A Tricksy Puzzle

thingiverse

This is my demonstration of a puzzle by Goh Pit Khiam called "Square Fit". The task is straightforward - simply place all seven puzzle pieces into the 7x7 grid. The folding clamshell puzzle can comfortably hold all seven pieces, even if you haven't completed the puzzle yet, making it perfect for popping in your pocket, bag or keeping on your desk. I have included two versions of the lid/tray: - One with 3x2mm recesses for a small magnet (https://www.aliexpress.com/item/32784908257.html or similar) - One without recesses [UPDATE: 20/12/19 Replaced Piece E with correct .stl as original had the part accidentally split in two] Printing instructions/advice: Each part can be printed in one piece, without needing supports. Print at high quality (0.12 worked best for me) for the best accuracy and overall look. To complete the hinge, simply cut a 7cm length of filament and insert it into the hinge. Then place a hinge pin in each end for a neat and tidy look. Print: 1x Tricksy Puzzle Lid (Print with a brim to prevent warping at corners) 1x Tricksy Puzzle Tray (Print with a brim to prevent warping at corners) 1x Tricksy Puzzle A 1x Tricksy Puzzle B 1x Tricksy Puzzle C 1x Tricksy Puzzle D 1x Tricksy Puzzle E 1x Tricksy Puzzle F 1x Tricksy Puzzle G 5x Tricksy Puzzle Tray Pin (Print with a brim for adhesion) You only need two pins, however, printing a few more allows layers to cool sufficiently and means you have spares for when you drop one while assembling... If your hinge pin is too loose as every printer varies slightly, you can experiment with scaling it up slightly. If using magnets, they should be a tight press-fit into the recesses.