Essentials of drafting; a text and problem book for apprentice, trade and evening technical schools (1918)
Svensen, Carl L. (Carl Lars), 1884- · New York, D. Van Nostrand company · leaf 117
G Making a Sketch. — To make a sketch the following ordermay be pursued. First examine the object, determine the num-ber of views necessary completely to define it, and observe theproportions. Then proceed to sketch very lightly, locatingcenter lines and blocking in the limits for all views.… … Fig. 2 6^ F/g.26S marking points and drawing from one point to another. Viewsshould be blocked in completely with straight lines regardless ofthe number of curves and circle arcs. To sketch a circle draw center lines at right angles (Fig. 263),space off radii, as shown in Fig. 264, on the center…
Mechanical drawing
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![An illustration from Champ fleury : au quel est contenu lart & science de la deue & vraye proportio[n] des lettres attiques, quo[n] dit autreme[n]t lettres antiques, & vulgairement lettres romaines proportionnes selon le corps & visage humain ... (1529)](https://img.insideoutlibrary.com/img/200/ia-champfleuryauque00tory-91-62.webp)
