This model is a test for color mixing using an AMS and thin layers. Most, if not all, filaments will be translucent when printed thin, and when another color is placed behind it, it will produce different colors or shades.

It's set to .08 mm layer thickness, and will show what all 2-color combinations the 4 filaments in your AMS will produce, both as a bottom layer and a top layer. The model in the sample picture was made using white, red, yellow, and blue filaments (on the top side, they're numbered 1-4), and it produced different shades plus orange, purple, and green. The effect is slightly different between top and bottom layers due to the extra squish on the bottom layer.

You can test with thicker layers, just make sure to z-scale the model appropriately. So to use .16 mm layers, scale it by 200% in the Z axis. The layers are modeled in, so changing the layer height without resizing the model can cause the wrong color combinations. Translucent filaments may work with thicker layers, but the effect will be less noticable with regular filament.