Standard turning functions
Standard turning functions are used for conventional turning work with an endlessly rotating spindle. A position-controlled interpolated CNC spindle axis must be configured as the main spindle to achieve the full scope of functions. For details see [FCT-S1].
The tool-carrying spindle axis is commanded at the assigned speed by the spindle commands M03, M04 and M05.
A longitudinal and a face turning axis must be identified by an entry in the axis parameter P-AXIS-00015. The figure above shows an example where the Z axis is marked as the longitudinal turning axis (bit 0x80) and the X axis as the face turning axis (bit 0x40).
The conventional axis configuration consists of 3 Cartesian main axes in the order X-Y-Z (1st main axis, 2nd main axis, 3rd main axis). Machining is executed in the programmed G18 plane (Z, X).
Machining can also be executed in the default G17 plane. The alternative axis configuration must then be Z-X-Y.
Standard turning functions
Function | Meaning | Unit |
G51 | Diameter programming | - |
G52 | Deselect diameter programming | - |
G41, G42 | Tool tip radius compensation, left/right | - |
G40 | Deselect tool tip compensation | - |
G95 | Feedrate per revolution | F [mm/rev] |
G33 | Thread cutting | K [mm/rev] |
G96 | Constant cutting speed | S [m/min] |
G196 | Max. speed for G96 | S [1/min] |
G94 | Default unit for path feed | F [mm/min] |
G97/ | Default unit for spindle speed | S [1/min] |
F: path feed S: spindle speed, cutting speed K: Pitch | ||
Additional information
- Diameter programming (G51/G52)
- Cutter radius compensation (G40/G41/G42)
- 2D cutter radius compensation (CRC) and 5-axis kinematics
- Feedrate per revolution (G95 / G94)
- Thread cutting with endlessly rotating spindle (G33)
- Thread cutting at actual spindle speed
- Constant cutting speed (G96/G97/G196)
- Constant cutting speed at feedrate per revolution (G96, G95)
- Tapping (G331/ G332)
- Thread drilling without compensating chuck (G63)
- Thread tapping with spindle actual positions