Resin viscosity detection in additive manufacturing
AssigneeCarbon, Inc.
InventorsJoshua D. Deetz, Catherine E. Wood, Ronald A. Truong
Life of this patent
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Abstract
A method of measuring the viscosity of a resin in a bottom-up additive manufacturing apparatus, includes the steps of: (a) providing an additive manufacturing apparatus including a build platform and a light transmissive window, said build platform and said window defining a build region there between, with said window carrying a resin; (b) advancing said build platform and said window towards one another until said build platform contacts said resin; (c) detecting the force exerted on said build platform by said resin; and (d) generating in a processor a viscosity measure of said resin from said detected force.
Claims9
A method comprising the steps of:
- (a) providing a bottom-up additive manufacturing apparatus including a build platform and a light transmissive window, said build platform and said window defining a build region there between, with said window carrying a resin;
- (b) advancing said build platform and said window towards one another until a surface of said build platform facing said window contacts said resin;
- (c) detecting the force exerted on said build platform by said resin using a force sensor arranged against a side of said build platform opposing said surface;
- and
- (d) generating in a processor a viscosity measure of said resin using said detected force and position time series data of said platform.
Dependencies are inferred from the claim text.