Write G-code program to machine the part shown in Figure 3 below using CNC milling machine with incremental programming (G91). Use the following information: feed rate 40 mm/minute, spindle speed 1200 rpm, maximum depth of cut is 5 mm, tool diameter is 8 mm. Write a comment for each line of your program.
50
B
40
E
G
20
20
15
Figure 3
(15 marks)