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olddawgsrule
Advanced Member


USA
1434 Posts

Posted - January 28 2012 :  06:18:42  Show Profile  Visit olddawgsrule's Homepage Send olddawgsrule a Private Message  Reply with Quote
Well, I'm staying away from the tutorial thread and I'll ask here...

I've been having issues getting my trig wire to come up as a run on my Sampu setup.

My belief now is; I have a 'bad' wrap or wire.
So I'm going to pull it and re-wrap/replace the trig wire.

What would be the con's to replacing the trig wire with my larger run wire?
I'm going to use it as a run...

I'm assuming a larger draw to run, but wouldn't it give a greater output as well?

Old in age, not in mind, so
'Teach me something new'!

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iaec
Forum Admin



1033 Posts

Posted - January 28 2012 :  17:38:29  Show Profile Send iaec a Private Message  Reply with Quote
Hi ODR,
The trigger wire is just for that, triggering the transistor :)
But i`ll leave this one for the expert on here to give you the best possible answer.
But if you follow the TM design it can give you b-emf to wich is always nice as its not being wasted than :))

TimberJack

***Possibilities Within The Impossible***

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49er
Administrator



USA
4426 Posts

Posted - January 28 2012 :  17:53:29  Show Profile Send 49er a Private Message  Reply with Quote
Hi ODR

TJ hit the nail on the head nice pun. LOL Measure your trigger wire only and tell us what it is?? We can go from there

Doug
The sky is not the limit...There are footprints on the MOON.
Your only as DUMB as where your standing.
No matter where you go there you are.
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49er
Administrator



USA
4426 Posts

Posted - January 28 2012 :  17:56:19  Show Profile Send 49er a Private Message  Reply with Quote
Hi ODR

Its been a long time sense I used this one. If you warped tour coil backwards then just swap ends and try to start.

Doug
The sky is not the limit...There are footprints on the MOON.
Your only as DUMB as where your standing.
No matter where you go there you are.
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olddawgsrule
Advanced Member



USA
1434 Posts

Posted - January 28 2012 :  21:12:57  Show Profile  Visit olddawgsrule's Homepage Send olddawgsrule a Private Message  Reply with Quote
Sorry guys, did it again..
Didn't say enough.

I have the Sampu running and the first coil has both trig & run working great.

The issue has always been bringing the other 3 coils up full (that's all I've built so far).

Poppy's layout has the trig's parallel to the runs on the additional coils, then parallel to the next coil and so on back to the first coil (which runs the rotor).

I managed to get the other 3 coils up with runs only connected.
Meaning, those trig's that I'm supposed to be using as runs are not connected and the issue.

So what I've done is used only the run wire on each additional coil to bring at least that up.
Each time I try to connect the additional trig's, parallel to the runs (on the second coil), I stall the rotor.

I did think about the possibility of wrapping the trig backwards..
but my wrapping device forces one direction only.
Then thought I just put the wire to the wrong terminal, thus having ST/ET backwards..
and did try reversing the connection.

Same result.. rotor slows to a stop.

I assumed at that point I have a short (coating weak/chipped/?) in trigger wire.
I also assume, if shorted (not broken), I would still have continuity.
This is salvaged wire.

So the question became; Since it's my second, third, fourth coils, why not replace with more run wire (heavier gauge).

Old in age, not in mind, so
'Teach me something new'!

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49er
Administrator



USA
4426 Posts

Posted - January 28 2012 :  21:50:59  Show Profile Send 49er a Private Message  Reply with Quote
Hi ODR

Still need ohms on every wire and what size wire and may be how long is it so we can anticipate what ohms it should be.

Doug
The sky is not the limit...There are footprints on the MOON.
Your only as DUMB as where your standing.
No matter where you go there you are.
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49er
Administrator



USA
4426 Posts

Posted - January 28 2012 :  21:55:30  Show Profile Send 49er a Private Message  Reply with Quote
Hi ODR

Can you take a pic and post

Doug
The sky is not the limit...There are footprints on the MOON.
Your only as DUMB as where your standing.
No matter where you go there you are.
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Poppy
Average Member



USA
418 Posts

Posted - January 28 2012 :  23:06:57  Show Profile Send Poppy a Private Message  Reply with Quote
Hi Olddawgsrule...

