BREAKING THE GLASS
Whenever you break glass be sure to keep it away
from your face. There are three methods of breaking glass:
- Hand Method: When breaking glass using your hands, grasp
the glass on the edge that is closest to you, your thumbs
on the top side of the glass on each side of the score
line, with your index fingers on the underside of the
glass. Holding the glass firmly, make a sharp upward and
outward motion with both hands. The glass should snap
cleanly and easily along the score.
Straight score lines can also be broken on
the edge of your work table. But this method should be
used only for larger pieces. Position the score line so
that it is parallel to , but slightly over the edge of
your work table. With one hand firmly holding the glass
on the table, with a downward movement, snap off the
piece of the glass directly along the score with a
Another way to break glass is to
tap the glass with the ball end of your cutter on the
underside of your glass directly along the score line.
Tapping can most safely be accomplished by turning the
glass over on your work table. Firmly tap along the score
line until the glass separates.
Glass breaking pliers are used like your hands to break
off pieces of glass at the score line. Position the jaws
of the pliers parallel to, but not on the score line
where one of your hands would normally be. Make a sharp
upward and outward movement.
will separate the piece of glass from your score line.
They are used to remove narrow strips and small pieces of
glass where your hands cannot do the job safely.
The concave and convex jaws of this plier will
"run" a score line from one end of the glass to
another. The score line in the glass is lined up directly
with the notch in the upper jaw, the handles are squeezed
gently, resulting in a clean break along the score line.
Some models of runners are adjustable for thickness of
It is also possible
to break simple concave and convex curves using your
running pliers. Line up pliers to one end of your score
line and gently squeeze handles until you see the run in
the glass at about the halfway point. Repeat from the
other end of the score line. Continue to alternate until
the glass separates.
- Morton Tool System: This system of breaking glass works on the
same principle as the running pliers described
previously. It consists of a pressure block with a
concave undersurface used with a running button that has
a convex upper surface on top of an open grid work
With practice, it
will allow the novice to accomplish many breaks that were
once felt to be impossible by master glass cutters. The
pressure block is used to control the breaking pressure.
The score line in positioned on top of the runner button;
pressure is applied with the pressure block until the run
in glass appears. The glass is continually moved along
the runner button and the pressure block is used until
the run in the score line is complete.
- Benefits of the system are:
- You will be able to bring
pressure to areas that running pliers cannot
reach, and therefore, you can easily break
- This system is safer to work
with, since glass is not broken by holding it in
- The special cutting surface
will help you keep glass chips off your work
Go to "Cutting Circles"
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