Nozzle 0.40mm AA for Ultimaker S5

[mathieu33 0]

Hello,

 

We recently replaced the print cores on our Ultimaker S5. Some of the old ones have blocked nozzle.

Is it possible to purchase the nozzles separately, or is there a restoration service in the EU?"

 

[gr5 2,177]

is it worth it?

 

It will take an hour of your time to swap out the nozzle so if you work for a company that is spending probably 100 euros per hour on you (includes benefits, taxes, etc) it probably is cheaper to just buy a new one.  Ultimaker wants you to think of them as a consumable, like filament (you should certainly be thinking of them as cheaper than filament if you only replace them once every 10 spools).

 

But if you are on a tight budget and don't mind spending the hour to save 100 euros...

 

how to change...

 

The nozzles are super long (the threaded region alone is probably 2cm) but you can get them through aliexpress.  On youtube search for "um3 ultimaker 3 core disassembly" to see my not-fantastic video on how to take them apart without damaging them (they are delicate).

 

unclogging

 

There are many ways to unclog a nozzle.  For example hot and cold pulls.  tiny needles.  There's even an option in the maintenance menu to help you do this.  Or you can take it apart as per above video and once the nozzle is separate you can just burn it all out.  I don't recommend getting the brass red hot but if you do it will weaken it but it's still plenty strong even untempered.

[mathieu33 0]

Okay, thanks.

Then I'll check later to test a nozzle change, we have around 7/8 of them.

Is there a restoration service or something similar to avoid the risk of breaking them?

[Dustin 130]

Not officially, no.
Print cores are considered non-serviceable by UltiMaker.
More details here: https://support.ultimaker.com/s/article/1667417421595

[gr5 2,177]

You mean you have a bunch of nozzles or a bunch of clogged print cores?

[mathieu33 0]

I meant clogged print core.

We change them maybe every years on our 5 Ultimaker S5.

Some of the print core were changed when they were obstructed and the others were changed when it didn't print properly 2/3 times in the row.