0  BEGIN PGM 7055-EN MM 
1  ;Program for outside machining of a
2  ;cylindrical surface with an end mill.
3  ;The cylinder axis is parallel to the Y-axis.
4  ;Machining is done in a circular path around
5  ;a center point in X- and Z-axis, and the
6  ;stepover is made in the Y-axis. The motion
7  ;on both sides is from bottom to top. The
8  ;pitch indicates in how many paths each side
9  ;is divided. The control calculates how great
10 ;the stepover must be. At the beginning the
11 ;tool is positioned with a correction of its
12 ;radius and at the end the last motion is
13 ;done at the defined position added up with
14 ;the radius.
15 ;
16 BLK FORM 0.1 Z X-55 Y+0 Z-55
17 BLK FORM 0.2  X+55  Y+100  Z+0
18 ;
19 ;Input parameter
20 FN 0: Q1 =+0 ;CYLINDER CENTER IN THE X-AXIS
21 FN 0: Q2 =-50.1 ;CYLINDER CENTER IN THE Z-AXIS
22 FN 0: Q3 =+0 ;STARTING POINT IN THE Y-AXIS
23 ;            ;MINIMUM COORDINATE
24 FN 0: Q4 =+100 ;END POINT IN THE Y-AXIS
25 ;            ;MAXIMUM COORDINATE
26 FN 0: Q5 =+50 ;PITCH
27 ;            ;NUMBER OF MOTIONS EACH SIDE
28 FN 0: Q6 =+50 ;CYLINDER RADIUS
29 FN 0: Q7 =+10 ;SAFETY HIGHT
30 FN 0: Q8 =+600 ;FEED RATE FOR MILLING
31 FN 0: Q9 =+300 ;FEED RATE FOR PLUNGING
32 ;Input parameter completed
33 ;
34 ;Tool call end mill
35 TOOL CALL 8 Z S8000
36 ;
37 ;
38 ;Calculations
39 FN 1: Q10 =+Q1 + +Q108 ;Circle center in X for the first side
40 FN 2: Q11 =+Q1 - +Q108 ;Circle center in X for the second side
41 FN 2: Q13 =+Q3 - +Q108 ;Starting point
42 FN 1: Q14 =+Q4 + +Q108 ;End point
43 FN 2: Q15 =+Q14 - +Q13 ;Track
44 FN 4: Q16 =+Q15 DIV +Q5 ;Stepover
45 FN 2: Q17 =+Q5 - +1 ;Number of repetitions
46 FN 1: Q18 =+Q6 + +Q108 ;Pre-positioning
47 FN 1: Q19 =+Q1 + +Q18 ;Pre-positioning first side
48 FN 2: Q20 =+Q1 - +Q18 ;Pre-positioning second side
49 ;Calculations completed
50 ;
51 L  Z+100 R0 FMAX ;Move to a safe position
52 ;
53 ;First side
54 L  X+Q19  Y+Q13 R0 FMAX M3 ;Pre-positioning
55 L  Z+Q7 R0 FMAX ;Move to the safety hight
56 CC  X+Q10  Z+Q2 ;Center of circular path
57 LBL 1
58 L  X+Q19 R0 FMAX
59 LP  PR+Q6  PA+90 FQ9 ;Infeed
60 L IY+Q16 R0 FQ8 ;Stepover
61 CP IPA-90 DR- FQ8 ;Circular path
62 L  Z+Q7 R0 FMAX ;Move to the safety hight
63 CALL LBL 1 REPQ17 ;Repetitions
64 ;
65 ;Second side
66 L  X+Q20  Y+Q14 R0 FMAX ;Pre-positioning
67 CC  X+Q11  Z+Q2 ;Center of the circular path
68 LBL 2
69 L  X+Q20 R0 FMAX
70 LP  PR+Q6  PA-90 FQ9 ;Infeed
71 L IY-Q16 R0 FQ8 ;Stepover
72 CP IPA+90 DR+ FQ8 ;Circular path
73 L  Z+Q7 R0 FMAX ;FMove to the safety hight
74 CALL LBL 2 REPQ17 ;Repetitions
75 ;
76 ;Move back and end of program
77 L  Z+100 R0 FMAX M30
78 END PGM 7055-EN MM