65 - Our Best Bench Yet, страница 13
3a se There's not much to the base of the shooting board. It's just a piece of medium-density fiberboard (MDF) with a cleat for clamping the jig in a bench vise. But the base serves an important purpose. A rabbet along the edge of the base guides the plane in a straight path as it trims the workpiece. The base (A) starts out as a rectangular blank. To make it a little lighter and easier to handle, I trimmed off the back corners of the base, as shown in Figure 1 at right. Then I proceeded to cut the rabbet for the plane. As you can see in Figure 2, cutting the rabbet is a two-step process. First, a kerf is cut in the base two inches from the edge (Figure 2a). Then the workpiece is placed on edge, and the rest of the waste is cut away (Figure 2b). Drill Hole - Once the rabbet is :ut, the next step is to drill a hole in me base for a pivot pin that will be added later. I did this on the drill press, like you see in Figure 3. Cut Groove - Before you can add the cleat, you need to cut a groove in the bottom of the base. This groove will hold the cleat and keep it aligned during assembly. In Figure 4, you can see how I cut the groove on the table saw with a dado blade. Cleat - The cleat is nothing more than a narrow strip of MDF. After knocking off the sharp corners of the cleat (B), it can be glued and screwed to the base. Then a chamfer is routed around the edges of the base. (Note: The rabbeted edge of the base is not chamfered.) Pivot Pin - Hie last step to complete the base is to add a pivot pin for the adjustable stop that will be added later. The pivot pin is just a piece of V4"-dia. steel rod. It gets cut to length (IV411) and is then epoxied into the kiole that was drilled in the base in Figure 3. Once this is done, you're ready to start working on the stop and fences of the shooting board. steel pivot pin (vdia. x11/4" long) NOTE: epoxy pivot pin into base BASE base cleat CLEAT (2" x 30" - 3/4" MDF) #S> x VA" Fh woodscrew trim off corners of base and cleat END VIEW OVERVIEW cut %"-wide rabbet, 1/s" deep for cleat No. 65 ShopNotes 13 |
