Remake of wooden cube puzzle

My parents bought this puzzle many, many, really many years ago and now that I got a 3D printer I thought, why not make myself a copy :)

To build the whole puzzle you need to print:
1 of piece 0 and 5 and 2 of pieces 1,2,3,4 and 6.

The original puzzle is about 5.5 cm wide.
The printed version is about 4.5 cm wide.
I've attached the scad file where you can adjust the size of the puzzle if you wish.