System information

SECTION FOUR - PREPARATORY FUNCTIONS (G CODES)
Starting and Ending Cutter Compensation
G41 Tool Left
D1 = Tool Radius (Previously Set in D1)
PIERCE
RETRACT
1=point on part before pierce point 1=last position before retract
2=pierce point 2=tool retract position
3=first cut move 3=point after retract
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