Double Kumiki Puzzle

my version of the double kumiki puzzle (yeah I know that name implies its wooden, but you can print in wood filament if you want!
the original is from
https://www.artofplay.com/products/double-kumiki-puzzle if you like the puzzle, consider purchasing their beautiful wooden version.
this is an extremely tough puzzle to assemble if you cant figure it out youtube has some solution videos. even knowing how to put it together it took me almost an hour to get it together the first time. after getting used to it I can put it together in minutes now.