Table of Contents
Advertisement
Straight line L
The TNC moves the tool in a straight line from its current position
to the straight-line end point. The starting point is the end point of
the preceding block.
Enter the coordinates of the end point for the line.
Further entries, if necessary:
Radius compensation RL/RR/R0
Feed rate F
Miscellaneous function M
Example NC blocks
7
X+10 Y+40 R
F200 M3
8
IX+20 IY-15
9
X+60 IY-10
Actual position capture
You can also generate a straight-line block (L block) by using the
actual-position-capture key:
In the Manual Operation mode, move the tool to the position you
wish to capture.
Switch the screen display to Programming and Editing.
Select the program block after which you want to insert the L
block.
Press the actual-position-capture key: The TNC
generates an L block with the actual position
coordinates.
In the MOD function, you define the number of axes that
the TNC saves in an L block (see Chapter 14 "MOD
Functions, " section "Selecting the Axes for Generating L
Blocks").
Inserting a chamfer CHF between two straight lines
The chamfer enables you to cut off corners at the intersection of
two straight lines.
The blocks before and after the CHF block must be in the same
working plane.
The radius compensation before and after the chamfer block must
be the same.
An inside chamfer must be large enough to accommodate the
current tool.
Chamfer side length: Enter the length of the chamfer
Further entries, if necessary:
Feed rate F (only effective in CHF block)
Please observe the notes on the next page!
HEIDENHAIN TNC 426 B, TNC 430
www.EngineeringBooksPdf.com
Y
40
20
10
Y
X
60
X
103
Advertisement
Table of Contents
