lecture paraline drawings
DESCRIPTION
Basic introduction to Paraline Drawings, with reference to basic shapes and its construction in technical drawingsTRANSCRIPT
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PARALINE DRAWINGS
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All vertical lines remain verticalAll parallel lines remain parallelAll lines parallel to X,Y,Z axis can be drawn to actual/scale dimensionsAll the vertical and horizontal lines represent the true dimension
ISOMETRIC 30/30 AXONOMETRIC 30/60PLAN OBLIQUE 45/45ELEVATION OBLIQUE 90/45
3 dimensional drawings that shows 3 elevations(plan/top, 2 elevation) of the object or building .
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ISOMETRICAll three visible surfaces have equal emphasisRelatively inflexibleOrthographic plan and elevations can never be used.
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AXONOMETRICOne vertical plane receiving more emphasis than the otherFlexibility in choice of viewOrthographic plan and elevations can be used.
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PLAN OBLIQUEHigh angle of view Horizontal planes receive more emphasisEqual importance to vertical planesOrthographic plan and elevations can be used.
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ELEVATION OBLIQUEA vertical plane remains parallel to the drawing surface.Shown in true size ( to scale)Should be the most significant face of the object/buildingOrthographic plan and elevations can be used.
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ISOMETRIC DRAWINGS
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AXONOMETRIC DRAWINGS
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SHAPEIsometric view if the Shape is ELEVATION or PLANTRIANGLE
Shapes containing Inclined lines should be enclosed in a rectangle as shown. Then first draw isometric of that rectangle and then inscribe that shape as it is.
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14231423
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ISOMETRIC VIEW OF BASE OF PENTAGONAL PYRAMID
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ISOMETRIC VIEW OF HEXAGONAL PRISM
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DIMENSIONS
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PARALINE DRAWINGS