30 Mar '16, 8pm

An Excellent Primer for Sketching Mechanical Drawings

One missed opportunity for explanation that is one of those very annoying gotchas for those of us who work with international drawings is the difference between first angle and third angle drawings/views. The way projections are placed can have a big influence in how the reader interprets the drawing. And the difference between first and third angle basically means parts seem mirrored from on to the other. Even though they are the same part. When working with a CAD program and you have the space on the page, include an isometric view of the part, this will often help alleviate any misinterpretation (And would probably have prevented that “turned down instead of flats” problem mentioned in the video) As an engineer I’d advice anyone who is starting out with a CAD program who has no experience in mechanical drafting to first take an afternoon to sit down with a piece of pape...

Full article: http://hackaday.com/2016/03/30/an-excellent-primer-for-sk...

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