There is nothing which adds to the general appearance of a drawing so much as neat, attractive lettering. This does not mean that fancy and elaborate decorative lettering is advised, but that on all drawings the lettering should be clear and easily read; the style and spacing of letters should be uniform. The matter of slant is not important so long as it does not vary in the same drawing.
For all practical purposes lettering must be speedily as well as neatly done, so it is necessary to develop skill in making letters freehand. Rule lines to guide you in the height of the letters, but train your eye and hand to space and execute the letters and figures without any further guide. Become familiar with some one form and style of letter and practice it until you can make that alphabet speedily and well. (See Figure 9.)
The following types are given to assist you in acquiring form; you should practice them over and over. You should frequently lay out and execute complete letter sheets the same size and style as your other drawing plates.
The following problems in construction will give you practice with the drawing instruments and will help you to understand some of the most important principles of mechanical drawing. The directions for the drawing are given in such a way as to allow you to think for yourself; the supplementary problems should also be worked out if time will permit, for they are intended to give further application of the principles set forth in the regular problems.
The matter of how working drawings are prepared for the shop is clearly explained in plate V. You should give this plate careful study, for it sets forth the principles upon which all the working drawings of this book are made.
For practice in this part of your drawing work use the shop projects, and after studying the drawings furnished, together with the suggestions, prepare working drawings of your own, employing original ideas as much as you can without violating any principles of construction. You will have to discuss these points with your teacher.