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CIRCULAR SAW OPERATION To prevent chipping, the height of the circular
saw blades above the table should be just slightly greater than
the thickness of the Chemcast® GP sheet. The work must be held
firmly so that the saw moves through the Chemcast® GP in a
straight line parallel to the saw blade. The feed should not be
forced. Several sheets of Chemcast® GP can be cut at
one time by stacking one on top of another up to one inch
thickness. Suitably designed holding fixtures must be used when
stacks of Chemcast® GP are cut. When unmasked sheets of Chemcast® GP are cut,
it is necessary to take care to avoid scratching the surface of
the sheet. Working surfaces should be covered with some soft
material such as medium density felt. The surface should be kept
free of dirt and chips by frequent brushing or blowing with
compressed air. Sawdust and chips remaining on the surface of
the Chemcast® GP sheet after cutting may be removed by blowing
with compressed air. Wiping the surface of the Chemcast® GP with
a damp cloth will remove sawdust that clings to the material
because of static electricity. The damn cloth will also dissipate
the static charge. When cutting Chemcast® GP on a table saw, a
cutting board may be used to keep the Chemcast® GP from becoming
scratched. The Chemcast® GP sheet lies stationary on the board
while the board moves across the saw table. When cutting Chemcast® GP with a panel saw,
how ever, holddown clamps secure the Chemcast® GP to the saw
table while the saw moves. This procedure minimizes scratching of
unmasked Plexiglas The feed rate should be 10 to 25 feet per
minute and should be uniform. The feed should not be crowded. The
saw should be allowed to cut freely while maintaining the rated
speed of the motor. Coolants are not required for most sawing
operations, although if exceptionally smooth cuts in thick
Chemcast® GP are needed, a fine spray mist of detergent in water
or 10% soluble oil in water can be directed against the saw
blade. |
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Copyright © Plastiglas de Mexico 1999
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