Hey guy's
 
I am running in to a problem drilling an angled hole on a 5 axis
machining center running a Fanuc control.
 
The machine acts like it is losing the tool length off set when
the program tells the machine to rotate the axis 90 along with a head tip.
 
The machine runs fine if the rotation on the G68 line is around "I" axis
and not "J" axis.
 
The trouble is with the following program if I set the "I" as the rotation axis
the tool length is read perfectly no problem BUT when the drill retracts
out in a canned cycle it pulls straight up in "Z" and not like it should in "X" and "Z" combined
direction resulting in a broken drill.
 
If I put the axis rotation on the "J" axis the retract looks good but the tool length off
set is ALL screwed up.
 
The "X" "Y" & "Z" on the  G68 line is the distance from world or the G54 point
to the workplane setting for the angled holes.
 
Example:
 
( T15 )
( 10MM HSS DRILL )
N43 G54 X36.1982 Y0.0
N44 T15
N45 G43.1 Z10.
N46 S700
N47 M03
N48 G53 Z0
N49 G90 G00 B15.0  C180.0
N50 G68 X0.0 Y12.331 Z-0.0947 I0 J1 K0 R-15.0
N51 Z4.0
N52 G98 G83 X36.1982 Y0.0 Z-8.045 R0.1 Q0.1 F3.0 M08
N53 Y-1.2656 Z-7.405
N54 G80 M09
N55 G00 Z4.
N56 G53 Z0
 
 
Any help or example programs would be help full.
Even without a G68 call out line.
 
Clueless in Wisconsin
 
Brock

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