Complete information on working SM style device.

[flash]

Vince maybe go look for a dc stepper motor controller chip, this would be the easiest way. I don't know any chip numbers off the top of my head so maybe go ask the geeks at the local electronic shop

[ketone]

@ Vince


internal server error on your webpage, no pics

if you look on previous page, i do have a build that i am working on as per spherics design,

[duff]

@vince

Unable to view the above link.

How about posting some details of your tests, such as:
   Coil dimensions, spacing & angle
   Did you use a  DC offset
   What pulse frequencies you have tried
   Pulse voltage


Check out Earl's circuits: http://www.overunity.com/index.php/topic,2582.0.html


-Duff

[vince]

Sorry guys;

Try this link    http://picasaweb.google.com/vincemormile/2008_06_08?authkey=LtgXvSRHaH4

@Keytone

Sorry I had not looked at the last few pages.  Nice job!!  I just made a quick version to see if I could get any kind of output

@Duff

I used 4,12 volt solenoid coils (1" OD .5" ID 1.75" Long)
6 and 12 volt DC feed from a battery charger
approximately 3" OD 2.125 " ID pickup coil #14 gauge multistrand cppoer wire
3 magnetic security switches for the sequencing. ( probably not sensitive enough at higher speed so it is not firing the coils)
With the motor speed maximum at 1750 rpm it would have pulsed each coil that many times per minute and twice that when I used two magnets.

I think I'm going to have to come up with some other kind of switching for the coils as those magnet switches just can't turn on and off at those speeds. Maybe a brush commutator?

Regards
Vince

[duff]

Sorry guys;

Try this link    http://picasaweb.google.com/vincemormile/2008_06_08?authkey=LtgXvSRHaH4

Vince,

That is the same link that you gave us before.

Try logging out of your google account and then see if you can access it.

I think I'm going to have to come up with some other kind of switching for the coils as those magnet switches just can't turn on and off at those speeds. Maybe a brush commutator?

A commutator will introduce noise...


Thanks for the details...


-Duff