Cutting slots at various Z depths ??

[jwknow]

Is there a way to program a Haas using a canned cycle or a sub program to cut straight line slots using various depths on the Z axis. I occasionally need to cut slots about 1 inch deep through a plate and can't find a way to program these at various Z depths without programming line by line.

All I want to do is start at a predrilled hole, feed down -.250 and make an X axis cut, rapid up, go back to the predrilled hole, feed down to -.500, X axis cut, etc. until I'm at Z-1.00.

I can do circular interpolation with a canned cycle and use varying Z depths but can't find a way to do straight line cuts at varying Z depths. Am I missing something simple here?

Thanks for any info
JW

[djr76]

You can use a local subroutine


Position X Y (hole position)
position your Z
M97 P1
G00 Z (2nd depth)
M97 P1
G00 Z (3rd depth)
M97 P1
and so on
M30
N1 G1 X(slot) F.
G00 Z.1
G00 X Y (hole position)
M99