SPRUE CONFECTION AND TREE ASSEMBLY CONT’D
Before enclosing the wax tree with the flask,
make sure
to create at least 2 internal vacuum
channels in it:
1. Cut the pink wax sheet into thin strips
of approximately
¼
inch.
2. Attach the strips to the interior of the
flask, vertically positioned. The strips
should cover
¾
of the height of the
flask, leaving the bottom
¼
empty.
Once you are done assembling your wax tree
, enclose it with
the flask, making sure that the strips face up without touching
the bottom, and place it on top of the flask base. Position both
threaded rods, and set the flask top. Secure the casting base
system by tightening both nuts.
Front View
Top View
¼
¾
15
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