This is an insert for the recessed area on the dash on a 2013 F250. It provides a flat surface to mount a stand for your phone. Corner stands are included, but are designed for my phone case. The corner mounts should be easy enough to scale.
The holes in the top were intended to hold cigarette lighter style plugs, but it's not deep enough to be of any use. Holes in the sides can be used for alignment using 1.75mm filament dowels.
I had to make it in 6 pieces because my mini isn't big enough to print it all at once. I glued the 3 front pieces together, and the 3 trays in the back are really there to keep the front from sliding toward the windshield.
It's not perfect, but it's functional (works very well actually), and that's all I was after.
The author hasn't provided the model origin yet.