HEIDENHAIN PT 855 for Milling - Manual (Page 27)

I - 2 Working with POSITIP – First Steps
POSITIP 855 Operating Instructions 25
Example: Probe the circumference of a hole with an edge finder
and set the center of the hole as a datum
Main plane X / Y
Edge finder axis parallel to the Z axis
X coordinate of the
circle center X = 50 mm
Y coordinate of the
circle center Y = 0 mm
Y
X
0
1
2
3 4
X?
Probing functions for datum setting
Select Circle Center
.
Operating mode:
ACTUAL VALUE
Select Probe
.
Retract edge finder from bore hole wall.
Move edge finder towards first point on the circumference until the LEDs
on the edge finder light up.
Select plane containing the circle (main plane):
Plane X/Y
.
P r o b e 1 s t p o i n t i n X / Y
0 5
ENT
Enter the first coordinate (X = 50 mm)
and
transfer coordinate as datum for the circle center.
ENT
Accept default entry Y = 0 mm.
E n t e r c e n t e r p o i n t X
X = 0
E n t e r c e n t e r p o i n t Y
Y = 0
1
Probe three additional points on the circumference in the same manner.
Further instructions appear on the screen.