How to Fix the Paper. Finding-Marks—damp-stretching. Using the Squares. To draw Parallel Lines. Sharpening the Pencil. Lining in. Managing the Ruling Pen. Inking in Curved Pines. To keep Drawings Clean. Where to Commence a Drawing—haw to proceed. Examinations—how to draw what to avoid. Trying otf Dimensions. To Measure Curved Pines. Managing the Compasses. Locating Centre of Circles. Draughtsmen's Lines and Signs. Sections. Standard list of Material Hatchings
Fixing the Drawing Paper for elementary work — The paper is usually secured to the drawing hoard by means of drawing pins at the corners (see Fig. i, page 25). If the paper cockles, on account of its stiffness or through rolling up, fix first a pin at top and bottom edges near the middle, then smooth the paper out with the hand, one side at a time, and pin the corners, thus making it lie quite flat. If it has to be removed from the board before the drawing is finished, a short pencil mark should be made on the paper at each extremity of the edge of the T-square, and these marks made to coincide with the edge of the square when reflxing. This ensures parallelism in subsequent lines (see / /, Fig. 1, p. 25). Students at technical schools, etc., who may have to use a different board on each evening, should invariably place these " finding marks " on the paper immediately on laying it down. Fur elaborate drawings, or those that have to be coloured, it is better to damp-stretch the paper ; this is accomplished by turning down a margin all round the sheet of about | of an inch, then sponging over the
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