Muller Dynamo

[Magluvin]

Infringer

The washer is odd to me here.  We used them in the Whipmag stators to provide a bridge(attractive core material) under the diametric mags, between the mag and the ball bearings, as, if the washer were not there, the bearing would tighten up and not spin well. Even though the bearings were suppose to be stainless, it was an issue that the washer cured.

In this case, and this is me thinking blind to previous explanation, maybe it was used to weaken the field of the bias mag to the coil/core, by directing some of the field back toward the other pole?  Would the hole in the washer allow only so much to the ferrite core?

Woopy.  You have the magnetic film. Can you look to compare between just the surface of the magnet, and then with the washer?  I dont have washers at the moment to try, but Im wanting to.

The surface of the mag should show a light ring at the edge of the mags pole face outer edge.  But what of the washer added?  Also raise and lower the film from the surface to get kind of a 3d idea.  The lighter areas of the film will be more of a horizontal field to the surface of the film, and dark areas are more prerpendicular or vertical to the film surface.

Just ideas.  ;]

Mags

[infringer]

You bet that is a great start thanks null points...

OK so they are magnetic washers ...

Now for the ferrite mags on top of the NEO cores why are there two on some and a thicker neo with a single ferrite mag on another does this play a role in everything as well?



ChrisC looks like you are getting somewhere with your variation of the romerouk device I wish you good luck.

[nul-points]

[...]
I think a 10 ohm resistor might be to much a load on a individual coil set.
[...]
Probably a 39 or 43 ohm 1/2 watt carbon resistor would be a good place to start testing a one coil dual pair set.
[...]
I received my cores and dye for layout today, time to get to work tomorrow.
[...]
Ben K4ZEP

thanks Ben, useful info

do i remember correctly that you sign off your videos with "from the World's smallest lab"?    in which case, as they say: "small - but perfectly formed!" 

hope the build continues well

[plengo]

@Tcanuth
I posted a reply to you earlier but for some reason it never registered on the O.U server, maybe the photo. was too large. Anyway, the pic. shows 2 stator and a rotor plate made from acrylic. It costs me all of $25 for the 3 pieces and $30 extra for labor in machining the rotor magnet holes by Tab Plastics personnel. The nuts and bolts are from Home Depot and costs $5.00 The VCR motor drive is free from surplus (I'm only using the bearings to spin the rotor).
The Ne magnets (26) will cost about $50 and the other electronics parts will amount to no more than another $130. So, that's your answer.
Much as I would like to replicate this fascinating device, it's time I don't have much! Hope all those master builders will be successful soon.

cheers
chrisC

Hey chrisC,

that's a beautiful work. If costed you so little, would you share your sources? Just my 2 sheets of acrylic cost about $65. The magnets were very expensive, around $200. The bearings I agree that using a old VCR is excellent, which I've done in the past and it is free.

If you would be even willing to get me a perfect copy of yours for me I will pay you for that. Let me know please.

Fausto.

[DadHav]

Hello Guy's Listen if you think there is anything new about the coil / magnet combination of these generators you're probably wrong. People have been computing results of different combinations for years. Here is a calculator that proves the point.
http://www.powercroco.de/bewicklungsrechner.html
I have been using calculators like this one since I've been building motors. If you put in the 9 coil 8 pole combination you will see 72 for the cogging points, and 90 if you use 10 magnets. There's something that bothers me so I'd appreciate input. If the poles where even. 9 coils 9 magnets and the coils are in parallel right? So all coils would fire at one time. We all know coils, capacitors and batteries in parallel give or accept more current right? So this (The Romero Build) is not like a normal parallel coil set up. One coil fires at a time doesn't it. So on any given pulse, or can I say standard generated sine wave, from a magnet passing a coil comes from one individual coil at a time not the sum of all the coils. Does the frequency of generated pulses go from 9 to 72 or 90? when you change configurations? Even if it does don't you still have only one coil at a time delivering potential? It's really possible I have no idea what I'm talking about but I'd like to know before I think about it any further. I'll probably still be thinking when everyone is fighting off the Bad Guys because they have OU.
John H (DadHav)

Staffman

Yes, there are many many coil crossings in 1 full rotation of the rotor. I believe 72. Only if all coils were gen coils.
Sooo, 56 gen charges per rotor rotation for 7 gen coils. 8 rotor mags times 7 gen coil sets.


I had the same thing with the MMM magnet motor I had linked to earlier. I had 10 mags on the rotor and 9 stators, which gave me 90 times that a rotor mag passed a stator mag switch, all in succession. that was a lot of mechanical switching.
Did Romero show a scope shot of the output of the gen as a whole?  It should look like a fairly solid output of dc with a hair of ripple, even without the cap.

But as the motor coils(2) consumed from the cap, the trace would only show depletion's of 16 times during 1 rotation. So there should be 3.5 gen coil charges per each motor coil discharge.

This is where the alignments would become critical.  If 1 coils set is not close to identical as all others, we might loose some of those 3.5 charges per motor discharge.

Dunno, just thinkin.

So if there were an external motor to drive the rotor, then per rotation, there would be 72 gen cycles per rotation of the rotor and drive motor, if the drive motor were directly turning the rotor at the shaft. So for every 1/8 turn of an external motor, directly driving the rotor there would be 4.5 charges to the cap to refresh. Sounds good to me. ;]


Mags