Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:6073508.

First test tray I have made using a Phrozen: Sonic Mighty 4k resin printer. Mistakes were made during and after the print process, but this is how we learn. Besides that, the features such as holes and tapered cuts came out well. Used Phrozen's Aqua Blue as the test, but any resin is suitable for use.

Taper is 45* starting from inside (rectangle is 10mm by 5 mm) and expanding to the outside. Circles are 5mm in diameter. Part has maximum dimensions of 84 x 100 x 150 mm.

Provided SCAD, STL, and OBJ files (non contain embossment on the front) with this model.