Abstract: An improved exhaust system and method for an apparatus that removes support material from additively manufactured parts is disclosed. The apparatus includes an enclosed chamber in which the additively manufactured parts are placed. A heated detergent fluid is sprayed at the additively manufactured parts. The improved exhaust system exhausts heated air from the chamber. The improved exhaust system includes an exhaust channel having an inlet end open to the chamber through which heated air from the chamber is caused to flow. Relatively cooler air is caused to flow across the outside of the exhaust channel. When the heated air from the chamber encounters the exhaust channel across which the relatively cooler air is caused to flow, evaporated fluids in the heated air condense and fall back into the chamber. The improved exhaust system can be retrofitted onto older models of the support removal apparatus that do not have the improved exhaust system.

Abstract: A clamp assembly and method of use. Disclosed examples of the clamp assembly include an annular base, at least three movable fingers, a plurality of first finger fasteners, and a plurality of edge fasteners. The annular base defines an opening. A workpiece can be positioned in the opening. The movable fingers have first and second opposite end portions, and each of the movable fingers has substantially the same size and shape. Each first finger fastener pivotally couples the first end portion of one of the movable fingers to the base to enable movement of the movable finger in the opening. The first end portions of the movable fingers are equidistantly spaced from one another. Each edge fastener is coupled to the second end portion of one of the movable fingers and configured for movement between a clamping position and a release position.