Sketching4ids


Exploded view

Few designers get involved  inreally accurate explode views because they can take a very long time to construct. Although this kind of ‘shematic’ drawing is enormously useful in explaining the position/orientation of the parts, the method of assembly and the general layout. Engineers are also very found of these kinds of drawings because they can see immediately the pros and cons of the product from a molding and construction point of view. Before we had the opportunity to use CAD-programs and computers. Exploded views had to be build up from scratch. Off course these methods where very time-consuming and also less accurate as a computer-generated grid. Almost all exploded views are drawn in isometric perspective. This means that all sided of the reference cube are all equally visible. (In A dimetrical perspective just 2 planes are equal in visibility. A trimetrical perspective will show the cube with a different visibility for all 3 planes.)

Creating a exploded view with an isometric perspective grid is fairly simple. But off course this all depends on the complexity of the objects. First we start off by constructing a bounding box. Then we define all the different parts that make up the product with some simple construction lines. These lines need to be ‘copied’ in the direction of assembly. Parts that are placed in the top surface of the product must be copied following the vertical lines. Parts that are connected onto the side faces of the product need to be copied in the two corresponding horizontal directions. Make sure that the bounding boxes of the sub parts are well placed on your drawing so it’s easy ‘readable’ avoid intersections. Top parts may be drawn above the base part but only if they don’t hide any valuable information. Also if copieing the bounding boxes interferes with lay-out or readibility then create a corner in your centerlines.

When all the bounding boxes are in place and the layout is approved you can start by detailing the parts. Again the isometric grid helps us in creating arc and ellipses in a fairly easy way. Be patient and accurate for this and dont get lost in the grid.

Finally the visible edges are highlighted and assembly lines are added. Also center lines can make the drawing more readable and give it that technical tough. Further detaling like snaps can be applied if necessary.

Download Isometric grids here: Horizontal / Vertical








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