A nice easy print that only needs support for one of the pieces.
The puzzle is not easy to solve as it requires rotations. I have included the solution document here, but please feel free to try and solve it on your own first if you feel up to the challenge.
this puzzle was designed using Live Cubes and then replicated in Burr Tools.
The STL files were exported from Burr Tools with cube size 10 mm, bevel 1 mm and offset 0.07 mm.