Specifications

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CONCISE GUIDE FANUC 57
4.3 “G73” PROFILE REPETITION
The “G73” function activates the profile repetition cycle.
With this function the defined profile can be repeated several times, moving it each time by a certain
distance. This cycle is most useful to work on workpieces coming from stamping, casting or a previous
rough machining.
The profile repetition cycle is always composed of two program blocks.
Example:
N17 …….
N18 G0 X.. Z.. .
N19 G73 U… W… R…
N20 G73 P… Q… U… W… F…
N21 G0/G1 X… Z…
N22 …
N23 … description of finished profile
N24 …
Where:
• X => Start cycle co-ordinate along axis X
• Z => Start cycle co-ordinate along axis Z
1
st
BLOCK OF G73
• U => material to remove on x axe, radial value expressed with sign, (difference between
rough and worked)
• W => material to remove on z axe, value expressed with sign, (difference between
rough and worked)
• R => Number of profile repetitions
2
nd
BLOCK OF G73
• P => Number of block where the rough machining profile starts
• Q => Number of block where the rough machining profile finishes
• U => Diametrical machining allowance on axis X , value with sign
W => Machining allowance on axis Z, value with sign
• F => Work feed