Example: Helix - HEIDENHAIN TNC 620 User Manual

6
Programming contours
6.5 Path contours – Polar coordinates

Example: Helix

%HELIX G71 *
N10 G30 G17 X+0 Y+0 Z-20*
N20 G31 G90 X+100 Y+100 Z+0*
N30 T1 G17 S1400*
N40 G00 G40 G90 Z+250*
N50 X+50 Y+50*
N60 G29*
N70 G01 Z-12,75 F1000 M3*
N80 G11 G41 R+32 H+180 F250*
N90 G26 R2*
N100 G13 G91 H+3240 Z+13,5 F200*
N110 G27 R2 F500*
N120 G01 G40 G90 X+50 Y+50 F1000*
N130 G00 Z+250 M2*
N99999999 %HELIX G71 *
270
Definition of workpiece blank
Tool call
Retract the tool
Pre-position the tool
Transfer the last programmed position as the pole
Move to working depth
Approach first contour point
Connection
Helical traverse
Tangential exit
Retract the tool, end program
HEIDENHAIN | TNC 620 | ISO Programming User's Manual | 9/2016