Abstract: An additive manufacturing device includes a container for containing feed stock material and having an optically transparent bottom wall. The additive manufacturing device further includes a radiation source configured to emit radiation in an optical path incident on the bottom wall and a sensor positioned in the optical path of the radiation above the bottom wall. The sensor is configured to sense a temperature of feedstock material at a reaction interface as the radiation polymerizes at least a portion of the feedstock material. The sensor is constructed to meet a transparency threshold and a flexibility threshold.

Abstract: A stereolithography system comprises an emitting device and a tank above the emitting device. The tank has an optically transparent bottom wall. There is a linear stage extending away from the tank and a carrier platform moveable along the linear stage and a membrane within the tank. The membrane has a first surface and a second surface. The membrane and the optically transparent bottom wall of the tank define a chamber which contains a fluid. The membrane sits atop the fluid and resin sits atop the membrane. The fluid holds the weight of the membrane and the resin, and provides the membrane with a substantially flat printing surface while allowing the membrane to flex. The fluid may be a liquid, a semi-solid gel, or a substance having a consistency therebetween. The membrane may be a composite membrane made of different materials on the first surface and the second surface thereof.

Abstract: A wine aerator comprises a spherical aerating member and an open-mouthed hemispherical receptacle which releasably receives the aerating member. The receptacle has an inner surface, an outer surface, and an outlet. Projections project from the inner surface of the receptacle and support the aerating member within the receptacle. Ribs extend along the outer surface of the receptacle and space the receptacle apart from a wine glass.

Abstract: A wine aerator comprises a spherical aerating member and an open-mouthed hemispherical receptacle which releasably receives the aerating member. The receptacle has an inner surface, an outer surface, and an outlet. Projections project from the inner surface of the receptacle and support the aerating member within the receptacle. Ribs extend along the outer surface of the receptacle and space the receptacle apart from a wine glass.