Dudes,
Didja know you can specify coord shifts within a drill cycle? Yes indeedy.
There's only one pro'leng: Upon specifying G52, it seems that the cycle wants to drill the last hole twice, before making the coordinate shift.
Examples from my overly-complicated vise jaw program (which takes me longer to figger out how to use it each time, than it does to make the fukn jaws):
This is for the kurt vise, whose holes are 3.875 c-c, but two of them, for those long jaws I was posting about.
N49M6T2( 1/2 DRILL, STUBBY
N50L101( various coordinates'n's*it, incl. data for making the holes ovals
N51#R1=V10/2' X ( actually 3.875/2
N52#R8=8.5( actually 17" between sets of holes: E1 is at geo center
N53G52X-R8Y0( for the left hand vise holes
N54G0X+R1Y0Z2.H2E1
N55M3S1500( I just lernt to sep this out from Line 54, from someone's sample code post, as it's now easy to slash out, for dry runs without the spindle -- saves effing air, yo.
N56Z1.
N57Z0.1
N58G83G98R+0.1Z-1.2F12.1Q0.5L0( usually put L0
N59L301( executes the first pair of holes, lh vise
N60G52X+R8Y0( coord shift for second pair of holes
N61L301( second pair of holes, rh vise
N62G80
---------------
OK, fine'n'dandy, except Line 60 causes one hole to be drilled twice. At least on fadal CS-88 controls.
How to fix?
Another L0 on line N60!!!!! To wit:
N58G83 ... . . . . . . . . . . . L0 N59L301 N60G52X+R8Y0L0 N61L301 N62G80
Muthafucka!!! Voila!
For cadcamless assholes, coordinate shifts within a cycle argerment can make things pretty convenient, saves some code, etc. Now it's nice not to have holes drilled goddamm twice.