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mathgrrl

Day 168 – Mobius Trefoil

Day 168 – Mobius Trefoil 640 480 mathgrrl

Using the same OpenSCAD code of kitwallace’s from yesterday, today we made a Mobius-like solid whose cross-sections are triangles and whose boundary is the trefoil knot – that is, the knot…

Day 167 – Umbilic torus

Day 167 – Umbilic torus 640 480 mathgrrl

Today we did not print an umbilic torus.  But we did print a triangular-cross-section mobius strip, which is very close. In yesterday’s post we wished for a way to remesh…

Day 166 – Mobius

Day 166 – Mobius 640 480 mathgrrl

Today I spoke with jamesford007, a student at SUNY Geneseo who is spearheading efforts there to bring 3D printing into the study of mathematics. He shared with me his technique…

Day 165 – One-piece catapult

Day 165 – One-piece catapult 640 480 mathgrrl

A student in my GSCI 104: 3D Printing class built a catapult that prints in one piece! Inspired by zheng’s multi-piece Seej Catapult on Thingiverse, zackowen built a new Print in Place…

Day 164 – Two-color gyroscope

Day 164 – Two-color gyroscope 640 480 mathgrrl

Gyroscope time is going to go on for a while! Today we used the Custimizer version of althepal’s Another parmeterized gimbal to make a 6-hoop version and switched filament partway through to get…

Day 163 – Working gyroscope!

Day 163 – Working gyroscope! 640 480 mathgrrl

I don’t know why, but I haven’t had much luck 3D-printing gyroscopes – either from Thingiverse or that I designed myself. It really shouldn’t be that hard, but somehow the…

Day 162 – Sliced level 3 Menger cube

Day 162 – Sliced level 3 Menger cube 640 480 mathgrrl

We are going to be printing a lot of Menger-type objects, I think. Today’s is a level 3, sliced to reveal the stars. Model again by owens on Thingiverse. Here’s…

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…

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…

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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