Earth Pole DC Motor (No Magnet Stator) - My design

[Brandon Spiteri]

Hi,
this is an Earth Pole DC motor which I designed and built.

It is very interesting and rewarding to to give it a try as it demonstrates profound concepts
with few components promoting further understanding of the concepts.

The polarity on the armature is shifted accordingly (+/-12V) instead of simply switching ON and Off.

The Unit is first aligned towards the North Pole which is the optimal position for fastest rotation, then it is rotated by 90 degrees to a bad position where the Motor slows down to a dead stop to indicate the North direction.

Blueprint: **broken link removed**

Schematic: **broken link removed**

 

[ronv]

Cool..

 

[ronsimpson]

This motor uses the earth's magnetic field to run.
If too many of these are allowed to run the earth will run out of magnetic energy. The earth will stop turning.

lol

 

[plankwood]

This is one the ways that the supposed over unity crowds get their mystery devices to appear to work.

 

[Brandon Spiteri]

This motor uses the earth's magnetic field to run.
If too many of these are allowed to run the earth will run out of magnetic energy. The earth will stop turning.

lol

hi, i think you are mixing gravitational field with magnetic field here ..

 

[rumpfy]

For such a model it is very nicely made; Well done.

 

[cowboybob]

Welcome to ETO, Brandon Spiteri!

Impressive. Both in concept and execution. I bet that was fun to make.

Thanks for sharing that with us.

 

[ronv]

Ron, were you wondering why your compass was pointing towards the mountains instead of Wyoming?

 

[ronsimpson]

I was wondering why my compass was going around and around.

I am a little surprised that you can generate enough torque.

 

[dr pepper]

Cool, that would be good for teaching kids.
How many uses for a 555.

 

[Brandon Spiteri]

I was wondering why my compass was going around and around.

I am a little surprised that you can generate enough torque.

Are you still sceptic about the motor?

 

[schmitt trigger]

Brandon: Two thumbs up for a MARVELOUS AND INGENIOUS circuit!

This is the type of projects that would excite fertile young minds to follow a career in science or engineering.

And...when I thought I had seen everything that could be done with a 555, this is refreshing.

 

[ronsimpson]

Are you still sceptic about the motor?

Not skeptical but.......
The amount of torque is about what you can get from a compass. That shows what a good bearing you made.
I think you have a compass, not with a fixed magnet, with a electrical magnet that you switch polarity on.
I think it has some problems starting.

Good work, thank you for showing us! I wish I had one.

 

[Nigel Goodwin]

Not skeptical but.......
The amount of torque is about what you can get from a compass. That shows what a good bearing you made.
I think you have a compass, not with a fixed magnet, with a electrical magnet that you switch polarity on.
I think it has some problems starting.

Good work, thank you for showing us! I wish I had one.

I agree - basically it's a nice toy, but nothing more - but it's impressive that he managed to make it rotate with such a weak stator 'magnet'.

However, for those who's repaired CRT colour TV's over the years the earth's magnetic field is obvious, as you see when you rotate a CRT colour set whilst it's switched on, as the purity is changed by the earth's magnetic field.

I wonder if he's tried using it as a generator?.

 

[schmitt trigger]

An earth field generator... now that would be awesome!

But the actual amount of power would be indeed, very tiny, with such a weak field.

 

[ronsimpson]

I wonder if he's tried using it as a generator?.

Yes...should work.

rotate a CRT colour set whilst it's switched on, as the purity is changed by the earth's magnetic field

Also... on a monitor the picture will move and rotate a small amount. This is not seen on a TV because of over scan. On a monitor the edge of the picture might be 2mm off the edge of the basal so the picture movement is a real problem.

 

[Nigel Goodwin]

The other problem of course, it that it's VERY unimpressive

Fair enough, WE'RE all suitably impressed, but the vast majority of the public wouldn't be impressed at all - and wouldn't even know there's no stator magnet.

 

[ronsimpson]

If you like little motors: Radiometer
It is not as cleaver as Brandon's motor.

 

[Nigel Goodwin]

If you like little motors: Radiometer
It is not as cleaver as Brandon's motor.

No, but it's a great deal older

We had them in Physics at school - and they were very old then, Victorian perhaps?.

Just googled - 1873

 

[Brandon Spiteri]

If you like little motors: Radiometer
It is not as cleaver as Brandon's motor.

Nice invention. Had seen them inside decoration balls hanging from ceilings but had no idea what they were called. Just bought one now off ebay.

thanks a lot