Drawing Material pt 2 Flashcards
referred to as technical drawings, mechanical drawings
or working drawings that requires the use of necessary drawing
instruments.
INSTRUMENTAL DRAWING
used extensively by draftsmen. It
replaces the T- squares, scale, triangle and
protractor.
Drafting Machine
two
movable arms or links which make it possible
to
locate the horizontal and vertical
straightedges at any desire position.
Drafting Machine / Drawing Board
Drafting Machine is not available. _____________ will do.
Drawing
Board
drawing horizontal lines and
for accurate mounting of drawing
plates. This is also used as guide to the
triangles in drawing vertical and
slanting lines.
T – Square
most common pen used for
inking the drawing instead of Ruling
pen.
Technical Pen
The thickness for the line drawn
expressed in ____________ will depend on
the size of the technical pen needle.
millimeter
guide for drawing vertical and
inclined lines particularly at standard angles 30°, 45° and 60° by placing these triangles firmly against the working edge of the T- square.
Triangles
use as guide for drawing
irregular curves that cannot be performed
by compass.
French Curves
A set of French Curve must at
least ___________________
three pieces.
Use for drawing arcs and circle. It has a
fixed pin in one leg and the other has an
adjustable screw to hold lead, compass
adaptor and pin to perform.
Compass
- Use for transferring
measurements or for dividing lines
into any number of equal parts.
Divider
A device that can be attach to the
adjustable screw of the compass for
the purpose of holding technical pen.
Compass Adaptor
To prepare technical drawings full
size or to a variety of reduced or
enlarge sizes.
Triangular Scale
A rules type plastic tool with opening of
different shapes and letters cut into it to
serve as guide by technical pen needle.
Templates
Use for measuring angles
Protractor
These are
two types of protractor
the semi circular
the circular type.
It leads were classified as Hard (H)
Medium-Soft (HB) and Soft (B). These
lead classifications are governed to
some extent by the type of drawing
made. Draftsmen often prepare to
use mechanical Pencil.
Pencil
Use for removing error line drawn
by using pencil or ink without making
much damage to the drawing plates.
Eraser
A rectangular thin sheet of metal or
plastic with holes various shape shield
is used to protect the plate when
removing error lines.
Erasing Shield
It is a measuring instrument and
should not be used to draw lines.
The Scale
Scale
are availability in ______ and _________
styles.
flat and triangular
