Fagor 8055 EN, Programming Manual

Page: 239 / 482

Programming manual
CNC 8055
CNC 8055i
IRREGULAR POC
K
ET CANNED CYCLE
11.
·M· & ·EN· M
ODELS
S
OFT
: V02.2
X
·239·
2D pockets
11.1.6 Profile programming syntax
The outside profile and the inside profiles or islands which are programmed must be defined by
simple geometrical elements such as straight lines or arcs.
The first definition block (where the external profile starts) and the last (where the last profile defined
ends) must be provided with the block label number. These label numbers will indicate the beginning
and end of the profile geometry definition for the profiles that make up the pocket.
The profile programming syntax must follow these rules:
• The external profile must begin in the first definition block of the geometric description of the part
profiles. This block will be assigned a label number in order to indicate canned cycle G66 the
beginning of the geometric description.
• The part surface coordinate will be programmed in this block.
• All the internal profiles which are required may be programmed, one after the other. Each of these
must commence with a block containing the G00 function (indicating the beginning of the profile).
• Once the definition of the profiles has been completed, a label number must be assigned to the
last block programmed, in order to indicate the canned cycle G66 the end of the geometric
description.
• Profiles are described as programmed paths, it being possible to include corner rounding,
chamfers, etc., following the syntax rules defined for this purpose.
• The profile description must not contain: mirror images, scaling factor changes, pattern rotation,
zero offsets, etc.
• It must not contain high level blocks such as jumps, calls to subroutines or parametric
programming.
• It must not contain other canned cycles.
; Definition of irregular pocket canned cycle.
G66 D100 R200 F300 S400 E500
; Geometrical description.
N400 G0 G90 X300 Y50 Z3
...
N500 G2 G6 X300 Y50 I150 J0
Care must be taken to program G01, G02 or G03 in the block following the definition of the beginning,
as G00 is modal, thus preventing the CNC from interpreting the following blocks as the beginnings
of a new profile.
i
G0 G17 G90 X-350 Y0 Z50
; Definition of irregular pocket canned cycle.
G66 D100 R200 F300 S400 E500
G0 G90 X0 Y0 Z50
M30
; Defines the first profile.
N400 G0 G90 X-260 Y-190 Z4.5
--- --- --- ---
; Defines another profile.
G0 X230 Y170
G1 --- ---
--- --- --- ---
; Defines another profile.
G0 X-120 Y90
G2 --- ---
--- --- --- ---
; End of geometric description.
N500 G1 X-120 Y90