HEIDENHAIN TNC 360 ISO Programming - Manual (Page 90)

5-7 TNC 360
5 Programming Tool Movements
Fig. 5.12: Movement in a main plane
(X/Y plane)
Fig. 5.11: Paraxial movement
Y
X
Z
100
G00 X +100
Y
X
Z
70
50
G00 X +70 Y +50
5.3 Path Functions
General information
Part program input
To create a part program you enter the dimensional information given on
the workpiece drawing. The workpiece coordinates are programmed as
absolute values (G90) or as relative values (G91).
You usually program a contour element by entering its end point. The TNC
automatically calculates the tool path from the tool data and the radius
compensation.
The first machining block after the tool call must contain the following
G functions:
Path function e.g. G00
Radius compensation e.g. G40
Absolute or incremental programming e.g. G90
Machine axis movement under program control
All machine axes programmed in a single NC block are moved
simultaneously.
Paraxial movement
Paraxial movement means that the tool path is parallel to the programmed
axis.
Number of axes programmed in the NC block: 1
Movement in the main planes
With this type of movement the tool moves to the programmed position
on a straight line or a circular arc in a "working plane".
Number of axes programmed in the NC block: 2