Is there a way to power a 40mm 5V fan with the PSU?
As title says, I'm building an enclosure for my Mk4, I'd like to keep the PSU in the enclosure, but separated from the printer by a different compartment and I was thinking I'd have a 40mm fan supplying fresh air from outside the enclosure into the compartment to help keep the PSU cool. So I was wondering, other than plugging the fan to a wall outlet, would there be a way to power it via the PSU? How about by using a relay or the Printer control board?
Any ideas would be awesome!
p.s. I'm not using the Prusa enclosure, building one from scratch due to space limits
RE:
Yes, look for: buck converter (alieexpress or amazon). 24 volt -> 5 volt
We will do what we have always done. We will find hope in the impossible.
RE: Is there a way to power a 40mm 5V fan with the PSU?
Oh nice, and how would I wire it up? use the same plugs on the PSU for the heaters? Would the converter turn on only when the printer is on?
RE: Is there a way to power a 40mm 5V fan with the PSU?
Why a 5V fan ?.. Even if you have one of these already, I think it's easier to purchase a 24V fan and connect it directly to the 24V outlets of the PSU.
RE: Is there a way to power a 40mm 5V fan with the PSU?
in that case, would the fan be going at full speed at all times?
RE: Is there a way to power a 40mm 5V fan with the PSU?
in that case, would the fan be going at full speed at all times?
An option is to connect to the output of the PSU (or input same wires on the board). That will have continu 24 Volt as long printer is on.
I would suggest another approach. I suppose you have already the 5V fan?
- find yourself on ordinary USB (old smartphone charger, etcetera, anything with 5V goes).
- buy a W1209 thermostat https://www.amazon.com/w1209/s?k=w1209 (attention choose the correct voltage!)
- connect the power wires of the charger to the W1209 + to the relay on the W1209 + fan.
And you have a perfect solution. Mine is set to about 27 degrees Celsius. As soon this temp is reached the fan runs as long it is needed.
We will do what we have always done. We will find hope in the impossible.