Mathematics

Day 144 – Volumes of Hanoi

Day 144 – Volumes of Hanoi 640 480 mathgrrl

The semester has begun and we are back to teaching calculus. Later this semester we will cover Volumes of Solids of Revolution with the “disc method” and the “shell method”,…

Day 143 – Shapeways delivers!

Day 143 – Shapeways delivers! 640 480 mathgrrl

Does it count as a print-a-day print if something I designed and sent to Shapeways was delivered today?  I think it does, at least the first time it happens! Our…

Day 140 – Three Pi

Day 140 – Three Pi 640 480 mathgrrl

My son loves pi. The number. He and a friend at school have actual arguments about who has memorized and/or written down the most digits of pi. The other day…

Day 139 – Stereographic Spheres

Day 139 – Stereographic Spheres 640 480 mathgrrl

Henry Segerman is well-known for the intricate mathematical modeling that he designs and prints at his Shapeways shop.  So to put our Replicator 2 to the test, today we printed…

Day 137 – Clover knot

Day 137 – Clover knot 640 480 mathgrrl

More TopMod! Today we made a knot: STL file: http://www.geekhaus.com/makerhome/day137_cloverknot.stl Thingiverse link: http://www.thingiverse.com/thing:224032 Settings: MakerWare .15mm/high with raft and supports, in 6 hours and 23 minutes. I didn’t use the custom knot…

Day 136 – Six Handles Fancy

Day 136 – Six Handles Fancy 640 480 mathgrrl

Today we took yesterday’s TopMod model and created crusts along certain face loops to get a more open, fancy, swirly design: STL file: http://www.geekhaus.com/makerhome/day136_sixhandlesfancy.stl Thingiverse link: http://www.thingiverse.com/thing:223250 Settings: We used the same custom…

Day 135 – Six Handles

Day 135 – Six Handles 640 480 mathgrrl

Today’s model is a sculpture made with the excellent and innovative mesh-wrangling software TopMod. Since my way-back math roots are in topology, TopMod is like coming home; everything about it…

Day 133 – Broken Hearts

Day 133 – Broken Hearts 640 480 mathgrrl

Today the holiday visits are over and we are back to designing. Something simple to start, and to get ahead for the next holiday: customizable easy-to-print broken hearts that you…

Day 132 – Stretchy Bands

Day 132 – Stretchy Bands 640 480 mathgrrl

To finish out the Thanxmas presents, today we printed some of walter’s Customizable Stretchy Bands model from Thingiverse. STL file: http://www.geekhaus.com/makerhome/day132_stretchybands.stl (but customize your own!) Thingiverse link: http://www.thingiverse.com/make:61047 Settings: MakerWare .3mm/low on…

Day 128 – Pile of Snaps

Day 128 – Pile of Snaps 640 480 mathgrrl

Today we printed a lot of colorful Poly-Snaps to give to Henry Segerman: Settings: MakerWare .3mm/low on a Replicator 2. Technical notes: These were printed in two configurations, some with the…

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