PROBOTIX

I may me wrong on M30. See this.
http://linuxcnc.org/docs/2.6/html/gcode/m-code.html

I would not think you would need any tool offset either unless you are using multiple tools in the same toolpath and using the Probotix tool sensor.
Where does it go when you click on go to xy? Some of those buttons are hard coded in the .in file.
M30 should not matter.

G43 is a tool offset. Make sure that you use a g49 (cancel offset) before running another toolpath with a different tool. I believe that LinuxCNC remembers that offset even after restarting your PC. Here is a good read. -programming-tips.blogspot.com/2014/12/g43-g44-and-g49-tool-length-compensation....

Are you zeroing z to the top of your material or to the bed surface?
Are you sure when you set z zero that you have G55 coordinate system selected?

You can remove it if you want. Keep in mind, that it is probably in there to safely move the axis to a known position. G53 commands are only good for that specific line, unlike G54-59 which are modal ( I believe that is the correct terminology). As long as you always specify your coordinate system a...

Ken, A couple of ways you can figure this out. Look at the last couple lines in your toolpath file and look to see if G53 or G54 are there. If so, then that is where you are changing work coordinates from G55. Another way is to go in to the MDI tab right after the file finishes running and it will t...

Thanks for the details. What did you use for the vac pump?
Dave

Not to hijack this thread, but Ken, can you tell us a LOT more about your vac table? That looks really nice.

Dave

I think it is: probotix

Please post pictures. Thanks