New positive proof of a working Newman fan motor charging a battery

[mrd10]

I hear ya Stefan, thanks mate.

Ok I added more coil to the unit, criss cross at the centre, now it looks more like chucks

I'm drawing very little amps, I can't even see the needle moving, youll see this in vid I just made. sorry about my kid in the background noise...lol
-coil measures 85 ohms
-.25mm diam
-commutator still brass, i'll let it run and check back in few hours, and write notes.
then make commutator changes, possibly try and use the same shaft.

Dom

[hartiberlin]

Hi Dom,
many thanks for the video and the picture.
Now you are getting to it.

Now it only depends on the commutator.
What contact materials do you currently use ?
Try to make the commutator more slippy, so it sparks
more and gets less contact.
Then try the trick with the incandescent bulb to see the RF power.

[mrd10]

Hi Stefan and All,

I can't see my Amp meter needle moving at all, It's like on 0.

I did another video tonight, because I changed the commutator as per chucks done it, i.e
using the shaft itself. I put small sticky tape on it, with small gap, the thicker yellow cable is the other side of the connection, which is connected to the battery, this is just touching the metal shaft holder.

its 6pm now reading 12.83  .84volts, i'll check in few hours what voltage reading is.

So it would seem the closer to 100ohms you can get the coil at the better.
I will need to get a micro amp meter to see how much it is drawing.
try and keep wiring as much to the centre as possible. I did criss cross fashion and this might have some bearing on current draw, cancelling the magnetic flux perhaps.

so specs again:-

-85ohms @ .25mm diam wire
-wired criss cross or figure 8 around the centre.
-using steel shaft as commutator.

Dom

[CLaNZeR]

Excellent Dom

Thought I was watching a Spy Movie to start with due to the torch and black out hehe !

Back to work today, so will be away from home will the weekend, but will get back to playing as soon as.

For now I will follow your project with interest.

Good Stuff

Cheers

Sean.

[CLaNZeR]

Hi Dom

I do not know if you are in the UK but Rapid have a good range of Analogue Ammeters

http://www.rapidonline.com/productinfo.aspx?tier1=Tools%2c+Fasteners+%26+Production+Equipment&tier2=Test+Equipment&tier3=Educational+Meters&tier4=Analogue+ammeters&moduleno=71832

Very good prices as well.

Regards

Sean.