M1109 Combo Lathe/Mill

OPERATIONS

Cutting Shallow Tapers

with the Tailstock

To setup the tailstock to cut tapers, do these steps:

1.Lock the tailstock in position.

2.Alternately loosen and tighten the left and right offset adjustment screws until the desired offset is indicated on the scale (see Figures 25 & 26).

3.Retighten the lock screw.

Note: To return the tailstock back to the original position, repeat the process until the centered posi- tion is indicated on the scale.

Tailstock Alignment

The tailstock is aligned at the factory with the headstock. We recommend that you take the time to ensure that the tailstock is aligned to your own desired tolerances.

To align the tailstock, do these steps:

1.Using a precision level on the bedways, make sure the lathe/mill is level side-to-side and front-to-back. If the lathe/mill is not level, correct this condition before proceeding.

2.Get two pieces of steel round stock, two inches in diameter and six inches long.

3.Center drill both ends of one piece of the round stock. Set it aside for use in Step 6.

4.Using the other piece of stock, make a dead center by turning a shoulder to make a shank. Flip the piece over in the chuck and turn a 60º point (see Figure 27).

Note: As long as the dead center remains in the chuck, the point of your center will remain true to the spindle axis. Keep in mind that the point will have to be refinished whenever it is removed and returned to the chuck.

Right

Offset

Adjustment

Scale

Figure 25. Right offset adjustment.

Left Offset

Adjustments

Figure 26. Left offset adjustment.

Figure 27. Tailstock centering dead

center.

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Woodstock M1109 Cutting Shallow Tapers With the Tailstock, Tailstock Alignment, To align the tailstock, do these steps