When is ABS-GF better than PETG-CF?

[scotta316]

I think I bought the wrong filament. I’ve been working on a silly little project that is a simple flashlight holder. I decided I wanted something that would flex less than the ABS I had already used, so after consulting the filament guide (which is way too hard to find, by the way), I chose ABS-GF based on the recommendations under “Structural Parts.” I probably should have been looking under “Functional Parts” instead, but I find the lines between the categories blurry.

Anyway, after I ordered it, I discovered that PETG-CF seems to have better specs in every category, not to mention the recommended drying temperature is within my dryer’s range, which ABS-GF is not. I’ve read and re-read the descriptions several times and am at a loss for what circumstances would make ABS-GF a better choice. By the way, PETG-CF is not even listed under the “Structural Parts” section, which confuses me since it seems to rate better in every category, so I’m clearly missing something.

[Lenyo]

You should be fine on the dryer range, just go as high as you can and it might take a bit more than the stated time.

They are quite similar in spec with some basic differences:

ABS-GF heat resistance is a good bit higher.
PETG-CF layer adhesion is much better.

So i think those are the things that would make ABS a better choice, if you specifically need the higher heat resistance. Maybe some UV differences too, if its always out in the sun in arizona then maybe ABS-GF is better for long term use.

[JonRaymond]

I’ve been really happy with Bambu’s ABS-GF. It’s much easier to print large parts without warping issues.