Need Help!- repeating hole paterns

[JRTurner]

I have run a CR onsrud for 9 years with a AMC controller and Mastercam software. I am now programming a Matsurra mill with a Fanuc 11M controller using bobcad (which I find pretty useless) so I have been programming it line by line. I need to drill an 11 x 11 grid of holes spaced at.69" apart how do I repeat the movement in the x and y axis without having to call out every point?

I know it is probably a very easy thing to do but I will appreciate any hints of help I can get

Thanks

[dcoupar]

This might work. It's been a long time since I've programmed an 11M.

%
O1000 (MAIN PROGRAM)
G0 G40 G80 G91 G28 Z0
T1 M6
G54 X0 Y0 S2000 M03
G43 Z0.1 H01 M08
G81 Z-0.28 F10.
M98 P1001
G91 G28 Z0 M19
G28 Y0
G90 M30

O1001 (DRILL SUB 1)
G91 X0.69 L10 (DRILL 1ST ROW)
Y0.69
X-0.69 L10 (2ND ROW)
Y0.69
X0.69 L10 (3RD ROW)
Y0.69
X-0.69 L10 (4TH ROW)
Y0.69
X0.69 L10 (5TH ROW)
Y0.69
X-0.69 L10 (6TH ROW)
Y0.69
X0.69 L10 (7TH ROW)
Y0.69
X-0.69 L10 (8TH ROW)
Y0.69
X0.69 L10 (9TH ROW)
Y0.69
X-0.69 L10 (10TH ROW)
Y0.69
X0.69 L10 (11TH ROW)
G80 G90 M09
M99
%

[Caprirs]

Not sure about the Fanuc, but the Mitsubishi M3 and M520 controls have G37.1 which does a grid pattern for drilling/tapping. Is there something similar for the Fanuc?

[tobyaxis]

Write the main like dcoupar suggests then your sub. You can add as many y rows as you like. This is a quick and dirty method that comes in very handy when in a rush.

%
O1000 (MAIN PROGRAM)
G0 G40 G80 G91 G28 Z0
T1 M6
G54 X0 Y0 S2000 M03
G43 Z0.1 H01 M08
G81 Z-0.28 F10.
M98 P1001L14
G80

G90G0X?Y?
G81Z-.28F10.
M98P1001L14

G91 G28 Z0 M19
G28 Y0
G90 M30

Write your sub like this

%
O1001
G91X.1
%

[JRTurner]

Thanks
I had tried that but in the main program not the sub.



N10G17G90G40G80G54
N20G0G40Z1.5M9
N30G91G30Y0Z0
N40M6T12G90
N50(5/16 DRILL)
N60G43Z4.0H12
N70M3S700
N80M8
N90G0X1.12Y1.31
N100G83X1.12Y1.31Z-.625R.1Q.1F300
N110G91X.69L9
N120Y.69
N130X-.69L9
N140Y.69
N150X.69L9
N160X-.69L9
N170Y.69
N180X.69L9
N190X-.69L9
N200Y.69
N210X.69L9
N220X-.69L9
N230Y.69
N240X.69L9
N250G80G90
N260G49G28Z0
N270
N280

I will ty it both ways.

Thanks for your help