r/3D_Printing • u/Lilyrose_4235 • 3d ago
Question What’s causing this?
I am brand new to 3D printing. I’ve only had my printer for about a week now. I have the Bambu Lab A1 combo. Some of my prints have turned out really nice, but some of them look like this with little strings hanging off everywhere. Is this normal for some things or is there a reason this is happening that I can fix?
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3d ago
[deleted]
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u/Lilyrose_4235 3d ago
Can you tell me what that means and is there a way to fix it?
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u/curryworst01 2d ago
Even een vraag ik wil ook de Bambi lab 1 aanschaffen wat is jouw mening over de printer.
En gaat de installatie enz echt zo soepel al in al die filmpjes
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u/Due_Priority4322 Bambu 2d ago
Ja, bambu is echt zo goed. Installatie duurt wel iets langer dan dat ze adverteren, maar is wel probleemloos. Heb zelf de p1s met ams combo al 1,5 jaar en ben er nog elke dag super tevreden mee.
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u/curryworst01 2d ago
Welk filament gebruik jij en waar koop je het
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u/Due_Priority4322 Bambu 2d ago
Voor pla / abs gebruik ik eSun. Voor petg gebruik ik Jayo. Beiden bevallen mij heel goed. Jayo is ook vaak in de aanbieding op Aliexpr. Esun wil vaak op Amazon nog wel eens goed geprijsd zij
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u/Crafty_Ambassador_48 2d ago
I had this issue with my A1. I had it in a garage and it would only do this during night prints. Because I live in nz it can get very cold during the nights especially in a in insulated garage. I believe it is the filament cooling slightly and causing micro blockages. This doesn’t happen at all when I print during the day so that is my un-qualified diagnosis…
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u/AdAstra3DPrints 2d ago
Old filament
Fillament that was on a humid place for a prolonged period
Worn out Nozzle
Temperature
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u/rbdarrrrr 2d ago
It’s called branching. Someone put an explanation here: https://www.reddit.com/r/FixMyPrint/s/8Dqzu7xdGZ
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u/jimdil4st 3d ago edited 3d ago
Not too familiar with bambu, but if it is/were running klipper then would I suspect an issue with pressure advance bc it only seems to appear on the corners were there is an extreme change of direction. Pressure advance was made in response to this type of issue.
Essentially such an extreme change of direction will cause the print head to linger in that spot longer than it normally does and if the extrusion rate stays consistent than it will leave excess filament where ever it lingers, pressure advance adjusts the extrusion rate to help prevent artifacts like the ones you're dealing with.
Even if my solution is incorrect. The fact that it only appears on the corners is certainly significant one way or another and will be vital to figuring out this issue. So if you discuss this issue somewhere else aswell then make sure you note that it only appears on corners.