Working Drawings Handbook
himself redrawing 80 per cent of the information time
and again in order that changes in the other 20 per cent
could be properly recorded. The use of CAD makes this
process a lot easier and more rapid but it is still a
somewhat pointless exercise.
The more sensible way to deal with providing this sort of
information is to prepare the assembly details in
conjunction with, and related back to, the series of
sections described and advocated in the previous
section on general arrangement drawings. The relevant
information would then be cross-referenced on the lines
of 3.17and 3.18.3 The assembly drawing should not be used to convey
unnecessarily detailed information about the components
from which it is to be produced. Consider the assembly
section shown in 3.19. The window frame is a standard
section and will be bought in from a supplier ready for
fixing into the structural opening. There was no need3.15 Scale of 1 : 5 is necessary to show this detailing adequately