How To Read Engineering Drawings
Drawing is the actual distance or size of the component. When learning how to read construction plans it is essential to understand what is contained within typical construction plans.
The scale is always shown on the same page as the drawing either under the title or below an individual drawing.
How to read engineering drawings. Start off by reading the title block found at the bottom right-hand corner of the drawing. It covers several fundamental topics1 The layout of the drawing2 Title block3 First VS. Engineering drawings are still a big part of an engineers job.
For example holes require center lines to identify the center and show that it is round. Any information in the notes that conflict with the. This video discusses the basics of reading engineering drawings.
Most include a cover page time block key notes general notes revision block drawing scale and a legend. Located in the lower right of. For example if a component part measures 68 inch on the drawing the actual component measures 2 feet.
38 1 Read as 38 inch on the drawing equals 1 foot on the actual component or system. In all orthographic drawings it is necessary to project at least two views of a three dimensional object - or one view and an adequate description in some simple cases a typical example being the drawing of a ball. Start by looking at the Title Block on each drawing.
All in all making them contributes to about 20 of a design engineers work time. Most drawings have a border around them. Sheet number and number of sheets.
It is important to understand what each line type is and what they mean. How to Read a Technical Drawing Understanding Projections and Views. Mechanical Drawings By Engineering Drawing Basics Certain features on a Engineering Drawing requires specific ways of indication.
In other words 12 means the the print is double the actual size. Hidden detail are shown with a certain line type to. This helps ensure that the full drawing is included in reproductions.
A brief tour of a set of structural design drawings for a building from the perspective of a structural engineer. Projection and dimension lines are drawn in or around the outline of the subject and are. A drawing of a circle on its own could be interpreted as the.
This video about learning how can you read and understand Measurements in Engineering Drawings and what is the rule to write dimension in Civil Drawings. The first number represents the actual size of the part and the second number represents the print. Ratio of actual size of the part compared to the size of the part on the drawing.
We at Fractory are trying to save this time by automating the reading of 3D models for production. The following notes and illustrations are intended to assist in reading and understanding simple drawings. These letters are in alphabetical order from the bottom up on the vertical axis.
The border sometimes includes letters and numbers to delineate zones in the same way as a map to help locate and pinpoint certain areas. Bill of Materials BOM Block. The intent of this video is to provide ins.
Compass and Divider Fig. The next step is to read the notes in the drawing outside the title block. This is called 38 scale.
A compressed handbook designed for the students of engineering disciplines for learning the basics of engineering drawing. Projection and Dimension Lines. 12 1 Read as 12 inch on the drawing equals 1 foot on the actual.
It can be shown as 11 or 11. It is crucial that you read everything and understand it before you estimate or start the construction project. Keep in mind that scales can vary throughout a set of architectural prints so check each page and use an architectural scale or scaled ruler to make sure youre reading.
There are other information blocks like it. 2 Drawing Standards.
