How to Make a Bowstring : Page 383
Set the dividers at .4 inches. Begin at point A and markpositions down the left line until 13 have been so marked;do the same, beginning at point B, with the other side. Selecta drill a little smaller that the headless nails and drill holes1/2 inch deep down each line at the marked positions—26holes in all. Drive cotter pin at point A, cut off the head, andsee that the slot points across the board. The reason for thecotter pin is that it makes a tension clamp to hold the thread;the thread may be pushed into the slot, an operation that doesaway with tying the thread at that point. Drive headless nailsin the drilled holes. See that the nails stand up straight andthat they are of a uniform height—5/8 to 3/4 of an inch. Driveheadless nails at point C and D. From where center linecrosses line D-C, measure up the board 133/4 inches and markthis position. Make a notation on the board with a pencil,5 feet 8 inches point E. Set the dividers at 1/2 inch. Begin atpoint E (the 5 feet 8 inches position) and mark points up anddown the board and drill at these positions—along the centerline. Lay out and mark the lines and numerals with ink asappears at the top of the sketch. Do the same at the lowerend of the board. Make a cut out on left side of board asshown in sketch. The cut out is for the purpose of making itmore convenient to get the finger under the threads at thispoint. Clean off board and varnish. When the varnish is dry,the board is ready to use.