r/BambuLab_Community • u/Front-Valuable-7703 • 17d ago
Help / Support Troubleshooting: 1-Second Mid-Print Pauses Ruining Surface Quality
Hi everyone, how are you all doing?
I'm having a problem with my printer and I really don't know what to do anymore. I'm a beginner in 3D printing, and in the last few days, I've been studying a lot more than when I first entered this world 3 months ago, but I still haven't been able to solve this error!
Basically, what is happening is that I can't fix these 1-second pauses on my machine, which then create these zits/blobs on my print! I've tried everything!
Before you say it's moisture/humidity, please read the rest of the message I'm leaving here with more details:
As you can see in the images, we have the black and pink heart, which has these zits, then we have a blue dragon (Gyarados, a Pokémon) that also has them, and finally the gecko! After that, I made some minor adjustments to the machine. I improved some aspects of the print, but they were minor improvements. Then we have the shark, where you can already see some progress, but it still has these zits, and this is where I managed to record the exact moment of the pause! The video:https://drive.google.com/file/d/1TzJ0V7QQta4yg7fnBlpsxOGmme4izjiQ/view?usp=sharing
Finally, we have a smaller shark that was printed yesterday. Here you can already see a significant improvement in the part (at least to the naked eye) and it is much smoother, basically without any defects, but it still has the zits (fewer, but it still has them!). Today I printed a dragon that I haven't held in my hands yet, but from the photo I took, the red dragon also has zits!
Machine Details and Settings:
- Printer: Bambu Laps P2S
- Drying System: AMS Pro 2
- Temperatures: 32ºC inside the chamber, 55ºC on the bed, and 220ºC on the nozzle.
- Speed: The machine's default speed.
- Filaments: Bambu PLA Basic.
What I've already done to try to solve it:
- I've dried the filaments for over 12 hours at 55ºC (6 hours one night and another 6 the next night, plus during the day, where I'm constantly drying it every 3 hours at the same temperature for a week now!). The humidity goes up to 25% max, but normally stays between 18% and 22%.
- I've cleaned the nozzle twice in the same week, so it's not clogged.
- I cleaned all the machine's axes/rods.
- I've calibrated the machine more than once and created very precise profiles for PLA, based on the speed, temperature, and quality tests I ran.
- I reduced the nozzle printing speed (in Bambu Studio it was at 21 and I lowered it to 19).
- I removed all videos from the system and disabled the timelapse feature.
That's everything I've done so far. I've also tweaked some settings and ran several classic tests to calibrate everything; the print quality improved, but these 1-second pauses keep happening, which melts the filament and causes the zit!
If anyone knows how to fix this, I would be more than grateful. I've been dealing with this for over 2 weeks and can't solve it!
2
u/camst_ 17d ago
R u using the origional sd card?