disable it…JMO

5

As mentioned, this is for enclosure, not part cooling.

Anyway managed to increase the activation temp to 90C ..fan doesn’t dun till enclosure temp is above 90C

6

90°C is quite hot for a chamber temp, and beyond the 80°C max specified in the stock configuration.

I can understand “just setting the chamber so hot the fan its effectively disabled”, because the exhaust_fan is so loud But is 90°C really what your filament material wants? I admit my experience with high temp filaments is limited.

You may be interested in the exhaust_fan modifications I just posted in Quiet Exhaust Fan with Propotional Control!