Essentials in Mechanical Drawing

ISBN: 9781330840627 出版年：2016 页码：65 L J Smith Forgotten Books

This brief treatment of the essentials of mechanical drawing is designed to give instruction in the rudiments of plan drawing as it occurs in everyday life, so that the student will be able to read and understand ordinary drawings and be able to do ordinary mechanical sketching. The book should be of value also to one who is about to take a longer course in drawing, for it aims to correct the com mon mistakes of the beginner. Where work is given without the regular instruments, it is Well to provide the students with small drawing boards about 12 X 18 inches in size, together with a T square. This equipment makes for more rapid and accurate work. The bottom edge of the drawing board can be planed square with the left side so that the T square may be used for both horizontal and vertical lines.