Update: 2024.Jun.26:
I was wrong again. The problem was the K-factor!!!
Updated post: I was wrong. The problem was with the new PLA Basic White filament I got from Bambu Lab. Even thoroughly dried requires a snail speed to work properly.
Upgraded Bambu Studio yesterday and now when printing PLA 100% infill I am getting bad parts.
It does 6 wall loops, as specified, but after the first layer, it leave a gap between the wall and the rest of the layer.
Sorry you’re having issues. I’m guessing you have sliced & printed this successfully before?
It stinks but one way around is to store the print files on the SD card and replay them instead of re-slicing and printing from Bambu Studio? Only thing is that doesn’t help you now.
I got burned on a Fusion download that broke SVG and we had to wait a week (surprisingly fast) for Autodesk to fix it. I saw the upgrade notice for Studio and decided it was a nope until there was feedback.
Have you filed a trouble ticket/bug report?
That is an odd issue. If you revert back to a previous version does the problem go away?
Yes, I printed perfectly a week ago.
I will try tonight to downgrade the software.
Bambu Studio (and I assume Prusa Slicer) does odd things when using modifiers. Are you using modifiers where these lines are? Or is it a different type of line gap?
Do these gaps show up in the slicer preview?
Used default settings for Bambu PLA Basic. the only change to the defaults is 100% infill.
Same model printed flawlessly a couple of days earlier. The only change was the software upgrade.
No, they do not.
P1P printer, Bambu PLA Basic white, 0.4 mm nozzle. Everything else vanilla.
latest P1 firmware version?
Not to send you on wild goose chases but what if you set infill at 99% instead of 100? It’s not uncommon for programmers to not test corner cases and have stuff blow up with divide by zero errors, rollovers, or other things that can cause invalid results when at limits.
These printers might be good enough to print 99% with all the little holes that would be left over, but maybe that could get you going if 99% is almost as good as 100% - plus it might provide a clue for the programmers.
Or, it may be a different issue and still print wonky.
I’d probably stay away from 100% infill. Dense plastic parts are a lot of trouble. Also, very seldom do you need 100%. Have you been having issues with warping as well? 100% infill definitely doesn’t help there.
100% infill also causes various problems with certain types of infills. Some of them will not even allow you to choose that much infill. Personally, I don’t go above 35%, but I recommend people keep it under 85%. Not sure if the new slicer version has an issue with the infill handling but that’s just something I’d suggest to people using massive infill.
Your wall count is good for strong parts, and if you need a strong dense face, consider a lower infill but higher top surface count.
Personally, the only 100% infill part I would try is a metal bending die. Sorry to jump off on the 100% infill rant, but I guess it is possible it could create some anomalies in the slicing.
Edit - Looks like someone beat me to the 100% infill suggestion, but I’ll leave this up.
Thanks for the advice. This still does not explain why this part used to print flawlessly and now it does not.
I will downgrade the software tonight and see what happens.
Well prusa slicer changed there gap calculations. I assume bambu studio inherited it. There are several github threads on prusas github been a problem for a long while there new beta release supposedly has a fix using both the old and the new calculation and switches between them if i read it right. I guess downgrade until bambu copy’s there fix or switch prusas beta.
I was wrong. I tried the same part with PLA Black and it worked flawlessly.
The white filament was brand new and dried overnight in a Sulu dryer. It went back in the drier this morning. Will try again tomorrow.
Don’t tell me. Let me guess. Is the filament PLA Jade White and very shiny on its surface?
Ah - now I see you edited the OP to say it was.
Might want to see the other threads here about Bambu changing something about their filament to go from a semi-satin finish on Basic white and black to a high gloss finish with slight color change. I got bit with the change in the black PLA. The shiny version is brittle and has surface defect issues when printing. It’s junk.
Haven’t seen other colors mentioned yet but Bambu customer service is apparently refunding or replacing rolls. I’ve got a 2-pack of shiny white filament I need to return. I just threw the shiny black roll away before I found out they were replacing them.
Check these…
Update: The solution was to slow down to 50mm/s.
Glad to hear. I just got a filament dryer so am hopeful but will keep slowing down at the ready. Thanks!
I am very grateful for your answer. It saved my sanity.
This is wild! @BambuLab Please start addressing product changes either within the forums or send a official newsletter to customers informing users of changes.
I’ve seen this all too much over the past 15 months… I do understand manufacturing and when it comes to changes in design that’s usually addressed publicly. But when the composition or product is altered in a way that doesn’t match the original marketed product/design I’m not sure if you’re required to honestly be transparent about the changes in the background.
Did anyone notice the part fan, chamfer fan, and hotend fan come from a manufacturer named “SnowFan” now?
I mean these are little things so long the overall product matches and functions as the original model/design. But I’ve honestly never seen so many changes in a product before throughout 15 months. Each X1C has different components, as the P1P’s I own… the newest AMS is so much better than the AMS I got months ago lol.
1 lid closes fully snug by its own weight, the other i need to force to close all the way…
Agreed. The AMS and RFID are a big selling point where they claim it simplifies and standardizes printing. Just plop in a spool and the printer settings are preconfigured for you.
Then they swap in very different behaving filament(s), don’t give them new RFIDs to keep them separate from the previous versions and don’t update print parameters, and slip them into their supply chain with no notice.
It’s not how you keep customers.
I’ve got a number of PLA Basic RFID tags that seem to be quite appropriate for at least Hatchbox PLA and have printed up holders that fit the Hatchbox rolls. I really liked the convenience of RFID and the AMS, but am not a fan of repeated printer disassembly to fish out bits of broken filament. Now I want Bambu to open up the RFID system so we can get functionality back.
At least they seem to be replacing the bum rolls but I’d really like to know if this will be how they operate going forward or not.
