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Re: Minibot magnets ?
The first "small" minibot that we built used 2 hard drive magnets and worked very well. We used nail polish remover to get the steel brackets off and mounted the magnets with small screws. The next "small" minibot used (1) 28 Lb. magnet from KJ Magnets. The last mini that we built has 2 magnets from KJ --a 28 LB and a 16 Lb. The third minibot is less likely to fly off the pole and damage itself.
My favorite is still the first. As for speed, it is hard to tell, I think the first one is the fastest but when it hits the top, it flies off the pole.
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