A Text-Book of Engineering Drawing and Design, Vol. 2: Including Practical Geometry, Plane and Solid, and Machine and Engine Drawing and Design; Machine and Engine Drawing and Design (Classic Reprint) - Tapa blanda

Sinopsis

Excerpt from A Text-Book of Engineering Drawing and Design, Vol. 2: Including Practical Geometry, Plane and Solid, and Machine and Engine Drawing and Design; Machine and Engine Drawing and Design

All such details, as bolts and nuts, keys and other small and repeated parts, should be left until the size and position of the leading parts have been, finally fixed and drawn, otherwise an alteration in a leading part means a rubbing out of all the details. When the object contains a number of similar parts such as bolts and nuts, the similar circles and lines of each should be drawn in together, and not by finishing each one separately. As far as possible, the student should aim at not having to take a dimension for the same part from his scale or rule more than once.

In many of the following examples an effort is made to show the order in which the different parts should be drawn, for it is quite impossible to design properly unless the relation of the different parts to each other is fully and clearly recognised.

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