Trussing with Guy Wires.

The next move is to "tie" the frame together rigidly
by the aid of guy wires. This is where the No. 12 piano
wire comes in. Each rectangle formed by the struts and
stanchions with the exception of the small center one,
is to be wired separately as shown in the illustration.
At each of the eight corners forming the rectangle the
ring of one of the eye-bolts will be found. There are
two ways of doing this "tieing," or trussing. One is to
run the wires diagonally from eye-bolt to eye-bolt, depending
upon main strength to pull them taut enough,
and then twist the ends so as to hold. The other is to
first make a loop of wire at each eye-bolt, and connect
these loops to the main wires with turn-buckles. This
latter method is the best, as it admits of the tension being
regulated by simply turning the buckle so as to draw
the ends of the wire closer together. A glance at the
illustration will make this plain, and also show how the
wires are to be placed. The proper degree of tension
may be determined in the following manner:

After the frame is wired place each end on a saw-horse
so as to lift the entire frame clear of the work-shop
floor. Get under it, in the center rectangle and, grasping
the center struts, one in each hand, put your entire
weight on the structure. If it is properly put together
it will remain rigid and unyielding. Should it sag ever
so slightly the tension of the wires must be increased