Heptominoes
thingiverse
Generating Polyominoes - These Are All 108 Heptominoes with 7 Squares Each. I Needed to Get It Done - I Started Coding Them Up from the Diagram, But Hit a Threshold of Effort Whereupon I Decided to Generate Them Instead. This Turned Out to Be Possible by Modifying Freeman Codes, but Only up to the Point Where Shapes Have Full Holes.
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With this file you will be able to print Heptominoes 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 Heptominoes.