hardened nozzles with the mmu2s  

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wpegden
(@wpegden)
Trusted Member

I have the mk3s/mmu2s working quite well now, so I'm ready to make things more complicated.

I'm planning on printing multicolor prints with glow-in-the-dark pla (from solutech).

 

I understand this can be surprisingly abrasive so I am considering getting a harder nozzle; perhaps the dyze tungsten carbide nozzle.  I would ideally like to have a one-nozzle-for-everything solution so that I don't have to frequently recalibrate my live-z (on both sheets!).

I'm wondering if anyone has experience with this in the MMU2S context.  My understanding is that even with the tungsten carbide, people often have to raise their temps by 5 degrees or so.  Should I expect to have a bunch of annoying problems with tips after adjusting the temperature for good printing?

thanks!

Posted : 18/01/2020 8:18 pm
wpegden
(@wpegden)
Trusted Member

Is no one here using the MMU2s with a hardened nozzle?   In that case I may just get some spare brass nozzles and plan to swap frequently when using abrasives.  🙁

 

Posted : 25/01/2020 8:05 pm
Primermecos
(@primermecos)
Eminent Member

@wpegden

I'm using a E3D Nozzle-X and print anything with it. For me, it works so far.

Posted : 25/01/2020 11:45 pm
wpegden
(@wpegden)
Trusted Member

Have you had play with your temperature changes to get good settings for your tips (for the MMU2S)?

This post was modified 1 year ago by wpegden
Posted : 25/01/2020 11:49 pm
Primermecos
(@primermecos)
Eminent Member

No, I only raise the temperature of the first layer of PETG prints to 235 - 240 degrees to get better layer adhesion. (but I had to do this before the NozzleX and the MMU2s too)

Posted : 26/01/2020 12:04 am
Andarne
(@andarne)
Active Member

I recently swapped to Nozzle X, and it's printing perfectly. Tried with a generic hardened nozzle from E3D until it clogged, from improper installation. Nozzle X working even better at my default temps of 210/60

Posted : 26/01/2020 1:46 am
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