Speculations about the historical origins of the term "lazy Susan" abound. One enduring myth claims that since the often round, rotating serving tray was so efficient that servants, then frequently named Susan, could work less, making them "lazy." While the veracity of that myth is questionable, the lazy Susan's efficient serving capacities are real. Build a wooden lazy Susan yourself and you'll spend your next big family meal spending less time serving, too.
Cut your hardboard to 12-by-4 inches with the jigsaw. Clamp the hardboard to the workbench. Draw a line parallel to the short side of the board, about 1 inch from the short edge; stop the line about an inch from the other edge. Cut down your pencil line until you reach the end of the line.
Leave the blade of your saw inside the groove, lifting it slightly from the hardboard to apply double sided tape to the bottom of the jigsaw. Attach the hardboard to the jigsaw with the tape by pressing down; this creates a circle cutting jig.
Place the board jig on top of a sheet of plywood, with the longest section over the plywood and the edge of the blade touching the plywood's edge. Nail the board jig to the plywood close to the board jig's other short edge but directly in between the jig's two long edges; the nail functions as a pivot.
Cut the three scrap pieces of plywood to 6 inches square, each. Attach the three pieces of plywood together on their largest sides using the double stick tape. Rest the plywood and jig on top of this platform.
Cut a circle out of the plywood by turning the saw around the plywood in a sweeping motion, allowing the jig to create a perfect circle. Repeat all the steps using a 6-inch long piece of hardboard to create a smaller circle.
Sand the wooden circles. Condition your wood, and then stain or paint its surfaces. Protect your work with a coat of sealant.
Encircle the wooden circles' edges with the banding, ironing them on according to the banding's package instructions. Trim off any excess banding with your utility knife. Disregard this step if you painted your circles.
Using the straight edge and a pencil, lightly draw several lines across the circles, bisecting the circles in various directions; the exact center of the circles are located where the lines all intersect. Mark this spot on each circle and then erase all other lines.
Set one side of the bearing on the smaller circle, exactly over the circle's center; the bearing should sit flush with the circle. Fasten the bottom side of the bearing to the small circle using your pan head screws.
Rotate the top section of the bearing so that the bearing's two sections create a "star" shape. Mark the locations of the top bearing's screw holes by poking through them to the circle below with your awl, creating starter holes.
Drill completely through these four starter holes, creating four equidistant ½-inch diameter holes. Place the unattached bearing side of the small circle directly in the center of the large circle. Screw through the holes in the small circle to join the unattached side of the bearing to the large circle.
Stick your four adhesive-backed feet at equidistant locations on the side of the small circle which isn't attached to the bearing; this is now the underside of your completed lazy Susan.