This book contains a design for belt-fed blue circuit production that outputs 7.7 circuits per second, or almost one fifth of a blue belt. It also includes a blueprint the same design repeated twice side-by-side, with the second column flipped horizontally so that the combined factory is lane-balanced. Additionally, it includes the doubled-up design repeated twice times so that the combined design consumes eleven blue belts of green circuits and just over one blue belt of red circuits consumes and produces just over three quarters of a blue belt, which demonstrates how the design can be tiled.