Читать книгу The Handyman's Book of Tools, Materials, and Processes Employed in Woodworking - Paul N. Hasluck - Страница 22

A panel gauge (Fig. 37) is used to mark a line parallel to the true edge of a panel, or of any piece of wood too wide for the ordinary gauge to take in. The stock (of which Figs. 38 to 42 give four alternative patterns) is of maple, beech, or similar wood. It is 1 in. thick, and has a 3/8-in. by 3/8-in. rebate at the bottom. A mortise is made for the stem to pass through, and another one at the side for the wedge. The edges of the stock are shown square, but it is an improvement to have them rounded. The wedge (Fig. 43) should be made of box-wood or ebony if possible, and is a bare 1/4 in. thick. The taper of the mortise in the stock must be made to correspond with it. The stem should be about 2 ft. 6 in. long, and may be made of a piece of straight-grained mahogany. It should fit the mortise, not too tightly, but so that it can be moved with the hands without tapping, and is held in position by the wedge when set. A piece is dovetailed in the end, as shown, to bring the marking point level with the bottom of the rebate. The stem may be made square if preferred, or if the rounded mortise presents a difficulty. The stock should be well finished and nicely polished.

Fig. 34.—Oval Mortise Gauge.

Fig. 35.—Brass Stem Mortise Gauge.

Fig. 36.—Using Marking Gauge.