Bedini SG

[blackchisel97]

Nice, I wonder have you thought of placing an inductor "with core" into the middle of your starship and measuring the voltage across the ends of the winding ? I wonder what is going on in there. Mindboggling

Will try that. I'm curious too

Thanks
Vtech

[Farmhand]

Nice, I wonder have you thought of placing an inductor "with core" into the middle of your starship and measuring the voltage across the ends of the winding ? I wonder what is going on in there. Mindboggling

[blackchisel97]

Another Starship experiment

I want to try another pattern tomorrow, trifilar and see if I can wind one wire -180deg. I wonder if this may allow me to pull something useful without other coil noticing

Well, I tried another Starship coil today. I made quad but only used 3 windings atm. in Litz fashion. I used the same circuit as per my last vid. except that I rectified output from the third, capped with 10 000uF and connected 12V/5W bulb to it. To my amazement input voltage remained the same but input current dropped from 1.45A to 1.36A. There was a slight difference in the waveform with additional ringing in the middle of horizontal part of "h". Spikes dropped from over 50v to about 46V. However, my amazement didn't last long when I discovered that charging became much slower. Oh well, nothing for free today I guess

Update: I used litzed coil in "normal" bifilar self oscillating configuration. Waveform is nicer than my other coil and spikes are at 55V. Circuit oscillates at 10kHz and is charging well.


Vtech

[blackchisel97]

Oh my goodness that is incredible, is it "just a coil" though, it's magnificent. I think it's more than a coil it's almost working art. The wavefrom is neat. And it's charging that battery good and proper. I can't imagine how a thing like that is made, I have trouble winding four wires on a spool and keeping it neat.

Awesome.

Thank you for the kind comment Farmhand. Actually, it is very simple to wind compare to some coils I had to deal with. All you need is printable protractor from the net which you can glue to the piece of plywood and 1 pkg of wooden golf tees. Plastic ones will bend. You can't get it wrong since the pattern is very clear and if you go to the wrong pin you'll see immediately. I want to try another pattern tomorrow, trifilar and see if I can wind one wire -180deg. I wonder if this may allow me to pull something useful without other coil noticing


Vtech

[Farmhand]

Oh my goodness that is incredible, is it "just a coil" though, it's magnificent. I think it's more than a coil it's almost working art. The wavefrom is neat. And it's charging that battery good and proper. I can't imagine how a thing like that is made, I have trouble winding four wires on a spool and keeping it neat.

Awesome.

[blackchisel97]

StarShip Bedini

That will work too, good thinking, can't wait to see it spinning.

Cheers

Me too Got home for a few days only and too many ideas which were "brewing" in my head for the past few weeks. This was one of them - YouTube - Self Oscillating Starship Coil


Vtech

[Farmhand]

The problem with your shaft is disappointing to say the least, all I can think of is maybe to use bearings that fit the rotor hole that have a smaller diameter central hole "the size you want" and have a new shaft made. You gave me an idea Leave those bearings, since the work very smooth and use a spacer tube in inner hole to accept thinner shaft. Still need a flange to be made.

That will work too, good thinking, can't wait to see it spinning.

Cheers

[blackchisel97]

blackchisel97,

.

I am green with envy I would love to build a SG like you are. I feel the same watching 10 coiler running on others benches. I couldn't find anyone locally to make a decent rotor for a while. After several builds based on large hard drives, pulleys and bike wheels I was finally able to save a $ to order this one. I have enough wire to wind 2 coils at most and enough transistors for such. Remaining 4 will have to wait a bit

The problem with your shaft is disappointing to say the least, all I can think of is maybe to use bearings that fit the rotor hole that have a smaller diameter central hole "the size you want" and have a new shaft made. You gave me an idea Leave those bearings, since the work very smooth and use a spacer tube in inner hole to accept thinner shaft. Still need a flange to be made.

Cheers

Thank you
Vtech

[Farmhand]

blackchisel97,

The rotor itself was done well. Magnets slide from the side since the slots are slightly tapered and will be epoxied as well. I'm just unhappy with the diameter of the shaft, fastening nut and lack of flange. I think I'll ask them to cut off most of the unthreaded part and make a round flange threaded inside which can be fastened to the vertical part. I'll need a 1/2" or less spacer between the wall and rotor side too

.

