Window Motor Replication

[theremart]

RE: finished

Finished rotor

Now remember...

When you run this please stand by the off switch....

Remember Telsa's earthquake machine, this maybe similar

ROFL

[ren]

lol mart.

Theres no free floating piston here. But yes, I will be standing some distance from it when it is first fired. Perhaps I can bluetooth the pots or something, control it wirelessly from across the room...no, make that paddock.

In all seriousness, Old Mate has done a pretty good job on this rotor. It looks well balanced and sturdy.

Regards

[ashtweth]

Wholly crap Ren nice work M8!!

[ren]

I can take no credit for it, except for the conceptual drawings

All praise is directed to the machinist for his time and effort/skill.

[tjnlsn255]

All North facing magnets?

Can I use my all North facing SSG rotor on a window motor coil configuration?

I have a six pole all north SSG rotor that I would like to use on a window motor coil configuration, what is the disadvantage of this over N, S, N, S, N, S?

Thank you for any and all help

Tj

[ren]

You can use all norths, you may as well omit half the circuit as it is only concerned with souths. You could still use cores if your magnets arent too strong, and if it was a traditional SG to begin with this is probably the case.

Build the half circuit and see how you go with one of your coils.

[tjnlsn255]

Thanks Ren,

Is there a fast link to the 1/2 circuit in the forum that you can give me?

Have a most excellent day....

Tj

[ren]

Im not sure TJ.

There is one here.

http://www.fight-4-truth.com/N-Pole%20motor%2084.jpg

You can use 2n3055/mj2955 as the complimentary pair, or mjl21193/4. MpsA06 as the signal/darlington works great.

[tjnlsn255]

Thanks Ren,

I think I also found one at John Bedini's web site....

MOTOR DIAGRAMS AND LAB NOTES

Thanks so much for all the help.....

Tj

[tjnlsn255]

1/2 Circuit Description?

Does anyone have a description of how the 1/2 circuit works compared to the SSG circuit?

What is the advantage of the NPN/PNP transistor combination on the ends of the drive coil?

What improvements does this give over the SSG circuit?

Thanks for any and all help.....

Tj

[ren]

Thanks Ren,

I think I also found one at John Bedini's web site....

MOTOR DIAGRAMS AND LAB NOTES

Thanks so much for all the help.....

Tj

There you go, thats a great page. There is a half circuit drawn really neat there. You should use the basic resistor values to get it going, then use pots to tune it. Its a different animal to the SG, it will take some experimenting to get a feel for it.

[tjnlsn255]

Thanks Ren,

But what does the NPN/PNP 1/2 circuit do more of or differently than the SSG circuit?

What is the advantage of this circuit over SSG?

Thank you for any and all help....

Tj

[ren]

I see it as having the drive coil disconnected entirely from the battery inbetween motor pulses, making it a good candidate for recovery to source. It also draws the least amount of input current at its top speed, but if you want it to produce High voltage I think you may need to alter the timing somewhat.

There are others as well, but those are the main ones I found.

[tjnlsn255]

Thanks Ren,

I see it only has one battery, so when the CEMF switch is closed this circuit charges its own primary battery? So this is a self running curcuit?

Is the CEMF switch a relay or reed switch or is it just a toggle switch that I can choose to turn it on or not?

What is the purpose of the Fast Start Switch?

Can a capacitor be put in parallel with the battery?

Thanks so much for all the help!

Tj

[ren]

Tj, I cant tell you either way about self running. Yes the CEMF can be stored in a cap and dumped back into the primary. It would probably be a good idea to have a large uF cap over the primaries terminals for this. You might even find that closing S1 at the right time without a cap can give results too. You are going to have to experiment with the CEMF switch. It would probably be best to use a commutator there.

Fast start will make sense when you build it. Once it is up to speed you can tweak that resistance up to 10k and the thing will still run, but its harder to start at a high resistance.