Some of the most important information on Engineering drawings, are general notes. This is so easily overlooked, but may convey very important information and instructions to the person reading the drawing. General notes in Engineering Drawing commonly consist of a set of standard notes or instructions, specific client specifications used when carrying out the work, […]
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When dimensioning a weld, instructions are given to the manufacturer of how the preparation should be done for the specific weld area. The weld detail on the drawing should convey all the information necessary for this preparation. Some companies does not require weld details and only require weld symbols for the identification of welds, where
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I have seen on a few forums that some people ask: “Is placing weld symbols on isometric views allowed?” and the answer is YES … only if the position of the weld is clear and there can be no other interpretation of how the weld should be done. When placing weld symbols on isometric views,
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What are tolerances? Tolerances refer to the amount a dimension my vary from it’s maximum to its minimum value. Tolerances can be indicated as a unilateral tolerance or a bilateral tolerance. Unilateral Tolerance The Unilateral Tolerance (as shown) indicates the base dimension and how much the actual manufactured dimension may vary from this dimension. As
How are tolerances shown on an Engineering Drawing? Read More »
Free hand sketching in engineering graphics are a very critical part of any engineering project. It may be used at any stage of a project’s life cycle, whether it is the planning, execution or even end phase of the project, it is a way to convey critical information regarding certain aspects of the project. What
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When representing assemblies or parts, it is often necessary to draw the assemblies or parts larger or smaller. Usually smaller details are drawn larger to enable a draftsman to include dimensions and notes and larger assemblies are drawn in a smaller scale to show the “bigger picture”. First , we need to establish what a
Mechanical Drawing Scales Tutorial Read More »