Although this example drawing looks a bit complex, but it is very easy to program. Before going through this exercise you must fist read circular interpolation articles
Circular Interpolation Concepts & Programming articles
- Circular Interpolation Concepts & Programming Part 1 (Concepts)
- Circular Interpolation Concepts & Programming Part 2 (Use of R)
- Circular Interpolation Concepts & Programming Part 3 (Use of I J K)
- Circular Interpolation Concepts & Programming Part 4 (Unknown R)
- Circular Interpolation Concepts & Programming Part 5 (Examples)
- Circular Interpolation Concepts & Programming Part 6 (Uses & Exercises)
and exercise no. 1
After reading that you will be comfortable to understand this program example. it is very simple and basic work.
Circular Interpolation Programming Example 2
Circular Interpolation Programming Example 2
N5 G00 G54 G64 G90 G17 X-20 Y-20 Z50 N10 S450 M03 F250 D01 (12.5 MM DIA) N15 C0 N20 Z5 N25 G01 Z0 N30 Z-5 N35 G42 X0 Y0 M08 N40 X80 Y0 N45 X60 Y30 U10 N50 X80 Y50 N55 X50 Y50 N60 G02 X30 Y30 U20 N65 G01 X10 Y30 U8 N70 X0 Y0 N75 G40 X-20 Y-20 N80 G00 Z50 M09 N85 Y100 N90 M30
Finished Part
After completing the machining process, your job will look like this.
Completed Part
Explanation of CNC G-Code
G00 : Rapid traverse.
G54 : Zero Offset no. 1.
G64 : Continuous-path mode.
G90 : Absolute dimensioning system.
G17 : X-Y plan selection.
G42 : Cutter radius compensation activation (right hand side movement)
G40 : Cutter radius compensation de-active
G02 : Circular Interpolation clockwise
G03 : Circular Interpolation anti-clockwise (counter clockwise)
S : Spindle speed
F : Axis motion feed
M : Cutter motion (3=clockwise, 4=anti-clockwise)
D : Tool no
M08 : Coolant on
M09 : Coolant off
M30 : End of main program
