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Tools and Materials for CNC
I'm wondering how big you can go with magnets. Just doing a dome (half a sphere) might be difficult with magnets as connections. If you build a Icosaeder, it is wobbly until the last stick. With the last stick it becomes very rigid. So if you build a geodesic dome you might fix the bottom sticks to the ground to prevent wobblyness.
Very nice toy! I made almost the same formy godchild as christmas present. I used wooden sticks and glued magneticspheres on each end and covered it with liquid rubber (plastidip) for moregrip. With two different length (1:1.414 ratio) you can also build squares withdiagonals and cubes.
Big, auto dim, room clock (using arduino and WS2811)
How to make Electroluminescent (EL) Paint!!
4" Seven Segment Display
1979 Bang & Olufsen Raspberry Pi Internet Radio
1981 Portable VCR Raspberry PI Media Centre
The Fibonacci Clock
Make a 24X6 LED matrix
Dot Matrix Business Card
Audio Cassette Loop