Muller Dynamo

[hoptoad]

Ron:

That is beautiful!!  Very well constructed, I wish you the best.

Bill

Ditto

Cheers

[Bruce_TPU]

Just as a Quick Note, it could easily be both attraction AND repulsion.  I thought that was obvious?  If the Bias magnet would "Cause" the repulsion, and the coil is used to counteract that into attraction?

Or is the lack of magnets seen on the pictures fully accepted?
(I haven't seen the bottom of the "Drive" coils, so for me this is undecided.)

Only seemed to be common sense to me.  Or am I just a little slow...

This agrees with Romero's statement of attraction, but could add in a little more torque.  This also relates to the "High Flux Reversal" situation as well.  Or am I to assume that the operation "HOWs" are still undecided?

(Just playing with "Micro" unit until larger magnets arrive.)

I asked Romero specifically about the magnets and he said the device works better in attraction mode, but if you look at the drawing, including the one in Stefan's pdf, the stator magnets are in repulsion to the rotor magnets, and it shows the coil in attraction.  The Coil MUST be in attraction for best results! 

Cheers,

Bruce

[i_ron]

That is beautiful!!  Very well constructed, I wish you the best.

Bill

---------------------------
Ditto

Cheers

Thanks, guys!

Ron

[Dave45]

rotor material


http://www.interstateplastics.com/Natural-Canvas-Phenolic-Sht-Sheet-PHENC.php?sku=PHENC&vid=201105152108-7p&thickness=0.500&dim2=12&dim3=24&qty=1

http://phenolic-sheets-rods-tubes.com/C-CE-sheets.htm

[Bruce_TPU]

I must reply to you, Bruce.

But First, the replications I have seen here, names not needed, are so good that words cannot express my appreciation.  Fantastic work. 

Bruce, I have a question, that "May" be important, as it directly relates to this.  Your pic shows the stator coils, but this is in reference to the "Generation" coils, not the "Drive" coils.  IF there were a magnet on the drive coils, then what I stated applies very well.  I do not see one in the video's, which is why I noted that I could not see the bottom.  Without or with magnets, attraction will always be better, due to flux concentration, but I am sure others with motor design experience could explain that much better.  Of course the "Gen" coils will be in repulsion, as far as the magnets go.   My Question, "Do you think there are magnets on the "Drive" coils?"   If yes, then both are in use, and if no then just attraction.  I am assuming no for now, and ignoring the old method of reversing the coil current flow from the collapse, as that would be too much at this stage.  (The circuitry wasn't in video, either, and this is all still replication, right?)

So, what this all comes down to is, if Romero stated it works better in attraction, this implies he tried repulsion.  This would be possible just by flipping the magnets on the stator drive coils to opposite way for repulsion, or the same way as the "Gen" coils for attraction mode.  I doubt he would have wanted to reverse the magnets polarity for the drive coils to be in repulsion, as the attraction caused during coil off might be a problem.  (Might help to start, too.  I have not gotten that far, but the washers could allow for more than tuning, in this very low probability case.)

I think there are NO magnets on the drive coils, and if there are, then they are in repulsion mode with the coil(s) in attraction mode.  Either way the motor uses attraction force during the coil drive time.  Does this sound reasonable?

(Note: this operation can be accomplished without a rotor, but that is another story.  Working on that until mags come in...)

Hi Loner,

To answer your question, no, I don't think he used magnets on the drive coils at all.  And the picture I posted came from much earlier in this thread and was posted by Romero, and later placed into Stefans .pdf.  It will work either way, but he stated attraction and I asked him very specifially, and he stated that it worked "better" in attraction.  At first I had thought he was speaking of the magnets, but he was not, for I mentioned to him that his picture showed the magnets in repulsion.  The Coil must be in attraction to the rotor magnet.  I hope that helps!


Cheers,

Bruce