N240 T2020 2-End mil) N245 M01 N250 G00 G90 X-8.0Y-6.0 S800 M3 N260 G43 H2 Z.3 M

Question

N240 T2020 2-End mil) N245 M01 N250 G00 G90 X-8.0Y-6.0 S800 M3 N260 G43 H2 Z.3 MO8 N270 G01 Z-0.125 F10 N180 X2.0 N190 G03 X6.0 Y-2.0 N200 G01 Y9.0 N210 X-4.0 N215 G00 Z0.1 N220 X-8.0 Y5.0 N230 G01 Z-0.125 N240 Y-6.0 N250 G00 Z1. M09 N260 MO5 N270 G91 G49 G28 ZO. N280 M30 N290 % 2. Write a complete tool radius compensated program to profile machine the part below ignore the 0.625 R hole on left center and another small hoie on right center). The cutting parameters are: N 1200 rpm and F 10 inches/min. The diameter of the end mill is 0.5 inches. Cutting will start at point a. Then, the cutting sequence is in the order of ab >d. The part's origin is at center point O. (20 points) You need to show: (1) a coordinate table with the points in machining order (2) a full CNC program A template code is provided for your reference. You can directly write your program in the template by changing and adding whatever you think it is needed Cutting direction 0 625R 0.5R 2.625

Explanation / Answer

CNC PART PROGRAM

N0 G17

N1 G70

N2 G40

N3 G80

N4 G28 U0 V0 W0

N5 G91 Z0

N6 X0 Y0

N7 G92

N8 M06 T01

N9 G00

N10 G90 X0 Y0

N11 G43 Z0 M08 H01

N12 G00 X0 Y1.25 M03 S1200

N13 G01 Z-0.125 F10

N14 G41 X0

N15 G03 X0 Y-1.25 R1.25

N16 G01 X2.625 Y-0.75

N17 G03 X2.625 Y0.75 R0.75

N18 G01 X0 Y1.25

N19 G00 Z0

N20 G28 U0 V0 W0

N21 G91 Z0

N22 G28 U0 V0 W0

N23 G91 X0 Y0 M05

N24 G40

N25 G80

N26 G49

N27 M09

N28 M02

N29 M30

POINT X Y O 0 0 a 0 1.25 b 0 -1.25 c 2.625 -0.75 d 2.625 0.75

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