Programming manual
CNC 8055
CNC 8055i
IRREGULAR POCKET CANNED CYCLE
11.
·M· & ·EN· MODELS
SOFT: V02.2X
·253·
3D pockets
11.2.2 Semi-finishing operation
This operation is optional.
It will be programmed in a block which will need to bear a label number in order to indicate to the
canned cycle the block where the roughing operation is defined.
The function for the semi-finishing operation is G67 and it cannot be executed independently from
the G66.
Both the roughing and the semi-finishing operations are defined with G67; but, in different blocks.
It is function G66 who indicates which is which by means of parameters "R" and "C".
Their programming formats are:
G67 B I R V F S T D M
[ B±5.5 ] Pass depth
Defines the machining step along the longitudinal axis (semi-finishing pass). It must be programmed
and with a value other than "0". Otherwise, the semi-finishing operation will be canceled.
• If programmed with a positive sign, the whole semi-finish operation will be carried out with the
same machining pass and the canned cycle will calculate a pass equal or smaller than the one
programmed.
• If programmed with a negative sign, the whole semi-finish operation will be run with the
programmed pass. The canned cycle will adjust the last pass to obtain the total programmed
depth.
[ I±5.5 ] Pocket depth
Defines the total depth of the pocket and is programmed in absolute coordinates.
If there is a roughing operation and it is not programmed, the CNC takes the value defined for the
roughing operation.
If there is no roughing operation, it must be programmed.
[ R±5.5 ] Reference plane
Defines the reference plane coordinate and is programmed in absolute coordinates.
If there is a roughing operation and it is not programmed, the CNC takes the value defined for the
roughing operation.
If there is no roughing operation, it must be programmed.
[ V5.5 ] Penetration feedrate
Defines the tool penetrating feedrate.
If not programmed or programmed with a 0 value, it assumes 50% of the feedrate in the plane (F).
[ F5.5 ] Machining feedrate
Optional. It sets the machining feedrate in the plane.
; Definition of irregular pocket canned cycle.
G66 R100 C200 F300 S400 E500
; Definition of the semi-finish operation.
N200 G67...
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