CNC milling program with best explanation of circular interpolation

The given plate whoes thickness is 10 mm , we perform  cnc milling operatin on given plate . 

                                                                                                                                                         

HARSH .MPF /O1234
N01  G90 G71 G94 F100 ;

N02  G28 X0 Y0 Z0  ;

N03  M06 T01 D01 ;

N04  M03 S1000 ;

N05  G00 X5 Y5 Z2 ;

N06  G01 X5 Y5 Z-10 ; (Position A)

N07  G01 X70 Y5 Z-10 ;(Position B)

N08  G03 X85 Y20 Z-10 CR=15 ;(Position C)

N09  G01 X85 Y30 Z-10 ;(Position D)

N10  G03 X70 Y45 Z-10 CR=15 ;(Position E) ;

N11  G01 X65 Y45 Z-10 ; (Position F)

N12  G02 X35 Y45 Z-10 CR=15 ;(Position G)

N13  G01 X30 Y45 Z-10 ; (Position H)

N14  G01 X25 Y55 Z-10 ; (Position I)

N15  G01 X15 Y30 Z-10 ;(Position J)

N16  G01 X5  Y30 Z-10 ; (Position K)

N17  G01 X15 Y20 Z-10 ;(Position L)

N18  G01 X5  Y20 Z-10 ; (Position M)

N19  G01 X5 Y5 Z-10 ;(Position A)

N20  G75 X0 Y0 Z0 / G28 X0 Y0 Z0 ;

N21  M05 ;

N22  M09  ;

N23  M30 ;

DESCRIPTION OF MAIN PROG 

HARSH.MPF / O1234 – It is the name or number of main program which is used in sinumarik anid fanuc control cnc .

N01 –  Program in absolute co-ordinate system , metric inpu in mm( all dimension in mm) , feedrate                                                       mm/min 100.

N02 -  Tool reference/home command , where X0 ,Y0 and Z0 .

N03 – Tool change command select tool no 1 and tool offset 01 ;

N04 – Spindle on clockwise at speed 1000 rpm .

N05 – Tool take position rapidly at X5 , Y5 and Z2 .

N06 – Linearly start cutting at position A ,where X5 , Y5 and Z -10 ( Depth of cut 10 )

N07 – Tool goes linearly at position B ,  where X70 , Y5 and depth of cut Z-10 ;

N08 – Tool takes outer radius at position C ( circular interpolation clockwise), where X85, Y20 , Z-10 and radius =15 .

N09 – Tool goes linearly at position D , where X85 ,Y30 and Z-10 ;

N10 – Again tool takes outer radius at position E ( circular interpolation clockwise), where X70, Y45 , Z-10 and radius =15 .

N11 – Tool goes linearly at position F , where X65 , Y45 and depth of cut Z-10.

N12 - Tool takes internal  radius at position G ( circular interpolation counter clockwise), where X35, Y45 , Z-10 and radius =15 .(dia 30)

N13 - Tool goes linearly at position H , where X30 , Y45 and depth of cut Z-10.

N14 - Tool goes linearly at position I , where X25 , Y55 and depth of cut Z-10.

N15- Tool goes linearly at position J , where X15 , Y30 and depth of cut Z-10.

N16 - Tool goes linearly at position K , where X5 , Y30 and depth of cut Z-10.

N17 - Tool goes linearly at position L , where X15 , Y20 and depth of cut Z-10.

N18 - Tool goes linearly at position M , where X5 , Y20  and depth of cut Z-10.

N19-Tool goes linearly at position A , where X5 , Y5 and depth of cut Z-10.

N20 - Tool reference/ home command , where X0 ,Y0 and Z0 .

N21 – Spindle off .

N22 – Coolent off .

N23 – Main program end .

CNC MILLING PROGRAM video please -