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OS:Screw-Magnet Motor:Variations
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Variations on the Screw-Magnet Motor design, first reported by xpenzif on Oct. 15, 2007.
The objective is to have the main project focus on replicating and characterizing the first working device. This page is for spin-off design consideration and launching.
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Variations
Horseshoe Nails, etc.
Hans von Lieven suggests that horseshoe nails might work, as they are the right shape and composition. [1]
Troyd1 suggests that maybe cement nails. "They are tapered and should be able to be bent to conform to the cylinder." [2]
Freezer suggests "cutting triangular pieces of a metal sheet" [3]
Trimmed Washers
On Oct. 17, 2007, xpenzif wrote:
Screws aren't really necessary, you can build one by cutting washers in half and grinding one side down. Here's a picture of part of a tiny spindle for a desktop toy using the washer design.
This design makes it easy to adjust the angles the washers relative to each other; less change in angle=more torque, more change in angle=more speed, less torque(this can also be accomplished to a degree by changing the magnet arm angle).
This design uses a lot more magnets. I recommend a shaft made from a non-ferromagnetic bolt.
The following diagram was proposed by Jason Owen. 
See also
- Screw-Magnet Motor Open Source Project - home page
- Directory:Magnet Motors
- Other Open Source Projects
