Oblique projection is a method of drawing objects in 3 dimensions. It is quite a simple technique compared o isometric or even perspective drawing. However, to draw accurately in oblique projection traditional drawing equipment is needed.To draw it correctly in oblique projection three main rules must be followed. 1. Draw the front or side view of the object.2. All measurements drawn backwards are half the original measurement. 3. 45 degrees is the angle for all lines drawn backwards.
Isometric drawing is way of presenting designs/drawings in three dimensions. Designs are always drawn at 30 degrees in isometric projection. It is vital that drawing equipment such as T-squares and 30/60 degree set squares are used carefully. The drawing paper should be clip securely to a drawing board.
Orthographic drawing is a way of drawing a three dimensional object. Normally the object is drawn as three separate, related views - Front View, Side View and Plan View.The front view, is a drawing of the block, as if you are looking directly at the front of the object. The side view, is a drawing of the block, when it has been rotated so that one of its sides is now directly in view. The plan view, is a ‘birds eye’ view, from above.
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