Category: Puzzles and Other Fun Things

An Invitation: Gathering 4 Gardner Celebration of Mind 2016

We are excited to be once again hosting a fantastic day sharing interesting puzzles, maths, magic & science. Letchworth Garden City, Hertfordshire  Saturday 22nd October     What is G4G? Martin Gardner was an American writer who pioneered the field

3D Printing Impossible Objects

When metagrobologist David Singmaster gave his talk on Impossible Grilles at MathsJam 2015, it inspired Simon to print some of these “impossible objects” using the THREEDY 3D Printer he happened to have to hand.  Whilst travelling around medieval cities, particularly during Italian

Ambiguous Cylinders on the West Highland Way

Simon and his family enjoyed their summer holiday walking the West Highland Way – yes, all 96 miles of it. Greetings to the physicists from University of Munster, with whom we shared these Ambiguous Cylinders. The ambiguous cylinders were printed on a THREEDY

Interesting Variants on Tetrahedral Geometry

If you are lucky enough to have received some of our Tetrahedral Shapes and are looking to check your answers to the questions, you have come to the right place! Need more copies of the handout? Download a pdf here:

Bathkes, Bexahedrons & Triakis Truncated Tetrahedrons

Simon is back from Atlanta, having had a great time at G4G 12 Several THREEDY 3D printers spent a couple of days batch printing 1000 shapes for Simon’s G4G 2016 Exchange: an introduction to Join-The-Dot-Geometry™   Please follow us:

Trigantius Go Tournament

THREEDY 3D Printers is sponsoring Cambridge Go Society‘s annual Trigantius tournament tomorrow – you can expect that the prizes will include puzzles printed by our THREEDY 3D Printer! Go is one of the world’s great strategy board games. It originated

Merry Christmas & Happy New Year!

We wish all of our customers, friends and supporters a Merry Christmas and a Happy New Year. love from all at THREEDY We will be back in 2016! Please follow us:

Simon’s Christmas Churches Puzzle

Can you name all of these churches? (follow the link to open the puzzle in a pdf file) Bonus points if you are able to send photographs of yourself in front of some of them! Christmas Churches Puzzle 2015 The

Social Media Ezi-gami Competition

Have you seen our Ezi-gami Shape on Facebook & Twitter? NAME THIS SHAPE on either our Facebook & Twitter posts. The winner will be drawn from the correct answers on Friday 4th December at 10 am and will receive an Ezi-gami

Christmas Gift Inspiration?

Have you browsed our shop recently? There have been a few fun new additions. Worth a look (perhaps some Christmas gift inspiration?)   Please follow us: