Classic Pyramid Puzzle

AttributionThis amazing puzzle comes originally from the amazing puzzle maker Stewart Coffin (website here) found in chapter 4 of his collection The Puzzling World of Polyhedral Dissections. Other 3D printable puzzles of his can be found here, some of which I may try to model myself too one day!DescriptionThis puzzle is a classic wood working puzzle project. I originally came across it in the YouTube video below and wanted to 3D print it. I searched on MakerWorld but wasn't completely satisfied with the other options already available so I decided to just model it myself!What sets this version apart?There are 3 things that I think make this a better version of the puzzle to print than other models I've seen here so far.Has a reference - I've included a completed version of the puzzle as a solid object to print along side the pieces. The shape can be a little tricky to get your head around and I almost guarantee that no one would be able to build the shape without knowing wh