Working SMOT ramp from Tom Ferko ?

[Jdo300]

Hi Tom,

I just now had a chance to check this thread out and it is looking good so far! If and/or when you get this thing working, I will be ready to make a replication (tons of ceramics too  ).

How high are the stator rails with respect to the magnets on the rotor?

God Bless,
Jason O

[magnetman12003]

Hi Tom,

I just now had a chance to check this thread out and it is looking good so far! If and/or when you get this thing working, I will be ready to make a replication (tons of ceramics too  ).

How high are the stator rails with respect to the magnets on the rotor?

God Bless,


Jason

Hi Jason ,

Take a really small magnet and place it on the side of the aluminum channel holding the rail magnets.  I turned my small magnet loose and let it drop to the side of one of my aluminum rails with the rail magnets inside.

This very small magnet will stick to a certain spot every time.  Note the height.

Thats the sweet spot for the rail.

Now take this same small magnet and drop it on the outside edge of the large donut magnet.  Being loose and it will stick to a certain location every time.

I found on my 4.5 inch diameter donut ring magnet that that location was 1/2 inch inwards from the outer face of the magnet edge.


Now when you line up the rails with the large donut magnet faces you will go for a height that has both sweet spots directly facing each other.    Tom

[magnetman12003]

Hi,

If anyone is interested in trying this circular stagger track SMOT motor attempt (Note: Presently its an attempt) here is sources where you can buy most parts:

First please review the linear stagger track movie clip many times to see how all this ties together before you start spending your money.  The linear track worked!!!!  No sticky or stop spots.   Hopefully this circular track attempt does as well.

Rigid large diameter plastic straps to secure the large ring donut magnets to the turntable---Mcmaster-Carr catalog page 1375 at the bottom.

Anodized Aluminum channel edge trim ---(Figure 1- Style 1) Mcmaster-Carr catalog page 3539.   Different sizes are available.

Large powerfull donut ceramic ring magnets---www.surpluscenter.com   Online catalog page 163.  Click "SURPLUS CENTER" on Google.

Listed here is a choice of three sizes of large inexpensive ceramic ring magnets. 3 1/8, 4 1/2, or 5 1/4 diameters.           I am using the 4 1/2 diameter.

Look into "Ebay Auction" to find inexpensive ceramic disk "Craft" magnets. Stack them together inside the aluminum channels to makeup the four magnetic rails.  Also dont forget wooden or plastic seperator disks placed every one inch while stacking.  Those are 1/4 inch thick.

If you have a of of cash buy many Neodymium one inch diameter- one inch long magnets found on Ebay and seperate each with the 1/4 inch thick plastic/wood disks.  Use this setup for your four magnetic rails.  The powerfull ceramic ring turntable donut magnets stay as they are.

That would be a very powerfull combination and the motor might run away should it be made functional- Beware!!

Have fun,

Tom

[magnetman12003]

Hi All,

I constructed the turntable with 3 huge ring magnet rotating arund a centerpoint.

I placed the  4 magnet rails illustrated previously around the turnable magnets and nothing happens.

I then took those rails away and "fast" spin rotated the heavy 21 pounds of turntable donut magnets using a single small 1.75 inch long, .75 inch diameter neodymium rod magnet acting as a trip device.

I am now constructing a simple mechanical trip mechanism that will do this work.  Very little effort is needed to drive the huge force of the spinning turntable permanent magnets.

Its simply a small force controlling a larger force.   Folks working in electronics see this all the time.


I will post videos of a working motor as soon as I finish it.     

Tom

[mark australia]

Well done I am following your progress with great interest
mark