just gave myself the High Flow ObXidian™ HotEnd 0.4 as a winter solstice present so I came hunting info on profiles in Bambu Studio. Most of the discussion seems to be from early in the year when they first went out to beta testers and 'influencers". I bet lots of folks will find these under their tree and coming here hunting for info. I put the question here as BBL have blessed this hotted,
I decided to give it a try as the original .4 in my X1c has become seriously clog prone at several times a week. I have it on my bench awaiting full disassembly and investagation and cleaning.
The new High Flow ObXidian™ HotEnd is printing beautifully but I would much rather have updated profiles in the slicer so I can just select the profile when I am switching between the stock .4mm and this E3d item
Interesting. It is a lot of money for 60% more flow, which needs more print speed, which will cause worse print results, won’t it?
And why is this “developed with Bambu Lab”, but not offered by Bambu Lab?
I am looking forward to your tests and recommendations for daily use!
For now I am just doubling the flow rate so if the stock for generic la is 13 mm sec cubed I kick it to 20 or 25. but i am flying blind on this hence asking the wise ones here for their hopefully long term experiences with this hot ends
I get about double flow with my .6 Obxidian, coming from a stock .4. I think doubling for .4-> .4 might be too much. I’d do a max volumetric flow rate test in OrcaSlicer.
The Obxidians are pretty cool in my experience. Just increase flow by 50%, slice and print. No drop in quality whatsoever. At least for PLA. Not sure how increased flow would interact with PETG’s poor overhang performance which is of course cooling driven, so not much the hotend can do about it.
However, the effect is probably even bigger for the .6 nozzle. The Bambu .6 is flow limited to the same limit as the .4, so not much use in going faster. The .6 ObXidian has more room to bring actual improvements in that regard. Only a max flow test will give hard numbers though (with which I did not bother) as @movingimage noted.
As for why E3D rather than Bambu, well, it looks like E3D has more nozzle experience than Bambu so, not really a mystery.
The only downside is that their expense means that it hurts much more when a nozzle gets bent …
Yeah - the taller layer heights with the .6 (.3+) unlocks a lot more speed than possible with the .4. It can really start to use the increased flow volume without making the motion system move around too fast and get sloppy. Add Arachne to that, and the .6 can render nearly the same detail as the .4 using the “Classic” wall generator.
all good info thanks to all of you.
i am very happy with print quality even just with the small reduction in print times
just printed a lovely stocking stuffer of this 35cm bone shaker dragon gold silk pla The Bone Shaper - Articulated Dragon by hollowmaker - MakerWorld that my young nephew will love with the stock .4 hot end the time was at 6.9 hours but with this e3 it took just 5.5 hours
Even the .4 HF can speed up prints over the .4 stock, because you can print cheaper normal filaments that usually have a low maximum volumetric speed, faster!
I think I have an unopwned spool silver PETG that I got from SEEMECNC when I was fighting with their big Rostoc3k Delta printer I will toss int in the drier and see how much I have forgoten about printing PETG. I will start it at about 35% increase in flow rate fron the generic bambu Studio PETG settings. If I had any brains left I would start doing a plate of test objects and in crease the flow rate by 10% on each one. But at this time of year I have been making Merry for a while and at nearly 80 years old Even I still know better than to start messing with the printer right now… but I dont know better than to post on an open forum half in the Bag Off to find a good PETG test print.
This use of cheap filament is something I have never thought of… thanks for the tip.
My Big winter solstice gift to myself has just arrived a bit late, but when I get home from my shift, I am setting up My New AMS on top of my X1C.
Tests with some 5 year old PLA Prusament and Jessie’s elixir (High quality PLA Silk from Printed Solid) Have both priinted beautifully as has 8 year old PTSG older ATS
Off to find a good PETG test print.