Is this 3D model free to download?

Yes, Helicoptrahedron Puzzle is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by Thingiverse. Use the "Download from Thingiverse" link on this page to open the original listing and grab the file, or save it to your print queue in the free Thinger app.

Designed by RyanPuzzle, published on Thingiverse. Please credit the creator when sharing your print.

Can I print this at home?

Yes. This is a printable 3D model intended for home FDM and resin printers. Check the original listing for suggested print settings.

Helicoptrahedron Puzzle 3D printable model by RyanPuzzle

Helicoptrahedron Puzzle

Source: Thingiverse by RyanPuzzle

The Helicoptrahedron Puzzle is a free printable 3D model from Thingiverse by RyanPuzzle. This is my take on Traiphum Prungtaengkit's Helicptrahedron, a tetrahedral shape transformation of Tom Van Der Zanden's Curvy Copter. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

242 saves Source: Thingiverse Updated 2026-10-10 License: CC-BY · commercial OK 1 makes Category: Toys & Games

Tags: cube, dodecahedron, helicopter cube, helicoptrahedron, hexahedron, Karate Lobster, puzzle, rhombic dodecahedron, rubik, Rubiks Cube, rubric, Ryan Beam, tetrahedron

About this model

This is my take on Traiphum Prungtaengkit's Helicptrahedron, a tetrahedral shape transformation of Tom Van Der Zanden's Curvy Copter. This puzzle was printed on a Printrbot Simple Metal in Black PLA, then sanded and polished. I hand-cut the stickers myself. Let me know what you think! I tried a CMYK-type color scheme, unintentionally making the puzzle look like an easter egg. Turning is fine, I could have done some more sanding on the inside for sure. It's also quite large, with and edge length of 100mm. I'll soon make a (predictable) hybrid variation of this puzzle. Any guesses as to what it will be?

Frequently asked questions

Is this 3D model free to download?: Yes. Helicoptrahedron Puzzle is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link above to open the original listing.
Where is the STL hosted?: The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by RyanPuzzle.
Who made this model?: Designed by RyanPuzzle, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?: Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.