(Right Click on this page and choose Print from the Menu that comes up) "Place a straight edge across the corners of the baseplate, and make a mark with a pencil near the center of the board. Do the same to the opposite corners. The intersection of the pencil marks will give you a X, and the exact center of the board. Draw two lines at right angles to each other and going through the center of the X and extending six inches either side of the center. With a compass, draw a circle 6 5/16", using the intersection of the X as a location. This corresponds to the hole in the bearing. Position the bearing over the drawn circle and turn it so that the four holes in the lower bearing plate are centered over the four lines you drew before. Now clamp the bearing in place and drill four holes, 5/32" diameter through the baseplate, using the bearing as a template (before drilling, make sure you are using the correct holes by placing a ruler to measure the spacing of the holes, which are 8 1/2" from center to center). You can substitute wood screws to secure the bearing to the baseplate, and in that case, do not drill the 5/32" holes, and use a suitable pilot drill for the wood srews that you selected. The corners of the baseplate can be rounded off for safety as well as appearance. Place a straight edge across the corners of the turntable (3/4" by 14 1/4" square particle board) and proceed as you did with the baseplate but this time draw a circle of 9 1/2" diameter and a circle of 14" diameter. The inner circle will intersect at four points on the centerlines. Drill four holes at these locations. Repeat the drilling procedure that you did on the baseplate, including the substitution of wood screws, if desired. Bring the turntable to 14" diameter by cutting and sanding. An excellent way to do the sanding would be to construct a holding board to mount the bearing on and the turntable and sand the outer edge to 14" diameter using the center of rotation of the bearing itself. The holding board should be less than 14" diameter and fastened to the sanding machine for safety. If you choose the drill through method, use 8-32 nuts to hold the bearing to the turntable temporarily. Use 3/4" access hole in the bearing to fasten the turntable and bearing together for the sanding operation." Parts List for Turntable Baseplate 3/4" X 16" X 20" Particle Board Bearing #9549 12" - Home Depot Sheperd Hardware Turntable 3/4" X 14" Diameter Particle Board Brake Fingers 5/16" X 1" X 3" (4 pcs) Maple Guide Rods 3/16" Dia X 2 3/4" (4 pcs) Drill Blanks Guide Pin Brgs. 3/16" I.D.. X 5/16" O.D. X 3/8" L Brass Adjusting Screw 8-32 X 1 3/4" Long (2 pcs) SOC HD Screw Knob For 8-32 SOC. HD Screw (2 pcs) Press on Spacer 5/32" I.D. X 3/8" O.D. X 3/8" L (2 pcs) Brass Spring 3/8" O.D. X 1" Free Length (2 pcs) Compression Tee Nut 8-32 (10 pcs) Plated steel Brake Finger Pads .015" X 1" X 1" (2 pcs) Teflon sheet Screws 8-32 X 3/4" (8 pcs) Phillips R.H.