3D Printing
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Day 161 – Level 3 Menger cube on a filament printer!
Day 161 – Level 3 Menger cube on a filament printer! 640 480 mathgrrl

Thank you, owens at Thingiverse!  You have made the impossible possible.  It was great fun walking this print around the math department today, since everyone there knows just how difficult it…
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Day 160 – Stella prints!
Day 160 – Stella prints! 640 480 mathgrrl

This is what happens on the first day that an 11-year-old girl and an 8-year-old girl learn how to design 3D models. The first day! I look forward to the…
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Day 159 – Catan expander
Day 159 – Catan expander 640 480 mathgrrl

At our house we have enough extra hex tiles to play a five-person Catan game, but not a fifth set of pieces. Today we printed a new full set of…
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Day 158 – One hundred fidget cubes
Day 158 – One hundred fidget cubes 640 480 mathgrrl

Actually, it’s 105, counting the ones that are printing in the background. We’ve been making these all week; they print fairly reliably in batches of a dozen. We need to…
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Day 157 – One-piece Menger cube without internal supports
Day 157 – One-piece Menger cube without internal supports 640 480 mathgrrl

The Holy Grail!  Owens’ model Menger sponge with external support prints a beautiful Level 2 Menger sponge with no internal supports. The difficulty with printing a Menger sponge on a filament-deposition printer…
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Day 156 – Olee’s designs
Day 156 – Olee’s designs 640 480 mathgrrl

Today we printed some custom bracelets for my niece, who mailed us a very nice letter that included some awesome designs to start from.  Her designs were so good that…
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Day 155 – Menger slice
Day 155 – Menger slice 640 480 mathgrrl

Today we printed owens’ Diagonal Cut Menger Sponge design from Thingiverse. If you sliced a Level 2 Menger sponge in half along a diagonal plane as shown in the picture,…
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Day 154 – First Digitizer Print!
Day 154 – First Digitizer Print! 640 480 mathgrrl

To break in the new MakerBot Digitizer in the JMU 3-SPACE Classroom, my student Patrick scanned and printed a beautiful African woman statue that another student gave me as a…
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Day 153 – Stick and lattice trefoil knots
Day 153 – Stick and lattice trefoil knots 640 480 mathgrrl

To finish our collection of trefoil conformations, we have a stick knot and a cubic lattice knot: STL file for stick: http://www.geekhaus.com/makerhome/day153_trefoil_stick_40_25.stl STL file for lattice: http://www.geekhaus.com/makerhome/day153_trefoil_lattice_40_25.stl Thingiverse link: http://www.thingiverse.com/thing:234107 Technical…
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Day 152 – Petal and tight trefoil knots
Day 152 – Petal and tight trefoil knots 640 480 mathgrrl

Two more trefoil conformations – as a petal knot (all crossings line up along one center stem) and a tight knot (with the smallest amount of rope length possible given…

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