It def seems faster but it also seems like you sacrifice some of the surface quality. After the first print I’m not impressed and will prob put my default 0.4 nozzles back on. Quality > Speed.
What are some others opinions/results?
*Update: Ran the calibrations twice and the issue is resolved. I’ll just assume the HF nozzle needs a little time to dial in. My prints look just as good as they do with the non-HF nozzles.
Get mine the next days and will report
I got a pair of them a few days ago and so far really like them. I’ve printed PLA and PETG with good results for both. Really reduces print time. I shaved nearly an hour off of a five hour print compared to the standard nozzle.
I don’t see any compromise in quality, but the speed improvement isn’t significant either.
The flow is definitely more consistent, though the overall speed could still be better.
That said, if you fully calibrate your filament, the difference becomes much more noticeable.
I like them. I see no difference in quality and they allow me to print everything on ludicrous mode. The price is a bit nutty though
The only way you can utilize them correctly is to re calibrate all Filaments you have (except it are the HF PETG variants from Bambulab, they will be adjusted automatic when the HF nozzle is installed and choosen in the settings)) and to re adjust the Flowrate then accordingly. Without doing this, save the money as it will not generate any benefit except you need to flush mor “cleaning” material through the nozzle when changing Filament as the chamber is bigger and moore remains from the previous used Filament will be left… The recommended settings can be found on the Bambulab accessories section in the High Flow Nozzle Section Standard PLA for examle from standard 24 mm³/s to 40 mm³/s
I haven’t seen any issues with quality on the HF nozzles. Speed-wise, I’ve never noticed any real value, but I haven’t taken the time to make profiles. Overall, the HF nozzles have been a nothing burger for me, but in no way worse than the standard nozzles.
Yea def overpriced for what they are, I’ll take even a slight speed boost though just as long as I don’t sacrifice quality. Now that they are calibrated I have no issues, so I’ll just pretend it is a bigger benefit than it likely is looool…
Unfortunately, you can’t have one nozzle be high-flow and the other standard flow if you want to use both nozzles on one print. Or so I’ve read. Apparently the nozzle heights aren’t quite the same, and there’s no existing mechanism to compensate. It’s strange that the firmware doesn’t throw a flag when initially configured this way.
So, if you’re going to buy 2 high flow nozzles, one for each nozzle, buy 3 instead, in case one gets clogged and you need to replace one. Likewise for standard flow nozzles, buy 3 so that you’ll have a spare.
I haven’t tried mixing the nozzles yet, but here are the measurements for my spare new nozzle. Measurements are.
49.40mm Std 0.6
49.26mm HF 0.4
49.34mm Std 0.4
So the 04 standard high flow nozzle is actually a tiny bit about .1mm smaller than the standard??
Checking in the slicer selecting standard Vs high flow nozzle and it shows no difference even on a 15h print.
Yes, there’s very little difference in their length.
The high flow nozzle profiles are not properly configured most have the same max volumetric speed setting.
I believe only the HF-PLA & HF-PETG profile from Bambu Lab had higher settings, so you’ll need to configure them manually for now and run some tests with your filaments and adjust the retraction settings as needed for HF nozzles.
In my experience the only thing that negatively affects HF nozzles - overhang quality IF, and only IF, the printer doesn’t have a good part cooling system. It was a bit of an issue for X1 series, I don’t think it’s an issue for H2 series.
Other than that - default things apply: Print fast = weaker prints.
with some wiggle room, of course.
Yeah, the profiles dont seem to be done yet. Youll have to increase speed yourself. I use the sport and ludicrous modes for this. Makes it easy and adjustable on the fly. If you find that it always works in a certain mode, make a custom profile to match. Including accelerations
Aha! So maybe this explains why mixing 0.6 and 0.4 nozzles isn’t allowed either, if using both on the same print. A number of people wanted to print exterior using 0.4mm nozzle (for best appearance) and interior (for faster extrusion) with 0.6mm.
Good heavens! If this is the reason, I really wish they had made them the same length. Unless there’s a reason to have different lengths, it seems quite short-sighted to have them all be different. Am I wrong?
I had assumed that the machine does a bed tap with both nozzles anyway. For the 2 z offsets. So the slight difference in length wouldnt matter. My guess was that its just not ready in the slicer yet and they are working on it now. Hopefully
yes, it’s not a problem of z-offset. it’s just how the slicer plots the lines that got much more complicated.
I haven’t seen any quality issue’s that are unique to the high flow nozzles. But I can print with a HF nozzle in Ludacrous mode for prototyping in PLA basic and PETG HF and the prints come out just fine. Layers are not as smooth as standard but the parts look darn good for the speed they were printed at.
Yep overhangs have been an issue with ASA since I swapped the HF nozzle in 2 days ago. I printed the same part twice, same profile, (only change was the HF nozzle) redone the entire calibrations including vision encoder plate. Only change was the nozzle, but the overhangs (45 degree incline) were really terrible afterwards. Even the outer wall speed was identical (60 mm/s). So I think it’s safe to say that the profiles for the H2D will need quite a bit of tuning to account for the different thermal properties of the nozzle.
Does anybody have a good ASA profile for the 0.4 mm HF nozzle?
Maximit I believe prints ASA with HF nozzles w/o any trouble. Maybe he can post his secret to success. I think he even prints ASA GF with the HF nozzles without issue. I would think that any fibers would be risking a clog on high flow nozzles where the extrusions path splits.