Soccer ball shaped polyhedron made of drinking straws
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SoccerVertexX12.stlStandard Tesselated Geometry - 697.35 kB - 10/15/2020 at 02:38 |
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SoccerVertex.f3dfusion - 108.52 kB - 10/15/2020 at 02:38 |
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SoccerVertex.stlStandard Tesselated Geometry - 58.19 kB - 10/15/2020 at 02:38 |
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I started with a dodecahedron.
I made the 3D printed vertex to be a sleeve for all the straws to "plug" into.
Then I realize that it would be faster to print and prettier too if I insert the straw into the vertex!
I found that multiplying the object in Fusion rather than in Cura creates a more efficient packing.
I have 12 in the model then I multiplied it five times in Cura for a total of the needed 60 vertices. I think it took 8 hours to print on the Ender 3.
Files and instructions:
https://www.thingiverse.com/thing:4624175
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There's a start at a parametric openSCAD version here: https://www.thingiverse.com/thing:2587058/files
I'd be happy to help create a general solution given a set of angles, or polyhedron def of some kind.
That'd be cool!
The Truncated Icosahedron is made up of pentagons surrounded by hexagons.
Angle between pentagon and hexagon are 142.62°
Angle between hexagon are 138.189685°
More info at wikipedia: https://en.wikipedia.org/wiki/Truncated_icosahedron
Please let me know the link to the openscad version. when you got it working.
Thanks!
Sure, I'll upload it to thingiverse tonight and add a link to it here.
No guarantee how well the fit would work for everyone's printer. I suppose you could scale it until it fits snugly for your printer and straw.
https://www.thingiverse.com/thing:4624175
PS: Neon22 is going to make an OpenSCAD version too
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With this figure I have just made a modern lamp for my son. Very interesting!