Check with an ohm meter to see if your trigger is open or shorted or is there a reading on the ohms scale. You can use the same size wire for both trigger and run even if your using the trigger as a trigger. If the ohm reading is high compared to the trigger of coil 1 just disconnect it and wind more wire over the entire coil and use the new wire in parallel with the 2nd run coil.

Good Experimenting...
Poppy
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olddawgsrule
Advanced Member



USA
1434 Posts

Posted - January 29 2012 :  08:14:37  Show Profile  Visit olddawgsrule's Homepage Send olddawgsrule a Private Message  Reply with Quote
Doug & Poppy, thank you again for coming to help out!

The first coil (running great) the trig is 28g with (I believe is) 400 winds (lost my notes & didn't write it on the coil).
About 80' of wire.

Omhs read .014 (meter set @ 2K)

The second coil which has the run side only working is my original coil (first ever made) which has 30g trig wire and 200 winds.
About 40' of wire.
This is the one I'm dealing with.

Omhs read .010 (meter set @ 2K)

Runs on coil 1,3&4 are 23g wire
Run on coil 2 is 25-26g (salvaged wire)

I have a spool of 20g here and was looking to put that on the second coil (replacing my troubled trig wire)and give it a go.




Old in age, not in mind, so
'Teach me something new'!

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49er
Administrator



USA
4426 Posts

Posted - January 29 2012 :  09:29:39  Show Profile Send 49er a Private Message  Reply with Quote
Hi ODR

It has been my findings that no more than 3 wire sizes should be used on a motor. you might get it to work but I can't tell you how. But there are other ways to use the wire. Also the shortest length wire I would use is 100' the shorter the wire the less volts and amps it will produce. When measuring a coil set the meter to the smallest reading on it mine has a 200 ohm reading that will give you a .00 number and that makes it more accurate. Keep asking your questions as Kudzu says and I like it,The dumb question is the one you didn't ask.. I love it see ya

Doug
The sky is not the limit...There are footprints on the MOON.
Your only as DUMB as where your standing.
No matter where you go there you are.
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olddawgsrule
Advanced Member



USA
1434 Posts

Posted - January 29 2012 :  10:42:40  Show Profile  Visit olddawgsrule's Homepage Send olddawgsrule a Private Message  Reply with Quote
Well now.. That just put a whole new twist to my issue..

It may very well be the 4th wire size throwing it all off.

Learned something new today!
Thank you.

Old in age, not in mind, so
'Teach me something new'!

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49er
Administrator



USA
4426 Posts

Posted - January 29 2012 :  11:31:42  Show Profile Send 49er a Private Message  Reply with Quote
Hi ODR

Use your 2 biggest wire for trigger and power and use the smaller wire if you want for more power but on a separate wind coil no twisting needed. And start a thread in the pulse forum

Doug
The sky is not the limit...There are footprints on the MOON.
Your only as DUMB as where your standing.
No matter where you go there you are.
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shakamuni01
Average Member



USA
213 Posts

Posted - March 29 2012 :  22:12:13  Show Profile Send shakamuni01 a Private Message  Reply with Quote
Hi Guys,

Shak here. Still new to this game. What is a snapu. Sounds like a variation on the bendini monopole by the way you talk of it. I am trying to understand why people have several coils on the bendini wheel, when one is enough to charge the battery and run the wheel. Are the other coils doing something different or all being wired up to one battery. I suppose it would be more effecient to run several coils on one bicycle wheel.
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Poppy
Average Member



USA
418 Posts

Posted - March 29 2012 :  23:31:22  Show Profile Send Poppy a Private Message  Reply with Quote
Hi shakamuni01...

Multiple transistors and multiple coils give more charging power than a single transistor and a single coil. The Sampu Express is a variation of the SSG with 10 transistors, 1 trigger coil and 15 run coils. The winding usually employed as the trigger coil on 7 of the coils are also in parallel with the first run coil making the 15 run coils. These 7 coils could be put in series and connected to a FWBR or V-Doubler to add to the run battery voltage or to charge a second battery.


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shakamuni01
Average Member



USA
213 Posts

Posted - March 30 2012 :  02:23:44  Show Profile Send shakamuni01 a Private Message  Reply with Quote
Hi Poppy,

Does it make the charger more efficient or just more powerful? I saw the U tube but from the notes it looked like you were still tweaking it a bit to see if you can make it more efficient.
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