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There are a couple of ways of doing this in SheetCam. Fully automatic: In SheetCam open your cut operation and go to the 'Cut path' tab. Make sure Optimisation is set to auto and set the cutting rules to 'Keep parts together'. Make sure both the inside and outside contours in your drawing are on the...

Sometimes OnRapid can be called when X,Y,Z,A axes have not changed or have only changed by a tiny amount. In that case it will just output "G0". On the next call to OnRapid, it knows that G0 is active so it does not output G0 again.

Looking at that post, the height of the surface of the pipe is passed to the touch-off subroutine. Your touch-off subroutine needs to set the current Z position based on that value.

I had a quick look at the code and cannot see anything obviously wrong. Does the Langmuir controller have an option to pre-pierce your parts? If so it could be that you have that turned on.

I just had another look at the g-code and something looks wrong. What post processor are you using?

If the file cut correctly before the gearbox change it must be an issue with your machine. I have to admit I can't think of any obvious reason for it to do that.

If you set the ramp angle to a shallow angle it will have a similar effect.

In most cases I recommend putting all of your part outlines on one layer. If your drawing includes the outline of the scrap, put that on a different layer. Now you can use an outside offset and let SheetCam figure out inside/outside offsets. In your cut operation go to the cut path tab and make sure...

In your cut operation go to the 'cut path' tab and enable 'minimise thermal distortion' and set the distance to something like half the width of your part.
If that doesn't fix it I can modify the post for you.

I emailed you an evaluation license.

If you install the development version of SheetCam you can give it a try. I would welcome any feedback.

After watching your video I think I understand what is going on. That CommandCNC post tries to detect if you are using the parking option in SheetCam. If it thinks you are not using parking it automatically moves to 0,0. As you have found it can sometimes do odd things. Updating to the latest versio...

It could be that you are using a different post processor on your other computer. Some posts always return to 0,0.

That sounds like a license issue. In SheetCam go to Help->about. Does it show your name?
Try reinstalling the license. If you don't have a copy send me an email and I'll get a copy sent off to you.

I had a look at the support file you sent me and you need to enable parking. In SheetCam go to Options>job options->Parking and turn on 'Use X' and 'Use Y'. It will then move back to 0,0 (or whatever coordinates you enter) at the end of the job.