HEIDENHAIN PT 855 for Milling - Manual (Page 32)

I - 2 Working with POSITIP – First Steps
30 Operating Instructions POSITIP 855
Y
X
1 2
3 4
60 30
20
50
0
0
Displaying and moving to positions
Example: Milling a shoulder by traversing to display value zero
The coordinates are entered as absolute dimensions; the datum is
the workpiece zero point.
Corner
X = 0 mm Y = 20 mm
Corner X = 30 mm Y = 20 mm
Corner X = 30 mm Y = 50 mm
Corner X = 60 mm Y = 50 mm
Preparation:
ä Enter the tool data.
ä Pre-position the tool to an appropriate location
(such as X = Y = –20 mm).
ä Move the tool to milling depth.
Operating mode:
DISTANCE-TO-GO
Select the Y axis.
3
1
2
4
ENT
Transfer the nominal position value.
The graphic positioning aid for the Y axis appears.
Traverse the Y axis until the display value is zero.
The square in the graphic positioning aid is now centered
between the two triangular marks.
Select the X axis.
Traverse the X axis until the display value is zero.
The square in the graphic positioning aid is now centered
between the two triangular marks.
0 3
N o m i n a l p o s i t i o n v a l u e ?
ENT
Transfer the nominal position value.
The graphic positioning aid for the X axis appears.
Enter nominal position value for corner point : X = +30 mm
and
select tool radius compensation R –.
0
N o m i n a l p o s i t i o n v a l u e ?
Enter nominal position value for corner point : Y = +20 mm
and
select tool radius compensation R +.
2
2
1