Hi,
I'm completely confused with G-code subroutines or, more particularly
with the possibilities of nesting them. What I am trying to achieve -
and failing miseably - is to write a generic script which will
cylindrically grind a shaft to several diameters and each of different
lengths. I want to be able to enter into a set of variables the various
diameters and lengths and have the script sort out the rotations of my
'A' axis and step the grinding wheel along the right number of times to
get the full length (I'm only at roughing cut stage - I haven't even
considered a finishing cut yet....). So, I can set the starting
diameter, ending diameter and depth of cut and work out the number of
turns of A necessary and put that in a subroutine (maybe called 'cut' or
something similar). However, I next want to move the grinding wheel
along and repeat the same cut several times to achieve the full length
(the grinding wheel being less in width than the cut length). This would
seem like another subroutine doing a 'while less than' loop but it then
wants to call the first subroutine to make the cuts. From the
documentation the WIKI says that:-
* Subroutine declarations may NOT be nested.
* Subroutines may be called anywhere (but must be declared before
they are called. They may be called from other subroutines, and
may be called recursively if it makes sense.
* while and if may be nested. They may not overlap without nesting.
I don't think I fully understand this - can I call one subroutine from within
another or not?? If not, how could I achieve what I want to? Thanks,
--
Best wishes for whatever your holiday season is and my good wishes for a
peaceful and prosperous new year,
Ian
____________
Ian W. Wright
Sheffield UK
"The difference between theory and practice is much smaller in theory than in
practice..."
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