Isometric Views

Ar. Surashmie Kaalmegh Asisstant Professor LAD College , Nagpur

Assembly drawings

An assembly drawing shows the various parts of a product drawn to show exactly how they fit together. They are often used for products such as construction and model kits or flat-pack furniture, to show the user how to assemble the parts.

They can be drawn in two ways. A fitted assembly drawing shows

the parts put together, and can be drawn in 2D or 3D.

An exploded drawing shows the parts separated, but in the correct relationship for fitting together. Exploded views are usually drawn in 3D, as illustrated.

An exploded drawing

Isometric view

http://upload.wikimedia.org/wikipedia/commons/3/3f/Hypercubecubes.svg

Rules for drawing the isometric projection of an object:

Any line on the object which is initially vertical appear vertical in the isometric projection.

Any line on the object which is initially horizontal appear to be inclined at 30 to the horizontal in the isometric projection.

All isometric lines (i.e. lines which are initially either vertical or horizontal ) are fore shortened by the same factor. These lengths can be determined by drawing an isometric scale.

The isometric scale is applicable only for isometric lines and is not applicable for an inclined line ( non-isometric line).

Non-isometric lines are drawn by first connecting the end points by drawing two isometric lines and then drawing the isometric projections of the two connecting lines to locate the end points of the inclined line. Then, the two end points are joined to obtain the projection.

Generally hidden edges are not shown in the isometric projections.

Orthographic views are initially drawn, only when necessary.

No dimensions are shown in the isometric projection, unless mentioned otherwise.