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CNC Programming Basics Guide
- 2. CNC Program Numbers Program Numbers O 6999 . . . O 0256 O 0255 . . . O 0000
- 6. Absolute Value Programming P0 N… … P0 P1 N… G01 X40. Z25. F… P1 P2 N… G01 X60. Z-40. F… P2 N… … Absolute coordinate system Example:
- 7. Incremental Value Programming Incremental coordinate system Example: P0 N… … P0 P1 N… G01 U5. W-25. F… P1 P2 N… G01 X10. Z-15. F… P2 N… …
- 8. Mixed Programming Mixed coordinate system Example: P0 N… … P0 P1 N… G01 U5. W-25. F… P1 P2 N… G01 X60. Z-15. F… P2 N… …
- 10. Self-holding Functions (2) Take-over of G00 commands in block N0110 In block N0120 G00 is deactivated by G01. G01 is active. N0050 M03 N0060 … … N0120 M04 Example 1: Example 2: M03 activated at N0050 and effective from N0050 through N120. M03 deactivated at N0120 by M04 command N0100 G00 X50. Z+10. N0110 X36. Z+2. N0120 G01 X40. Z-10. F…
- 11. Reference Points M = Machine zero point. (unchangeable ref. Point determined by machine manufacturer) N = Tool mounting reference point W = Work piece zero point. (can be freely determined by the programmer and can be moved within program
- 12. Work piece (1)
- 13. Work piece (2)
- 14. G & M Commands G00: Rapid traverse G01: Linear interpolation G02: Circular interpolation clockwise G03: Circular interpolation counter clockwise G70: Measuring in Inch (USA) G71: Measuring in mm (Other countries) M03: Spindle ON clockwise M04: Spindle ON counter clockwise M20: Tailstock back M21: Tailstock forward
- 15. G 00, Rapid Traverse Absolute dimensions of the target point coordinates: N030 G90 N040 G00 X48 Z-26 An absolute X coordinate related to the diameter. Incremental dimensions of the target point coordinates: N030 G91 N040 G00 X-10,5 Z-31 Tool position X69 Z5
- 16. G 01, Linear Interpolation P0: tool position G90: N030 G00 X39 Z2 N040 G01 X39 Z0 N050 G90 N060 G01 X48 Z-37 G91: N030 G00 X39 Z2 N040 G01 X39 Z0 N050 G91 N060 G01 X4.5 Z-37 G01 X… Z…
- 17. G 90 & G91 Commands G90 G01 X+140 Z-90 Target point abs. G91 G01 X+40 Z-60 Target point incr. PO: Start Point P1: Target Point
Notas del editor
- Computer Numeric Control @ UPH By Jonny Latuny, M.Eng © August 2002
- Computer Numeric Control @ UPH By Jonny Latuny, M.Eng © August 2002
- Computer Numeric Control @ UPH By Jonny Latuny, M.Eng © August 2002
- Computer Numeric Control @ UPH By Jonny Latuny, M.Eng © August 2002
- Computer Numeric Control @ UPH By Jonny Latuny, M.Eng © August 2002
- Computer Numeric Control @ UPH By Jonny Latuny, M.Eng © August 2002
- Computer Numeric Control @ UPH By Jonny Latuny, M.Eng © August 2002
- Computer Numeric Control @ UPH By Jonny Latuny, M.Eng © August 2002
- Computer Numeric Control @ UPH By Jonny Latuny, M.Eng © August 2002
- Computer Numeric Control @ UPH By Jonny Latuny, M.Eng © August 2002
- Computer Numeric Control @ UPH By Jonny Latuny, M.Eng © August 2002
- Computer Numeric Control @ UPH By Jonny Latuny, M.Eng © August 2002
- Computer Numeric Control @ UPH By Jonny Latuny, M.Eng © August 2002
- Computer Numeric Control @ UPH By Jonny Latuny, M.Eng © August 2002
- Computer Numeric Control @ UPH By Jonny Latuny, M.Eng © August 2002
- Computer Numeric Control @ UPH By Jonny Latuny, M.Eng © August 2002
- Computer Numeric Control @ UPH By Jonny Latuny, M.Eng © August 2002