ACU-RITE CNC 3500i - Manual (Page 218)

192 7 Programming: Canned Cycles, sub-programs
7.
2 Canned Cy
cles
Islands
 This cycle allows islands in pockets. Pockets with Islands must be
programmed using sub-programs.
 More than one Island cycle can be programmed at a time. They may
be strung together, or on separate lines. Islands can be programmed
inside of islands. Five islands can be put on a line. The sub-program
number is used as inputs.
 Islands that are defined to be avoided on the inside of a pocket are
done so by using the Island code, followed by a list of up to 5
sub-program label names. If more than 5 islands need to be defined,
the Island block can be used to define as many subsequent islands
as desired in multiples of 5 up to as many as needed. Prior to calling
the irregular pocket or other compatible pocket command.
 Programmed by itself, with no additional parameters, will clear all
previous island definitions. All defined islands are also cleared after
the use of any compatible pocket cycle or finish cycle. If the islands
need to be avoided for multiple pockets and/or finish cycles, they
need to be re-defined before each desired pocket/finish cycle.
 Islands cannot overlap other actively defined islands or the pocket
contour itself, or the pocket cycle will generate an error that it
cannot calculate the tool path contour correctly.
 The islands need to be a closed contiguous line and/or arc
movements starting and ending at the same point and starting with
a Left (G41) or Right (G42) as the first line to indicate which side of
the contour the cutter needs to be, as viewed from the direction of
travel. (No ramp on or off movement is allowed. The cycle calculates
these moves on and off the islands).
 Activate a tool prior to programming so the cutter diameter is
known. Program the definitions before each pocket/finish cycle.
 G-code format: G162
Field Code Description
FirstIsl A First island (Required)
SecondIsl B Second island
ThirdIsl C Third island
FourthIsl D Fourth island
FifthIsl E Fifth island