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Basic Drafting Skills

BDS Section I

AB
T-SquareDrawing instrument with a head and a blade.
Parallel StraightedgeA straightedge controlled by a system of chords and pulleys. These permit it to be moved up or down on the board, always maintaining a true horizontal position.
Drafting MachineA device, used in drafting, that provides the combined functions of a T-square, scale, triangle, and protractor; it is attached to a drawing board or drawing table.
45 TriangleDraw vertical lines and lines @ 45°
30 X 60 TriangleDraw vertical lines and lines @ 30° and 60°
Adjustable TriangleDraw lines @ 0° to 90°
CompassDraw circles and arcs
DividersUsed to transfer measurements
ProtractorMeasure and layout angles
BrushClean drawings w/out smudging
Erasing ShieldErase near lines that should not be erased
TemplatesDrawing repetitive features
Drawing Board/Tablea rectangular board on which paper is placed or mounted for drawing or drafting.
ScalesAre triangular to allow more scales per stick
Mechanical PencilBest pencil to use for board drafting because it never has to be shapened


Western Alamance High School

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