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multiple gap question



Hi All,
I have assembled a multiple gap to try with my bipolar coil. I have eight 
1-inch diam copper sweat fittings that I have tried to gap at 0.022. I have 
it running on the coil and all the sparks are along the same outer edge of 
the copper cylinder. Why did I buy the couplings?
Couldn't I have simply sliced cylinders off of 1-inch pipe. Is this normal? I 
found it very difficult to get all those
"ducks" lined up in a row so that the parallel sides are gapped within 5/1000 
of 0.022.
Does someone have a technique figured out for doing this and producing  
consistent
results?

Cheers,
Ralph Zekelm