Books › Violins and other stringed instruments : how to make them ; with numerous engravings and diagrams, 1906 › scan 60
Scan 60
Violins and other stringed instruments : how to make them ; with numerous engravings and diagrams, 1906
4 lines. Read by computer on 29 August 2026. Printed page 56. See the scan on archive.org.
1little different treatment. When the hollowing, scraping, and papering are finished, trim the sound-holes with the knife and small files, and cut the V's.
3The bass-bar, the usual shape of which is shown by Fig. 67, should next be fitted as follows: First plane it down to 1/8 in., and cut it square off at 10 1/2 in. Make a pencil line nearly parallel with the joint, but 1/8 in. distant from it, down the right-hand side, and 1 1/2 in. from both top and bottom outside edges; make 1/2 in. marks at right angles with the pencil mark. The position of the bar is now fully marked out. With the flat gouge roughly fit the bar to its place, keeping it perfectly upright. Chalk the bar position well over with a piece of billiard-chalk, and putting the bar close outside the pencil mark, draw it slightly backwards and forwards, pressing gently downwards all the time. With a flat oval plane carefully take off the chalk marks which appear on the bar, and repeat the process until the chalk shows all over the fitting edge of the bar, when it will be ready to be glued in. This may take a few minutes or it may take a long while, but it must be done properly. Now remove all the chalk with a dust-brush, glue the bar, and cramp it in position with the bass-bar wooden cramps—these cramps are U-shaped and have a pinching screw at the end. A little fine sawdust should be thrown along the angles formed by the bar and the belly, then with a narrow chisel remove both sawdust and the glue which it will have taken up. When the bar is quite set, plane it down to the right size 5/8 in. deep at the point where a line between the two inner V's of the sound-holes would cross it, and gradually diminish with a slight curve to 1/8 in. at each end. The bass-bar should be placed exactly under the left foot of the bridge, not quite parallel with the centre line of the belly, but inclining nearer the centre at the neck, and further away at the tail-piece end. It should be placed equi-distant from each end. The accepted method of glueing in a bass-bar "with a spring" is described on p. 76.
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