Method of forming a pattern
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United States of America Patent
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-
Mar 29, 2011
Grant Date -
Dec 17, 2009
app pub date -
Jun 12, 2008
filing date -
Jun 12, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A method of forming a pattern includes providing an actual core having dimensions which are different from dimensions of an ideal core. A best fit spatial relationship of the actual core to a spatial envelope for an ideal core is determined. Locating surfaces in a die are moved to positions, at least some of which are offset from ideal core locating positions, in which the actual core is positioned in a best fit spatial relationship with the spatial envelope for the ideal core. A plurality of motors may be utilized to move the core locating surfaces to desired locating positions. The actual core is positioned in engagement with the core locating surfaces and a flow of wax is conducted into the die. If desired, a best fit spatial relationship of the actual core to a die cavity may be determined, rather than a best fit with an ideal core.
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