The Underground Lab

[Sephiroth]

The coils are configured this way to get the right impedance.

If I hooked all the coils in parallel then their resonant frequency would be too high and it would never reach 1 pulse per magnet pass and mechanical efficiency will be very low.

I was originally using a much finer wire and had the coils wired up as pairs (the coils opposite each other were wired in series, so 5 pairs in parallel) though I wasn't happy with the high resistance.

I haven't tried wiring ALL the coils in series yet, but I think that may be better when the generator is attached...

I should mention that this is experimental... it is not usually recommended to have separate coils in series and I believe it comes with a cost. If the coils are wired in series then their inductances need to be identical for the best charge rate. Unfortunately, mine aren't and I can see on the scope across the battery terminals how this has effected the spike. I really need to get an LC meter to get these coils matched...

Though this project is just to study the mechanical potential of the SSG I have another project which is designed for maximum charging efficiency.

All the coils on one side are bifilars (one power, one trigger) and all the coils on the other side are single-filar. All the coils on either side are wired in series in sets of five, and then both sides are wired in parallel. Tried using separate transistors for either side but for some reason the results were terrible so I wired both sides to the same transistor... I can't believe it works so well with just one transistor.

the shaft is 8mm diameter stainless steel. Unfortunately, it's magnetic stainless steel So that needs to be changed as well.

Oh, and the reason I have gone for such small coils is so they are fully immersed in the rotor magnet's magnetic field. Some may notice that they have very similar dimension to those recommended by Robert Adams

[cody]

Very nice Seph!

Beautiful motor! I was having trouble with your page, the window to read the text was shrunk and i couldnt read anything. Im assuming its still under construction I wanted to tell you that i had a motor very similar to that a while ago, and i was able to improve efficiency of it very easily by simply connecting the backs of the coils with a common flux path(silicon steel or etc) When connected it drew less amps and the rotor speed increased, might be worth trying. Anyways, nice work, looking forward to see it finished.

[Sephiroth]

Very nice Seph!

Beautiful motor! I was having trouble with your page, the window to read the text was shrunk and i couldnt read anything. Im assuming its still under construction I wanted to tell you that i had a motor very similar to that a while ago, and i was able to improve efficiency of it very easily by simply connecting the backs of the coils with a common flux path(silicon steel or etc) When connected it drew less amps and the rotor speed increased, might be worth trying. Anyways, nice work, looking forward to see it finished.

Thanks Cody!

Sorry to hear your having trouble with the site but thanks for reporting it! What browser are you using? I've tested it with the most recent version of IE, Firefox and Opera, but not sure how it works on safari or older browsers...

If anyone else is having issues please let me know!

Cheers!

[tjnlsn255]

Thanks Seph for your fast and detailed answers to my questions....

I was able to access your web site ... awsome job!

I wish you all the very best on your adventure......:-)

Tj

[cody]

I tried it with explorer and it worked fine, i usually use google chrome and that is what the problem was.
thanks

[ren]

Thats awesome SEP! You might have stated this else where, but what sort of magnets are you using?

Two thumbs up.

[Sephiroth]

Thats awesome SEP! You might have stated this else where, but what sort of magnets are you using?

Two thumbs up.

I think they are grade 8 ceramic disc magnets 5mm deep and 19mm diameter double stacked. Might be grade 5... it isn't labelled on the packaging, but they feel as strong as my other magnets and I know they are all grade 8...

@cody
Thanks I didn't check chrome... I'll get onto that!

[Sephiroth]

Fastest SSG on the Planet?

Uploading a new video of the MG-1. Haven't finished the generator section yet as I'm still experimenting with the motor section.

It now draws almost exactly 1 amp.

Top Speed : approx 8500 RPM

Frequency : 712hz

Rotor Circumference Speed : 193km/h

Possibly the fastest ssg on the planet

Watch this space

[Sephiroth]

YouTube - MG-1 : 8550rpm, 712hz, 193km/h

[blackchisel97]

Very nice Seph

[coltyn]

good stuff man

[cody]

Hey Seph,
Wanted to comment on your wire configuration. You said that you currently are using a series parallel wiring for the coils. A little something you may or may not know about coils in parallel:
Coils in parallel have a tendency to collapse into each other rather than coming back out. Ive seen your scope shots and can see that obviously the field is collapsing, so this might not be an issue for your particular setup, but its possible that it is hindering some performance. The effect is very similar to gotolucs recirculating coil energy thread. This parallel coil effect has been pointed out by Peter L. and Aaron many times, and was strongly recommended by peter that it shouldnt be used if your trying to collect the collapsing field. Just a little something i thought you might be interested in, I know your still playing with things and i look forward to seeing it complete

[cody]

A little more on my post above, just to help avoid confusion. I am aware the bedini and others use parallel configurations, but if you notice, they always have seperate transistors for each coil, they are not linked in parallel off just one transistor. Giving each coil its own switch gives each coil its own path to collapse, that way you dont have to worry about them collapsing back into eachother. You will find some people who do use the parallel coils off just 1transistor, but that is because they are trying to collapse the coils into eachother and that is their desired effect, but thats a whole different beast.

[Sephiroth]

Hi cody,

Sorry, I thought I replied to your posts!

The thought had occurred to me though as you said I was just experimenting and couldn't really afford to splash out on 10 MJL21194 s anyway

Anouncement

MG-1 is on hold but I have nearly finished the MG-2!



MG-2 « The Underground Lab : Blog

I left my camera at work which has nearly all the pictures of it so I'll have to upload those tomorrow. Sorry.

Oh yeah, and I've changed the "Current Projects" section of the website into a wordpress blog with all the usual features

[Sephiroth]

Update from the Lab...

Progress with the MG-2





Still using a bedini ssg circuit until I can put together a circuit that will let me pulse the coils the way I want to

The website is down for technical reasons... my useless hosts decided to upgrade and it has messed things up but the blog is still up and running and I have posted brief details there:

MG-2 « The Underground Lab : Blog

May post a video if I have time...