18
Part 5 Offset Adjustment for the Y-axis and Z-axis Origin Points
X 0 Y 0
Z 0 *8000 RPM
(RML-1)
(NC-CODE)
X 0 Y 0
Z 0 *S80 OFS
X 4520 Y -3125
*Z -80 ---------
5-2. How to Adjust the Center-Z Offset
To adjust the offset, you perform actual cutting of material and evaluate the amount of misalignment.
There are no special rules about the particular cutting you should use. This section explains a simple method that lets you perform cutting
without using any software. We recommend using modeling wax or chemical wood as the workpiece with this method.
1
Install a square end mill about 6 mm in diameter, then run [Z CEN-
TER MODE]. For more information, see "3-3. Setting the Y- and
Z- axis Origin Point at the A-axis Center of Rotation."
2
Load a box-shaped workpiece, then set the A-axis origin point at a
place where the surface is level. Hold down the [JOG] key for 0.5
seconds or longer to return the [ ] and [ ] keys to Y-axis opera-
tion.
For more information, refer to "3-1. Rotating the A Axis Using
the Operation Panel" and "3-2. Setting the A-axis Origin Point."
3
Hold down the [SPINDLE] key for 0.5 seconds or longer to rotate
the spindle. Press the [JOG] key to line up the [*] with the spindle
speed, then use the dial to make the setting for about 8,000 to
10,000 rpm.
4
Move the tool to the edge of the workpiece. Use the [-Z] key and
the dial to gradually lower the tool and cut in by about 0.2 to 0.5
mm. Make a note of the Z-axis coordinate value that appears on
the display at this time. (Label this "coordinate a.")
5
Use the [ ], [ ], [
], and [
] keys to move the tool, then cut
the workpiece. Cut a sufficient range to allow use of Vernier cali-
pers or the like.