Basic Drafting Tools Drafting Design Technology Unit 2

Basic Drafting Tools Drafting & Design Technology Unit 2

Compass • Used to draw circles and arcs

Divider • Used to transfer dimensions

Drafting Tape • A specially-prepared tape used to adhere drawing media to the working surface

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

Lead Pointer • Used for sharpening mechanical pencil leads

Lettering Guide • Used to lay out guidelines for lettering

Mechanical Pencil (Lead Holder) • Used to hold leads of various hardness's

Protractor • Used to measure angles

Scale • Used to measure the length of a line

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, rightangled piece of plastic or metal with acute angles of 45 , or 30 and 60 used for drawing vertical or inclined lines that are multiples of 15

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