“An engineering drawing is a document that communicates a precise description of a part. This description consists of pictures, words, numbers and symbols.” Together, these elements communicate part information to all drawing users.
Engineering drawing information includes;
1. Geometry (Shape, size and form of the part)
2. Critical functional relationships.
3. Tolerances allowed for proper function.
4. Material, heat treat, surface coatings.
5. Part documentation information (Part Name, Part Number, Revision level).
Standard Drawing Sheets Sizes:
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