You might be right. I just used slic3r to slice it and print it and it came out dead near perfect.
Have you tried another brand of PETG? If you send me the file I will print it using my PETG as a comparison.So, I found an article on improving PETG prints that laid out the reasoning for various settings. And it’s made some improvements, but hasn’t fixed it entirely.
The authors main argument was to avoid over-extruding. Avoid the pile up of melted filament accumulating on the nozzle. Raise the live Z. Thicker layers. Reduced flow adjustments. And, I’ve certainly seen a reduction in surface blobs - on the print and way down (but not gone) on the print.
But the inside of the print is still stringy. As seen below. The only time it wasn’t was when I forced outer shell before inner shell. But that print was bad, I think because I had set too much retraction and extrusion started late and spotty.
It always oozes so much after stopping. I have the extrusion tuned for wall thickness- I wonder how much I can turn it down? And maybe reduce the infill speed - it looks pretty high.
The only suggestion I can’t implement in Cura is a 5mm wipe at the end of a layer. Cura limits you to 2x the nozzle diameter.
View attachment 381618
Could you send a link to the article.So, I found an article on improving PETG prints that laid out the reasoning for various settings. And it’s made some improvements, but hasn’t fixed it entirely.
The authors main argument was to avoid over-extruding. Avoid the pile up of melted filament accumulating on the nozzle. Raise the live Z. Thicker layers. Reduced flow adjustments. And, I’ve certainly seen a reduction in surface blobs - on the print and way down (but not gone) on the print.
But the inside of the print is still stringy. As seen below. The only time it wasn’t was when I forced outer shell before inner shell. But that print was bad, I think because I had set too much retraction and extrusion started late and spotty.
It always oozes so much after stopping. I have the extrusion tuned for wall thickness- I wonder how much I can turn it down? And maybe reduce the infill speed - it looks pretty high.
The only suggestion I can’t implement in Cura is a 5mm wipe at the end of a layer. Cura limits you to 2x the nozzle diameter.
View attachment 381618
Could you send a link to the article.
Great link, thanks for that. Interesting that he does not recommend switching between PLA and PETG using the same nozzle. I do that routinely and now may have to rethink it. I've through the Slic3r manual and it does a good job of explaining the settings, but of course it does not say how they should be adjusted for different filaments. And not all slicing software uses the same terminology or even has the same number of settings.
'Plug and play' this ain't!
Tony
CHEP just uploaded a new video on PETG using his slicer of choice, Cura. Anyone having PETG issues might get some good info or tips from this.
Great video!
I need to try that neon green Prusament PETG.
29mm paper motor mount fits in as a liner.
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