Chapter 3 Flashcards
smooth board
36”X34” most versatile, table top drafting board and parallel bar with tile feature
drafting board cover
resilient surface serves as a drawing underlay ment, flexible sheet vinyl cut to size
parallel bar
horizontal straightedge installed on board, used to draw horizontal lines
t-square
stand-alone straightedge consisting of head and blade, 30” most common, used for drawing long angled lines
triangle
used for drawing vertical or angled lines,named for angles they draw; 45,30-60* and adjustable
cutting mat
self-healing, hard vinyl surface used as underlay for cutting
architect’s scale
Measuring tool with six edges that enables a drafter to draw items proportionally accurate, Measured in feet and inches ¼” scale: ¼ inch equals 1 true-size foot
architect’s scale 2
Inches measured with subdivided scale Imperial rule measures life size Dimensions are written in feet and inches, ex. 2’ – 0”
metric scale
measuring and marking drawings done in system international (metric units), 1 meter=39 1/3”, units abbreviated written lower case ex. 7.65m
proportional scale
enlarge and reduce a picture
leads
sticks of graphite from very hard(light) to very soft(dark), light lines used for layout and construction work, dark lines used for object lines
drafting eraser
removing pencil or pen lines
drafting tape
adhesive-backed paper less sticky than masking tape, rolls or dots
eraser shield and drafting brush
aid in erasing
lead pointer
sharpening 3mm drafting leads
