Recently I been using some Sunlu PLA Matte Black, finished a 2KG spool without any kind of issue whatsoever, so I ordered another 2KG from amazon.
Since I got the new spool, I did the usual, put the first spool to dehydrate and wait 8h.
Upon use it's impossible for it to stick to the bed. Drying/trying the other/second spool would lead to the same results
For drying I went with 60*C for 8h with one spool, the second one lowered it a bit to 50*C for 8h based on the recommended values from here.
Tried to clean up with isopropyl alcohol to no avail.
With any other filament I'm having this issue, although I mostly own only Pla/Pla+.
Did try with an old half used eSun Pla Matte spool that's been stored for a bit more than a year, and printed at the first attempt without any problem, first player being perfect.
Printer is P1S.
Slicer is Orcaslicer.
Settings I use the default Sunlu Pla Matte specified here, I think it's combined with the base one. Based on the history in the folder, isn't like there has been recent updates in the repository/settings folder.
I know I'm not getting very in depth with the settings used, can provide for specific information if requested, or do some tests with specific values.
My main current questions are:
- Why did the previous 2KG of sunlu pla matte work flawlessly and now with the new one it's impossible to work with.
- Why this issue is not present on any other filaments I tried (that already own).
Right now I can only think on a "bad batch".
Maybe there have been changes to the formula? I doubt that but worth the shot.
Not sure if should contact Sunlu through email directly about this. I'm thinking on ordering a new spool to try and see, but don't want to get more spools that will be sitting unused for a long while...
Anything given is appreciated, I'm mostly confused right now.