You need to determine the offsets for the tools you are using in the tool library.
Select the tool by commanding
a tool change in MDI mode by either writing code or pressing ATC/FWD
or ATC/REV to load the first tool into the spindle.
Slowly jog the tool in the Z-Direction and stop when you get close to the
top of the stock or the vise, or wherever you have programmed the z-zero coordinate
location for your part. (CAUTION: DO NOT have the spindle
rotating while setting tool offsets!)
End Mill in the -z direction
close to the top of the vise
Switch to 0.001" or 0.0001" increment and place a slip of paper
between the tip of the tool and the surface you are setting for the z-zero. The next
step takes some eye-hand coordination and very small increments when jogging. You will
now move the tool tip in the Z-direction while constantly sliding the paper
back and forth on the face. You want to stop jogging the tip down when you just
feel the tip "grabbing" the paper.
Contact with the surface
At this point you know that the tool tip is offset from the surface
by the thickness of your
sheet of paper.
Press the OFSET button and page up or down to the tool offsets page.
Handle job button
Highlight the tool number you are setting and press the TOOL OFSET MEASURE
button. You will see a new number appear in the column "GEOMETRY".
With the number highlighted, type in " - 0.003" and hit ENTER. The
number will decrement by that amount.
Store the tool offset
This is the same thing we did when we
subtracted the radius of the edge finder. (0.003" is an approximate thickness
of a sheet of paper, but you may want to measure it to be sure).
Jog the tool in the POSITIVE z-direction away from the face to move on to
the next tool. (NOTE: If you accidentally jog in the negative z direction, you
will very quickly break the tool. If you want to avoid this DO NOT USE THE JOG
HANDLE to move the tool up. Simply push and hold the "+Z" arrow above
the JOG LOCK button and the tool will safely move up from the surface(or just
press the ATC FORWARD button while in the MDI mode. If the spindle is down it
will automatically go up to the tool change position height).
Move up in the Z direction