M1036 Micro Mill
OPERATIONS
Graduated Dials
Each mark on the handwheel graduated dials (Figure 12) represents 0.001" of movement. One full rotation of the handwheel is equal to 0.050". The graduated dials can be "zeroed" by grasping the knurled section and rotating the graduated dial to "0".
Example:
To drill a series of holes with 1⁄2" centers (0.500"), drill the first hole, zero the graduated dial, move the table 0.500" (10 rotations of the handwheel) in the appropriate direction, then drill the next hole.
Backlash
When changing table direction in either axis, the handwheel will rotate a few degrees before the table begins to move and the graduated dial must be adjusted. This is backlash.
To correct for backlash, do these steps:
1.Turn the handwheel in the opposite direction of your next operation.
2.Turn the handwheel to move the table in the intend- ed direction.
3.When the lead screw catches and the table begins to move, backlash has been eliminated and the gradu- ated dial can be "zeroed."
Note: You will not need to adjust for backlash as long as the table moves in the same direction.
Graduated Dial
Figure 12. Graduated dial.
Figure 13. Headstock height adjustment.
Headstock Height
Adjusting the height of the headstock, instead of extend- ing the quill, maintains the rigidity of the mill and requires less motion when using the downfeed lever.
To adjust the headstock height, do these steps:
1.Loosen the collar (Figure 13) and lower it to the desired height.
2.Loosen the column lock knob and carefully lower the headstock until it rests on the collar spacer.
Note: Raise the headstock by reversing Steps 1 & 2.