I am green with envy I would love to build a SG like you are.

The problem with your shaft is dissapointing to say the least, all I can think of is maybe to use bearings that fit the rotor hole that have a smaller diameter central hole "the size you want" and have a new shaft made.

Cheers

[sucahyo]

The rotor itself was done well. Magnets slide from the side since the slots are slightly tapered and will be epoxied as well. I'm just unhappy with the diameter of the shaft, fastening nut and lack of flange. I think I'll ask them to cut off most of the unthreaded part and make a round flange threaded inside which can be fastened to the vertical part. I'll need a 1/2" or less spacer between the wall and rotor side too. Just got home and have to get few things done, including pyramid modification (have some interesting observation with use of crystals - will post in pyramid thread later), multistrand for my solid state, start assembling cap pulser and couple more, if time permits.


Vtech

I see. Look forward for the result .

[blackchisel97]

That is sad news. How about tying the magnet with car fanbelt at side? to leave some gap in the middle. usually fanbelt available at various size and it is very strong.

The rotor itself was done well. Magnets slide from the side since the slots are slightly tapered and will be epoxied as well. I'm just unhappy with the diameter of the shaft, fastening nut and lack of flange. I think I'll ask them to cut off most of the unthreaded part and make a round flange threaded inside which can be fastened to the vertical part. I'll need a 1/2" or less spacer between the wall and rotor side too. Just got home and have to get few things done, including pyramid modification (have some interesting observation with use of crystals - will post in pyramid thread later), multistrand for my solid state, start assembling cap pulser and couple more, if time permits.


Vtech

[sucahyo]

Now I have to figure out how to modify that in simple way to be useful for my project. I'm tired of working with people around

That is sad news. How about tying the magnet with car fanbelt at side? to leave some gap in the middle. usually fanbelt available at various size and it is very strong.

[blackchisel97]

Great rotor.... looks awsome for a Bedini Window motor.....

You can probably drill out the ends of the shaft and thread the hole to whatever size and thread you like.... that would be easy.....

What are the materials it is made of?

Hopes and Dreams....

Tj

Actually, I was going to make a six multistrand coiler with it. I still have to calculate if I can fit 6 litzed AWG#18 plus one winding in opposite direction. It doesn't look like my spools will accommodate that. I may have to try #21 instead and keep #18 for multistrand solid state. I run trifilar #18 SS for the past couple months and I want to try 8 fillar coil with that.
6" x 2" rotor is made of aircraft aluminum and has stainless steel shaft, but the shaft is huge. I'm worry it may interfere in working setup. It wont bend, for sure


Vtech

[Farmhand]

Quote:
Originally Posted by Slinky
I couldn't reproduce this mornings fierce purple and white neon flaring up whatever I tried, perhaps leaving it primed but not spinning last night had some effect I know the neon is for safety and a tuned system doesn't need it but this was a very different effect to the neon glowing at high resistance.
I tried to show a friend who popped over without success and felt like a fisherman exaggerating how big his catch was.
Anyone know what I mean? I badly want to reproduce it and grab some macro shots.

Change the neon for a new one and it will probably flash purple again. Eventually the glass becomes silver and the purple flashes stop. I think there is a change inside the neon that stops it from happening.

Yes I do know what you mean I just got some new neons recently and WOW the difference is dramatic the new one's burn so bright it hurts, I can't wait to show someone. I got them cheaper by buying 30, I was taking them from old appliances to use, but I think they were made for 240 v and so they didn't protect some lower rated transistors at all. If there is one thing i will not skimp on in future it is the neons.

Regards

[Zooty]

I couldn't reproduce this mornings fierce purple and white neon flaring up whatever I tried, perhaps leaving it primed but not spinning last night had some effect I know the neon is for safety and a tuned system doesn't need it but this was a very different effect to the neon glowing at high resistance.
I tried to show a friend who popped over without success and felt like a fisherman exaggerating how big his catch was.
Anyone know what I mean? I badly want to reproduce it and grab some macro shots.

Change the neon for a new one and it will probably flash purple again. Eventually the glass becomes silver and the purple flashes stop. I think there is a change inside the neon that stops it from happening.