math geek and 3D designer / strategist

HACKTASTIC Blog

A blog about design, math, and failure

Pi Approximation Day – A Holiday for Hacks and Amateurs

Pi Approximation Day – A Holiday for Hacks and Amateurs 1200 675 mathgrrl

The 3D printing community is full of self-taught hacks like me who are DIY “expert amateurs,” meaning that we have lots of experience doing things that are a bit out our league. As recently tweeted by @stevenstrogatz, “if it’s worth doing, it’s worth doing badly”…

Stainless Steel Knots

Stainless Steel Knots 1800 1337 mathgrrl

Knots are embeddings of circles in 3-dimensional space, but they are typically studied in terms of their projections into 2-dimensional space. We can use 3D printed models to investigate knots in a more 3-dimensional way. This series includes nine Stainless Steel 3D printed knot conformations: Tritangentless Trefoil, Figure Eight Stick Knot, Cinquefoil Lattice, 5_2 Lissajous, 6_2 Petal Knot, two (7,2) Torus Knots, 8_19 Hyperboloid Stick Knot, and Midway Perko Knot…

Print All The Pentagons

Print All The Pentagons 1096 822 mathgrrl

Some years back we created the Pentomizer, a customizable model on Thingiverse that could generate all possible irregular pentagons that tile the plane. Although we went crazy making all sorts of things out of those pentagons, one thing we hadn’t done until today is create bulk sets of all fifteen types of tessellating pentagons that people could order from Shapeways. A lot of work goes into creating, packaging, creating media for, and setting up 15 different products. In this post we’ll walk through the surprisingly lengthly process of turning a model into a released product/design on Shapeways and Thingiverse…

Tetris Houndstooth Scarf

Tetris Houndstooth Scarf 1303 977 mathgrrl

You’d think it would be easy to make a machine knitting punch card pattern based on something as simple as Tetris pieces, and I guess it is, unless you want it to be *interesting*. In this post we’ll create a two-colorable houndstooth-inspired tessellation of Tetris tetrominos that is suitable for a 24 x 48 punch card, and go from pattern to punch card, and finally to finished wearable scarf…

3D Scanning Works, If You’ve Got the $$$

3D Scanning Works, If You’ve Got the $$$ 800 600 mathgrrl

3D scanning is a serious pain and in my experience none of the solutions have worked particularly well in terms of capturing fine details… but that’s because I keep trying to make it work with free software and tools. As with so many things in life, it turns out that 3D scanning actually works, if you’ve got the money. In this post we’ll compare scanning options with Trnio, Qlone, Meshroom, and EinScan.

Collaborations

Current projects in 3D design, mathematics, and art

Collaborations

Current projects in 3D design, mathematics, and art

Industry Work

Previous projects in 3D industry and strategy

Industry Work

Previous projects in 3D industry and strategy