The Jig

Black Betty... bamalam :)


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Wheel A lowers/raises the lifter magnet D.
Wheel B lowers/raises the bismuth block E.
Wheel C lowers/raises the bismuth block F.

Levitating magnets

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1/8" (d) x 3/8" neo cylinder


5mm (d) x 5mm (h) neo cylinder


1/4" (d) x 1/8" neo disc


1/2" (l) x 1/4" (w) x 1/5" (h) neo block


1/2" (l) x 1/4" (w) x 1/8" (h) neo block


4 3/32" neo cubes with a small fan.

Conclusion to this project;
The levitation jig works very well, with the current bismuth blocks, the jig is capable of levitating magnets upto 3/8" height. It's very sureal to see something suspended with no apparent means of support.
Whilst building and testing predessesors to this model, I discovered that there is a relationship between the weight & height of the float magnet, the depth of the bismuth blocks and the depth of the lifter magnet.
e.g. the bismuth blocks need to be at least 5 times the depth of the float magnet to get good clearance.
The next step is to make some bigger bismuth blocks to levitate one of the 1" x 1/4" NdFeB disc magnets.

If you try this at home, please take a sensible precaution to safety. The bismuth blocks are brittle, the NdFeB magnets are brittle, and great care should be taken when handling molten bismuth.
You are responsible for your own safety.

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