Live adjustments of Z axis whilst cutting

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Live adjustments of Z axis whilst cutting

Postby Rad » Thu Jan 02, 2025 1:49 am

Hi, I sometimes use my plasma table to flame cut thicker plate using oxy-fuel.

I'd like to know if there is a way to control the Z axis up and down to finely adjust height whilst oxy-fuel cutting. Is this possible? I know you can use a capacitive height sensor but I only do flame cutting rarely.

would like some ideas, thanks in advance
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Re: Live adjustments of Z axis whilst cutting

Postby cncdrive » Thu Jan 02, 2025 3:00 am

What about using a freely moving Z axis and a mechanical plate to follow the plate height?
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Re: Live adjustments of Z axis whilst cutting

Postby Rad » Fri Jan 03, 2025 11:30 am

Yes good idea something like a floating head but with a wheel that rolls on the plate that maintains a fixed height? I was hoping I could just use my current z axis and make adjustments on the fly. Maybe the thc up/down inputs can be wired to buttons??? Or if there is a way I can do it in UCCNC that would be awesome
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Re: Live adjustments of Z axis whilst cutting

Postby RsX » Fri Jan 03, 2025 1:09 pm

With a macroloop you can check the sensor input and make a small movement (eg. 0.05mm) every 100ms.
Then you are going to need a toggle button, like the soft limits one, to enable and disable the macro, and a couple of macros to switch the button on and off in the gcode.
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