Well now, Today I had to "pause" a job because it wasn't quite done.

Well now,

Today I had to “pause” a job because it wasn’t quite done. I did write down the last line and sent the machine back to MCH Zero. and turned it off. How would you restart the job?

Restarting the job requires to edit the gcode file (make sure that you have a copy of the original file). Keep the ‘header’ part where units, feedrate are defined and remove ‘already done’ gcode instructions. Move machine to the last position (your noted coordinates) or add appropriate line e.g. G0 X5Y10 (assuming that you want to move X by 5 and Y by 10 units) to the modified gcode after header part but before first line of remaining gcode part. Make sure your Z axis tool height is correctly set. In case you changed tool in the collet, re-zero Z axis.

You may try air job first to see if you are on the right milling path after all modifications, just raise Z to a safe height, set the height by G28.3 Z0 and execute the job. Once happy with the air job results, set Z axis back to its previous height and G0 28.3 Z0 to tell your machine this is zero height again.
Keep your hand on E-STOP, so you don’t crack the tool, table, workpiece or other crucial parts of your machine.

In case you have homing switches enabled and touch probe operating for the Z axis, you may freely move the machine axis between jobs and set it back to required coordinates whenever needed.

ChiliPeppr has an airplane icon button in the Gcode widget that lets you jump to a line number. Then you can click on the “Start Gcode from this position” button on the flyout menu of that line. However, like Sebastian said you have to setup your feeds and speeds correctly if you are going to start from an alternate line.

There is also a menu in the Gcode widget which shows all tool changes. That may be useful as well especially since most tool changes have gcode lines that reset feeds/speeds.

Okay so if I knew the exact line number in my gcode to start from and try to “start from this position” all my feeds and speeds are not going to be present? Right now the machine is off and in the last known MCH Zero position. Line 6763 basically at the very end of last step down passes I completed before stopping. “N33800 G0 Z2.”

So if “N33805 X51.495 Y215.14” is the very next move it seems the machine would lift then move to this X/Y prior to plunging back down into the material at the next step down pass.

N33810 Z1.
N33815 G1 Z-8. F100.
N33820 Z-10.683 F50.
N33825 X51.5 Y215.146 Z-10.753
N33830 X51.514 Y215.165 Z-10.82
N33835 X51.536 Y215.195 Z-10.88
N33840 X51.566 Y215.236 Z-10.931
N33845 X51.602 Y215.284 Z-10.969
N33850 X51.642 Y215.338 Z-10.992
N33855 X51.684 Y215.395 Z-11.
N33860 X51.874 Y215.649 F100.
N33865 G2 X52.318 Y215.714 R0.318
N33870 G1 X52.868 Y215.315
N33875 X53.427 Y214.928
N33880 X53.995 Y214.555
N33885 X54.572 Y214.194 (and so on)

I went for it! and it is milling as we speak. Wort part of it waiting. I am so anxious to pull it off the bed!