Method of post processing stereolithographically produced objects
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United States of America Patent
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Jan 9, 1996
Grant Date -
N/A
app pub date -
Dec 22, 1994
filing date -
Dec 22, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method of evacuating uncured resin from internal passages of semi-hollow stereolithographically produced objects includes, subjecting the object to air flow for between about 0.5 hours and about 2 hours, at a temperature greater than about 75.degree. F.; externally cleaning the object with alcohol; submerging the object in a bath of alcohol, wherein the bath is internally agitated; removing the object from the bath and repeating the above steps to displace any residual resin, wherein total object exposure time to alcohol does not exceed three hours.
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