Core One PETG Notes
I originally posted in a thread about PETG printing issues, but it turns out that my Core One prints like a dream 99% of the time. The other 1% has been horrific. 😉
I've been using the steel textured powered coated (PEI?) plate with great success. That is, until I tried to print the Prusa CORE One MMU3 Community version side plates.
Oddly, I was able to print one of the plates without any issues at all! However, it seems that as the textured steel plate got used, and even when cleaned with 100% ethanol, it started to not work will with the finer aspects of this print job.
I ran all the usual tests, and they printed 100% without issue. It was just freak'n weird.
(I'm using Elegoo Rapid PETG in black, as well as Prusament PETG because it's just wonderful... though, not to be rude, but Orange is not my schtick. (American English for not my favorite... says the German guy.)
Anyway, the issue was completely solved, after much banging of my head on my desk, with "Nano Polymer Adhesive - High-Temperature Buildplate Glue." I'm positive that other products will work just as well... that's just what I had laying around from the old days of my, er, crappy Creality Ender 3 V2. (Yes, I've died an gone to heaven with a Core One... which has not stopped being used since it arrived fully assembled by Prusa.)
In short: Core One, PETG works great, fine printing can result in stringing and my require bed adhesive, this was especially noticeable with the Prusa Core One MMU Community Edition side plates and buffer base due to the fine texturing. The issue only occured with the textured steel plate that had a large number of print jobs on it. (Note: The steel plate has only been used for PETG.)
Since I'm a noob, I'm sure I might have missed something.
RE: Core One PETG Notes
I was having some really bad blob buildup (Overture PETG, 14% humidity, satin plate) which went away after a quick mid-print tweak to flow factor on the tune menu. 97% seemed the number. But I also noted the filament profile is hotter print head temps than Prusa suggests. Smaller prints had worked fine, but larger prints the blob would eventually stick and cause alignment issues. No adhesion issues with PETG so far.
I'm learning as I go so probably nothing new here, lots more to learn.
RE: Core One PETG Notes
That's just PETG being PETG. Loves to do this with fine details such as honeycombs. In my case I use Layerneer, which usually does the job. Or adjust the live Z offset a but by long-pressing the knob just when the print starts.
Formerly known on this forum as @fuchsr -- https://foxrun3d.com/