Smithy Midas 1220 XL - Manual (Page 85)

Chapter 18
Milling
In milling, one or more rotating cutters shape a workpiece held by a vise or other fixture.
The cutters mount on arbors or at the end of the spindle on collets or adapters.
Machinists use mills to machine flat surfaces, both horizontal and vertical, and to make
shoulders, grooves, fillets, keyways, T-slots, and dovetails. They can also make curved
and irregular surfaces and machine accurate holes. Its variety of machining operations
and high metal-removal rates makes the mill as important a tool as the lathe.
The millhead (Figure 5.1) rotates horizontally and moves vertically. A quill that moves in
and out of the head carries the spindle.
You can move the table horizontally in two directions by turning the cross-slide and
leadscrew handwheels (Figure 5.1). The cross-slide handwheel turns the table
longitudinally (at right angles to the spindle axis); the long-feed hand crank moves it
transversely (parallel to the spindle axis).
To raise and lower the millhead, release the lock lever and put the handle into one of the
three holes in the black adjusting collar. To raise the millhead, turn it counterclockwise;
to lower it, turn it clockwise.
To rotate the millhead, release the lock lever and push the millhead to the desired
position.
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