Working Attraction Magnet Motor on Youtube!?

[paulshroom]

Extremely sorry my mistake.
I have seen all different type shapes of screws you may want to consider.
This may be worth pondering?
http://images.google.co.uk/images?hl=en&q=screw&oe=UTF-8&um=1&ie=UTF-8&sa=N&tab=wi

[zero]

well, he had to flatten the screws so that the Neos would get closer to the screws.
Looks like your version is a little too far for the attraction forces to grab hold.

Also, it almost looked like the stator was at an angle to the rotary disc -
thus the top magnets were further away from the rotor than the bottom
magnets.  Maybe it was a perspective trick tho,  Not sure.

[billmehess]

Take a look at my replication
www.youtube.com/watch?v=DQAWmUm6fEs

I can get about a 1/4 turn at this point. Screw placement is very critical. I noticed that the area where the 1/4 turn (about 2 1/2 screw lengths) is slightly different in configuration than the rest of the arrangement so I will attempt to replicate that throughout the whole surface of the coil.
I am using a 3 in. pvc with 1" screws
Bill

[zero]

 Ok, I think I see problems with both replica's...

(besides the grinding)


  The VERTICAL distance between your screw placements are way too far apart.

When you look at the original, the screws flattened Ends (large end) are not
even spaced a  millimeter vertically from the next screw below it.   The reason
it doesnt touch, is because the screw below is placed a bit to the side of it.

Very easily,  just run the video clip, and pause it when he flips the thing up
showing the underside,  and enlarge to full screen.   Get the right correct spacing,
(and angles) as that seems to be very important.

[zero]

Remember also, you have to think in 3d.   If the screw head is not
flattened... the magnets will be trying to pull only the outside lip...
and cant get a good grip on the thing.

The flattened head allows the magnet a much greater surface area
to grip onto.   And because its flattened,  you can place the magnets
even closer to the screws, giving them even more pulling power.