Info

4.26 Fittings are retrieved from an electronic data bank and are positioned on the drawing at will (see also 4.6)

4.26 Fittings are retrieved from an electronic data bank and are positioned on the drawing at will (see also 4.6)

Plan Electronic Drawing

4.27 The basic location plan shown in 2.4 drazvn by CAD 96

Plan Electronic Drawing

that as the number of needles is increased so the speed of the printer is reduced.

The quality of the reproduction can never match that obtainable from other techniques and is usually confined to the production of intermediate copies.

Inkjet. This process, in which the image is formed by minute ink jets, gives a good clear line and is relatively fast in operation. It looked at one time as though it might become the industry standard, but more recently has been rivalled by the

Laser printer. This produces the highest quality line of any of the alternatives available, and since it is relatively quick and simple in operation as well as becoming increasingly economical it looks set to overtake and dominate its competitors within a short space of time.

As an illustration of the flexibility of CAD and the quality of its output, three elementalised location plans shown in chapter 2 have been re-drawn by CAD. (In this instance an AutoCad AEC 13 with ink jet plotter, by courtesy of Autodesk Ltd.)

Among other facilities possessed by CAD may be included the ability to transfer data electronically to site, consultants, contractors etc; and the economical storage of data. These aspects are dealt with in chapter 5.

Was this article helpful?

0 0

Post a comment