Super hard nozzles - Test pilots

[Anders Olsson]

Those nozzles look awesome
If you can, make sure to release 1.75mm variants as well so that I can buy one for my Prusa i3

I should definitely send you one for free for finding out about the scotch-brite thing!
You will probably have to do with the old design though if you get it for free, because most of the new ones are simply not mine..

[Blizz]

That's very nice of you but I don't mind paying for them
After all you put a lot of your time in it as well.

[danilius]

I'm just depressed I managed to smash the one I had in no time at all. Sigh.

[Titus]

How did you manage to do that?

[LePaul]

Bad z calibration? Dropped? Do tell

[Anders Olsson]

I think danilius unscrewed the nozzle when it was rather cold.
The ruby nozzles does not like that, in particular the prototypes.

I haven't tried unscrewing the improved ruby nozzle cold, it is probably a bit more likely to survive it, but I would strongly suggest to always heat the nozzle to printing temperature before changing it, independent on nozzle type

[LePaul]

I can probably help him out

Question....for the Ultimaker Original heater block, I had to move the brass pipe more into the heater block, so I would have a slight space between the nozzle and heater block. Is that normal? Or is every UMO ruby install a bit different?

[danilius]

I broke the nozzle by unscrewing it cold, sorry Anders. In my defence I had no idea it was only supposed to be unscrewed whilst hot, but it makes much more sense to install and remove nozzles under heat anyway, I just never thought about it. Never mind, when they come out I will buy one because I have a roll of carbon lying around that I really need to test.

[Titus]

Every UMO heater block could be different, that is I'm not sure I have an official brass piece or a china piece But yeah, it requires a bit of tweaking.

Also, the ruby nozzle has been named according to Colorfabb:
The Olsson Ruby!
http://learn.colorfabb.com/the-olsson-ruby/
They are even linking to this forum

If you’re interested in more information on The Olsson Ruby project visit the 3D printing forumviewtopic.php?f=9&t=4

[LePaul]

To think we knew him before he was famous....he'll have to get a tattoo of a ruby nozzle on his [muscular] biceps

Edit...ok, see it...thought it would stand out (like most hyperlinks do)

[Anders Olsson]

Question....for the Ultimaker Original heater block, I had to move the brass pipe more into the heater block, so I would have a slight space between the nozzle and heater block. Is that normal? Or is every UMO ruby install a bit different?

In theory the threaded part of the nozzles should be equally long on the UMO and the ruby nozzle, however I had more people needing to adjust the brass pipe, so people who install it on UMO should expect to have to tweak it a bit.

I broke the nozzle by unscrewing it cold, sorry Anders. In my defence I had no idea it was only supposed to be unscrewed whilst hot, but it makes much more sense to install and remove nozzles under heat anyway, I just never thought about it. Never mind, when they come out I will buy one because I have a roll of carbon lying around that I really need to test.

Don't worry about breaking the nozzle danilius, this was the whole point the testing, giving it away for free to people asking them to try to break it is the ultimate way to test a product and I got very valuable input from the testing! The possible failure modes were actually the most important information at this point as I already knew it printed okay but needed to know if the design was rigid enough.

I can probably help him out

I should probably explain that Paul has a stock of ruby nozzle components that I send him for testing on the American market, however there turned ut to be few testers over there, so Paul has more rubies than I have right now

I don't mind if Paul sends replacement nozzles to those who broke your nozzles and even to others requesting nozzles in this thread!
However:
- It is completely up to Paul to decide whether he wants to do this or not.
- I expect Paul to charge a reasonable amount for this, as he should not work for free.
- We are talking about the prototypes here, not the improved version.

Apart from that I have a shortage of rubies at home, I am abroad right now, otherwise I would happily send the replacements myself

[Anders Olsson]

Also, the ruby nozzle has been named according to Colorfabb:
The Olsson Ruby!
http://learn.colorfabb.com/the-olsson-ruby/
They are even linking to this forum

If you’re interested in more information on The Olsson Ruby project visit the 3D printing forumviewtopic.php?f=9&t=4

Thanks for the link, I was not aware that they published more on the ruby testing!
I hope the nozzles survives, it will be a rather tough test considering that Colorfabb has plenty of 3D-printers and an unlimited supply of abrasive filaments

It was 3DVerkstan that came up with the name by the way

[Amedee]

Any timeframe for the commercial availability?

(No commitment, just to have an idea -- would like to replace my broken one as well, and it's a bit stupid to bug LePaul to send one back fro US, which is either slow or unnecessary expensive )

[LePaul]

I should probably explain that Paul has a stock of ruby nozzle components that I send him for testing on the American market, however there turned ut to be few testers over there, so Paul has more rubies than I have right now

I don't mind if Paul sends replacement nozzles to those who broke your nozzles and even to others requesting nozzles in this thread!
However:
- It is completely up to Paul to decide whether he wants to do this or not.
- I expect Paul to charge a reasonable amount for this, as he should not work for free.
- We are talking about the prototypes here, not the improved version.

Apart from that I have a shortage of rubies at home, I am abroad right now, otherwise I would happily send the replacements myself

I should (finally) have some time to review the top secret documentation on putting them together.

Price, I have no idea...Anders, you can message me and decide that!

I should probably put one together and test it in my Ultimaker 2...which means finally doing the 2+ upgrade so I have an Olsson Block! Also, if I messed up the nozzle in any way, it makes a mess on my printer and not theirs

[LePaul]

Any timeframe for the commercial availability?

(No commitment, just to have an idea -- would like to replace my broken one as well, and it's a bit stupid to bug LePaul to send one back fro US, which is either slow or unnecessary expensive )

Since the nozzles are so small, you would think the price to ship in a padded envelope would be cheaper than a small box...about the same. $32.95 for padded envelope or $33.95 for a small box (my preference, since envelopes get crushed in shipping....I used to work part-time for UPS!)

If that's more than you want to spend, I understand. I certainly don't mind putting them together for people with the limited stock I have.