Oscillating Reed Switch Pulse Motor.

[OrionLightShip]

is the shaft a brass brazing rod?
and how to source the coil?

[OrionLightShip]

Ok, I have two coming.
Have to go to Lowes tomorrow so I'll pick up the heavy duty coupling while I'm there.

[Allen Burgess]

K@J magnetics

RC4CDIA

3/4" od x 1/4" id x 3/4" thick
Nickel Plated
Diametrically Magnetized

$9.81

https://www.kjmagnetics.com/products.asp?cat=16

We'll be spinning this 3/4" diametric tube magnet with over 20 pounds of pull force! You might want to order two for the same shipping cost. Don't worry about reading that link, it's too eclectic.

[Allen Burgess]

These are pictures of perhaps the World's first Internaly Motorized Alternator, minus the output wrap.

Left to right:

1- View of the 3/4 inch spinner in the 2 1/2 inch PVC core.
2- Miniature 1/4 O.D. , 1/8 I.D. all ceramic bearing on top of a Radio Shack 12 volt 6 amp hour battery.
3- Position of the 12 volt Reed Switch on the Hi Voltage Spool Coil. Pins should point away from the magnet..
4- Top secured for runing with coil seated down partly inside the output core.
5- The six main componants: Power coil on core, 1/8 inch brass axel, ceramic bearing, battery and Reed Switch.

[OrionLightShip]

Ok thanks, I'll start reading the link you provided and try to get up to speed. I assume from the above post that we will spinning a neoball or something....what are the specifications for that?

[Allen Burgess]

I'm starting this thread to help OrionLightShip replicate the "Oscillating Reed Switch Pulse Motor". I'll be available to anyone else who cares to follow along.

Firstly, let me stress that high speed magnet spinning is potentially lethal if proper safety precautions are not followed. I advise spinning inside a PVC coupling; Much thicker material then the pipe itself. I used the 2 1/2 inch diameter coupling. This thick walled material is ample protection against shattering, and should be the first item on your shopping list.

I used one CD on the top, but gluing two or three together might make more sense. The CD's need a hole close enough to the diameter of the thread spool pulse coil to fit snugly, but loose enough to push and pull the coil up and down a few millimeters each way for positioning. The CD's need to be free to slide around over the top of the coupling a little also.The Reed switch always remains fixed in position on the coil with strong glue. Naturallly, the open bottem of the PVC coupling should be facing a strong table top. This creates a complete safety enclosure. A tiny window can be cut in the side of the PVC coupling to allow for "Laser Taching" the rotor speed. We could drill a hole there to plug the "Laser Tach Lens" directly into, and build a support to hold the meter up off to the side. No shatter framents to get through that way either!