ObXidian nozzles - how good are its non-stick properties?
I'm getting a 0.6mm obxidian nozzle for abrasive filaments. I'm considering whether I should also get a 0.4 obxidian nozzle, but mostly for the advertised non-stick properties. I think it might be a nice quality-of-life improvement if filament sticks considerably less to it, especially if it helps avoid nozzle build-up with PETG.
In the reviews and impressions I've found I have not seen this mentioned or tested much at all. So my question is, how well does this actually work in practice?
RE: ObXidian nozzles - how good are its non-stick properties?
I have been using an obxidian nozzle for some time now, besides the fact that I bought it to print carbon filament, I had read that the filament sticks less on it, it’s a reality, previously with my mk3 I used nickel plated copper nozzles for the same reason because I mainly print petg.
RE: ObXidian nozzles - how good are its non-stick properties?
Thanks for your input, much appreciated!
I would love to hear from more people, but I guess I'll give it a go. I'd rather regret buying it than regret not buying it 🙂
RE:
It's my go-to for both 0.6mm and 0.4mm. It really is a drop-in replacement, and the "sticktion" results are slightly better. I wouldn't say it's a game changer, but I've been getting absolutely fantastic results from it with PETG (both 0.4 and 0.6), with stringing usually only occurring in the expected high-detail areas/quick layers just like the standard brass nozzle. Filament/crud buildup is minimal, haven't had to anything really noticeable other than the usual slight coating that can easily be removed with a few quick passes with a wire brush.
These results go for both the v6 + nozzle adapter, as well as the full nextruder style, all using input shaping with mostly stock print/filament profiles (prusament/generic PLA/PETG, normally have PLA temperature set to 240 on other layers due to flow rate).
PLA prints are absolutely flawless. Prusament PCCF on the 0.6mm is also drop dead gorgeous.
The real test is going to be with the MMU, since mid-print filament changes both cause buildup, yet need as little as possible for a good quality (or even just a finished) print.
RE: ObXidian nozzles - how good are its non-stick properties?
hi, i got the ,4 and ,6 too. Yes its easier to wipe off.
(But as said in the instructions. Don't use a wire brush or similar. You wouldn't clean your anti-stick pan with a wire brush 🙂
Before printing inside an enclosure i had to dial up the nozzle heat around 5 ° to match the results i got with the brass nozzle. (Steel not being that conductive than brass)
I'm waiting for the carbonfiber filament to arrive 🙂
RE: ObXidian nozzles - how good are its non-stick properties?
Posted by: @carlmmii
It's my go-to for both 0.6mm and 0.4mm. It really is a drop-in replacement, and the "sticktion" results are slightly better. I wouldn't say it's a game changer, but I've been getting absolutely fantastic results from it with PETG (both 0.4 and 0.6), with stringing usually only occurring in the expected high-detail areas/quick layers just like the standard brass nozzle. Filament/crud buildup is minimal, haven't had to anything really noticeable other than the usual slight coating that can easily be removed with a few quick passes with a wire brush.
Thanks! Sounds like it's not as good as an upgrade in that regard as I had hoped.
(But as said in the instructions. Don't use a wire brush or similar. You wouldn't clean your anti-stick pan with a wire brush 🙂
Before printing inside an enclosure i had to dial up the nozzle heat around 5 ° to match the results i got with the brass nozzle. (Steel not being that conductive than brass)
Thanks for your input!
However these two points directly contradict E3D marketing on the Obxidian, as seen here.
Regarding the coating, I think you're confusing obxidian with Nozzle X. A brush should not be used on nozzle X (as mentioned in the article linked above), but they say you can brush the obxidian as much as you like (emphasis mine):
Nozzle X vs ObXidian
Nozzle X also has a non-stick coating, but it’s fair to say it doesn't really repel polymers. We advise against using brass brushes or even paper towels to clean Nozzle X, as these quickly wear away its delicate non-stick coating.
Obxidian:
Non-stick properties are embedded into the coating itself. Great news for fans of the brass brush. You are free to scrub ObXidian to your heart's content. Cold pulls are also on the cards. These were two of the main focuses of customer feedback about Nozzle X, and we took this on board when creating ObXidian. Check out this guide for more info on our recommended cleaning techniques.
Weirdly enough the cleaning guide they link to can't actually be viewed unless you login to their customer system.
They also claim that no temperature adjustment is necessary compared to a brass nozzle, since obxidian nozzles are all brass except for the very tip. But I'll believe you on that part, I'm not suprised if it doesn't work as well as advertised.
ObXidian’s copper-alloy construction means you no longer need to spend time fiddling with temperature values to account for the weaker thermal performance of other abrasion-resistant nozzle offerings. Simply select the profile you would use for your brass nozzles and hit print. A true drop-in replacement for your brass nozzles.
RE:
I've been printing for a couple of weeks now with Obsidian nozzles and haven't seen any need to adjust temperatures. In that respect, they've performed like my tungsten carbide nozzles, which I miss dearly.
RE: ObXidian nozzles - how good are its non-stick properties?
Are there any infos when the ObXidian nozzle will be back in stock?
RE: ObXidian nozzles - how good are its non-stick properties?
My Ob nozzles work well. I really am a fan of the socks for the heat block on the MK4. Had a couple of prints fail, and it was no drama with the socks keeping it from sticking to the machine.