?What do you know about the engineering drawing

A concise ‘set’ of instructions to manufacture a component without need to refer to an external source for further information.

Engineering drawing is a starting point of all engineering branches such as Mechanical, Production, Electrical, and Electronics……., It is spoken, read, and written in its own way. Engineering drawing has its own grammar in the theory of projections, its idioms in conventional practices, its punctuations in the types of lines, its abbreviations, symbols and its descriptions in the constructions.

Drawing instruments.

Drawing board, T-square, Set Square, Scales, Pencil and sand paper block, Drawing pins or cello-tape, Duster or handkerchief, eraser etc.

The drawing shows the dimensions for the component in three planes. Dimensions of the manufactured component need to be verified because some variation of size in each of the three planes (length, width, and thickness) will be unavoidable.

Orthographic projection

Orthographic Projection is a way of drawing a 3D object from different directions. Usually a front, side and plan view is drawn so that a person looking at the drawing can see all the important sides.

There are two ways of drawing in orthographic - First Angle and Third Angle.

First and third Angle projection

First angle projection is a method of creating a 2D drawing of a 3D object. It is mainly used in Europe and Asia.

In Australia third angle projection is the preferred method for orthographic projection drawing as recommended by the Australian Standard.

Engineering drawing is a set of instructions to manufacture a component without need to refer to an external source for further information.

Assembly Drawings

The assembly /sub-assembly drawings are drawings of discrete sub-systems showing in some detail how the component items fit together.   Typical assembly drawings include gearbox drawings, roller drawings, guard system drawings.

The assembly drawing will generally include at least three orthographic views with sections as needed to clearly show all of the details and their relative positions.   Overall and detail dimensions will be shown.  The drawing will include a parts list identifying all of the component details with quantities and materials and supply details.   The assembly drawing will include a list of reference drawings and notes identifying the relevant codes and specifications and testing requirements.

CAD

Acronym for computer-aided drafting. A CAD system is a combination of hardware and software that enables engineers and architects to design everything from furniture to airplanes. CAD systems allow an engineer to view a component from any angle with the push of a button and to zoom in or out for close-ups and long-distance views...

Autodesk Inventor Software 

It is a 3D mechanical engineering, design, visualization, and simulation software

 It allows you to convert the basic 2D sketch into a solid model using very simple modeling options.

 It creates digital prototyping as opposed to physical prototyping (which is costly and time consuming) by integrating 2D AutoCAD drawings and 3D data into a single digital model.

It can quickly and easily create stunning renderings, animations, and presentations that improve communication.

It can easily generate and share production-ready drawings for manufacturing teams

The automatic updating feature allows easy changes in models It has a simulation environment that allows motion simulation, static and modal finite element.