K
[email protected]
- Jan 1, 1970
- 0
We used to reduce it 2:1, I imagine some fine stuff would have been
done 4:1.
The last time I used tape was in college and that was used on a
lathe-type PCB machine. After college, everything was done in a CAD
system (though schematics were drawn and netlists entered by hand for
a few years). The boards were done by a positive system, too, so
multi-layer and traces could be quite fine (three traces between .100"
spaced IC pads were common).
Made it difficult to check the footprints.
Make 2:1 or 4:1 models of each footprint?