Jet Tools JWL-1236 Lathe User Manual


 
Mounting the Work
Move the tailstock to approximately 1 to 1-1/2" from
the end of the work piece and lock in position. Turn
the tailstock handwheel until the center makes
contact with the work piece. Continue to turn the
hand wheel and slowly rotate the work piece by
hand. After the work piece becomes difficult to turn
by hand, reverse the handwheel approximatelyone
quarter turn and lock the tailstock spindle (Fig. 10)
Adjusting the Tool Rest
Position the tool rest approximately 1/8" away from
the work piece and 1/8" above the work centerline.
After some experience has been gained, this position
can be varied slightly to suit the operation.
Position of Hands
/-"
There is no "proper" positionfor the hands when
using chisels. Most beginners begin by usingthe
) palm-down grip (Fig. 11)for better control and switch
later to the palm-up position (Fig. 12) for better
manipulation. Inthe palm-down position, the little
finger or heel of the hand acts as a guide alongthe
tool rest. The first finger acts as a guide when using
the palm-up method.
Roughing a Cylinder
Use a large gouge and run the lathe at a slow speed
to rough-off the sharp corners of the work. Beginthe
cut 2 to 3 inches from the tailstock and work toward
and off the tailstock end. Continue by cuttingthe
next 2 to 3 inches left of the first cut, preferably
working toward the tailstock end. This method of
always working toward the tailstock is preferred
because it throws the chips clear of the operator. Do
not rough cut by taking one long pass at the work
piece and do not start cuts at either end ofthe work
piece. This has a tendency to tear long slivers from
the work piece. Rollthe gouge over slightly in the
direction of the cut for best results. Once a
cylindrical form has started to take shape, step up
the speed one or two stops.
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FIG -10
FIG -11
FIG -12