Torch dragging

Cut quality issues can be discussed here, most common issues have been discussed here and should help you.
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Brendog44
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Torch dragging

Post by Brendog44 »

Hi there, trying to cut thin mild steel at 2.5mm but the torch seems to be dragging itself around rather than cutting at its normal level. Also the dthc isn't lifting the torch up. Only seems to be an issue on the thinner sheets still seems to be cutting 6mm and above okay. Does anyone know a fix for the problem.

Thanks.
sphurley
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Re: Torch dragging

Post by sphurley »

A "little" information on your system would be the first step.
Steve
Platform CNC Plasma table
CandCNC Ethercut IV DTHC
Hypertherm 85/CPC/RS485
Miller 350P
Miller Dynasty 280DX
tcaudle
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Re: Torch dragging

Post by tcaudle »

If it cuts thicker material okay then its a setting. Its trying to keep the voltage DOWN . With no info on what settings you ae using, what kind of torch/plasma, what consumables, etc, etc
What does it do if you turn off the THC ? What is the actual torch volts during a cut with the THC disabled?
Brendog44
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Re: Torch dragging

Post by Brendog44 »

It's a swift cut 3000WT
tcaudle
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Re: Torch dragging

Post by tcaudle »

Swift Cut UK?
Brendog44
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Re: Torch dragging

Post by Brendog44 »

Yes new development it's not saying 0-50 retaining cap off when it's not?
Brendog44
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Re: Torch dragging

Post by Brendog44 »

Now saying *
tcaudle
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Re: Torch dragging

Post by tcaudle »

That is a signal from the Hypertherm and its sensed by a small switch at the retaining cap. Being loose can cause that. The RS485 interface to the Hypertherm sends the message back to the control screen. It just reports what it gets from the Hypertherm electronics.
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