Drilling a Two Step Block with G81 Drilling Cycle

G81 drilling cycle program example which shows how a step block can be drilled economically.
The cnc program code is self explanatory, no complex technique is used.

G81 Drilling Two Step Block

G81 Drilling Two Step Block

G81 Drilling Two Step Block

N10 T4 M6   (TWIST DRILL 8”)
N15 G90 G54 G00 X15 Y15
N20 S1000 M3 F100
N25 G43 H01 Z2 M8
N30 G81 R2 Z-42
N35 X65
N40 Y85 R-13
N45 X15
N50 G80 Z50 M5
N55 M30