Since I migrated from Creality bed-slingers to Bambu (P1S & A1), I have had nothing but nightmares with PETG. 1.5 years, 50k plus videos, every topic I can find, on many forums later, and I am no closer to figuring it out than when I started. I have tried adding heat, subtracting heat, adding & dropping speed, top vents open & closed, door open & closed, I even tried my chamber heat at 30, 35, & 40, tried adding dry time and temp, to no drying (with my Crealitys I never tried drying, no issues). I dry it typically in my Comgrow double roll, usually at the max of 50c, at minimum 12 hours, I wait until it is below 5% on the machines hygro & an added Amazon cheap hygro.
Before buying the Bambu, the only issue I had with Crealitys was tuning the speed/heat. Now I do great with all PLAs, ASA, & ABS, but little to zero luck with PETG. I’ve literally never even been able to have a successful print on the Flow Tests. I’ve tried 7 different brands of basic type, 3 HS, 1CF, I currently have a job in which (as luck would have it) the customer picked out Overture Clear and Starry Blue. Oddly enough, after 24 hours of drying, I went forward, calibrated the Clear perfectly. Then on a whim, I took a shot at the “ice” print, turned out almost as clear as my glasses. I am too stubborn to stop trying it, plus I know it’s possible. There’s too many people have good success, a lot of people use it exclusively.
I’m hoping someone like me, had good success previously, and no luck post-swap to Bambu, and can tell me what helped them. If you have any ideas, I am much appreciative.
Thank you, Cory.
I’ll share results for posterity and/or amusement value.
