Variable pitch screw or screw on rotary

[Yasser47]

I am trying to make a g code with artcam to operate my 4 axis mill (mach3) to make a scroll like this
https://youtu.be/KAAajypWQyw
I have the cad file. Any help plz

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[Kiwi]

Please post some specs of the screw, length, pitch, dia of screw, dia of cutout, etc.