QUESTION Third-party extruders on original Ultimaker print core AA (Ultimaker 3/5/s)

[GoncaloLaranjeira 1]

Hi everyone,

 

I have an UMS5 and I would like to know if anybody already uses or used a different extruder in the original Ultimaker print core (AA 0.4).

I found this extruders:

https://www.3djake.com/micro-swiss/coated-nozzle-for-ultimaker-3

https://www.3djake.com/brozzl/hardened-steel-nozzle-for-ultimaker-3-aa

 

Do anyone has some experience that can share about this topic?

 

Thanks!

[UlrichC-DE 108]

Hi there 🙂

 

I have rebuilt two print heads.

Background was that I like to experiment with filaments and printing techniques.Otherwise I am of the opinion that the print heads are too cheap to want to repair them myself this way.

 

You should also know that these nozzles have a different heat conduction and require different retract settings. But if you are on other filaments with rebuilt hardware anyway, this should not impress you.

 

Disassembling is easy compared to assembling. Because you have to screw it tight to get it tight.

 

The chance that you destroy the printhead during the rebuild is high. There is a thin-walled tube between the print nozzle and the feedthrough. The heat shield. This is quickly damaged and is glued to the feedthrough. (Resourceful businessmen sometimes sell the heat shield as a spare part. I think it is madness to try to replace it). Therefore, the head must be dismantled with care and reassembled just as carefully. It can also squeak in the thread. These are unpleasant noises for a mechanic.

 

The printer checks the height differences of the print heads before printing. After the rebuild you should be able to run it successfully. Otherwise, this is a sure sign that the print nozzle is not screwed in tightly enough. Another sign that it is not tight enough is if the printhead clogs up on the first few print attempts. Then a plug is formed between the nozzle and the heat shield or the filament is pressed out of the sides.

 

During the conversion, I had to modify the heads, or the heating and sensor plate on the nozzle.

It works for me inconspicuously. So no better and no worse than the original. Just a little different.

 

Here are the pictures. Have fun

 

 

[UlrichC-DE 108]

Another hint. In complete - DIY style, so on the desk it goes only disassemble 🙂

 

[JohnInOttawa 103]

Is this a repeat of your question, posted here?

 

 

If so, Maybe ask admin to merge them, much easier to compare solutions that way.

 

[JohnInOttawa 103]

@UlrichC-DE, it looks like two solutions to the same question on different threads. 

 

Have a look at the link above, it is not necessary to modify the heat block, but there is a particular order of reassembly to both fully seat the nozzle in the heat block and get a tight seal on the cooling tower.

 

Agree completely with your warnings...in my opinion this should be the last option before throwing a core out, as there is a good chance it will come to that anyway.

 

John

[UlrichC-DE 108]

@JohnInOttawa

No idea was that is asked here again.

 

May well be that there is a better solution, I decided that on the workbench 🙂

 

Many greetings

[GoncaloLaranjeira 1]

Hi everyone, thanks for your replies!

 

I managed to reassemble the nozzle on the extruder in the first attempt, after unclogging it with a 0.4mm needle.

I currently have so many prints ordered that now I can't try to switch to a spare nozzle because there's always a chance it won't be perfect on the first time.

 

When I have some time to spare, I'll do it and put the process here :)

 

Thanks!