PLTW - IED Linetypes and Drawings
Terms in this set (23)
Thin lines that serve as guides while sketching or drawing.
A line type that represents an edge that is not directly visible, because it is behind or beneath another surface.
A form of pictorial sketch in which all three drawing axes form equal angles of 120 degrees with the plane of projection.
Views of an object projected onto two or more orthographic planes.
A heavy solid line used on a drawing to represent the outline of an object.
A type of sketch involving a combination of a flat, orthographic front with depth lines receding at a selected angle, usually 45 degrees.
A method of representing three-dimensional objects on a plane having only length and breadth. Also referred to as Right Angle Projection.
A form of pictorial sketch in which vanishing points are used to provide the depth and distortion that is seen with the human eye. Perspective drawings can be drawn using one, two, and three vanishing points.
The representation of light and shade on a drawing or map.
Technical Working Drawing
A drawing that is used to show the material, size, and shape of a product for manufacturing purposes.
The general effect of color or of light and shade in a picture.
Lines that are thin lines capped with arrowheads, which may be broken along their length to provide space for the dimension numerals.
Thin lines used to establish the extent of a dimension. Extension lines begin with a short space from the object and extend to about .125 inches past the last dimension line. Extension lines may cross object lines, center lines, hidden lines, and other extension lines, but may not cross dimension lines.
A drawing that shows the various parts of an item when assembled.
Drawings that convey all of the information needed to manufacture and assemble a design.
The total permissible variation in a size or location dimension.
An orthographic view of an object using a direction of sight other than one of the six basic views (front, top, right-side, rear, bottom, left-side); used to show a surface that is not parallel to any of the principal view planes.
A dimensioned, working drawing of a single part. Also referred to as part drawing.
Cutting Plane Line
A line drawn on a view where a cut was made in order to define the location of the imaginary section plane.
A line used to interrupt a drawing if an object will not fit on a drawing sheet.
A line used to show the alternate positions of an object or matching part without interfering with the main drawing
A drawing that shows the interior of an object as it would appear if cut in half or quartered.
Lines that are used to represent the material through which a cut is made in order to show an interior sectional view.
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