No I have not tried PET-G yet though I will at some stage. unfortunately PET-G is attacked by strong alkaline solutions so it is not usable for the current project. The best material for our purpose would be Poly Acetal ( Delrin POM ) but at the moment supplies of Poly Acetal filament are rather limited and the one we could get hold of was far too variable for our use once supply returns to normal we will have another go at it. Mean while we seem to have "dialed in" ABS and Poly amide so we will be using those for a while. On of our other on going project involved strong organic solvents hence the Nylon.

I have seen all the cries for help with ender 3s I wonder how many of them think they have the Genuine Creality Ender 3 but have a second rate knock off.