HACKTASTIC

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.

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Chronological Archive

Pi Approximation Day – A Holiday for Hacks and Amateurs 1200 675 mathgrrl
Pi Approximation Day – A Holiday for Hacks and Amateurs
Stainless Steel Knots 1800 1337 mathgrrl
Stainless Steel Knots
Print All The Pentagons 1096 822 mathgrrl
Print All The Pentagons
Tetris Houndstooth Scarf 1303 977 mathgrrl
Tetris Houndstooth Scarf
3D Scanning Works, If You’ve Got the $$$ 800 600 mathgrrl
3D Scanning Works, If You’ve Got the $$$
Punch Card Knitting Machine Patterns with OpenSCAD 1238 928 mathgrrl
Punch Card Knitting Machine Patterns with OpenSCAD
3D Printed “Names Dress” – 300 Powerful Women in STEAM 1000 752 mathgrrl
3D Printed “Names Dress” – 300 Powerful Women in STEAM
Designing with Weighted Random Parameters in OpenSCAD 1000 756 mathgrrl
Designing with Weighted Random Parameters in OpenSCAD
Generating Random Mastery Quizzes with Nothing But LaTeX 1058 800 mathgrrl
Generating Random Mastery Quizzes with Nothing But LaTeX
Design Tour: Tinkercad, Fusion 360, OpenSCAD, and Customizer 414 312 mathgrrl
Design Tour: Tinkercad, Fusion 360, OpenSCAD, and Customizer
Perko Knot Reprint: Dissolvable vs. Breakaway Supports 2016 1512 mathgrrl
Perko Knot Reprint: Dissolvable vs. Breakaway Supports
Back It Up: A Guide to Protecting Your Online Content 710 528 mathgrrl
Back It Up: A Guide to Protecting Your Online Content
Just in Time: Clocks! 640 480 mathgrrl
Just in Time: Clocks!
The Snowflake Machine 628 472 mathgrrl
The Snowflake Machine
Knots in OpenSCAD with Sweeper 710 528 mathgrrl
Knots in OpenSCAD with Sweeper
Hinged Triangle-Square 710 528 mathgrrl
Hinged Triangle-Square
Generating Random Constructivist Art 628 472 mathgrrl
Generating Random Constructivist Art
Designing Knitting Machine Punch Cards with StitchFiddle 640 480 mathgrrl
Designing Knitting Machine Punch Cards with StitchFiddle
3D Printing Strong and Sturdy Models 1140 680 mathgrrl
3D Printing Strong and Sturdy Models
Filament Samples and Customizability 640 480 mathgrrl
Filament Samples and Customizability
Schönhardt Polyhedron 628 472 mathgrrl
Schönhardt Polyhedron
Is your 3D model a mess? Make it printable! 840 517 mathgrrl
Is your 3D model a mess? Make it printable!
3D Printed Spacer for Using Sharpies in the Silhouette 964 640 mathgrrl
3D Printed Spacer for Using Sharpies in the Silhouette
Pairs of Packable Scutoids 628 472 mathgrrl
Pairs of Packable Scutoids
SONY Paper for Reading Technical Mathematics 640 480 mathgrrl
SONY Paper for Reading Technical Mathematics
Saddle Surface with Mathematica and Tinkercad 540 406 mathgrrl
Saddle Surface with Mathematica and Tinkercad
3D Printing in South Africa 628 472 mathgrrl
3D Printing in South Africa
Knitting Machine Punch Card Trials 398 302 mathgrrl
Knitting Machine Punch Card Trials
College-level math exploration in 3D at JMU 3SPACE 842 640 mathgrrl
College-level math exploration in 3D at JMU 3SPACE
Rainbow Triple Wrap Bracelet 640 480 mathgrrl
Rainbow Triple Wrap Bracelet
Hex Bowls for Settlers of Catan 640 480 mathgrrl
Hex Bowls for Settlers of Catan
Getting Started on the Brother KH-881 Punchcard Knitting Machine 640 440 mathgrrl
Getting Started on the Brother KH-881 Punchcard Knitting Machine
Dissolvable Support Interface is Everything You Need 640 480 mathgrrl
Dissolvable Support Interface is Everything You Need
Creating Celtic Knots with Fusion 360 640 480 mathgrrl
Creating Celtic Knots with Fusion 360
Unreasonably large bounds on Reidemeister move sequences 600 456 mathgrrl
Unreasonably large bounds on Reidemeister move sequences
Targeted Thickening with Meshmixer 846 644 mathgrrl
Targeted Thickening with Meshmixer
Multicolor 3D Printing, from Tinkercad to XYZ 640 480 mathgrrl
Multicolor 3D Printing, from Tinkercad to XYZ
Three-Sided Cylinder Coins 628 472 mathgrrl
Three-Sided Cylinder Coins
Making Meaning 640 480 mathgrrl
Making Meaning
Family Design Roundup 465 353 mathgrrl
Family Design Roundup
Triple Check Knit 640 480 mathgrrl
Triple Check Knit
Design Exploration with Vectary 1242 808 mathgrrl
Design Exploration with Vectary
Vases in Fusion 360 Two Ways: Lofting and Sculpting 453 344 mathgrrl
Vases in Fusion 360 Two Ways: Lofting and Sculpting
Organic Snowflake Ornaments 710 528 mathgrrl
