2. Drafting - is the drawing of objects to
scale, usually a top view, main view and
side view, to tell a machinist the
specifications of what he will be making,
what it looks like, and what dimensions
and special work will be required or
needed to make it. Often such drawings
are made into blue prints, which have
white lines on a blue background
4. 1. Drawing Board - it is in this board where the drawing paper is
placed. Here, the paper should be fastened with adhering tape to
prevent the paper from any movement. It measures 24 x 36 inches and
made with a smooth surface. The edge of the drawing board serves as
the base of the triangle when projecting line or lines in the different
angles. Using the T-square the edge of the board could be used as a
guide in creating horizontal lines.
5. 2. Triangles - are used to project lines from a horizontal base, projecting
isometric drawing as well as lines in an oblique drawing. It is usually made
from light transparent celluloid materials.
6. 3. T-square - is primarily used in projecting horizontal lines. The T-
squares head could be detached or fixed. The lower edge of the T-square
maybe used as a guide for cutting. The blade on its upper edge is called as
the working edge. It is commonly made from celluloid materials with its
straight edge and wooden blade
7. 4. Protractor - is commonly made from celluloid plastic. This
instrument has a calibrated angle or degree ranging from 0 degree to
360 degree. It is primarily use to plot angles on the drawing
8. 5. Drawing Pencil - is used to sketch drawings. There are different
kinds of drawing pencil. They varies or classified in accordance with
their grade of softness as well as in the hardness of their lead.
9. 6. Technical Pencil - is commonly used to finalize a sketch. The
point of the technical pencil is classified in accordance with the thinnest
of lines. The finest line came from the smallest pin calibration.
