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Yavuz Demirhan is a prolific Turkish puzzle inventor with nearly150 published designs at Puzzle Will Be Played ( http://puzzlewillbeplayed.com/-/designer/Demirhan.xml ).
Tetradyma is one of his latest and is unusual in that it requires four identical pieces to fit into a cube shape. It is also printable without needing any support material.
I would rate it as tricky but not difficult - a great design to give to novice puzzlers.
The model includes a 0.1 mm offset and is based on 8 mm unit cubes. Although it could be scaled, be aware that this will change the tolerances and will affect how well the pieces fit together.
I printed mine in PLA using 0.2 mm layer height, 0.4 mm extrusion width and 40% infill. I used Slic3r 0.98 and printed all 4 copies at the same time, using the More button.
Tetradyma by Yavuz Demirhan by richgain is licensed under the Creative Commons - Attribution - Non-Commercial license.
So what's this mean?
We're sure richgain would love to see what you've printed - take a photo and share it on Thingiverse as a Make.
To post a Make simply visit this Thing again and click I Made One to start uploading your photo. You can also download the Thingiverse Mobile app (available via Google Play and Apple App Store) to take a photo and upload your Make right from the app!