Re: G92 and M99 code uses?

thank you brain for the help! I have not found a manuel for
cncpro..yeager gives a few examples and labels what each G or M
number is to do. However its a little hard when I really don't
understand the examples to well. No Prob, I will work at it and
figure it out..more than likly look for a G-code programing book
soon. Luckly I also have everyone here for help. I will try your
example and see how I can make it work for me. thanks!
tauseef

--- In CAD_CAM_EDM_DRO@y..., Brian Pitt <bfp@e...> wrote:
> > The problem is I don't know how to stop the M99 code and if left
the
> > machine would keep doing this sequence until it burns out :) How
> > would I specify it to do the 50 holes in this example?
> >
>
> this is where conditional expresions come in to G-code
>
> start with V1 set to 0 and V2 set to 49
> move to first hole and
>
> N005 (drill nn holes)
> G81 R.50 Z-5 (single drilling with .50 raise and drilling 5 mm in)
> G80 (cancel drilling)
> G00 X1 (moving X axis 1 mm over)
> G92 X0 (This is the catch! RESETS the machine back to zero)
> V1=V1+1 (increment variable 1)
> /IF[V1 LE V2]N005 (if v1<=v2 do another hole -block delete will
end program)
> M02
>
> also works as a cycle counter to make x number of parts
> check the manual for the right format of the IF statement and
> the <= , I was using the Okuma format
>
> Brian