I printed 2 sizes. One at 100%, and the second at 150%. For both, the final Piece #1, was too large in girth to fit into the puzzle. I had to scale each slightly smaller (96% and 145%) to make them fit. It's probably a function of the printer or settings I used, but it thought I'd mention it. As ricswika said, this is a great use of those end of roll pieces of filament you have laying around. Fine Job.