Just data points I guess, given that I have an assortment of colors.
On the ESAB 875 plama cutter the clamp appears to be a robust jumper cable clamp*, possibly steel plated copper clamp but the plasma cutter doesn't require a lot of current compared to the welders ...
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On the Miller Dynasty 350 tig has a significant steel clamp with robust copper pads ...
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On the Lincoln Power Mig 300, again a significant steel clamp with large copper pads ...
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* Those of you in the colder climates will understand the term. Those in warmer areas may have to look it up
I had to go out to the garage with a file to find out if the clamp on my MM180 was copper plated steel. It is, but it seems robust enough for me.
But there is evidence of arcing.
Ed
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Here's a couple of pics of my latest welding clamp. The contact points are cast brass and seem to conduct well but the clamp spring is so strong I have to use both hands to open it. I look like a four year old trying to open a clothespin.
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Just don't
act like a four year old and clip it on your tongue Steve.
(05-30-2014, 06:25 AM)stevec Wrote: [ -> ]... the clamp spring is so strong I have to use both hands to open it. I look like a four year old trying to open a clothespin.
Steve,
That's exactly what I have to do to open the replacement clamp I got for my welder. That's why I haven't installed it yet but now that I see evidence of arcing on the existing clamp, I think it's time to revert to looking like a four year old, again.
Ed
[
attachment=8635][attachment=8634] [img]Before I show the shop to everyone ,first let me make all the excuses for why it looks like the site of a recent tornado , I have been very busy as of late and am getting further behind weekly . That done , I am also getting lazy as hell-o ,by the end of the day .
My wife thinks it's temporary insanity , (wonder where she gets temporary from ?) .
anyway , Here goes nothing :this is my bridgeport circa 1969 , type ll , the Cincinnati lathe , and a delta drill press
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attachment=8636]For some reason I can't seem to upload more than one photo at a time , it says they are too large , ( haven't heard that for a while:) ,anyway here's another one of the shop , mustang is for one of my kids , stage 3 Roush supercharger and a few other tricks , approx.750HP .
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attachment=8638] here we go again , more shots of the shop , I hope !
just drill bit sharpener and grinder