Programming Contours | Path contours – Polar coordinates
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HEIDENHAIN | TNC 320 | ISO Programming User's Manual | 10/2017
Example: Helix
%HELIX G71 *
N10 G30 G17 X+0 Y+0 Z-20*
Definition of workpiece blank
N20 G31 G90 X+100 Y+100 Z+0*
N30 T1 G17 S1400*
Tool call
N40 G00 G40 G90 Z+250*
Retract the tool
N50 X+50 Y+50*
Pre-position the tool
N60 G29*
Transfer the last programmed position as the pole
N70 G01 Z-12,75 F1000 M3*
Move to working depth
N80 G11 G41 R+32 H+180 F250*
Approach first contour point
N90 G26 R2*
Connection
N100 G13 G91 H+3240 Z+13,5 F200*
Helical traverse
N110 G27 R2 F500*
Tangential exit
N120 G01 G40 G90 X+50 Y+50 F1000*
Retract the tool, end program
N130 G00 Z+250 M2*
N99999999 %HELIX G71 *
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