G12 CIRCULAR POCKET MILLING
CNC PROGRAMMING G12 Circular Pocket Milling CW / G13 Circular Pocket Milling CCW (Group 00) These G-codes mill circular shapes. They are different only in that G12 uses a clockwise direction and G13 uses a counterclockwise direction. Both G-codes use the default XY circular plane ( G17 ) and imply the use of G42 (cutter compensation) for G12 and G41 for G13 . G12 and G13 are non-modal. * D - Tool radius or diameter selection** F - Feedrate I - Radius of first circle (or finish if no K ). I value must be greater than Tool Radius, but less than K value. * K - Radius of finished circle (if specified) * L - Loop count for repeating deeper cuts * Q - Radius increment, or stepover (must be used with K) Z - Depth of cut or increment *indicates optional **To get the programmed c...