P1S and PETG

Bambu Lab P1 Series Troubleshooting
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Hello. I have been having a terrible time trying to get generic PETG to print properly on my P1S. It generally looks like a bomb has gone off inside my printers and there fragments all over the place.

I was very excited to find the article by Donnie called " Bambu Lab X1 Carbon PETG Settings – Get Perfect Prints" - Dated 23 Dec 2023 (By Donnie) as it showed exactly what I was seeing when I try to print using PETG.

So this morning I set about creating a new dedicated profile to mirror the settings so comprehensively laid out in the document, only to find that I couldn’t even find the settings from the first screenshot (filament diameter, flow rate etc). I assume that this is because a new version of BambuLabs Studio has either moved them or rolled them into a different location. But I can’t find these anywhere (I am using the in-built search to try and find the settings.

Does anyone know if this is no longer accessible, or am I just looking in the wrong place?

Donnie’s article is here: Bambu Lab X1 Carbon PETG Settings – Get Perfect Prints

I am using a BambuLabs P1S Combo.
Firmware Version is 01.05.02.00
BambuLabs Studio Version: 1.9.1.66
Filament: Generic PETG Black

Thanks for any assistance.

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OK, so I went and watched another video that filled in these blanks. I have the filaments tab now, please feel free to ignore this post.

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Just one opinion: I think the guide is fine for the original BambuLab PETG filaments, which seems to be quite a specialty.
For all other PETG brands that I have tried, I had far better results with very different settings. Typically I use a nozzle temperature of 240°C and I have reduced cooling to 20% for both part cooling fan and auxiliary fan (if you have that). I have also disabled all cooling modifiers like increased cooling at small layer times and on overhangs. To me, it seemed to hurt more than help.

2 Likes
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I’ll second the cooling being off. Started this on an open chassis printer, and continued on the P1s. Seems to help PETG alot!

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Try drying your PETG (25 char)

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I’ve only printed PETG in my P1S for about a year now with no issues. I recommend you get quality PETG (I personally use Polymaker) as I’ve tried others and ran into issues. Slow down speed on the slicer, specially the first layer. I also tend to use “infill combination” as well to prevent the nozzle from clogging up.