Homopolar Generators (N-Machine) by Bruce de Palma

[Foggy-Notion]

Heavy current will kill a Neo, and N-machines make heavy current.
Maybe ok if the neo has a non-conductive coating to insulate it, not sure.

Yes, it will get warm, if magnet is not moving with the disc,
those are eddy currents.  Moving magnet with disc, allows you to
cement the magnet to the disc (closer to disc = more power) they say.

I know this, if magnet is not rotating with disc, it creates an eddy brake,
used on trains in europe, drop a magnet down a copper tube, it will slide slow.
this is drag, and means your spin drive has to do much more work.
if magnet rotates with disc, this is elliminated.  That's what De Palma said.
The guys in here saying otherwise, are nobody.  Their superiors at Langley VA
make fun of them around the water cooler.

[keithturtle]

CT, I think that if the disk generator is extracting energy from dark matter, the aether, vacuum ZPE, gravity, whatever ya wanna call it, I would think that quite possibly the coriolis effect may come into play.  I don't know.

[The longer I work with this stuff, the more comfortable I am with that phrase... I don't know]

Foggy, the reason the setup will take so long is that I am incorporating the capacity to spin the copper [composite] disk and mag field separately, together, in opposition, one fixed-- all possible embodiments must be addressed, with quantification on everything.

I can take it to about 5000 rpm with the equipment I have in the turtlelab, but hope to find a 2:1 gearbox to double that very soon.  Looking for a kevlar transmission tunnel blast shield as well, drag car variety.

Since I feel [only a notion] that orientation to earth does matter in this, I hope to spin it on a vertical axis as well, eventually, though the setup there is unclear at this point.

I should be jumping into this with both feet by later next week

Thanks for the input, all.

I cannot do this alone.  That's what the collective is all about.

Turtle, plowing ahead

[mikestocks2006]

An easy first start would be to have both disk and magnet spinning to be as close as possible to the original DePlama generator setup
A test to see if this is over unity can be fairly simple but maybe not that easy.
Have the pickup brushes in contact appropriate points, e.g. outer rim of conductive disk and shaft.

Spin the rotor to your max safe rpm, let’s say 5000rpm. Measure the constant power needed to maintain that rate of rotation.
Next do the same with closed circuit over a small value known resistor, so power can be dissipated over the resistor and measured.

Compare the power needed to maintain the 5000rpm again with the resistor in place and current circulating.
If it’s the same, then it is OU, the excess is the energy fed over to the resistor.
Measuring accuracy repeatability and detailed measurement error analysis needs to be accounted for, in order to have comparative statistical significant results.
I hope this helps
Good work
Mike

[keithturtle]

I've made a small amount of progress.  The pic is a variable speed setup for spinning a smaller disk.  18 VDC,  PWM control, the tool spins 2500 - 20,000 rpm, no load.  I reckon that's too fast for the wimpy 1/4" threaded rod shaft to contain that heavy brass impeller.  Still have to set the end bearing.  Ain't tried turning it yet.

Only using the junk piece of brass since it has the obligatory flat surface and it's already balanced.  Even has a nice pickup point on the center.  Might have to replace the rivets that hold it together with countersunk screws to get the magnet close enough.

Also, I'll probably do a jackshaft 3:1 reduction with some pullies I have.  I picked up some 1/2" cold roll stock today to machine a sturdier shaft.

It takes time.  Lots of time.

Turtle, still at it

[mikestocks2006]

Hi keithturtle,
Nice work so far, yes it takes a lot of time to do it right pay attention to details. How are you coming along?

To all readers interested in the DePalma designs tests and machines, these following videos maybe a great interest, especially from #9 and on.
http://www.youtube.com/watch?v=YGwAFHsVasA
Many thanks again to youtube user/member dollar12 for collecting the footage and uploading the clips.
One puzzling issue on the actual build they have shown, they are indicating vibration issues at 2000 rpm and since the early 90’s when the actual tests have been performed not much has surfaced in terms of solving that problem, and achieving the higher speeds demonstrating overunity with this particular set up.

Also, on the earlier video numbers there some very interesting tests, demonstrating, measuring/confirming antigravity effects.
It maybe a good idea to download/archive some or all of these clips…

Enjoy.
Thanks
Mike