Six Pieces Star Puzzle

This is a design based on a puzzle I have had for 30 years. Six equal pieces can be assembled to form a star.

The pieces fit exactly, so unless your printing quality is superb, you may need to polish the two cuts of each piece (where it touches the others).

If you are not interested in trying to figure how to assemble them, the solution is presented in

https://www.youtube.com/watch?v=p4yy30KvoAI

Pieces look a bit different, but the idea is the same.

I provided two solids: the pie