A quick design in F360. The original picture was found on the net somewhere.
Originally I was making these puzzles from plywood manually. With 3D printing is too easy=)
Printed in PLA with 3 perimeters and 4 top/bottom solid layers.
Layer height: 0.2
I think there is enough play to print this model in one take al combined on any printer, but if you are not confident print every piece separately.