mayko - 8-11-2025 at 17:56
Some weeks back I got a little manic and decided to solve the general polyomino counting problem. I'm still hammering out the details on that but
along the way I printed up a set of pentominoes to putter around with, which is more than I usually have to show for this sort of thing

The shape file is designed around quarter-inch grid paper and includes both reflections of the chiral ones:
Attachment: all_pentominoes.stl (101kB)
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Attachment: monomino.scad (1kB)
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Attachment: domino.scad (276B)
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Attachment: tromino.scad (502B)
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Attachment: tetromino.scad (2kB)
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Attachment: pentomino.scad (3kB)
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Attachment: demo.scad (2kB)
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mayko - 22-12-2025 at 16:25
I need to add, the source files depend on the BOSL package:
https://github.com/revarbat/BOSL
This must be downloaded to OpenSCAD's library folder, which can be located by clicking the File menu, then "Show Library Folder".
I found a rectangular arrangement of the 18 one-sided pentominoes, which takes up less bed space and I'd expect to print faster, though I haven't
actually test printed them yet
Attachment: all_pentominoes2.stl (107kB)
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Attachment: demo2.scad (3kB)
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