1 / 14

CNC Programming

CNC Programming. The code which controls the CNC machine. CNC Programming. NC Code Sample NC Part and Program M Codes G Code. NC Code Components. Lines of NC code contain instructions for the machine to follow. Some of the instructions prepare the machine

hillary-petty
Download Presentation

CNC Programming

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CNC Programming The code which controls the CNC machine.

  2. CNC Programming • NC Code • Sample NC Part and Program • M Codes • G Code

  3. NC Code Components • Lines of NC code contain instructions for the machine to follow. • Some of the instructions • prepare the machine • tell the machine where to send the tool • and control accessories on the machine.

  4. NC Code Components • Block Number (N) • Is the line number within the program • Preparatory Codes (G) • Prepare the machine to perform an operation • Miscellaneous Codes (M) • Perform miscellaneous functions within the program

  5. NC Code Components • Primary X Motion (X) • Instructs the machine to move the tool to this X coordinate. • Primary Y Motion (Y) • Instructs the machine to move the tool to this Y coordinate. • Primary Z Motion (Z) • Instructs the machine to move the tool to this Z coordinate.

  6. Preparatory: G-Codes • G90 - Absolute Coordinates – makes all coordinates relative to the origin • G91 – Incremental Coordinates – makes new coordinates relative to the last point. • G00 - Rapid Traverse (non-cutting move) – move the tool at the maximum rate of feed

  7. Preparatory: G-Codes • G01 - Straight Line Interpolation – move the tool in a straight line to the desired coordinates • G02 - Circular Interpolation CW – move the tool in a clockwise direction through an arc • G03 – Circular Interpolation CCW – move the tool in a counter-clockwise direction through an arc

  8. Miscellaneous: M Codes • M02 - End of Program • M03 - Spindle on [speed to follow (e.g. S3000)] • M05 - Spindle off • M08/M09 Accessory 1 on/off • M10/M11 Accessory 2 on/off

  9. PREP CODE – ABSOLUTE COORDINATES BLOCK SEQUENCE # Sample NC Program Block N00G90

  10. PREP CODE – S.L. INTERPOLATION Sample NC Program Block N01G01

  11. FEED RATE (IN/MIN) Z COORDINATE Y COORDINATE X COORDINATE Sample NC Program Block N02 X.5Y.5Z0F1

  12. SAMPLE PART ABSOLUTE COORD. A 0.5 0.5 B 0.5 1.5 C 0.875 1 D 1.25 1.5 E 1.25 0.5 F 1.75 1.5 H 1.75 0.5 I 1.75 1

  13. SAMPLE PROGRAM N00 G90 ;ABSOLUTE COORDINTAES N01 G01 ;STRAIGHT LINE INTERPOLATION N02 T1M06 ;LOAD TOOL 1 N03 M03 S3000 ;TURN SPINDLE ON TO 3000 RPM N04 G00 X.5Y.5 ;RAPID TO POINT A N05 G00 Z .1 ;RAPID TO .1 ABOVE PART N06 Z-.0625F9 ;PLUNGE AT 9 IN/MIN. N07 X.5Y1.5 ;MOVE TO B N08 X.875Y1 ;MOVE TO C N09 X1.25Y1.5 ;MOVE TO D N10 X1.25Y.5 ;MOVE TO E N11 Z.1 ;RETRACT CUTTING TOOL

  14. Sample Program Continued N12 G00 X1.75Y1.5 ;RAPID TO POINT F N13 Z-.0625F9 ;PLUNGE AT 9 IN/MIN. N14 X1.75Y.5 ;MOVE TO H N15 N16 G03 X1.75Y1.5I1.75J1 ;CCW CIRCLE INTER. ;CUT THE ARC TO X1.75Y1.5 ;WITH CIR CENTER AT X1.75Y1 N17 G01Z.1 ;RETRACT CUTTING TOOL N18 M05 ;TURN OFF SPINDLE N19 T00M06 ;UNLOAD CUTTING TOOL N20 M02 ;END OF PROGRAM

More Related