Dreaded Torch moving before cutting voltage sensed

You’re going to have issues “cutting” the same cut paths because you no longer have metal to cut underneath it.

If these are your first cuts, you should actually be doing test cuts to figure out your correct kerf width, dialing in cut speeds (for each thickness), as well as pierce delays and speeds.

Doing any design work as a first-timer leads to wasted material, wasted time, and frustration.

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Sure is, and with 3/16 on top of that. I’d bet I already need another nozzle. I’ll have to hook up with George very soon.

The compressor range is 95-140. It hasn’t run low yet.

I’m guessing, but the limited 10 g supply coming from the house is probably heating up along with the breaker causing a less conductive condition, laboring the demand of the cutter. What do you think?

The limit switch cure made me laugh. I like the way you think. They’re going in my switch box for something else on down the road.

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The high load on the 10-gauge wire creates resistance, and 220 volts underload is 215 volts or less. The hotter it gets, the more resistance you get. The cutter will stop functioning when it gets low enough. Like George said, # 4 wire for 60 amps. #10 for the 30 amp circuit. This is an issue that needs to be addressed regardless. You don’t need a fire.

WORK CLAMP ON THE METAL :rofl:

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It was actually on the plate at the time I cut it. That photo was take right after I slid it back on while the cutter was out of the way.

No, I have a 60 amp on the cutter, a 30 amp for the compressor and a 60 amp at the service. I don’t know where 30 amp came in. Maybe I miswrote something.

Ok no problem

If the compressor is like 3 1/2 hp then 10 gauge 240 volt will work. You need 50 amp/240 volt for most plasma cutters and welders, 6 gauge wire. And the main 60 amp would need 4 gauge/ 240 volt.

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I see your point. I’m pretty sure it’s 10 gauge. Might be 6, I’m not sure now. I put it in 20 some years ago. That’s why I want to increase the gauge and replace the breaker. Up until now, I’ve never had to use both 240 circuits at the same time. My welder is 240, but never had to use it with the compressor at the same time. It was mostly for painting. The other plasma cutter I just bought, and hasn’t been used yet. It would have been a repeat I’m sure. Thanks for explaining the code. It’s been a longtime since my days as an generator electrical engineer (52b30) in the Army.

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Perfect. That make sense. I’ll follow that advice. Thank you.

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I agree. I did do some precuts on a sheet of 1/8, needed to get going on this project. It’s been almost a month since I put this table together. I’ve been following all the references and getting some great advice along the way from some of the best. Finding obstacles, lots and lots of them in a normal half days time is my lifestyle. Solutions and a lot cursing take up the other half. Good advice though. Thank you.

Finished it with some gas. Thanks for your help.

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Gas? Nitrogen?

A quick and easy isolation test if you start getting the “Torch moved before voltage sensed” error, is turn off the THC and try again. This will narrow the problem down and make it easier to diagnose.

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I like the detail of this little loop. It makes it look like it’s some kind of knitting or macrame that’s loose at the bottom. Cool detail

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No, I brought out my ole oxy/acetylene bottles. Cheated. Only needed to cut a few inches.

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Cheater….

Haha

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Thanks, but I can’t take the credit. It was copied from someone else’s work, Celtic Tree of fife.

:rofl: Oop… you a laugh out of me! I needed that.

Cool! I’ll try that. I live in Florida where we get a sht load of lightning around this time of the year, so everything gets unplugged while not in use. However, if this happens again midstride, I’ll use that hack. Thanks.