MINITECH
CNC Mini-Mill User's Guide
1.
Mount the dial test indicator in the spindle.
2.
Jog the machine so the indicator is at the end of the table and lower the Z-axis so that
the ever of the dial test indicator touches the table.
3.
3. Once the ball of the lever touches the table, make sure the needle moves at least a
few thousands. Then zero the indicator.
4.
4. Jog the X-axis to the left.
5.
As the table moves underneath the indicator note the change in height on the indicator.
6.
You will see that the table is pretty flat but not perfect.
7.
7. Move the Y-axis so that the tool is at the front of table, set the indicator then move
the Y-axis and note changes in height.
Figure 8: Measuring table flatness across x and y
Alignment
There are six degrees of freedom that need to be
accounted for in aligning the machine table. They are the
pitch, roll, and yaw. Pitch is the how perpendicular the
machine bed is along the X-axis relative to the Z-axis.
Roll is how perpendicular the machine bed is along the Y-
axis relative to the z axis. Yaw is how perpendicular the
machine bed is along the x-axis relative to the y-axis.
Adjusting the pitch and roll is possible by screw tightening
© 2012 Minitech Machinery Corp. 19
