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Today we made something very simple: a small, thin rounded tube for turning a scrap of filament into a simple bracelet. Despite how simple t...

In bulk printing mode again. Over the past few days we have printed 100 of the Hinged Triangle-Square models from Day 189 , for a giveaway ...

Today an amazing thing happened. It became possible to print a Sierpinski tetrahedron without internal supports on a desktop filament-based...

Today we printed the famous hinged dissection called the Haberdasher's Puzzle from  Henry Dudeney , who found a way to cut an equilater...

Thank you so much, Hercemer, for making a 41 Piece Spirograph  collection available on Thingiverse! Thingiverse link:  http://www.thing...

One thing I love about 3D printing is that it teaches you how to deal with failure. Lots and lots of failure. Every design I make ends with ...

Easy mashup time: Today we printed SimplusDesign's Wishbone Cookie Cutter Set  on Thingiverse and Eckerput's Rolling Pin Spacer  on ...

Today we made a lot of little pyramids and a box. Why? Can't tell you that right now, it's for a friend and we'll follow up late...

To celebrate today's visit to the  JMU 3-SPACE classroom  from a group of students from  Hiroshima University , we them made a nameplat...

Today we printed a copy of sirmakesalot's clever  Bone Die on Thingiverse using our loaner Afinia H-Series : Thingiverse link:  ...

Printing Borromean rings in three pieces minimizes support because the first two pieces need no support at all. In this model we've used...

Same as Day 179 but with diamonds instead of ellipses! This version of the Borromean rings has more limited mobility but that restricted mo...

Yesterday  we mentioned that you could print a three-color model of the Borromean rings by printing the rings separately and placing the fir...

When I give talks about 3D printing and knot theory, I often tell the story of my student Olivia who created and printed a 3D model of the B...

C's classroom Valentine's celebration was cancelled last week due to snow, and rescheduled for today. Stranded at home for a couple ...

Today we printed a small handful of polyhedra that represent crystal mineral models for geologist Amy Thompson at Bridgewater College . We u...

I don't have a NYC Metro Card, but I hope to in the future. When I do, dadhoc's Slim Wallet with Metro Card Sliding Compartment  on ...

In a couple of days I'll be speaking at the Carriage House , the headquarters of the Mathematical Association of America . Since the MAA...

Thank you, tart2000, for making this lovely LEGO Ring on Thingiverse. My son had a great time adding the bling! Thingiverse link:  htt...

Happy Valentine's Day!  In celebration, today we made a Möbius strip in the shape of a heart. The OpenSCAD code was kindly provided by k...