Someone please help me understand subroutines??

[Metal Flake (clocked in)]

Greets to the group! I'll try to explain without sounding like a rant. I have a successful program on a Makino Horizontal. Now that its proven, I need to duplicate all the cuts to make 3-total parts on one face of the tombstone. Sub's seem to be a good way to do this. I think I want to have a looping scenario so that one cutter does its thing at offset P1 then repeats the same cuts at offset P2, P3 etc... Then do the same thing with all the remaining cutters.

 

If I could define the offsets as a variable then have the variable increase by 1 unit each time through the sub I could space the cutting out by the difference of the offset values in the control--right? Then at some point before the subpreogram re-wind, have a if/then statement that kicks out of the loop after the variable reaches some maximum value.

 

Then repeat the whole process for all the other cutters.

 

I've searched for sub-routine here but didn't get too far.

 

I'll keep looking around though.

 

Thanks alot for any input!!!

 

Dan

[JG]

How about:

#100=54

WHILE[#100LT57] DO1

G#100

:code:

#100=#100+1

END1

[Metal Flake (clocked in)]

JG. Can you point me to a reference that explains all that? I think I follow the logic but I don't know how to apply it.

 

Thanks!!

 

Dan

[heeler]

You could just do a transform translate subprogram. We do this all the time. You can select a distance to offset it, or just have it do it by offsets (G54, G55, ect).

 

I think that this is much easier to do with MCAM than by altering subs on the machine.

 

JM2C

 

Glenn

[Metal Flake (clocked in)]

I'm checking it out now. Thanks Glenn.

[JG]

MetalFlake,

first off, I agree with heeler, keeps the MC file current.

As for the reference material, I found macro B examples in the fanuc books that came with the machines.

 

thanks,

 

Jg

[Psychomill]

If you already have a set up with 3 parts, I'd just use M98 sub calls and run at G54, G55, and G56 (or G54.1 P1, P2 and P3). And if you want, you can set block skips to the last two offsets and only run one part (in case you move it to another machine)... even set for block '1' and '2'... then you can run just 1 part, 2 parts or all 3.

 

Do you have a Data Server on the machine? After you create subs, you can put all of the subs in the back then only have the 'main' program up front. Saves a lot of front memory for a lot of part programs.

[tryon]

i do something like this

 

#100=3(HOW MANY PARTS)

G0G90G54.1P1X0Y0M3S3423

G43H1Z25.4

M98P1L#100

 

 

O1

X0Y0

;

;

G0Z25.4(LAST MOVE RETRACT)

G54.1P[#4012+1](CURRENT WORK OFFSET + 1)

M99

[Bpin]

In the old days when computer memory was scarce

and machine memory was tiny, we used subs to limit the program length so the machine could run without tying up the pc and we could multi-surface a part. ( which sometimes took hours nad hours.)

 

 

Just a word from an old-timer...