comp-g1.ngc

(comp-g1.ngc)
(This is the program shows a G1 straight feed entry and exit move)
(with cutter radius compensation from the tool table)
(tool 4 is 1" in diameter and must be defined in the tool table)
(this file needs X-4 to X5 travel and Y-3 to Y5 travel)

G20 (set units to inches)
F60 (set feed to 60 IPM)

(first, no compensation so we can see the part outline)
G0 Z1
G0 X2 Y3
G1 Z0
G2 X3 Y2 J-1 (part outline)
G1 Y-1
G2 X2 Y-2 I-1
G1 X-3
G1 X1.4 Y2.8
G2 X2 Y3 I.6 J-.8

(with compensation)
T4 M6 (change tool)
G0 Z1
(straight line entries must not form a concave path or it is an error)
G0 X0 Y3.5 (change Y3.5 to Y4 to see the concave entry error)
G1 Z0
G41 (turn cutter comp left on)
G1 X2 Y3 (entry move)
G2 X3 Y2 J-1 (same path as above)
G1 Y-1
G2 X2 Y-2 I-1
G1 X-3
G1 X1.4 Y2.8
G2 X2 Y3 i.6 J-.8
G40 (turn cutter comp off)
G1 X3 Y3.5 (exit move can be any angle)
T0 M6 (remove tool)

M2