STEORN DEMO LIVE & STREAM in Dublin, December 15th, 10 AM

[k4zep]

Hi all

coincidence!

Yesterday I bought the Arduino manual thinking about how to solve the switch timing .

assuming that you need 5° accuracy timing with a 2500RPM you have 0.33 millisecond to run the software instructions it is enough??

A pratical solution is to use magnet pais like in the original video, in this case with N and S magnet you can reduce the interaction area improving the timing, increase the torque .... but reducing the effect and speed.

Instead to use a standard ferrite toroid ... wy not use a magnet toroid facing with opposit to the rotating magnet, like to Ossie experiment.

Ben , Ossie , Stefan all
Thanks for the information you have given me so far

Stefan please stop the music

Yes, just dreaming, practically, will need much faster than Arudino as actual value pulse/pulses width (if individual coils controlled), needed to spin up is rather large but then actual value to maintain sync of fields (positive feedback of speed) when tracking pulses is very short, and very fast tracking at 2-10K rpm gets to be a bitch.......The application of micro will be mandatory as size and power increases and control of loop to keep power input down to minimum for speed and efficiency with little resistive heating .......know the above is rather cryptic but if you understand, don't have to elaborate, if not, just build the motors.   Information and data coming in so fast, hard to digest it all and sleep at the same time.........Cowabunga, what a fantastic year......

Every one has contributed over time and all the ideas add up.  Bedini, Adams, Flyn, Steorm, JLN, Ossie and all the other great experimenters on this list too numerous to mention and all the results of the Internet with the rapid distribution of information and on and on and on.  Whomever ever though that two magnetic fields in a active environment could mechanically be brought into resonance with resultant power output..... Wow.......Again, just dreaming, me bad.

Respectfully
Ben

[Cap-Z-ro]

" I made a lot more electricity with steel than I ever made with copper. "

~ Ed Leedskalnin

[callanan]

In the Steorn replication from JL Naudin,
http://jnaudin.free.fr/steorn/indexen.htm
we see the values of voltage and current used to power the coils:
8V, 18A and a duty cycle > 25% (http://jnaudin.free.fr/steorn/images/steorn4.jpg)
This leads to 36W/coil!
We now understand why Steorn is using a strong 10A/h battery instead of a capacitor...  It is a very unefficient motor.

Hi exnihiloest,

I was just wondering, have you read all of the posts in this thread?

Regards,

Ossie

[lumen]

This thin steel bushing core, with 1500 turns, drops 6, 3/4" neo's stacked like it was nothing.

Interesting test! should have high permeability and low saturation. It may be better to have a core of rolled 1010 shim steel or fine 1010 steel wire to eliminate eddy currents.

I believe the core material will be an important factor in improving efficiency but maybe not something we are particularly looking at currently.

[futuristic]

In the Steorn replication from JL Naudin,
http://jnaudin.free.fr/steorn/indexen.htm
we see the values of voltage and current used to power the coils:
8V, 18A and a duty cycle > 25% (http://jnaudin.free.fr/steorn/images/steorn4.jpg)
This leads to 36W/coil!
We now understand why Steorn is using a strong 10A/h battery instead of a capacitor...  It is a very unefficient motor.

And callanan gets 2000 RPM on quite heavy rotor with only 0.12W: http://www.youtube.com/user/m1a9r9s9#p/u/0/8VhKqqHxEmE