Why orthographic projection is used

Unlike isometric, we can view what's happening at every angle. Drawing dotted lines are used to show the viewer where and how and holes or hidden parts should be measured. There are many forms of technical drawings, all have their unique purposes to get the job done. From freehand drawn sketches to detailed computer-generated software, here we'll cover a few examples you'll most likely come across;.

This is the classic method of getting your technical information visualized on paper. These can make for a quick sketch upon a simple project you are building. The typical toolset used of this technique includes fine pencils and pens, compasses, rulers, square, scales, templates, and stencils. For probably more skilled artists, this requires a seriously steady hand for getting those straight lines. Typically they will use a pen, pencil and some grid paper. To go even further, this technical drawing has been around as long as the others, minus the computers.

All of the above tools are used for this technique to achieve the design. When it comes to computers, you can create an even further refined and accurate depiction of your object. Whatever technique you choose, each one will fall under using the use of orthographic projection.

A brief explination of orthographic projection. January 30, No Comments. Contents hide. Follow Us. There are three types of pictorial views:. In orthographic projection there are six possible views of an object, because all objects have six sides — front, top, bottom, rear, right side, and left side.

Although six different sides can be drawn, usually three views of a drawing give enough information to make a three-dimensional object.

These views are known as front view, top view and end view. Orthographic projection, common method of representing three-dimensional objects, usually by three two-dimensional drawings in each of which the object is viewed along parallel lines that are perpendicular to the plane of the drawing. Typically, an orthographic projection drawing consists of three different views: a front view, a top view, and a side view.

First angle projection is a method of creating a 2D drawing of a 3D object. It is mainly used in Europe and Asia and has not been officially used in Australia for many years. In Australia, third angle projection is the preferred method of orthographic projection. Note the symbol for first angle orthographic projection.

Begin typing your search term above and press enter to search. Press ESC to cancel. Skip to content Home Cover Letter What are the importance of orthographic and isometric drawing? Working drawings are sent from a designer to a manufacturer to enable them to build a product. Exploded diagrams show how a product can be assembled and how the separate parts fit together, with dotted lines showing where the parts slide into place.

The diagrams also show components that would usually be hidden in a solid drawing. Exploded diagrams can take the place of detailed written instructions, meaning they can explain the construction of something without the barrier of different languages.

They are widely used as instructions for self-assembly furniture. Elevations are the sides of an item you can see on the drawing, eg front elevation or side elevation. These drawings enable detailed measurements to be added for every section of the product.

This isometric drawing shows the plan and front and side elevations of the shape.