Circular wire sawing -
A hole is core drilled at the center of
the circular opening required and anothed
hole is drilled on the perimeter of the
circle. The wire saw is mounted on the wall,
in the center hole and a pulley system is
set up on both sides of the wall in the
centerand on the perimeter. The wire threaded
around the pulley system, through the center
and the perimeter holes and spliced intoa
closed loop. While the wire is being rotated
around the pulley system, the system is
being rotated around the center hole, resulting
in a circular opening.
This method
is capable of cutting circular openings,
through thick concrete and masonry walls,
without buying a special core bit for
each size of hole required. Openings
of 30" to 96" diameter can
be achieved in wall thickness of 24"
or more, saving both time and money
over conventioal methods.
Diamond Cut utilizes this method
for all large diameter holes (over 30"
diameter), when both sides of the structure
are accessible.
