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General Mach Discussion / Subroutine Using M98

« on: August 18, 2009, 07:52:14 PM »

This is the first program I've ever written in G code, and surprise, surprise it doesn't work! I'm trying to create a subroutine to change my Z position by three thousands of an inch increments. I know there are a lot of threads on here that already discuss this topic, but I haven't been able to find a solution that makes this code work. This is what I have:

G00  G49  G40.1  G17
G80  G50  G90  G98   
G20  (Inch)

G52  Z0.003
M98  P1
G52  Z0.006
M98  P1
G52  Z0.009
M98  P1
G52  Z0
G00  Z-0.01
S1300
G04  P2000
G01  X-6 F10
S0
G04  P1000
G00  Z0.5
G01  x0 F200 
M30
O1
S1300
G04  P2000
G01  X-6 F30
S0
G04  P1000
G00  Z0.5
G01  x0 F200   
G00  Z0
M99
%

I'm sure my code is fundamentally flawed, but if you know what I've missed I would appreciate knowing!

Thanks!