Sunday, October 21, 2018

Polar Coordinate G15 & G16

When any drill or tapping cycle circulating according to its radius circle, it's very difficult to find coordinate of each hole than Polar coordinate to be used. 

In Polar coordinate system the each hole automatically find its X and Y coordinate considering by given angle.


Polar Coordinate




In figure there are 6 hole are arranged in hexagonal manner from its center.

Its Pitch Circle Diameter is 100 than radius is 50.

Now the program will be...

N01 G0 G91 G28 Z0
N02 G90 G54 Y50 X0 M3 S1000
N03 Z50
N04 G98 G81 Z-15 R5 F50
N05 G16      ⇐ Polar Coordinate Start
N06 X50 Y60
N07 X50 Y120
N08 X50 Y180
N09 X50 Y240
N10 X50 Y300
N11 G15      ⇐ Polar Coordinate Off
N12 G0 G91 G28 Z0
N13 M5
N14 M30