Hello all,

I have several questions about the library part (both schematic symbol and
pcb footprint) approval process.


To review a new (or an existing) schematic symbol, things to check include:-

all pins
  are included;
  have the correct pin number and/or name;
  have the correct electrical type;
the symbol makes sense, ie pins are grouped logically, and placed so that a
schematic will be as clear as possible;
library fields are filled in where applicable;
part fields have a distinct name (this helps when hiding/unhiding various
fields in a schematic. Can the hidden status be set individually in a
library part?);
description, default designator, footprint alternatives are filled in.


To review a new or existing footprint, things to check include:-

all pads are
  present;
  dimensionally correct (right size and position);
  numbered/named correctly (in the correct order);
overlay is
  placed correctly, not over pads;
  practical line width, consistent with other footprint overlays;

Any corrections to this, or any to add?

When it comes to an actual review process, I would like to print (perhaps to
pdf) each separate library part with all attributes listed above. It seems
to me that printing in this way makes the review process open and accessible
at any time.

For schematic parts, I can print everything except the electrical properties
of the pins. How can I do that as well?

For footprints, I was hoping to be able to print a footprint with pad
number/name and dimensions, scaled to a reasonable size. I could make such a
document using Autocad or something, but I would like such a drawing to be
the symbol itself, or directly derived from it, preferably without manual
intervention.


Is there a better way to approach this? What do others do?

Glen


______________________________________________________
Thorlock International Ltd.    http://www.thorlock.com
+61 8 9351 1200 (tel)          +61 8 9351 9522 (fax)


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