I would like an M30 at the end of my programs to rewind the program.

Below is a simple code I wrote, the M30 rewinds to program:

G21 G0 G17 G40 G49 G80 G90                  
G0 G90 Z35                  
T1 M6                  
G54     S   3250   M3
G0 Y0
G0 Y-70
G0 Z10
G1 Z3 F 1000
G1 Y-45 Z0
G1 Y 2070 F2000
G0 Z30   
M5
G0 Z-.1                  
M30


Below is header and footer from a similar program that does not rewind.

G21                           
G90                           
G53         Z   0               
T1 M6                           
G0 G90 G54   Y   -60                     
S   3250   M3
G43 H1         Z   15               
G1                F   250   

(program)

G0    Y   1810                     
M5                           
G0          Z   99               
G0    Y   2200                     
G53          Z   0               
M30   





Any idea why the M30 does not pickup in the second program?

   

   

Put your cursor behind, it, hit the Enter key, and then save it.

Mach3 won't see it if there's no CR after it.

This fixed the program, thanks!

Since the second code was created in Excel I just added a period to the line below the M30 and the program now rewinds.