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          Modal G-Codes – Learn G Code Programming

          Modal G-Codes

          A modal G-code is a G-code that remains effective in cnc program until another G-code in the same group is encountered (programmed).

          Every G code has a Group associated with it, only one G code of associated Group can be active at a time in cnc program.

          As
          G00, G01, G02, G03?? Are from Same group
          G43, G49??????????????????? Same group
          G54~G59??????????????????? Same group
          G98~G99??????????????????? Same group

          Learn G Code Programming

          Learn G Code Programming

          Modal G-Codes Example

          N10 G0 X30 Y5??????????(G0 is effective in this block)
          N20 X50 Y10????????????(No G-code specified, G0 remains effective)
          N30 G1 X30 F200????????(G1 is effective from this block, NOT G0)

          As G0, G1, G2, G3 are from same group so in above cnc program example in
          N10 G0 is active,
          although in N20 no other G-code of that group is given so G0 remains active
          but in N30 G1 is programmed so this cancels G0

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