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ACU-RITE 3500i 433
11.5 Four Axis Programming
Example 2: Mill
Mount the fourth axis as described above. Mount a part 3” in
diameter and 5” long on the face of the rotary table. The part has a
0.25” radius turned on the end. Shortest Distance is set to off.
Assume that a series of six 0.25” wide grooves must be milled 60°
apart, 0.25” deep at the start, tapering up to 0.125” deep and
rotating 15° at the far end. The groove must follow the end contour
of the part (radius). Set X0 at the right end, Y0 at the cylinder center
line, U0 at a pre-milled keyway on the cylinder. Set the tool offset so
that the center line of the 0.25” ball-end mill is at the center line of
the 3” diameter part (with Y axis at 0).
* 4-AX-MILL
* SET Shortest Distance TO "off"
G90 G70 G0 M5
G28 Z0
G53 O1
G0 X0 Y0 U0
T1 *.25 BALL-END-MILL
S2400
M3
M98 P1 L6
G90 G0 M5
G28 Z0
G0 X0 Y0 U0
M2
O1 * GROOVE
G90 G0 X.225
G0 Z2.625
G1 X.125 F5
G18 G91 G2 X-.25 Z.25 I-.25 K0 U-2.
G17 G1 X-3.25 Z.125 U-13
G90 G0 Z3.225
G0 X.225
G91 G0 U-45
M99