
2000/02/08 H. Minami
A-78392EN
FANUC Series 16i/18i/21i-MA
Embedded macro for measurement
Title
Drawing No.
Page
Descri
tionDateEdit
6/36
Movements
:
1. The probe goes down within the distance (Z +
γ
) with the feed-rate (f) until touching the
machine table.
→
First measurement
2. Return the distance (
β
) with a rapid traverse.
3. Going down within the distance (
β
+
γ
) with the feed-rate (F) until touching the machine
table.
→
Second measurement
When
G170
is executed, the system will calculate the length of the probe from
measurement position and output it to the following variable.
#200
: Probe Length
3-2. Stylus ball diameter calibration (G171)
This is a menu for calibrating the diameter of a stylus ball for X axis and Y axis.
Create ISO code program in the following form.
G171 Z R F ;
Z
: Distance for movement
Input the distance from the measuring start point to the ring gauge.
R
: Ring gauge radius
Input the radius of the ring gauge.
F
: Feed rate for movement
α
R
1
st
Measure
Ring gauge
Z
Probe
Measuring
start point
β
γ
Ring gauge
2
nd
Measure