Figures 3.6, 3.7 and 3.8 show three typical examples of component drawing. It should be noted that the general rule whereby drawing and specification information are segregated may be relaxed with advantage in the case of components, particularly when, (as for example fig 3.8) they form part of a standard office library.

Note also that in fig 3.7 the term 'component' has been extended to embrace the method of fixing as well as the description of what is to be fixed. It is only common sense to treat such drawings as components rather than assemblies. Furthermore, the alternative fixing methods shown and the references back to the location drawings for overall sizes makes this one small detail of universal applicability when shelving of this nature is required throughout even the largest project.

Sub-component drawings

These have a limited use and often the information they convey will be better shown on the component drawing. There are instances, however, particularly when a range of components is being dealt with of which the sizes and appearance differ but the basic construction remains constant, when it may be more economical to present details of the construction on a separate drawing.

For example, 3.9 shows two doorsets of different sizes and different types. The basic sections from which they are fabricated are similar, however, and that fact has been acknowledged in this instance by the production of a sub-component drawing (3.10) to which the various component drawings refer.

The method is really best suited to large projects, or to those offices which have produced their own standard ranges of component details.

The assembly drawing

The juxtaposition of two or more components constitutes an assembly, and depending on the complexity of the arrangement, and on how far it may be thought to be self-evident from other information contained elsewhere in the set, it will need to be drawn at 3.9 Component drawing of different doorsets all cross-referenced back to standard sub-component drawing (3.10)




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