HEIDENHAIN iTNC 530 (340 422) ISO programming - Manual (Page 360)

360 8 Programming: Cycles
8
.7 SL Cy
cles G
roup II
Example: Cylinder surface with Cycle G128
Notes:
n Cylinder centered on rotary table
n Datum at center of rotary table
n Description of the midpoint path in the
contour subprogram
%C28 G71 *
N10 G99 T1 L+0 R+3.5 * Define the tool
N20 T1 G18 S2000 * Call tool, tool axis is Y
N30 G00 G40 G90 Y+250 * Retract the tool
N40 G37 P01 1 * Define contour subprogram
N50 X+0 * Position tool on rotary table center
N60 G128 CYLINDER SURFACE Define machining parameters
Q1=-7 ;MILLING DEPTH
Q3=+0 ;ALLOWANCE FOR SIDE
Q6=2 ;SET-UP CLEARANCE
Q10=-4 ;PLUNGING DEPTH
Q11=100 ;FEED RATE FOR PLNGNG
Q12=250 ;FEED RATE FOR MILLING
Q16=25 ;RADIUS
Q17=1 ;DIMENSION TYPE
Q20=10 ;SLOT WIDTH
N70 C+0 M3 * Pre-position rotary table
N80 G79 * Call the cycle
N90 G00 G40 Y+250 M2 * Retract in the tool axis, end program
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