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[Omnibus]

OK, got the bearings. The storm didn't help but that place in Boston happened to have the exact recommended bearings. Once in a while one gets lucky. Off to the remaining parts.

[unzapped]

Hello all here is my long awaited quote for parts as spec'd in the drawings for the whipmag replication...

>>Hi Jason.

>>We are quoting your parts, 10 assys for $83.75 each.

>>Thank you
>>Terri @ C&D

They are a little more expensive that I originally thought...

In the interest of getting something out of this....

If I get 9 orders... I can get them to you for $94 each plus shipping...
this will get me one for myself and One for each of the 9 lucky folks that want to pay $94 US for them.

In the unlikely event 9 of you are still interested, I have paypal, live in NY, and will take interest as it comes via PM so as to not clutter this thread with this...
I truly thought I could get these done cheaper, it is what it is...

I do know that the quality of the parts from this machine shop is superior, although not sure for a hundred bucks, you will still need to have bearings, magnets, and shafts.

Personally I will probably wait until, clanzer replicates, then build a giant one based on that.
Thanks
UZ

[Nicolas Roger]

The LaFonte Group is expecting the magnets to arrive late today.  We will test tonight.

[mikestocks2006]

@ Jason,

Doug Furr asked me to see if I could get some clarification on what the damper things are for and how they mount.

My understanding is that they are to keep the thing from accellerating to destruction.

Any light you could shed on this would be appreciated.

Doug Furr had to go out of state today for an urgent meeting, so he'll probably be a day or two more before he's done with his replication.  I stopped in to see his progress last night.  He was machining the rotor on his CNC machine.  The base is done.  He showed me his bag of hundreds of magnets.

- - -

@ CLaNZer,

Would you mind providing me with your email address?  I understand you wish to keep it confidential, and I will honor that request.  Send to sterlingda {at} pureenergysystems.com.

Thanks

Sterling

Hi Alan,
quoted notes:
"...the unit runs faster without the magnokinetic Judson dampers. Typical stator speeds are 8000 rpm, rotor 2000. But the unit is quite unstable at those speeds, maybe due to the cheap bearings I used for the stators. But that's unknown, it could be that the bearing chatter actually contributes to the effect by some chaotic dynamical interaction. Don't ask me with what!
Anyway the unit will run up to high speed but only stays for a short time before the stator "drops out" and the rotor freewheels to a stop. I figured that a little eddy-current damping at high speeds (and proportionally less at low speeds, so the damping at startup speeds is essentially zero.) would do the trick. There was an adjustment process that took a couple hours to find the sweet spot and the orientation, and it seemed so close to an already drilled and tapped set of holes in the base, that I just used the existing holes, even though the positioning wasn't totally optimum..."

I hope this helps
Thanks

[mikestocks2006]

It may not matter, but I believe that with Al's setup, the stator magnets come to the "bottom" of the rotor magnets.  But I think this will make a difference for the latching effect, but if yours are adjustable, and it does not work, that is the first thing I would do, is drop your stators.

Hi Bruce

Think I may have to trawl through the 1000's of threads over at Steorn Forums to find this out.
Looking at the various pictures they all seem to show the Magnets level with the top of the rotor magnets, apart from this earlier rig that was photographed at a better angle to tell.

Looks like they are half way down the rotor magnets maybe?

Cheers

Sean.

Hi Sean,
This may clarify the position of the stator magnets compared to the rotor:

quote:
"..., the relative height of the stator and rotor magnets seems important. I don't know if it's because of my particular geometry or whether it is critical to the effect itself, but the magnets shouldn't be in the same plane--that is, I am getting best results when the rotor magnets are rotating in a plane that is just slightly higher than the tops of the stator magnets, rather than down and centered vertically...."

I hope this helps
Thanks

[geodan]

Hello all here is my long awaited quote for parts as spec'd in the drawings for the whipmag replication...

>>Hi Jason.

>>We are quoting your parts, 10 assys for $83.75 each.

>>Thank you
>>Terri @ C&D

They are a little more expensive that I originally thought...

In the interest of getting something out of this....

If I get 9 orders... I can get them to you for $94 each plus shipping...
this will get me one for myself and One for each of the 9 lucky folks that want to pay $94 US for them.

In the unlikely event 9 of you are still interested, I have paypal, live in NY, and will take interest as it comes via PM so as to not clutter this thread with this...
I truly thought I could get these done cheaper, it is what it is...

I do know that the quality of the parts from this machine shop is superior, although not sure for a hundred bucks, you will still need to have bearings, magnets, and shafts.

Personally I will probably wait until, clanzer replicates, then build a giant one based on that.
Thanks
UZ

Sounds Great UZ

Please put me down for one of those babies!

I'm still waiting for a quote from SPM but I don't think that they'll be able to beat that price... (Hey Ken... are you in??)

Just want to make sure that materials are as recommended by Al  (rotor -  HDPE etc...)

Thanks

Geodan

Please send me

[geodan]

...sorry, fat fingered that...

Please send me contact information for payment / shipping arrangements.

Thanks

Geodan

[unzapped]

ok then, looks like I have two orders so far...

I know I could go back to find this info... the best material for the job was listing in the tech specs...
BUT, do we want a clear substrateinstead?

Thanks
UZ

[vipond50]

Hi Just a quick post to state that i can get 500 rpm plus i.e. 511, 513, 524 rpm with a hand or finger start on the rotor with three 1/4" (6.35 diameter) cylinder mags/ slot. The rotor diameter is as per spec.
Bill

[geodan]

ok then, looks like I have two orders so far...

I know I could go back to find this info... the best material for the job was listing in the tech specs...
BUT, do we want a clear substrateinstead?

Thanks
UZ

"...But I do not recommend using polycarbonate (Lexan )for any part of the machine--it's in the wrong place on the triboelectric series, if one of my theories is correct.

Nor do I recommend acrylic plastic (Lucite, Plexiglas, Perspex?) for the rotor, if the base is acrylic. Different materials should probably be used. I used HDPE which at the opposite end of the plastic tribo series from acrylic.

----------------------------------------
The Delrin (or Acetal in the civilized world) is what I used for the early rotors and all the stator bearing/magnet holders, and the 3.5 mm to 1/2 in shaft adapter. It is by far the nicest plastic to machine. ..."

UZ - we should also consider altering the design so that we can move the stators / dampers around some... kind of like Sean did on his base... I want to be able to replicate but I also want to be able to tweak...

@Jason - What do you think??

Thanks

Geodanz