Hi Steve!

Please beware that when you use PcbDirectives *all* items mentioned in
the PcbDirective-menu are placed upon the net. This includes f.e. the
'routing layer' resulting in that the net is*only* routed on that layer
as only one layer can be selected. 
Of course you can delete all the unused design-rules in PCB, but if you
use this a lot this becomes a cumbersome task. Especially as only one
design-rule can be deleted at a time.
You have already discovered that only integers can be entered and that
the unit vcan not be entered in the schematic.
It is these silly facts that keep me from using PcbDirectives as they
are presently available in Protel. 

I am however in the proces of writing a server that allows the use of
the 'width' part of the PcbDirectives as well as add netclasses in the
schematic. The latter are similar to the netclasses in PCB, and allow
nets to be placed in classes, have directives added to them (Ok,
presently only the 'routing width') and transfer those classes to PCB's
netclasses. In this process I can also import the 'width'-part of
PcbDirectives allowing the user to select the unit (mils, mm or 0.1mm).

The MinWidth, Maxwidth and PreferredWidth parameters are stored in the
database. 
I find this way quite usable (although it is not perfect yet).

If any of you are interested I can make a slightly more userfriendly
version available to the forum. Just let me know.

Cheers,
Jan Martin Wagenaar

>>> <[EMAIL PROTECTED]> 27-11-01 19:57:17 >>>
I want to use the PCBLayoutDirective, so that I can set up design
rules
from the schematic.
I've never used it before, but I've figured out how to use them, and
transfer them to the PCB, but why won't Protel let me edit the track,
or
via width to less than 1mm.......I can't have 1mm tracks everywhere.

Steve 

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