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G9729 Combination Lathe/Mill
Figure 22. Bar stock mounted between centers
with lathe dog.
Lathe Dog
Figure 23. Adjusting for headstock end taper.
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6. Measure the workpiece with a micrometer.
If the stock is fat at the tailstock end, the
tailstock needs to be moved toward the
operator half the amount of the taper (Figure
23). If
the stock is thinner at the tailstock
end, the tailstock needs to be moved away
from the operator by at least half the amount
of the taper (Figure 24).
A
djust the cutter
half the distance of
the taper.
Figure 24. Adjusting for tailstock end taper.
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7. Loosen the four tailstock mounting bolts.
Adjust the tailstock offset by half the amount
of the taper by turning the adjustment set
screws (Figure 25). Turn
another .010'' off
of the stock and check for a taper. Repeat as
necessary until the desired amount of accu-
racy
is achieved.
NOTICE
DO NOT forget to lock down the tailstock
after each adjustment. Failure to follow this
notice may cause damage to the tailstock,
workpiece or both.
Figure 25. Tailstock offset adjustment screw.
Adjust the cutter
half the distance of
the taper.