
PROGRAMMING
14. FUNCTIONS TO SIMPLIFY
PROGRAMMING
B–63684EN/01
154
If an incremental command is given in a block just after the pattern
function, the tool may not move by the incremental amount from the end
point of the pattern function. In case of bolt hole circle (G26), share proofs
(G86), square (G87), radius (G88) and cut at angle (G89).
The amount of movement attained by an incremental command just after
the bolt hole circle is the commanded incremental amount from the center
of the bolt hole circle.
In case of bolt hole circle (G26) and square (G87), the incremental amount
is from the base point of pattern, namely, center and start point
respectively.
In case of share proofs (G86), radius (G88) and cut at angle (G89), the
incremental amount is from the end point of the program.
The incremental amount is all started with the end point of the pattern
function in line at angle (G76), arc (G77), and grid (G78, G79).
#1
#2
#3
å Movement of tool
#4
(End point)
Center
Not incremental amount starting
with the end point, but incremental
amount starting with the base point
(center) of pattern.
Fig.14.1.10 (a) Incremental command just after bolt hole circle (G26)
#1
#2
å Movement of tool
Start
point
#3 (End point)
Not incremental amount starting
with the base point (start point) of
pattern but incremental amount
starting with the end point.
Fig.14.1.10 (b) Incremental command just after line at angle (G76)
14.1.10
Incremental Command
Just After Pattern
Function