Is it just me or is stringing much worse on the H2D than any of the other Bambu printers?
Printing the same job with basically the same settings across filament and print settings is seeing much more stringing on prints with finer details (model with teeth that has constant jumping between small areas for example).
I’ve only ever used Orca so it’s possible I’m the issue here, but given the lack of calibration tools within Bambu Studio, it’s making it hard to dial in each filament without downloading 3rd party models on MakerWorld to test everything.
It also seems to be any and all filament (including Bambu filament) which makes me think it’s not filament-specific, but an overall setting that needs tinkering.
A temp tower for one specific filament saw that it needed to drop by 5c, so I wonder if the hot end is doing something much different than the X and A series and needs a lower value (although there’s still stringing on this filament type after the adjustment).
Anyone else seeing the same or any suggestions on where to start to fix this?
Honestly, the only stringing I’ve seen on my H2D was from filament that needed a dry. Give it a try and see what happens.
BTW, stringing is almost exclusively a filament issue. There are some odd issues like the Prusa XL’s, but normally, stringing is a filament problem. Especially if you have not touched the filament settings.
Agreed on wet filament usually being the culprit. In this specific example, the filament has been well dried and the same print on an A1 has pretty much zero stringing.
Good to know you aren’t seeing stringing which means it’s probably not a machine issue, but settings/filament-related which is much easier to resolve.
I’ll try some retraction tests next and see if I can get anywhere with that.
I do that for all my prints with stringing (well, with a butane torch), but the amount of stringing I’m getting is so much that it leaves blemishes on the surface afterwards.
Interestingly, I’ve just run a multi-colour print with Bambu PLA-CF and Bambu matte that cannot be dry (left out in a humid environment for way too long), and not a single string on the exact same print.
Makes me think there’s an issue with my custom profiles for 3rd party filament (or a huge conspiracy to get people to buy Bambu filament ).
Are the retraction settings for the H2D different than say for the A series? I’m wondering because you said the filament was dry and prints fine on your a series so maybe its a settings issues?
I have been printing a lot since the H2D arrived with a lot of different filaments and also models that are prone to stringing (honeycomb boxes etc), but I had zero stringing. That includes printing with different manufactures PLA en PETG. Bambu filament with the default values and other filaments 10 degrees over the minimum suggested temperature.
Ik have the same issue.
My P1S an A1Mini have no stringing at all but my H2D has a lot with petg.
Also really fine webs around the silicone socks.
Never had this on my two others.
Im gonna check tonight the difference in profile settings on my two other machines compared to my H2D.
Dear, yes, I also found much more stringing in the H2D than in the P1S for the same pieces. If you find what setting to fix, please, tell me! Besides that, the lightes solves it, but I expected best direct results.
I persistently see string debris remaining in the noozle, aduring and specially after the printing. Anybody could fix this? Long life to H2D!
Thank!! Certainly I print with PolyMaker. I’ll try to set the Bambu PLA setting profile and print with PolyMaker, checking if the abnormal issues disappear.
Mee too, lots of stringing compared to P1S. Just to check if the AussieGrit “conspirancy theory” makes sense: do you use a 3rd party filament brand (I use PolyMaker and its profile)?
Thanks everyone. After trying a bunch of suggestions, I think my conclusion (for now at least) is that moisture is the issue.
However, I think that the H2D is much more sensitive when it comes to moisture compared to the X and A series. I have tested the same prints with the same filament roll on each and the X and A series don’t have as many stringing issues as the H2D, but when fully dried, all 3 print without stringing.
Personally it’s annoying as I live in a humid climate so I’ve been lucky to get away with semi-moist filament in the past. It’s also annoying that the AMS 2 Pro doesn’t allow drying while printing, but I understand the limitations of softening filament while loaded.
).