Woodworker's Journal 1984-8-4, страница 38

Lazy Susan

This graceful Lazy Susan is a pleasant diversion from typical flat-top Lazy Susan designs. Ours was crafted from spalted maple, although any attractive, close-grained hardwood will work as well.

Begin by cutting out the platter top (A), and base (C). Scribe the circles with a compass, and use either a jig or band saw to cut out both pieces. Locate the cuts just outside the compass line to allow for finish sanding. Next, drill a '/♦ in. by Vi in. diameter deep dowel hole into the underside of the platter (A), and the top of the base (C).

The concave form of both the platter and base are achieved using a simple plywood jig (see Fig. 1) in conjunction with the table saw. To fashion the platter, set the table saw blade height al l'/t in. and position the jig so that the platter edge is close to the blade. The plywood jig is best clamped to the saw table using clamps on either side. Start the cut by loosening one clamp and slowly adjusting the jig so the saw blade makes a cut about 1/16 in. into the underside of the platter. Tighten the clamp and slowly rotate the platter across the saw blade. Repeat this pro

cedure until a 4'/i in. center diameter remains (see Fig.2).

Using the jig, and following the same procedure, cut the concave form into the base (C), leaving a matching 4'/i in. diameter.

The platter face is routed out using the same plywood jig mounted on the router table. Turn the jig over and block it on either end using the cutout scraps from part A (see Fig. 3). The inside diameter cut is made using a Vi in. core-box bit (see Detail A). Gradually raise the bit up into the work. Rotate the piece and repeat the procedure until a Vi in. depth is achieved. Change to a straight bit and complete the cutout by alternately loosening the clamps, feeding the workpiece into the router bit, tightening the clamp, and then slowly rotating the piece.

The base is routed out to accept the three inch bearing, using the same jig, blocked on either side with V* in. stock. Note that with a three inch bearing, the actual diagonal measure is about 4 in. Check your bearing to determine an accurate cutout width. Use a straight bit and leave the center in place as an aid when positioning the Lazy Susan bearing.

The rounded-over platter edge is made using a V» in. round-over bit, with the workpiece laying flat on the

router table (see Detail B).

Lazy Susan bearings are commonly sold in hardware and craft shops. Ours was obtained through mail-order from The Woodworkers' Store, 21801 Industrial Blvd., Rogers, Minnesota 55374, Tel.: (612) 428-4101.

Cost for the bearing is SI.00 each, plus a SI.50 handling charge.

Finally, mount the bearing (B) to the base, and drill a single hole (see exploded view) so that the base and bearing can then be fastened to the platter.

Final sand all surfaces and finish to suit. We used several coats of Water-Iox Tung Oil mixture, although any quality penetrating oil will work as well. WvJ