f100		(faster than possible-mach3 will throttle back)
g21 		(mm and absolute)
m98 p1 l5	(run subroutine 5 times)
m30		(rewind and stop)


O1		(letter o - this subroutine must be run 5 times)
g01 z-10	(first position)
g01 z1		(do a feedrate move and move back)