
B–63523EN–1/03
11. PROGRAM COMMAND
1433
The center position and outside radius of a cylinder are measured by
creating a G code program in the following format:
G183Z__R__F__W__ ;
R
Z
a
g
b
Measurement start point
Second measurement
session
First measurement
session
Stylus ball radius
Z: Height along the Z–axis
Specifies the distance from the measurement start point to the
measurement point along the Z–axis.
R: Outside radius
Specifies the nominal outside radius of a cylinder.
F: Movement speed
Specifies the speed at which the probe is to move for measurement.
W:Workpiece coordinate system
Select a workpiece coordinate system to be set up, and enter the
corresponding number listed below:
G54 to G59: 1 = G54, 2 = G55, 3 = G56, 4 = G57, 5 = G58, and
6 = G59
If 48 coordinate systems are valid, the following numbers are specified
to select desired workpiece coordinate systems:
G54.1P1 to P48: 1001 = G54P1, 1002 = G54P2, ..., 1048 =
G54P48
NOTE
Before issuing a command for this cycle, be sure to set the
probe above the approximate center of the outside–surface
cylinder.
Measurement sequence:
1) The probe moves at the speed fa in the positive X–axis direction to a
point the distance ”R + a + stylus ball radius” away from the
measurement start point.
2) The probe moves at the speed fa in the negative Z–axis direction to a
point the distance Z away from the measurement start point.
3) The probe moves at the speed f in the range ”R – g + stylus ball radius”
until it touches the measurement face.
4) The probe returns through the distance e at the rapid traverse rate.
5) The probe moves at the rapid traverse rate to the point where it was
before the start of measurement along the Z–axis.
D Measuring a cylinder
outside radius (G183)