Replacing fans with Noctua
Hi Hi,
I would like to replace both fans with Noctune and completely redo the Hotend.
something like: 
But I don't know which one I can use if 4-pin PWM or 3-pin
thanks.
RE: Replacing fans with Noctua
3 pin
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
RE: Replacing fans with Noctua
Thank you, I'm trying to search here on the forum and elsewhere, if anyone has similar projects, please send them here 🙂
RE: Replacing fans with Noctua
do Noctua do a turbine fan?
you may need to use the hidden experimental menu in the prusa knowledge base
unfortunately I cant find the link at the moment
joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
RE: Replacing fans with Noctua
https://help.prusa3d.com/article/experimental-menu-mk3-s-_161213
RE: Replacing fans with Noctua
Replacing fans with Noctua
Not a good idea...
Because the Hotend cooling fan already is from Noctua, as stated by Prusa in the article linked above.
Keep the blades of the fan clean from dust and filament stringing and it is sufficient to cool the hotend.
For the part cooling fan, a Noctua axial fan creates much less pressure than the stock radial fan, so part cooling would be worse.
Noctua does not offer radial fans.
RE: Replacing fans with Noctua
I made the mistake of upgrading the Noctua side fan with an A4x20, which shortens the x-axis (reduces the range of gantry travel) by the ~1cm difference in thickness, which means the printer can no longer calibrate itself :/
i'm sure i could deep-dive the forums and figure out how to home on a different limit but ultimately it's a waste to lose print bed real estate.