This is a puzzle with 3 layers, which can take a pretty long time to solve :)

How to solve the puzzle:

When solving this puzzle, the objective is to fit all the pieces in while the holes must be arranged and not overlap with the non-hole area. Eventually, the holes create a pattern in the color of the base.

Solution (spoiler alert):

The solution is given below if you don't know how to continue (aligned with the text on the other side of the puzzle base):

I printed the model with a 0.2 mm nozzle, but it should be also fine with a 0.4 mm nozzle (which I haven't tested).

Printed using the Bambu lab A1 mini printer.