A method of manufacturing a cold plate includes forming a fluid circuit on a build surface in a layer-by-layer fashion from a build material. The fluid circuit includes a plurality of peripheral walls, each of the plurality of peripheral walls at least partially defining a primary channel, a longitudinally one of the peripheral walls being formed to include apertures configured to permit excess build material to pass therethrough. A central wall of the fluid circuit at least partially defines the primary channel and a plurality of secondary channels fluidly connected to the primary channel. The method further includes removing excess build material through the apertures.