HEIDENHAIN NC 124 - Manual (Page 2)

TNC Guideline:
From workpiece drawing to
program-controlled machining
Step Task TNC operating Starting
mode on page
Preparation
1 Select tools —— ——
2 Set workpiece datum for
coordinate system —— ——
3 Determine spindle speeds
and feed rates as desired 107, 116
4 Switch on TNC and machine —— 17
5 Cross over reference marks 17
6 Clamp workpiece —— ——
7 Set datum /
Reset position display ...
7a ... with the probing functions 33
7b ... without the probing functions 31
Entering and testing part programs
8 Enter part program or
download over external
data interface 59
9 Test run: Run part program
block by block without tool 103
10 If necessary: Optimize
part program 59
Machining the workpiece
12 Insert tool and
run part program 105