PETG Black vs Orange
Hi all,
So I am running some double color prints using PETG Black and Orange. I have noticed that the black is very oozy, while the Orange is not. Not sure what I can do about it, if anything.
Anybody else notice performance differences between black and orange?
I found that I need to print at 236 first/ 234 other and the bed at 84 first/90 other. Anything less than this and the black wont adhere to the spring plate, it rips up even at slow speeds. These temps allow the first layer to look good, then I cool slightly to try to control the ooze. I made some improvements, but I think I might have to abandon black with MMU prints.
Also, I should mention that large areas seems to print ok, its just tiny areas like the feet on the lizard example. Perhaps I am just doing something stupid trying to print small features with PETG, maybe it's just the wrong material?
Re: PETG Black vs Orange
I have both the orange and black Paris’s PET and didn’t notice a difference
However, PETG oozes a lot when it’s wet, so I’d try drying the filament, and keep it stored in an airtight box with lots of silica gel.
Small details should print better as well when dry. First layer can be really tricky. Correct Live-z is crucial and slowing down some helps too.
Re: PETG Black vs Orange
I found that I need to print at 236 first/ 234 other and the bed at 84 first/90 other.
acetone, light scrub with steel wool. 2 degrees won't make or break it. running a bed too hot can also be detrimental depending on what you're printing. fwiw I use 250/240 and 80c bed with das filament and esun petg. assuming this is with fan off?
Re: PETG Black vs Orange
Yes, fan off.
I will do some side by side comparison prints and post, a picture is worth a 1000 words
Re: PETG Black vs Orange
I don't know if this is related, but I found this searching for my troubles with printing my spool of PETG Black from Pursa. I spent hours tweaking settings and printing test prints, and had trouble with the black petg blobbing up and destroying the print.
On one print that I ran overnight, the printer detected a crash and I had PETG stuck to my heating block.
I was getting frustrated and tried the same print with some red PETG from amazon basics and it printed flawlessly with the Slic3r defaults for Prusa PETG.
Maybe something is up with the black petg from Prusa?
I found this issue that said that the black PETG changed some time this year: https://github.com/prusa3d/Slic3r-settings/issues/31
My Orange and Brown PETG from Prusa also prints flawlessly first-try with the default settings in the slicer.
RE: PETG Black vs Orange
@caleb
Glad I am not the only one.
Prusa Orange prints great, but when I use the same settings to print Prusa Galaxy Black (Prusa slicer with Prusa PETG selected) I get filament build-up on the hot end which transfers into blobs on the build trashing the print; at least it tested out the crash detection logic. Also had a shutdown with an overheat warning. Tried chasing settings but gave up. Generic White PETG prints fine.
I did have an all black Prusa.... it now has orange accents on the 3S+ upgrade parts!!