Newman machine replica

[jorgerojo]

Thanks a lot "THE ONE" for your answer I?ll use a 4" PVC piece of pipe and a Magnet that could be near of the coil, I?ll be in toch with pictures.
Thanks a lot!!!!!
Jorge

[jorgerojo]

foes the shaft tube have to be touching the magnets?
Thanks again THE ONE!
Jorge

[TheOne]

they can its not really an issue, like you see in the begining of this thread i used wood stick to put my magnet because both magnet have different size so i needed to balance a little bit and find a way to fix it more easyly on the shaft

[hartiberlin]

I want to attempt replicating this project, but I'm having trouble understanding this schematic.


I thought there was a hall ic in there somewhere... or something that oscillates???
Where is the contact point that rubs on the axle???
Is this really everything I need to replicate???
Meaning: 12v battery, some 28awg, 10ohm shunt resistor, and a couple neon bulbs?

If not please post a complete diagram listing all components needed and how they are wired.

~Dingus Mungus

Hi Dingus,
if you go with the reciprocating setup, where a magnet just slides in and out of the coil,
you have to make this circuit like a door ringer bell.
So connect one contact point to the bottom of the magnet and the other
beneath it.
So if the magnet falls into the coil it makes contact and the coil
repells the magnet out of the coil and the contact is broken, so the magnet
again falls back down making contact again and is repelled again out of the coil.

If you go with the rotating setup, you just need to make
contact once per revolution of the magnet at the right angle.
So you stick the contact to the axis via a commutator.
Pretty simple. No higher mathematics needed !  

Regards, Stefan.

P.S: Replace the 10 ohm shunt with a incandescent bulb.
The shunt was only there for the scope measurement for
to see the back current spike on the scope.

[CLaNZeR]

I should video it at night, the sparks are wild and jump out like lightning. 

I need to secure the bearings tonight and get rid of the duct take, because it torqued the bearings really hard and it has hit the coil a couple times when the magnets gave a little.

Looking good Mike.

Cannot wait this end to get home this weekend and have a play on knocking up one of these!

Regards compressing the video, if you are running Windows XP then just fire up Windows Movie Maker that comes with it. I allows you to mute your Videos and when you save the Movie out it saves it to .WMF which compresses it hell of alot and easier to upload etc etc.

Regards Sean.