Inka Cube

This CAD model was designed by Oskar van Deventer, copyright (c), 14 June 2025.

Inka Cube is a shape-mod of a 6x6x6 magic cube, proposed by Edwin Ladronde. Removing eight corner cubes of an NxNxN magic cube is well-know shape-mod. Edwin suggested one step further by wanting to remove also the three side pieces adjacent to each of the eight corners. The result looks interesting, like an ancient Inca ruin. As Edwin lives in Cusco, close to the famous Inca ruins of Machu Picchu, the name of the puzzle felt obvious. As for the spelling, Inka with a "k" is still used in modern Quechua language to refer to a ruler or leader. And also "Oskar" is spelled with a "k". The puzzle mechanism has a 4x4x4 core into which the outer pieces are hooked. The puzzle was prototyped in ABS FDM by Jason Gavril, a.k.a. Chewie's Custom Puzzles. Several rounds of prototyping were needed to get detail right for the ABS FDM technology used.

Here are some links about this design.
https://www.youtube.com/watch?v=PtDwa5ehq7Y
https://www.chewiescustompuzzles.com/puzzleshop/p/inka-cube
https://twistypuzzles.com/forum/viewtopic.php?t=40680

Feel free to 3D-print an extra sample to give to a friend, as long as you mention the designer and don't charge money.

If you are planning to sell some samples, then please contact me for a license agreement. The royalty fee is 10% of your selling price.

Please do not upload the design to a commercial service, or redistribute the design in any way other than linking to the YouTube video: https://www.youtube.com/watch?v=PtDwa5ehq7Y

Enjoy!

Oskar
20 December 2025

Contact: 
https://oskarvandeventer.nl/index_contact.php?subject=Print%20It%20Yourself