orthographic projection - engineering drawing - technical drawing ( third angle)
orthographic projection is a method of representing three dimensional object in two dimensions.
it is generally used by engineers, designers, archi and technical artist to help a manufacturer understand the specific of a product that need to be created.
there are two types of orthographic projection
(1) first angle projection and
(2) third angle projection
this video focus on the third angle projection
the third angle projection are mainly used by the USA and Canada and entire Europe.
advantage of using orthographic projection
(1) you can show all dimensions nessesary for manufacture
(2) you can show all hidden details and all connection parts.
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