Patent ID: 7867696
Filing Date: 2011-01-11
Classification: B29C,B33Y,G03F,Y10T

Abstract:
1. A method comprising: forming at least a portion of an object by curing resin; providing a storage device containing a liquid, the liquid comprising solvent and dissolved resin, the liquid having a ratio of the dissolved resin to the solvent; removing an amount of resin from the object by submersing the object in the liquid in the storage device in a manner such that the amount of resin becomes dissolved in the liquid and thereby increases the ratio of the dissolved resin to the solvent of the liquid, the increase of the ratio altering an electrical characteristic of the liquid; utilizing changes in the electrical characteristic of the liquid as an indicator of the ratio of the dissolved resin to the solvent of the liquid; and using said changes in the electrical characteristic of the liquid to drive a visual display that is able to provide a plurality of different indications as to said ratio.