vise. The handle is then fitted into the head. A snug fit is necessary.
If one side "hangs" or is lower than the other the centers are moved
sufficiently to correct it. The head is then turned to exact size and
finished.


A-II--7. Vise Handles.

Turn the spindle with the solid head to dimensions. Bore a hole through
a 1-1/4" square block and fit the block snugly to the end of the
spindle. Turn this block to the same dimensions as the other head. This
method will save chucking the second head and is much quicker.




CHAPTER VI

OVAL TURNING


Oval work as a problem in turning will be found to be a very good one as
well as interesting to the pupil. It brings in the principle of the oval
as used in ordinary shop practice; (arcs from points on the major and
minor axes). For thick heavy ovals the off-centering is very slight,
while for long, thin ones the off-centering is greater. The measurements
given on Plates A-III--1-a, b and A-III--2-a, b will give a good idea of
approximate distances to be used.

While the tool operations are much the same as in other spindle turning