
B–63523EN–1/03
11. PROGRAM COMMAND
1425
Z: Movement distance
Specifies the distance from the measurement start point to the ring
gage.
D: Gage line–to–table distance
Specifies the distance from the gage line to the table.
H: Ring gage height
Specifies the height of the ring gage.
F: Movement speed
Specifies the speed at which the prove is to move for measurement.
Measurement sequence:
What is done during measurement is described below.
1) The probe moves at the speed f in the range ”Z + g” from the
measurement start point until it touches the table (the first
measurement session).
2) The probe returns through the distance b at the rapid traverse rate.
3) The probe moves at the specified speed F in the range ”b + g” until it
touches the table (the second measurement session).
Executing G170 obtains the length of the probe from a measured value
and outputs the obtained probe length in the following macro variable:
#200: Probe length
The stylus ball diameters in both X–axis and Y–axis directions are
measured by creating a G code program in the following format:
G171Z__R__F__ ;
R
Z
ag
b
Probe
Measurement start
point
Ring gage
First session
Ring gage
Second session
Z: Movement distance
Specifies the distance from the measurement start point to the ring
gage.
R: Ring gage radius
Specifies the height of the ring gage.
F: Movement speed
Specifies the speed at which the probe is to move for measurement.
Measurement sequence:
What is done during measurement is described below.
1) The probe moves at the speed fa through the distance Z in the negative
Z–axis direction.
D Stylus ball diameter
measurement (G171)