HEIDENHAIN TNC 128 (77184x-02) - Manual (Page 168)

Programming: Tool movements
6.1 Fundamentals
6
168
TNC 128 | User's Manual HEIDENHAIN Conversational Programming | 5/2014
6.1 Fundamentals
Tool movements in the program
The orange axis keys initiate the plain-language dialog for a paraxial
positioning block. The TNC asks you successively for all the
necessary information and inserts the program block into the part
program.
Coordinates of the end point of the movement
Radius compensation R+/R-/R0
Feed rate F
Miscellaneous function M
Example NC block
6 X+45 R+ F200 M3
You always program the direction of tool movement. Depending
on the individual machine tool, the part program is executed by
movement of either the tool or the machine table on which the
workpiece is clamped.
Danger of collision!
Before running a part program, always pre-position
the tool to prevent the possibility of damaging it or
the workpiece.
Radius compensation
The TNC can compensate the tool radius automatically. In paraxial
positioning blocks you can select whether the TNC is to extend (R
+) or shorten (R–) the traverse path by the value of the tool radius
(see "Tool radius compensation with paraxial positioning blocks",
page 164).
Miscellaneous functions M
With the TNC's miscellaneous functions you can affect
the program run, e.g., a program interruption
the machine functions, such as switching spindle rotation and
coolant supply on and off