GSK - PROBING MATERIAL

First, measure the tool length of the probe on the tool setter

When you change to the probe, please go into MDI and type this (H1 would be if your probe is tool 1):
G43 H1 

This should get the controller to read the probe length offset. Next, just the probe down to about where you want it to measure and therefore where it would hit the edge of the stock.

Look on the screen for your absolute Z corrdinate value. Put this into your: MEAS-PONT COR. Z
See how in my example it is -202.800mm?

For the probing inputs of the other axis,
Measure your block size (shown here in sharpy marker)
Next, you would input your values as shown below (but matching your box size and the absolute location values of your machine.
So for instance, 
measure mode: 1 
workpiece type: 2 (for doing a block and finding center) 
G54
tool 1 (if your probe is currently in tool 1 slot
Cx: the location of your absolute coords in X axis as started to the right of this option (when your part is right under your spindle - in the middle of the part)
Cy: the location of your absolute coords in Y axis as started to the right of this option (when your part is right under your spindle - in the middle of the part) 
meas-pont coor Z: this was the value on the Z absolute coords when you had jogged down the probe and had it at the spot deep enough into the part that it would hit the side of the part rather than just float above it
radial cle: how far out the probe will move from the "target dimensions" of the block
probe exceed: how far the probe goes before it will trigger the skip signal (actuated the probe signal)
target dim X: the X dimensions of the block
target dim Y: the Y dimensions of the block 

*all of the screen shot above is in mm*

If you do this, please proceed very carefully. Have all rapids on slow and feed on slow. If you see the probe colliding with the stock and it isn't stopping, feed hold the machine. You don't want to break a probe tip.

The probe should be following the red outline path in my INCREDIBLE drawing below.
When it gets down near the center portion of the block, it should then be moving out to be over the sides of the block, to which it then goes down more in Z axis. Then movement towards the block happens again and when the probe tip makes contact, it stop movement.
A little trick is to use a big sponge. If the probe crashes into the sponge, the sponge won't snap the probe tip off.