The back side of the steering wheel's card
board box is shown in the figure. The plywood
piece reinforces the pivot rod coming out
from the inside. The plywood piece if firmly
glued to the box's surface. A knob with
a cylindrical projection is attached to
the end of the pivot rod. Two screws are
attached at both the ends as shown. One
or two rubber bands need to be stretched
between these screws. Using a hot metal
blade, make a vertical cut on the plastic
knob. The slit thus made can be used to
hold the rubber band. Hence when the knob
rotates along with the steering (since they
are connected), the rubber band gives an
opposing force that brings the steering
( gaming / racing wheel ) back to the center
position when the steering is released.
There are two pairs of wires coming from
the steering unit - the horn wire and the
POT wire. These wires can be twisted together
and let through a small hole at the back
of the card board box. Note down the colour
of the wires and where it's purpose, so
that we can avoid confusion while interconnecting
the units.
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