- Thread starter GeorgeB
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graffian
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might want a couple more capacitors, but the postage from the us would be way to high.
The capacitor I have is a heavy metal can item,can't remember exactly but around 1uf.
I don't know the power ofthe microwave,or transformer, the details off it are in another post.
The capacitor I have is a heavy metal can item,can't remember exactly but around 1uf.
I don't know the power ofthe microwave,or transformer, the details off it are in another post.
rtbcomp
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I did send you a PM ages ago offerring you some.
graffian
Seer unto the end of his beard
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Just read your pm, don't quite know how I missed it?
I will want one to run a coolant pump, not sure on size,
I am using around 1uf on a 10W motor on the oil pump, the coolant pump is humongous[wouldn't be suprised if it was 1/3hp or so], I might well go for something smaller.
Not looked at the mill for a few weeks, must get it finished.
I will want one to run a coolant pump, not sure on size,
I am using around 1uf on a 10W motor on the oil pump, the coolant pump is humongous[wouldn't be suprised if it was 1/3hp or so], I might well go for something smaller.
Not looked at the mill for a few weeks, must get it finished.
rtbcomp
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No probs, just give me a shout if you need one or two or three.
graffian
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If the tips are small and your not getting any heat I have no idea what wrong, I can't see hopw that's possible?
look for things getting hot, ideally the heat is between the tips. resistance anywhere in the secondry is going to show as it will get hot.
maybe someone that uses a spot welder might have some idea.
look for things getting hot, ideally the heat is between the tips. resistance anywhere in the secondry is going to show as it will get hot.
maybe someone that uses a spot welder might have some idea.
rtbcomp
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You have got each end of the thick wire connected to a tip, and not one end to a tip and the other to the workpiece?
I have 670 volts dont know how many amps that is. getting heat olny one side getting red only when i move tips back and fourth do u know how many amps are in 670 volts?
That doesn't make sense at all! Where are you measuring the 670 volts?
I have 670 volts dont know how many amps that is. getting heat olny one side getting red only when i move tips back and fourth do u know how many amps are in 670 volts?
That doesn't make sense at all! Where are you measuring the 670 volts?
graffian
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I had about 1V per turn.
Can't see how you managed 670V. Maybe you should go
and buy a spot welder. I managed the welds on the parts I posted pics of, with a home made setup, but the welder I was given soon after doing that is so much better.
Can't see how you managed 670V. Maybe you should go
and buy a spot welder. I managed the welds on the parts I posted pics of, with a home made setup, but the welder I was given soon after doing that is so much better.
Something must be wrong! A typical spot welder produces just 2 or 4 volts on the output. That's from 240v mains in the UK. I'm not sure if a spot welder still works off roughly 2 or 4 volts in the USA but it can't be much different.
If your input is 110v and there are hundreds/thousands of windings on the primary, then you'd need roughly 6x that number of windings on the secondary to produce 670v, i.e. thousands of windings in all likelihood.
There should be no electrical connection between the primary and secondary. One side of the secondary output goes to electrode 1 and the other side to electrode 2, with your two sheets of metal in between, for spot welding together. If the voltage really is 670v, then the output current will be tiny and there's no way it will produce a weld.
Do you have any photos you could post here?
