Basic Drafting Tools AC-IDD-4 Demonstrate the correct use and management of all drafting tools and supplies. 4.1 Identify and demonstrate the correct operation and maintenance of manual drafting equipment. 4.2 Use correct lead selection to produce drawings. 4.3 Identify and use the proper type of media. 4.4 Promote responsible use of drafting supplies.

Compass Used to draw circles and arcs

Drafting Tape A specially-prepared tape used to adhere drawing media to the working surface Used to hold your drawing in place on your desk or drawing board

Dusting Brush Used to brush loose graphite and eraser dust from a drawing

Eraser Used to remove pencil lines and graphite smudges from a drawing

Erasing Shield A metal plate with various slots and openings used to protect line work when a portion of the drawing is to be erased

Irregular Curve Used to lay out any noncircular curve Also known as a French curve

Lettering Guide Used to lay out guidelines for lettering

Pencil or Lead Holder Used to hold leads of various hardness's

Architect Scale Used to measure the length of a line Common scales for a triangular architect's scale are: 16 (full), 3, 1-1/2, 1, 3/4, 1/2, 3/8, 1/4, 1/16, 1/8, 3/32. Major divisions of each scale represent feet which are further subdivided into 12ths or 16ths. A scale labeled 1/8 translates to 1/8" = 1' or 1/96 scale. The 16 or full scale is a standard ruler with each mark representing 1/16".

Engineer Scale Used to measure the length of a line The engineer's scale, also known as a civil scale, is used for measuring length and transferring length measurements at different scales or proportions of actual length. It is triangular in cross-section with each of the three faces containing two different scale markings for a total of six scales. In North America, the scales are labeled 10, 20, 30, 40, 50 and 60, with the graduations representing decimal fractions of an inch. Thus, one inch on a drawing equals between 10 to 60 feet.

Circle Template A thin, flat, plastic tool with various size openings of different shapes used to expedite the drawing of standard features

Ellypse Template A thin, flat, plastic tool with various size openings of different shapes used to expedite the drawing of standard features

Triangle A thin, flat, right-angled piece of plastic or metal with acute angles of 45, or 30 and 60 used for drawing vertical or inclined lines.

T-Square A drafting tool used for drawing horizontal lines

Rules for Maintenance and Care of Drafting Tools & Equipment Keep hands and equipment clean Keep all instruments clean and dry Do no bend templates sharply Do not use templates or scales as straight edges for cutting tools Do not use templates as eraser shields Do not hit scales and triangles on edges Do not overextend compasses and dividers Clean plastic tools with soap and water only Do not stick compasses and divider points into scales and triangles Never sharpen leads over drawing or table surface