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HOW TO CALCULATE CHAMFERING II GEOMETRICAL CO-ORDINATES IN CNC II CNC PROGRAMMING BASIC

In these following figure there have four chamfers.
First chamfer dimension =5 X 450

Second chamfer dimension = 6 X 300

Third chamfer dimension = 6 X 300

Fourh chamfer dimension = 6 X 550

Given :     Ɵ1  = ?   ,    Ɵ2  = 40  ,  Ɵ3  = ?   ,  Ɵ4  = 60  ,    Ɵ5 = 78

Calculate formula :-
tan Ɵ = Opp side / Adj side

1)      for calculating opposite side of first chamfer and diameter 1

tan 45 = Opp  side / 5
:.   Ɵ1  = 40 – 10 = 30

2)      for calculating opposite side of second chamfer and diameter 3
tan 30 = opp side/ 6

Ɵ3  =  40 + 7 = 47

Geometrical co-ordinates :-

POSITION                 X- axis                             Z- axis

1                    30                        0

2                    40                       -5

3                    40                      -25

4                    47                      -31

5                    53                      -31

6                    60                      -37

7                    60                      -67

8                    78                      -73

POSITION 1 : - In position 1, tool at X= 30 but  Z= O we can see in fig

POSITION 2 : - In position 2 ,tool at X= 40 and Z= -5 ,  means it make chamfering and when cutting operation perform that time tool travel negative at Z- axis .

POSITION 3 :- In position 3, tool cutting constantly from position 2 to position 3 .

POSITION 4:-  In  position 4, X =47 and Z = -31 , means it makes chamfering  and we already calculate it .

POSITION 5:- I n position 5, X =53 and Z at same distance -31 .

POSITION 6 :- In position6 , X = 78 and Z = -73  .
HOW TO CALCULATE CHAMFERING II GEOMETRICAL CO-ORDINATES IN CNC II CNC PROGRAMING BASIC Reviewed by harshal on February 16, 2018 Rating: 5