Stellated octahedron
by Wootfish, published
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Summary
I made this model in sketchup following instructions found in the video http://mathforum.org/sketchup/videos.html. Bonnie Roskes (of 3DVinci) made this video, and has many other excellent sketchup tutorials on the site: http://mathforum.org/sketchup/index.html.
There is a nice page for this shape on Wikipedia as well: http://en.wikipedia.org/wiki/Stellated_octahedron
Instructions
In addition to following Bonnie's instructions, I had to remove the internal polygons that form the octagon in order to create a clean STL file. When I skipped this step, I ended up with a model with a hollow center - interesting, but risky to build.
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Thanks to YouTube user therealtechknight for posting a HD video of a makerbot creating the Stellated octahedron! http://www.youtube.com/watch?v=8Y6ZmXBmBZ8http://www.youtube.com/watch?v...
This is really nice but I have been having a lot of trouble getting the piece to stick to the raft, because it has a very small contact surface. I might try cutting it in half. and printing two pieces.
I had no problem getting this to stick with stock settings, however I do have to dial the raft in so that it is just right. It's pretty amazing to see the model build up from that first thin line. Good luck!
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