Hello everyone, I own a P1S for a few weeks now. For the first printed parts I used the green sample PLA shipped with the printer. The parts look good so far. To get more into the topic I bought some inexpensive white Sunlu PLA+. The results also look good after determining correct PA, flow rate an…

[image] da-mkay: I already put the PETG for 4h in the oven to dry it (although it is new and was vacuum-packed). Nothing changed. It is recommended to try and dry the filament for a longer period. It seems like the small dots might be related to some remaining moisture in the filament.

It is recommended to try and dry the filament for a longer period. What is a good drying time? Extrudr itself write on their website, that their PETG should be dried at 60°C for 4-6 hours. However, they wrote me via eMail that no drying is necessary, if I use the filament right after unpacking i…

[image] da-mkay: What is a good drying time? That is a very wide open question and there unfortunately isn’t a simple answer. Drying time has a huge dependence on ambient humidity. And then there is the question of knowing when drying is done - how do you know? There aren’t many solid answer…

I was drying mine @125° for ~24 hours, anything longer didn’t seem to lose much weight

Now I dried it for 19 hours in my Sunlu S2 @65°C. I weighed the spool before and after drying. Before drying it had 1191,6g. After drying: 1191,6g. So no measurable loss here. And the next test-print did look the same. Do you still think it is wet filament? What else can cause this? I found someth…

I have had the same issue with my PETG. Purchased from Bambu labs, and others. Seems to happen more on the horizontal surfaces too. Walls look very clean.

Hm, today I tried a sample of a black PETG of a different brand (Redline). After drying it for about 14 hours I got the same result. What can I do?

Did you guys try to disable the “slow for overhang” setting?

Yes, I tried with and without „Slow down for overhangs“. I also tried a full maintenance including disassembly and cleaning of the extruder. Nothing really changed. One day I printed 8 cubes. One after another with different settings. And it looked like increasing the speed reduced the number of a…

[image] da-mkay: And the spool is stored in a dry box, where I put a lot of silica gel in and my humidity sensor (Xiaomi) shows a pretty constant low value of 11-12%. That silica gel will distort what’s actually going on. Try without desiccant and see where the humidity goes. If you have the …

Minor issue with PETG

Bambu Lab P Series Troubleshooting

NeverDie September 26, 2024, 9:36pm 16

Here’s a link giving an example of how to do it: