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Check for squareness by measuring diagonally in both directions (if the measurements are equal, the cabinet box is square).
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Smooth out the glue with a small brush so that you have an even, thin layer on all faces of the rabbets and dadoes. Place one of the cabinet sides onto a work table and run a bead of glue along the two rabbets and the dado groove.
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Adjust the saw fence to 12 1/2 inches from the near side of the blade and cut each piece again to create a 1-inch-wide rabbet along the back edge of the cabinet sides to accommodate the back panel and the cleat and nailer.Cut a dado groove along one long edge of the face. Place one of the side panels, with the rabbeted side facedown on the saw table and with a long edge against the fence. Adjust the saw fence so that it is 12 inches from the near side of the dado blade.Repeat with the other cabinet side piece. Rip a dado groove in the center of each cabinet side panel to accommodate the center shelf. Adjust the saw fence so it is 11 5/8 inches from the near side of the dado blade.Repeat the same process to rabbet both ends of the other cabinet side piece.Rotate the board so the freshly rabbeted end is against the fence, and cut a second rabbet on the opposite end of the board.Place the inside face of one of the cabinet sides facedown onto the table with one of the short edges against the fence, and cut a 3/4-inch-wide rabbet along the end of the plywood side.Position the fence so that it is precisely 24 inches from the far side of the dado blade.Adjust the height of the stacked dado blade to 3/8 inch. Outfit your table saw with a stacked dado blade set to the same thickness as your 3/4-inch plywood.Cut the back panel to size at 23 1/4 by 11 1/4 inches, using 1/4-inch plywood.1 cabinet bottom at 13 by 11 1/4 inches.Cut the following pieces from the leftover 3/4-inch plywood:.Place a pencil mark along one of the 13-inch edges of each side piece to denote the bottom edge.Take one of the pieces you just cut, placing a 24-inch side against the fence, and cut it so you have a 24-by-13-inch piece to serve as one of the cabinet sides. Adjust the saw fence so that it is 13 inches from the blade.Turn the cut piece of plywood so that the short edge is against the fence, and rip the piece in half. Adjust the saw fence so that it is 24 inches from the blade.
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Cut a 26 1/2-by-48-inch piece from the 2-by-4-foot sheet of 3/4-inch plywood. Set up your table saw with the fence positioned 26 1/2 inches from the blade.
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