This is a common issue due to the length of these cuts, and us not having a sound-proof lights-out unattended machining facility
.
Check out this post:
http://www.cncsharktalk.com/viewtopic.php?f=2&t=5729
We talk about doing that very thing. In your case, you could take that huge file, and find a "safe" place in the GCode to insert the
hunk of "pause" code. Indeed, if you have more than one toolpath (say, carvings, letters, profiles, etc.), there will be some
designation between then in the jumbo-sized TAP file. But be careful...this kind of thinking will make you start editing post
processor files faster than you can run that first job
.
Hope that gets you moving. It is possible, and I do it all the time. But, you can NOT jog during any pause in a running program.
So, if your process requires manual jogging, bit changes that aren't height-set exactly equally, or anything but part manipulation
and pausing, you'll run into walls. If you need those things, the only real option is to split the file up into chunks.
In that case, you'll need to locate the dozen-or-so lines at the top (header, preamble, etc.) and bottom (postfix, cleanup, etc.).
Copy those to a file, and then as you chop up the GCODE into chunks, make sure each section has its own top and bottom.
Hope that helps,
Thom