Grill dimensions?

[KevinRS]

I am kind of just testing to see how well the HT-PLA works. Haven't found info on it breaking down rapidly due to moisture. Generally heat and UV are the issues, some videos seem to show a higher heat resistance than I expected. For temporary cosmetic parts UV shouldn't be too much of an issue, and you could always paint.
Supposedly PLA is compostable, but it takes sustained temps of 140F/60C+ with plenty of moisture for months to break it down.
Annealing happens at 80-100C to improve stability up to 150C
Apparently the non-glass filled becomes more stable, but under stress can deflect closer to 60C
I have measured temps in a car in the sun up to ~160F which is 71C. I would hope it doesn't get as high as 100C which would have a container of water left in the car actually boiling.

I think it's possible even the non-glass type might work for temporary external parts, like holiday themed light covers, and low stress internal parts. For something like a phone mount, probably need the GF type and careful orientation. Testing needed.
I've printed one swatch, will print some more tomorrow, and also some GF swatches. will stick some in the AC vents of both types, and annealed and not annealed, once I figure out an annealing process.

 

[Tom Sawyer]

TLDR (Why do we put these at the end?): Go with ASA if you can. If you can't get the setup to work, try PCTG.

Oh, and sorry for the long first post!

3d printing isn't my jam, but I admire & appreciate the time and effort you made to share your knowledge and experience with the community here. That's a good thing! No need to apologize at all.