0.25 nozzle with MMU3 + MK4? - User mods, enclosures, nozzles, ...

RE: 0.25 nozzle with MMU3 + MK4?

Rui Guerra — Mon, 15 Sep 2025 15:58:11 +0000

It looks like no one else has a clear answer to this (?)

RE: 0.25 nozzle with MMU3 + MK4?

SCMemphis — Sun, 07 Sep 2025 13:53:38 +0000

I wondering the same thing. I just ordered some .25mm nozzles to use with my MMU3 to try and print some better miniatures and wanted to make sure it will not be a uphill battle every time I try to print.

RE: 0.25 nozzle with MMU3 + MK4?

Rui Guerra — Sat, 19 Apr 2025 07:07:57 +0000

Posted by: @largriff
You can select 0.25 nozzle in settings-printer-extruder1. All extruders of course use the same nozzle size.

So that means no more nozzle size restrictions with MMU3? Is it now simple and trouble-free like using another nozzle without the MMU3 installed or are there any cons that I should be aware of?

I remember reading not long ago that one had to add/change some code to be able to use other nozzle dimensions with the MMU3 and some times there was some problems at printing time…

Thanks

RE: 0.25 nozzle with MMU3 + MK4?

LarGriff — Sat, 19 Apr 2025 06:24:41 +0000

You can select 0.25 nozzle in settings-printer-extruder1. All extruders of course use the same nozzle size.

0.25 nozzle with MMU3 + MK4?

Rui Guerra — Tue, 01 Apr 2025 15:38:23 +0000

Hi all,

I'm aware that when the MMU3 appeared the only nozzle that could be used with it was the 0.4.

But now, I wonder if it is already approved by Prusa that we can use other nozzles, specially the 0.25, for more detailed text in prints?

Thanks!