New member: A Newman motor replicator.

[Michelinho]

Hi all,

A few pictures to show the new rotor and commutator. I adjusted the brushes today and the motor is running smooth. I even got the power supply to feed in ~460VDC and 0.034A giving now around 500 RPM. The torque is not bad, enough to turn the alternator to about 200 RPM but if I put a load, the motor slows to a crawl. The motor is definitely not strong enough.

Take care,

Michel

[Michelinho]

2 more pictures of the commutator. You see the point where the polarity reverses.

Michel

[hartiberlin]

Hi,
nice design,
but you need to make a bigger blank section,
where your commutator reverses, so that the no current flow blank segment
is bigger than the width of your comutator brushes.

This way a better spark will form and you will get a better kick to propell the magnet.

Also your magnet seems to be only one small magnet at the end of each rod ?
Maybe get some more magnets into it, so you will have more torque.

Try to concentrate on the Back current spike power, which will recharge
your power supply, cause this is the real overunity energy.
The mechanical output will be probably below 100 %.

So better use some lead acid batteries in series to power the motor
and see, how long it will run on the batteries.

[hartiberlin]

P.S: Try different
commutator angle current reverse switch positions versus the rotor position inside the coil.

This way you can optimize the mechanical output versus the electrical spike current
output or vice versa.

[carbonc_cc]

Also your magnet seems to be only one small magnet at the end of each rod ?
Maybe get some more magnets into it, so you will have more torque.

I agree.  Plus you may need to make your rotor wider and longer with more magnets.  In the case of the rotor, I believe bigger and stronger is better.  The closer you get your strong magnets to the coil the more flux lines your coil will have access too.  That should improve your torque.  The only downside would be arcing from the coil to the rotor, I believe...