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Energy > Inexhaustible
> Magnetic
Motors > Bowman
> Open Sourcing > Instructions
> Assembly > How to find the magnet radius on your rotors
How to find the magnet radius on your rotors
Sent: Tuesday, January 27, 2004 7:37 PM
Subject: BMM - Latest - Jan 20 2004 posting should be removed
Sterling, you should remove the entry on "Finding magnet radius" posting in
"Latest" for Jan 20 2004 since that was proved to be wrong. I have verified
my new formulas with 3 other replicators and they have responded saying that
they are accurately calculating all scales of units. I have a javascript
program that I want to send to you in a couple of days that lets everyone
calculate these number online.
Sent: Tuesday, January 20, 2004 1:25 PM
Subject: [PES_BMM] Doug's: How to find the magnet radius on your rotors.
Doug sent me a description on how to get my magnet radius measurements for my off the
shelf gears. I thought it was so clear that you can use this for any gears you have that are 2:1.
All you need to know to start is the axel spacing. Here is his description, he asked that I pass
this along to the group. ======================================
To get a understanding of the rotor design lets draw a horizontal line on paper. This
line is the center line of all shafts as you face the rotors like in figure 1. Let us work
with only the large rotor and one small rotor. It is best the draw this to scale. We know that the
two rotors are 4.5" apart. So draw two lines vertical on the paper 4.5" apart. The
intersections of the vertical lines with the horizontal line is the axis of the rotors. We know that
the magnets on the two rotors have two face to face overlappings in common. Also the length of the
large rotors radius is exactly two time the radius of the small rotor as we can balance the forces.
So by drawing lines from the center axis of the large rotor at 22.5 degrees above, and below
the horizontal line the magnets will fall some where on that line when the magnets are face to face.
Then draw lines from the center axis of the small rotor at 45 Degrees above and below the horizontal
line. Where the lines cross will be the center of the magnets radius. To test the design the radius
of the large rotor will be two time the small rotors radius. Using this design process will do away
with the problem of the size of the magnets in regard to the design.
Page posted by Sterling
D. Allan, Jan. 20, 2004
Last updated January 27, 2004
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Bowman
Magnet Motor Open Sourcing Project
