Super hard nozzles - Test pilots

[Meduza]

I'll just say WOW, these new nozzles are superbly machined and a real work of art...!



The orifice is spot on and perfectly centered:

[Anders Olsson]

Nice photos!
I would say the nozzles are almost too precisely machined, it scares me slightly, but so far it seems to work

For the next batch I will make some changes as I mentioned before, to make the functionality rely a bit less on precise machining.

[Amedee]

With the right crop on the pictures, maybe I'll have a good business case to go to my CFO and say 'Honey, shall I buy some ruby?'...

[nilrog]

[PeggyB]

here you are... keep it for yourself

[reibuehl]

I suggest @PeggyB version as the optimal shipping mount - maybe with a little velvet clad box as the shipping container?

[Titus]

a real work of art...!

THIS! It would almost be a shame to try and use them to see how we can destroy them.

[Izzy]

Omg they are almost pornagraphic, all they need is a little leather case....
Cold Shower, Cold Shower.....

[Meduza]

So... I'll just had to do it ¨

Drew a threaded ring up in Fusion 360:


Sliced it in PreForm and sent it to the Form1+:


During printing i also drew up a simple box to be printed in black PLA on the UM2+:


Here on my finger (the ring is still unpainted here)


A coat of paint later for the ring, some red velvet, some foam and spray glue later...

[Amedee]

F.A.N.T.A.S.T.I.C.

[nilrog]

Now that should be the official packaging when they go live

[Meduza]

I also published it on YouMagine if you want to make your own
https://www.youmagine.com/designs/nozzle-ring-box

[Cloakfiend]

I would love the opportunity to test out this nozzle, I would be more than happy to provide as many pictures and results and progress tests. My only issue has been vibration, especially at high resolutions and would love to test this new nozzle till death do us part. Please drop me a message if it will be possible in any shape way or form. im a bit late on this thread I know, sorry. took me a while to register, I kept getting the verification question wrong, lol.

[LePaul]

Welcome to the forum, Cloakfiend!

[Anders Olsson]

I keep being impressed by that ring every time I check this thread Meduza, if I had more time I would deliver all of them in such packaging

Those of you who expressed interest in testing a nozzle in this thread have been contacted by me now.
People in the US will have to wait slightly longer than European users.

If you wrote in the thread and did not express interest, but still want to test a ruby nozzle, tell me and I will see what I can do.

I don't have any particular demands on the testers performing tests with this batch.
Just print as usual, or do whatever you want with the nozzle, and provide feedback (both good and bad things).

What I am particularly interested in for this batch is:
- Thermal conductivity issues, particularly for the 3 mm version (which has a bit lower conductivity than desired, which will be corrected for next batch)
- Will the ruby stay in place? (The fixing is a bit minimalistic on this batch, will be improved on the next version)
- Any problems with leaks?

Of course I am also interested in printing quality observations and anything that can wear the ruby.

Recommendations for users:
- Most materials appears not to wear the ruby at all. However, GMASS-tungsten filament and cleaning the nozzle with scotch-brite does wear it.
I don't mind if you do things that wears the nozzle, it is actually interesting for me, but I can not provide unlimited numbers of free nozzles
- Do not over-tighten the nozzle! It should take about 3 Nm before it breaks compared to 5 Nm for normal nozzles, but 0.25 Nm is normally enough for it not to leak (use the printable torque wrench).
- If you clog the nozzle and use a needle to clear it, be careful not to bend the needle, or this can happen:

(Next batch will be a bit stronger)

EDIT: One more thing:
I have tested the all the nozzles before shipping, so there will be some PLA left in most of them. If I used ABS I tried to remove it before shipping.
Some of them has been used a bit longer than others since I use them for printing things I actually need rather than printing robots
So your nozzle might not look as clean as the one in Meduzas picture, but you will have to live with that