Craft & Design Fun & Games Woodworking Workshop
How-To:  “Diamond Lock” Puzzle Journal

Here’s another beautiful bit of wooden puzzle design and craftsmanship from Denver metagrobologist Kagen Schaefer. The locking mechanism was recently reverse-engineered by Instructables user dombeef, who has made a working paper version. Our past coverage of Kagen’s work is linked below.


5 thoughts on “How-To: “Diamond Lock” Puzzle Journal

  1. What a beautiful piece of work!  Yet, I believe that there is a slight graphical hoax in the line drawings of the action.  The misimpression being that the triangular pieces as they move against one another can stay exactly within the bounding outer rectangle.  That is, starting with the upper right illustration where there is no central diamond void, move any of the triangular pieces and their boundary will protrude from the bounding box.  (drove me nigh nuts thinking that it would be otherwise)

Comments are closed.


I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I am a long-time contributor to MAKE magazine and My work has also appeared in ReadyMade, c't – Magazin für Computertechnik, and The Wall Street Journal.

View more articles by Sean Michael Ragan