Transparent surface test sampler 3x3

After my first order of transparent PET-G filament arrived, I wanted to checkout how flat transparent surfaces would look like depending on the thickness.

There were already some transparent test cubes around, but I found no model for my purpose. So here it is.

Both plates are 30mm x 30mm in original size, each square 10x10mm.
Scale non-uniform / individually (x / y / z) according to your test needs.
The models are oriented at 45 degrees, to have printed lines parallel to walls - rotate if you like to try otherwise.

The flat model has 0.1mm steps (for 0.1 layer height or any multiples, when z scaled up).
The second one has 0.2 / 0.4 / 0.6 / 0.8 / 1.0 / 1.2 / 1.6 / 2.0 / 2.4 mm (one in this order, to reduce travel moves, and one moebius like version).
If you want to see other variants, please drop a comment, and I will add some more.

I will also update the description later to add some hints, how to get to better transparency, after having done some tests. I would at le