[kicad-users] Re: Data Base system integration

2008-02-19 Thread Doug
I forgot to mention another point that I had been thinking about.  

I stopped using "generic" library parts about 14 years ago.  What I
mean is, I no longer select R as a part, then fill it in on the
schematic.  I create separate parts for each value, size, or whatever
parameter.  Then I select a part based on exactly what it will be,
such as my 12K_5%_0402 below.  Kicad makes this very easy since you
can edit the library in a text editor and just change the values.  I
built up all values of 5% 0402 resistors this way and then spend no
more time filling in values.  This also lets me have the library
contain the part numbers from 1 or more distributors so they get
output into the bill of materials without further typing.  In the case
of Kicad, this also means I don't have to associate a component to
module for these parts.

In any case, this was another possible reason why a common library
might not be acceptable since most users would not want to buy from
the same distributors.

Just my thoughts...
Doug


#
# 12K_5%_0402
#
DEF 12K_5%_0402 R 0 0 N N 1 F N
F0 "R" -100 10 60 V V C C
F1 "12K_5%_0402" 100 60 60 V V C C
F4 "541-12KJCT-ND" 50 -350 50 H I C C "DigiKey"
F5 "NA" 0 -450 50 H I C C "Mouser"
$FPLIST
 SM0402
$ENDFPLIST
DRAW
S -40 150 40 -150 0 1 0 N
X ~ 1 0 250 100 D 50 50 1 1 P
X ~ 2 0 -250 100 U 50 50 1 1 P
ENDDRAW
ENDDEF




[kicad-users] Re: Data Base system integration

2008-02-19 Thread Doug
Greetings all,

I am also new to Kicad and have struggled some with creating components.
I have started using Kicad for designing professional PCBs as part of my
consulting business and so far been quite impressed.

Unfortunately for several reasons I am not sure that the professional
world would be enthusiastic to using open libraries.

First, there is some issue of trust.  If you buy a CAD system, you know
who is somewhat liable if you mess up a design.  I'm not sure a vendor
would really back you up either.  But if you download a part from the
web, then you either have to take your chances that it's right or spend
time checking.   So it may not be too much of a time saver.

Second, companies might not want to put their libraries out there since
it essentially shows what parts they are using and could potentially
give away their current designs.   If there was a way to anonymously 
put parts online then that would be ok.

Another point of contention is something the group I work with recently
discussed.  Several of us like to create our schematic symbols to look
like the physical part, myself included.  I think this allows me to
build a schematic that then translates better into a PCB.  You don't end
up with a ratsnest of traces crossing each other that looked pretty on
the schematic.  Others like a functional schematic symbol.  One of my
coworkers goes this way and will split parts such as putting the
memory/data bus of a micro as one section of the part, some of the ports
as another section, more ports in another section, and the power on yet
another section.   His schematics seem to put different sections on
different pages.  He tried Kicad briefly and gave up when he ran into
trouble making a very large multi section part.

Of course, if we can persuade component manufacturers to create
libraries and put them out there in the libraries, that would be
wonderful.

I do really hope that Kicad can continue to evolve and become a greater
force in the professional world.   The group I am working with has no
standardization and different workers use Orcad, Eagle, gEDA, and Kicad.

Regards,
Doug Deeds
Forthright Solutions


--- In kicad-users@yahoogroups.com, "David Bourgeois" <[EMAIL PROTECTED]> wrote:
>
> On Thu, 14 Feb 2008 19:50:31 +0100, Hristo Antonov
> [EMAIL PROTECTED] wrote:
>
> > Hi to all
> > Kicad is really good CAD system with real professional look and feel
,
> > but what i think is missing for use from buisnes clients is
integration
> > of component libraries in DB and the creation of open online
database
> > libraries and the integration of the product with it.
>
> I join the others on this. I didn't use CAD tools much but already had
to
> create a few components. I'm willing to spend some more time to raise
them
> to quality standard for sharing. What we probably need are guidelines
to
> get something good and unified. I'm lacking experience in this field
so
> I've no idea what makes a good symbol/footprint or a bad one.
>
> Though Danilo and others did already a great job by sharing their
libs, a
> more official library is a good idea those that shared their libraries
are
> probably in a good position to help with this. Unification,
> standardisation and a way to rassemble all users efforts towards a
single
> library would really help IMO. That would ba at least a way for simple
> Kicad users to bring back value to Kicad as most of us don't have the
> ability to dig into the code for improvements.
>
> David
>



[kicad-users] Re: Data Base system integration

2008-02-14 Thread deaninkc
I'm a fairly new user to KiCad also and I thinks its great but for me 
too, the componant libraries have been a problem. Maybe its just my 
luck but I'm having to make a lot of symbols and footprints from 
scratch but then again I have not had luck finding them in Eagle 
either. The downside of open source is there is no one to maintain 
the integrety of the whole system, so is there is no person to 
maintain a central componant library and test submissions for 
accuracy. I've even run into some errors with the existing libs in 
KiCad. One can dream however.

--- In kicad-users@yahoogroups.com, Hristo Antonov 
<[EMAIL PROTECTED]> wrote:
>
> Hi to all
> Kicad is really good CAD system with real professional look and 
feel ,
> but what i think is missing for use from buisnes clients is 
integration
> of component libraries in DB and the creation of open online 
database
> libraries and the integration of the product with it. I know that 
such
> step demands great human and financial resource , but an open 
discussion
> about Kicad future path of development is important i think. 
> First of all is it appropriate to develop Kicad as fully pro CAD
> system , that could be recognized by buisness clients. And used as 
a PRO
> system from normal users.
> And second would a open lib online database improve so much the 
system
> capabilities as i am thinking :)
> 
> Thank you for every opinion .
> 
> Regards
>




[kicad-users] Re: Data Base system integration

2008-02-14 Thread paloalgodon
> of component libraries in DB and the creation of open online database
> libraries and the integration of the product with it. I know that 

That would be better than what the pro$$$ packages offer, in my
experience.  We already have libs online, it would take a local method
of talking to them, and cleanup of the online libs into a standard
metadata format (anyone else ever wonder whats in fred's lib or jane's
lib in the files section, without having the time to d/l and look in
them?).  A Wikipedia for parts libs would be amazing.

Steve