1-4 Sequential Puzzle remix

This is a really neat little puzzle, that isn't easy to solve for a lot of people :-)

The goal is, to fit the 4 numbers in the frame without using any force.

I changed the original design from PrintedPuzzles a little bit. I made the top and the bottom hight only around 50%, so that it doesn't need as much material as before, made the bottom of the frame solid, and matched the size of the numbers to each other.

For Your convenience I added all parts as separated STLs, so You can print them with different colours if You want. I would only recommend to use light colours for all the pieces with numbers, because the numbers will be better visible.

I printed the numbers with normal support, the frame with tree support. The support could be easily removed after the print. Even if scaled to any other size, on a well calibrated printer the tolerances should nowhere be critical.