Keystone THE MACHINE III Manual Del Usario página 7

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3. Grasp both handles located on
the rear of the bottom plate and raise
the plates, twist the left handle to
engage the locking pin which will hold
the plates in the upper position.
4. Place the cast (stone, gypsum, etc.)
on the vacuum plate. The Machine III
will accommodate one or two casts
of average size. If two casts are used,
place them heel to heel diagonally on
the vacuum plate. Maintain a slight
space between the casts.
Model Preparation Guidelines:
Base — The base of the model should
be as slim as practical - excessive
base can result in thinning of the mate-
rial and/or decreased details
Stone — Quality stone or gypsum
that produces a hard, dense model is
suggested. Softer materials may be
dusty. This dust may settle into the
finished appliance.
Undercuts — The trimmed sides
should be flat and cut at a 90˚ angle.
Undercuts and angles that cut into
the base will create a vacuum lock
and make it difficult to produce a
detailed appliance. If possible, it is
best to have the base flare out by
a few degrees. This is completed
during the trimming stage.
NOTE: Do not use wet casts or
excessive silicone spray as the
moisture will be sucked into the
vacuum and may cause motor
damage.