Exactly the same as Krisstto and mmongeon provided but with numbers on the top.
Thank you for the design by the way.
I printed it upside down as the bottom side usually turns out smooth.
I printed one without support but the feet did get a little bit lopsided. Second attempt I used auto support in the printer settings and I think it came out looking decent.
Made two files. One with the numbers protruding and one with the numbers sinked in.
I have not tested to print with the protruding numbers yet. Is probably best to print that file with the numbers facing up. Use you own judgment.
box_h_with_numbers_protruding.stl | 280.3KB | |
box_h_with_numbers_sinked_in.stl | 284.0KB |