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Photoplotting, Photo Mask Generation. Quest or Gerber output from your C.A.D. system.

Large rangę of images available. Accept data on many floppy disk formats Vfe-inch mag tape or paper tape.

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Photographic reductions, duplication, colour pattern duplication and solder mask expansion. Ground piane reversal and insertion.

least a fairly powerful mini, but in thc last few years personal micros have be-come so powerful that they’re now quite capable of being used for CAD as well.

Techniques have also been found whereby CAD software packages could be “scaled down”, so they would fit into smaller computers and run satisfac-torily in them. In many cases this has involved things like limiting graphics resolution and maximum drawing size, in order to fit co-ordinate aata into 16-bit data words, but for most generał ap-plications this is of no great concern. For example many of the smaller PC-based CAD packages are limited to a resolution of .001” as the smallest pixel size, and to drawings of no morę than 32.768” (832mm) square — but as you can see, this would scarcely be a problem for the vast majority of applica-tions.

From a practical point of view, the nett result of all this is that nowadays there’s a great deal of very worthwhile CAD software designed to run on ma-chines like the IBM PC/AT and its clones, in particular. And most of this software runs very well, particularly if the Computer is fitted with the optional 80287 maths co-processor chip to speed things up. (Many CAD functions in-

-Distributors of-

Lavenir Technology Inc.® from Gerber Photoplot. File viewer/editor M S. DOS software

PRECISION GRAPHICS PTY. LTD.

Unit 15, 31 Waterloo Rd, North Ryde 2113

Telephone (02) 887-2648