HEIDENHAIN TNC 320 - Example: Roughing and Finishing Superimposed Contours with the Contour Formula

SL cycles with complex contour formula 9.1
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HEIDENHAIN | TNC 320 | User’s manual for cycle programming | 9/2016
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Example: Roughing and finishing superimposed
contours with the contour formula
0 BEGIN PGM CONTOUR MM
1 BLK FORM 0.1 Z X+0 Y+0 Z-40
Definition of workpiece blank
2 BLK FORM 0.2 X+100 Y+100 Z+0
3 TOOL DEF 1 L+0 R+2.5
Tool definition of roughing cutter
4 TOOL DEF 2 L+0 R+3
Tool definition of finishing cutter
5 TOOL CALL 1 Z S2500
Tool call of roughing cutter
6 L Z+250 R0 FMAX
Retract the tool
7 SEL CONTOUR “MODEL“
Specify contour definition program
8 CYCL DEF 20 CONTOUR DATA
Define general machining parameters
Q1=-20 ;MILLING DEPTH
Q2=1 ;TOOL PATH OVERLAP
Q3=+0.5 ;ALLOWANCE FOR SIDE
Q4=+0.5 ;ALLOWANCE FOR FLOOR
Q5=+0 ;SURFACE COORDINATE
Q6=2 ;SET-UP CLEARANCE
Q7=+100 ;CLEARANCE HEIGHT
Q8=0.1 ;ROUNDING RADIUS
Q9=-1 ;ROTATIONAL DIRECTION