Organic Snowflake Ornaments
Make One Billion Snowflakes With the Snowflake Machine 1470 978 mathgrrl
Make One Billion Snowflakes With the Snowflake Machine
Text Wrapping with Fusion 360 Sheet Metal Tools 710 528 mathgrrl
Text Wrapping with Fusion 360 Sheet Metal Tools
Turning One Snowflake Into Billions with OpenSCAD 710 528 mathgrrl
Turning One Snowflake Into Billions with OpenSCAD
Leveraging Math and Materials to Make Bangles That Fit 640 480 mathgrrl
Leveraging Math and Materials to Make Bangles That Fit
3D printed fractals at JMU 3SPACE 816 622 mathgrrl
3D printed fractals at JMU 3SPACE
Full Color Un-Manufacturable Part 628 472 mathgrrl
Full Color Un-Manufacturable Part
Here Come the Holidays 348 264 mathgrrl
Here Come the Holidays
Full Color Desktop 3D Printing?! 640 480 mathgrrl
Full Color Desktop 3D Printing?!
Designing for 3D Printed Porcelain 710 528 mathgrrl
Designing for 3D Printed Porcelain
Candy Mold Presses With Fusion 360 640 480 mathgrrl
Candy Mold Presses With Fusion 360
Lightning-Fast Lithophanes With Cura 640 480 mathgrrl
Lightning-Fast Lithophanes With Cura
Quick Design With 3D Slash 1481 877 mathgrrl
Quick Design With 3D Slash
Custom D&D Characters With Hero Forge 1640 1230 mathgrrl
Custom D&D Characters With Hero Forge
Add Custom Heraldry to Tabletop Minis With Meshmixer 1310 917 mathgrrl
Add Custom Heraldry to Tabletop Minis With Meshmixer
FDM=ASAP but SLS=OMG 640 480 mathgrrl
FDM=ASAP but SLS=OMG
Thickening 3D Models With Blender 1072 814 mathgrrl
Thickening 3D Models With Blender
CAD in the Cloud With Onshape 1276 839 mathgrrl
CAD in the Cloud With Onshape
Learn to Fly With Wings3D 2160 1132 mathgrrl
Learn to Fly With Wings3D
3D Design Electronics in Tinkercad 1384 938 mathgrrl
3D Design Electronics in Tinkercad
Repair and Prep Structure Synth Models 640 480 mathgrrl
Repair and Prep Structure Synth Models
Rescue 3D Models With MakePrintable 1990 1238 mathgrrl
Rescue 3D Models With MakePrintable
Everything You Always Wanted to Know About X, But Were Afraid to Ask 710 528 mathgrrl
Everything You Always Wanted to Know About X, But Were Afraid to Ask
Design for Complexity With Structure Synth 936 710 mathgrrl
Design for Complexity With Structure Synth
Oops, Now Your Photos Are TOO Good! 710 528 mathgrrl
Oops, Now Your Photos Are TOO Good!
Easy Pendant Creator Walkthrough 987 788 mathgrrl
Easy Pendant Creator Walkthrough
Learn to Code in 3D With BlocksCAD 1482 914 mathgrrl
Learn to Code in 3D With BlocksCAD
Porcelain Topographic Models with Terrain2STL 840 512 mathgrrl
Porcelain Topographic Models with Terrain2STL
Full-Color Prints from Trnio Photogrammetry 640 482 mathgrrl
Full-Color Prints from Trnio Photogrammetry
3D Design Made Simple With Morphi 1024 657 mathgrrl
3D Design Made Simple With Morphi
Taking Better Photographs of Your 3D Prints 1120 840 mathgrrl
Taking Better Photographs of Your 3D Prints
Wrapping a Thing Around Another Thing 704 533 mathgrrl
Wrapping a Thing Around Another Thing
Parametric Modeling With Grasshopper 840 521 mathgrrl
Parametric Modeling With Grasshopper
SketchUp for 3D Printed Buildings and Beyond 840 630 mathgrrl
SketchUp for 3D Printed Buildings and Beyond
Giant Spiky Perko Knot 640 480 mathgrrl
Giant Spiky Perko Knot
Creating a Community of 3D Educators at the Construct3D Conference 640 450 mathgrrl
Creating a Community of 3D Educators at the Construct3D Conference
Mathematica Brings the Mathematical Bling 710 528 mathgrrl
Mathematica Brings the Mathematical Bling
First Steps with 3D Design Software Fusion 360 1024 735 mathgrrl
First Steps with 3D Design Software Fusion 360
Print Cheaper By Scaling… Up? 1140 640 mathgrrl
Print Cheaper By Scaling… Up?
Painting Multicolor Models in Meshmixer 710 528 mathgrrl
Painting Multicolor Models in Meshmixer
Get Some Variety With Variants 962 472 mathgrrl
Get Some Variety With Variants
Topological Mesh Modeling with TopMod 708 534 mathgrrl
Topological Mesh Modeling with TopMod
Modeling for 3D Printing with Cinema 4D 704 533 mathgrrl
Modeling for 3D Printing with Cinema 4D
Printing the Impossible: Evolution of a Fidget Cube 628 417 mathgrrl
Printing the Impossible: Evolution of a Fidget Cube
Help! 525 398 mathgrrl
Help!
Using Sculptris to 3D Model With Digital Clay 712 521 mathgrrl
Using Sculptris to 3D Model With Digital Clay