Selca G77 Polygonal pocket

Selca G77 Polygonal pocket


G77 X... Y... [I...] [J...] [K...] [D0=...] [D1=...][D2=...] [D3=...] [D4=...] [D6=...] [D7=...] [D8=1] [D9=...]


X,Yfirst point of the pocket.
Istock allowance, removed only if a finish pass is programmed by a G79.
Jdistance between passes in tool radius units (default value J=1.6).
Kedge linking radius.
D0machining mode selection.
D0=0 from the border toward the center, with Z increments only (default).
D0=1 from the center toward the border, with Z increments only
D0=2 from the center toward the border, with increments in X, Y, Z
D0=3 defines a special use of G77 for milling profiled pockets with passes parallel to the profile
D1=pocket starting depth.
D2=pass depth.
D3=pocket bottom depth.
D4=clearance distance (default value D4=2 mm).
D6=wall taper rate (default value D6=0- vertical wall).
D7=percentage of feed rate variation during depth increment (default value D7=1).
D8=1if D0=3 is programmed, programs island milling.
D9=clearance value from pocket walls during tool repositioning at end of cycle (D9=0.5mm by default).

Note: the following blocks define the pocket profile.