Heptagon Disc Puzzle

prusaprinters

<h3>Heptagon Disc Puzzle (small & large)</h3> The object of this puzzle is to stack all the discs onto the base with all 21 pegs placed inside the discs peg holes, with no pegs left over or sticking out the top or bottom. The letters are only used for naming each disc and have nothing to do with solving the puzzle. The small and large puzzle are exactly the same. The smaller puzzle is provided here for those that want a small puzzle that can be printed faster on their printer.There are 177,843,714,048,000 possible distinct permutations of discs, with at least 4,000 distinct solutions. Distinct solutions are those which cannot be inverted to produce another distinct solution. We suspect there are a great many more.For those of you who like a less challenging puzzle, you might want to try my easier Pentagon Disc Puzzle. It has only 7 discs, 10 pegs, and 5 holes per disc.You will need to print the following .stl filesFor the large puzzle the following files should be printed:17 disc files: 1 copy of each: Large_Disc_A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, and Q. Large_Peg.stl, 21 copies of this file. (Easiest to load Large_Pegs.3mf file into the slicer.) Large_Heptagon_Base.stl (1 copy) Large_Heptagon_Cover.stl (1 copy) (Optional, not necessary for solving the puzzle.)For the small puzzle the following files should be printed:17 disc files: 1 copy of each: Small_Disc_A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, and Q. Small_Peg.stl, 21 copies of this file. (Easiest to load Small_Pegs.3mf file into the slicer.) Small_Heptagon_Base.stl (1 copy) Small_Heptagon_Cover.stl (1 copy) (Optional, not necessary for solving the puzzle.)Peg storage boxesI have added a large and small peg storage box (optional). The files are:Large_BoxLid.stl,  Large_BoxBase.stl,  Small_BoxLid.stl,  Small_BoxBase.stlPrinter Settings (Prusa MK3s+)Common settings to all stl files:   Filament:      PLA    Nozzle:        0.4 mm    Layer height:  0.2 mm    Perimeters:    2    Solid layers:  6 top, 5 bottom    Fill density:  15% to 20%    Fill pattern:  Grid    Elephant foot comp:  0.12 mmSupport is recommended, but not necessary, at the build plate for the Assembly Cover and peg storage lids. The other parts need no support. (For the Large/Small puzzle, I also added a "torus" support blocker on the outside edge to save filament. It is not necessary to add this "torus".) Seam positions:   Aligned:  Pegs, Discs, Base, Storage Box Lids    Random:   Cover, storage box basesFilament color changes:If you want to use different colored filaments as I did, here are the filament height changes for each model:For large puzzle use the following values:   Base: 10.2 mm    Cover: 0.8 mm, and 1.6 mmFor small puzzle use the following values:    Base: 9.2 mm    Cover: 1.0 mm, and 1.6 mmFor the peg storage boxes the color changes are:   Large Lid:   1.0 mm, and 1.8 mm    Small Lid:   1.0 mm, and 1.6 mmInspired by the "Hexa Dowel Puzzle", by Creative MinerX, I proceeded to design my own variations to his original puzzle.  Credit goes to him for his creative award winning design. Check his puzzle out here:<a href="https://www.prusaprinters.org/prints/28634-hexa-dowel-puzzle/comments#comment-181148">https://www.prusaprinters.org/prints/28634-hexa-dowel-puzzle/comments#comment-181148</a>For those of you who would like a hint solving the puzzle, download and look in the Heptagon Disc Puzzle.pdf file in the Files section.

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With this file you will be able to print Heptagon Disc Puzzle with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Heptagon Disc Puzzle.