Inward Ring

This CAD model was co-designed by Yael Friedman and Oskar van Deventer, copyright (c), 2 April 2024.

Inward Ring was a design challenge by puzzle-ring artist Yael Friedman (https://www.artsy.net/artist/yael-friedman). Whereas the classic three-piece Magic Disk puzzle (http://www.2ndlook.nl/3dpuzzles/puzzles/magicdisk/engdescription.htm) opens by moving the pieces outward (e.g. via centrifugal force), Yael wanted a similar ring that opens by moving the pieces inward. This was achieved by making a large hole in the middle and changing the shape at the middle layers to block outward movement. Several rounds of prototyping were needed to get the shape of the pieces right, such that they can swivel after moving inward and then get separated.

Here are some links about this design.
https://www.youtube.com/watch?v=3lXU1bpwFI8
https://i.materialise.com/en/shop/item/inward-ring
https://www.shapeways.com/product/STZEZYF24/inward-ring
https://i.materialise.com/forum/t/inward-ring-bt-yael-friedman-oskar/3686
https://twistypuzzles.com/forum/viewtopic.php?t=39521

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=3lXU1bpwFI8

Enjoy!

Oskar
27 July 2024

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


