e A-I--1-a, for shoulder cutting. With a sharp pencil
mark the center of each bead to be made. This line is the starting point
for all cutting.
Place the chisel on the rest, with the cutting edge above the cylinder
and the lower grind tangent to it. Draw the chisel back and raise the
handle to bring the heel of the chisel in contact with the cylinder at
the line indicating the center of the bead. The chisel is then moved to
the right (if cutting the right side of the bead); at the same time the
chisel is continually tipped to keep the lower grind tangent to the
revolving cylinder and also to the bead at the point of contact. Fig.
13. This cut is continued until the bottom of the bead is reached. It is
well in turning a series of beads to work the same side of all before
reversing to the other side.
Note:--The same principles employed in this exercise are also used in
working out long convex curves such as are found in chisel handles,
mallet handles, etc. The only exception is that in most cases the point
of contact need not be the heel of the chisel but higher up as in
ordinary straight work.
A-I--7-a--Combination Cuts
These exercises are so designed as to include one or more of each of the
foregoing cuts. The student here is given an opportunity of combining
these cuts into one finished product.
[Illustration: Fig. 13.]
An analysis of the exercise chosen should be made to determine which of
the various cuts should be made first, second, etc., in order to produce
the exercise in the shortest time and with the least amount of tool
manipulation.
After the student has mastered these cuts with a certain degree of skill
and accuracy, he is ready to apply them in working out various models in
Section II.
A-II--1-a. Chisel Handles
At this point it is well to state that the small end of all work should
be turned at the dead center. In the case of chisel handles the socket
or ferrule end is at the dead center where the stock can safely be cut
away to permit the fitting of the ferrule or the socket.
After the stock is turned to a cylinder of the largest dimension
desired, the taper, for the socket chisel, should be turned first and
fitted to the chisel in which it is to be used. Then the rest of the
handle is worked out. Ferrules should also be fitted in the same manner.
A drive fit should be used for all ferrules.
A-II--2 and 3. Mallets and Gavels
The biggest source of trouble in these models is
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