Muller Dynamo

[k4zep]

hi again

yes, at 09:38m into the pre-self-running video you can clearly see mags on the lower deck in a low view thro' the side of the rig

hope this helps
np

[EDIT ** apologies for the duplicated answer, Ben - our posts clashed ** ]


http://docsfreelunch.blogspot.com

Hi NP,

No problem, happened to me too.  I seemed to have missed where Romoro gave the inductance.  Has he ever said the resistance?  I'm assuming about 6 ohms per coil based on current in motor side of the coils X 2 in series.

Ben K4ZEP

[bourne]

@all. I previously asked Romero if he had tried stationary magnets on the coils down below [lower deck] He is likely under too much pressure to answer me . HE MUST HAVE TRIED THIS , AS OTHERWISE , THE LOWER COILS COULD BE DOING LITTLE EXCEPT WASTE ENERGY . Has he discussed this with anyone else please ?

@neptune

page 5 reply66 from RomeroUK, 2nd picture shows magnets and iron washers on the 'lower deck' coils.


@collapsingfield

Nice simulations, it would be good to see that in 3D. A single rotor magnet sliding through the torus of fields created by the upper and lower magnet/core combinations.

I am finding the magnetic 'tuning' of this easier and easier to understand. I can't wait to get something together to tinker with.

[nul-points]

Hi NP,

No problem, happened to me too.  I seemed to have missed where Romoro gave the inductance.  Has he ever said the resistance?  I'm assuming about 6 ohms per coil based on current in motor side of the coils X 2 in series.

Ben K4ZEP

yeah, things are moving so fast round here you're afraid to blink 

i haven't seen Romero quote a resistance yet but this is his comment bout the inductance:

"I had measured the inductance and it is 1.203mH plus and minus, not all coils are exact value but with the magnets on the rotor being close to them that might not be exact."

cheers

np


http://docsfreelunch.blogspot.com

[Thaelin]

Hi Romero:
   Well, I will be hounding on your back door shortly. I was out today and found 2 16"X5/8" plywood rounds and a 12"X3/4 press board round. This saved me all the time to make them. I have only now to drill the coil mount holes and the magnet holes. For mounting I used two 6" alu cast pulleys and a 1/2" stainless shaft into two precision bearings. I will use another pulley outside to mount the hall magnets to for the motor part. Coils next on 3/4" ferrite slugs using #30 wire that I have.
   Just couldn't resist this as I had most all the parts already. Transistors will be IRFZ40 power NMOS fets since I have a bunch. Switch mode regulator soon as I can run one down.

All in all, not much left to get.

thay

Edit:  I see that wally mart has the regulators so that done too.. thanks guys

I hope someone here is going to replicate it soon and have all this questions addressed to him.

To all:
Don't ask me to do more videos, and measure every inch of it, this is taking all my time, instead of working and doing something productive.
I know skycollection - jorge sent me an email earlier but was deleted.
If you see this message please send it again, I would answer to you.

Best regards,
Romero

[toranarod]

I cannot find reference to the gape between the magnets and the coils?