So at my company we use a Bambu X-1 Carbon to print parts for the plant floor as part of an additive manufacturing cost savings project. Every print I have ever done with the X-1 Carbon has come out flawless. However, the last time I tried to print a part out of Bambu PAHT-CF the outer wall was god awful and full of Gaps, I figured maybe the model was messed up so I printed something else and it was the exact same results then I figured maybe the filament had some moisture in it so I changed the filament to Bambu PLA-Basic and started drying out the roll.
While it was drying I tried printing the same part with the Bambu PLA-Basic, Still the same results, So I checked the Nozzle for a clog and everything was clear, I even Cleaned it out to be safe. Ran it again and the same thing, Then I performed every Calibration the machine and the slicer both had to offer, for my flow rate calibration the results were actually very good looked exactly as pictured, so I sliced the model again and ran it, Exact same results once again. At this point the CF had finished drying and I tried again with that, after cleaning the nozzle out before loading the CF just to be safe, and I performed all Calibrations, Same results. Then I used the Bambu its self to Dry the CF because we have a dryer that came from Matter Hackers website. So after this was complete I repeated Nozzle Clean and Calibrations and then tried again and same results. Did the exact same Bambu Drying Nozzle Clean and Calibrations for the Bambu PLA Basic and still same results. Pictures are Attached of a few CF and PLA Initial tries.
Then I did some googling and saw that it could be Flow Rate settings so I manually played around with the Flow Ratio and the max Volumetric speed and was able to get much better results from PLA however it was nothing compared to what it usually does. But They were getting better then I saw where someone added more layers to the outer wall and I did this and it did help a lot but still nothing like previous quality.
There was also a couple of prints where the dynamic flow calibration looked wrong.
Then I decided to look at the extruder gears. Perfect Conditions.
I have submitted a support ticket and have not gotten any response yet.
It looks like there are just several layers with gaps in them, not entirely skipping layers but like the printer just decides to not put portions of the layer. If that makes any since
Through all of this the extruder head and bed have been at the proper temps and all fans have been working properly.
Someone Please Help I have exhausted every avenue I could Find on google as of now.
A recent update to bambu studio (1.10.??) made some changes to scarf seam moving the setting to be based on the filament and on by default. It seems like that may have happened here so check your filament profile for the scarf seam setting and turn it off if it is on.
You also might want to check the release notes versus the version you are running, I think they noticed this shortly after 1.10 dropped and made a patch to address it.
Yes I have updated to 1.10 and scarf seam setting has been turned off I have slowed down a lot of the outer layer speeds and initial layer speeds and running the print again to see if that helps
^^ Playing and messing around is the sure way of NOT finding the problem
Do a PROPER calibration of the filament, including k-factor.
The max flow rate is more a limiting factor to ensure print settings won’t outrun what what filament and extruder/hotend are capable of.
Bambu like to make a total mess out of OUR OWN files for no reason.
Almost every time Bambu comes with a new firmware or major Studio ‘improvement’ it results in perfectly fine working 3MF files failing and producing unacceptable prints.
Totally nullifying the benefits of using 3MF files for repeatable prints.
I observed this issue ever since I did my first update
Let me try to explain why or how our own 3MF files end up so wrecked >
Bambu does not tolerate individuality when it comes to uploading 3MF files.
Their ecosystems relies on everyone using the same in order to extract the best working print and filament settings.
So ideally you only use supported filaments and print everything without making too many changes to the default settings.
But reality is we all do what it takes to get the print out the best way…
And THAT’S where our problem starts…
Updates mean new features, new settings, different defaults, different internal calculations and parameters we neither know nor are able to change.
MEANS : Bambu changes things that affect what we HAD TO CHANGE to overcome problems/shortcomings.
So what we changed and improved suddenly has a bad effect on those new things and improvements.
Like when Bambu decided to improve the supports so they are easier to remove while offering more hold at the time - their claim didn’t make sense as one excludes the other.
For us it just meant that supports we never struggled to remove suddenly were fused to the model…
And every time Bambu messes with improvements for the filament all my custom filaments require re-calibration and tuning…
It just never ends, really…
What I find most frustrating here is this:
You get an order for an old model that requires filaments you can no longer get.
Means you have very limited amounts and room for failure if you don’t want to discontinue the model.
You dust off and dry the filament, hit the button and are happy to see the old filament still sticks to the plate and looks good.
Many hours later you take the print out and fine one defect or flaw after the other…
Wasted your limited supplies, time and sanity for no other reason than Bambu’s refusal to provide a proper backwards compatibility for their own files
So what did I have to do in order to NOT waste time and material ?
Get the old laptop to run several versions of Studio in a VM and sorting my 3MF files based on Studio release numbers…
Would be hilarious as a comedy show but not in reality…
