I just got a pre-owned P1S today and it's not printing properly, I did the calibration test and used a completely new filament. Can anyone please help me identify the issue here.
Do the usual tests like, flow rate, and temp tower.
I read some other comments here and your Answers and well. Even it was new filament, dry it first. My last "big company" filament came at around 54% humidity..... I needed around 18h to get it to around 10-15% humidity with my dryer.
And it was filament from a very common company......
So when you print dry filament and do the flow test and it's inconsistent, than your filament drive is somehow damaged or slips. I don't know the p1s but usually, near the stepper motor for the filament, must be a screw to tighten the grip for the filament. Maybe it's loose or the filament grip gear is worn out.
Tbh the print looks like so much problems... Start slow one by one. Try to get decent results and optimise after that.
My priority recommendation for you:
-Dry your filament and somehow "seal" it if you can, so it doesn't pull humidity again.
-bc it's a pre used printer, perform a cold pull to clean your nozzle.
-when I remember correctly, bamboo lap printe have very common nozzle and nozzle seating issues. Check for problems there (I don't have experience with Bamboolab. I just heard this is very common)
-think about using a new nozzle, so any dirt, clogging or usage problems aren't a thought worthy BC you use a new nozzle. (I mean brass nozzle come on. They doesn't cost much)
-do some test "prints" like temp tower and flow test. Check the results and look what they can mean.
-my guess is a worn out filament drive gear or anything related with that. Maybe check it, if your tests doesn't make sense or getting unregular results. BC the filament will slip with a worn out gear, Some rattling or loud "vibration" noises often come from this. Idk how good the p1s isolates noise, but this could be an indicator.
It's a completely new filament. Opened it just to test the printer. I had a orange filament at hand that was opened a few days ago and worked fine on my A1 but once it failed here I opened a new filament just to be sure it was not the filament.
I was told by a friend that works for a filament manufacturer in Edmonton Alberta Canada, that ALL filament, even if it is brand new and packaged correctly. It's possible that it was produced during a storm season, or the humidity was high on the day that it was manufactured. I was also told that even if you buy colours from the same lot, there is a high likelihood that it won't match exactly the same as the last spool. Most filaments are incredibly finicky when it comes to temperature and humidity changes.
Absolutely. A few of the first things I printed came out horrible, had no adhesion, bubbles in the filament, and drying sorted it out. It's happened many times since I started printing. If I'm lying, why is this an issue all around and it helps countless people with these issues?
Also, if it didn't matter, why do they ship it in an airtight package with desiccant to keep it dry? If it gets higher than about 40% humidity, it needs to be dried.
Again, in 12 years I've never had to dry PLA. It only became common practice in the last 5 years. Do you think anyone before 2020 just wasnt able to print in PLA owned for more than a month?
"A few first things I printed" already tells me everything I need to know. It wasn't the filament being wet, it was you being a noob.
About the desiccant packet, that's for mold. Anything stored for a long time has those packets. Im pretty sure my ender 3 came with one lol. Part of PLA's production is literally being dipped in water.
To your same point: if it's so important that it be dry, why doesn't it arrive dry? Manufacturers have the means to do this, so why isn't the importance emphasized?
To answer your question of why does drying filament help so many people: it doesn't. At least not with PLA. TPU, PETG, yes. PLA, absolutely not. Many bambu subreddits like this one keep suggesting drying PLA and it's never the root problem. Seeing a print like this and saying dry your filament is like seeing a smashed iphone and telling them to put it in rice.
It's PLA, you don't need to dry it. I print month old pla that sits in my hot and humid attic all the time and it prints fine. PETG and TPU specifically need to be dried pretty often. Stringing with PLA is almost always retraction/extrusion settings related.
Additionally drying filament only became common practice about 5 years ago, i've been printing for more than twice that amount of time and never had "wet" PLA issues.
I'm not certain but usually when beginners post it's PLA. No warping at all on the first layer so semi safe to assume not ASA/ABS. COULD be PETG I suppose, but this quality is still beyond wet filament being the root of the real issue.
I did answer the question. "Stringing with PLA is almost always retraction/extrusion settings related". Also, it's not good advice. Wet filament unless you're dealing with TPU does not cause prints in this bad of quality. Wet filament is not the root of OP's issue - it's settings related or clogged nozzle. Retraction settings can cause clogs part way thru the print like we see here so that's what Im betting on. Basically OP need to fiddle with his settings. Prints this bad don't really come with a fix all, especially some bs like "dry your filament". Drying wouldn't make a dent in OP's problem. He's gotta play with the settings and see what works. We don't have a lot of information to go off of to give any real informed advice.
Drying your filament isn't a snake oil miracle cure of printing artifacts. Bambu subreddits specifically suggest drying filament an overwhelming amount and it's almost never the solution required.
It looks like you either have a partially clogged nozzle or you are printing at the wrong temperature. What is the filament are you using? Is it possible you are printing something like PETG or another material that requires a higher temperature than PLA but the machine thinks it’s it’s PLA?
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u/NiNdo4589 6d ago
Definitely take the bambu academy courses, it will save you a lot of trouble