When the CNC lathe sets the zero point of the workpiece, it can:
△ Direct cutting with a tool:
1. Use an external turning tool to test-turn an external end face, remember the current Z coordinate, and enter the geometrical Z value of the interface.
2. First test an outer circle with an outer turning tool, remember the current X coordinate, after measuring the outer diameter, use the X coordinate to subtract the outer diameter, and enter the value in the geometry X value of the interface. △ Set the workpiece zero with G50:
- 1. First test an outer circle with an outer turning tool. After measuring the diameter of the outer circle, retract the tool along the positive direction of the Z axis and cut the end face to the center.
- 2. Select the MDI mode, input G0 X150 Z150, and make the tool move away from the workpiece for machining.
- 3. Select the MDI mode, enter G50 X0 Z0, start the START key, and set the current point to zero.
- 4. At this time the program begins: G50 X150 Z150.
- 5. Pay attention to G50 X150 Z150, your starting point and end point must be the same, that is X150 Z150, so as to ensure that the repeated processing does not mess up the knife.
- 6. If the second reference point G30 is used, it can be ensured that the repeated machining will not be disordered. At this time, the program starts with G30 U0 W0 G50 X150 Z150.
- 7. In the system, the position of the second reference point is set in the parameter. In the software, press the right mouse button to display a dialog box, and press the left mouse button to confirm.
△ Set the workpiece zero with workpiece shift:
- 1. Note that this zero point is always maintained, and it is cleared only if the offset value Z0 is newly set.
- 2. First try to cut the end face of the workpiece with an external turning tool. At this time, the position of the Z coordinate such as: Z200 is directly input into the offset value
- 3. Select “Ref” reference point approach, press X, Z axis to return to the reference point, then the workpiece zero coordinate system is established.
- 4. In the Offset of the system, there is a work shift interface where you can enter the zero offset value.
△ Set the workpiece zero with G54-G59:
- 1. First test an outer circle with an outer turning tool. After measuring the diameter of the outer circle, retract the tool along the positive direction of the Z axis and cut the end face to the center.
- 2. Input the current X and Z axis coordinates directly into G54-G59.
- 3. Note that the G53 command can be used to clear the G54-G59 workpiece coordinate system.
