Thane Heins Perepiteia.

[Kator01]

Hello Ron,

As usual I am properly horrified.  This is pie in the sky with the present build.But not being privy to
your plans all I can do is suggest that the present build is too tiny, too puny to run with this load
hung around its neck. The maximum build for this model is three?

I agree. The present rotor is not fitted to this load.This is the reason why I was suggesting the Magneto-Design. Here you have the advantage of the magnets hold in place by centrifugal forces in the inner side of a rotating brass-drum.You can scale it up with many coil-sets aligned  on one -stator-axis with a bigger ( longer) brass-drum where the magnets are placed radial  in successive levels.
In addition to this it has a lot of spinning mass. Carbon-Fibre would be counterproductive athough the    mechanical strength is superior.

I think you can visualize it.

Regards

Kator01

[Super God]

So how much current can you draw from the HC coils before the HV coils stop compensating?  This looks neat, so, if I were to gear this up so I could spin a rotor 2000 rpm with a hand crank, I could generate power without doing that much work?  Or at lest make it less work?  Am I totally wrong or sort of right or totally right?

[i_ron]

Hello Ron,

I agree. The present rotor is not fitted to this load.This is the reason why I was suggesting the Magneto-Design. Here you have the advantage of the magnets hold in place by centrifugal forces in the inner side of a rotating brass-drum.You can scale it up with many coil-sets aligned  on one -stator-axis with a bigger ( longer) brass-drum where the magnets are placed radial  in successive levels.
In addition to this it has a lot of spinning mass. Carbon-Fibre would be counterproductive athough the    mechanical strength is superior.

I think you can visualize it.

Regards

Kator01

Hallo Kator,

Thank you for your support. What you say makes sense. I had pondered what I could suggest to
Mr Tee in ways to scale this up but I have pretty well reached the maximum model size now in my
basement shop. However the drum approach would be a win win all around.

You suggest brass but there can be problems here also. I used what is commonly called "brass"
plate in a past experiment and there was tremendous drag from the magnets, somewhat like aluminum, as the plate was more like bronze. The proper stainless might work? Harder to work with of course. Anyway, thanks for the ideas...

Ron

[derricka]

Brass is typically mostly copper (being a copper zinc alloy)  As both Copper and Aluminum alloys tend to be excellent conductors, you will get a braking effect around moving magnets.
As for whats sold as stainless steel, some is magnetic, some not. You probably won't get reproducibility unless you specify an exact alloy type.
If you want a super tough (but still machineable) plastic for a rotor, there is always Tecamax. Just don't expect it to be cheap, or available at Home Depot.
http://www.sdplastics.com/ensinger/Tecamax_SRP.pdf

[woopy]

Ha Ha!

there is no problem,  put the round thing in a square box

OK OK  i will make the rotor with à scooter brake disk   but are the concentric bicoil and core square enough to be sent to Europe ??

looking forward to next the great results

cheers

Laurent