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Schematic Capture/PCB Creation program of choice?

Schematic Capture/PCB Creation program of choice?

2009-11-02 by Steve Greenfield

Interesting... it has been impossible to get a consensus about which software package(s) are "industry standard". However, Manpower.com lists two on their "skills" list, OrCAD and Eagle.

Drat, Dip Trace has been really easy to use...

OrCAD is out of the ballpark on cost. No way I can afford it.

Eagle has the free and cheaper versions, and has a lot of users of those cheap and free versions.

Gosh darn it, I like Dip Trace!

 Steve Greenfield
Electronic Engineering Technician student
Electronic Technician 20+ years
CET Computers and Consumer Electronics
IPC-A-610D CIS Specialist

Re: [Homebrew_PCBs] Schematic Capture/PCB Creation program of choice?

2009-11-02 by Stefan Trethan

That is hardly any standard.

Manpower, around here at least, is only useful to provide warm bodies,
not engineers. The staff is certainly not qualified to compile a list
of qualifications.

Orcad could as well be dead since Cadence bought it. Eagle, well,
we'll see what Farnell does with the company. There's been so little
improvement if I didn't exchange emails with support every now and
then I'd be unsure if they are still there....

I have found a decent list of PCB cad packages, including price indication:
(It's german, but the table itself will be useful)
<http://www.elektroniknet.de/home/designtools/fachwissen/uebersicht/l/leiterplatten-design/software-fuer-jedermanns-brieftasche/druckversion/>

I'm afraid they did miss diptrace....

ST
Show quoted textHide quoted text
On Mon, Nov 2, 2009 at 8:17 PM, Steve Greenfield <alienrelics@yahoo.com> wrote:
> Interesting... it has been impossible to get a consensus about which software package(s) are "industry standard". However, Manpower.com lists two on their "skills" list, OrCAD and Eagle.
>
> Drat, Dip Trace has been really easy to use...
>
> OrCAD is out of the ballpark on cost. No way I can afford it.
>
> Eagle has the free and cheaper versions, and has a lot of users of those cheap and free versions.
>
> Gosh darn it, I like Dip Trace!
>
>  Steve Greenfield
> Electronic Engineering Technician student
> Electronic Technician 20+ years
> CET Computers and Consumer Electronics
> IPC-A-610D CIS Specialist
>
>
>
> ------------------------------------
>
> Be sure to visit the group home and check for new Links, Files, and Photos:
> http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links
>
>
>
>

Re: [Homebrew_PCBs] Schematic Capture/PCB Creation program of choice?

2009-11-03 by James Hannon

Well if you want software you really can't afford. We use Mentor Graphics for schematic and Zuken for layout here at work.Jim Hannon
http://www.fmtcs.com/web/jmhannon/
42,11.90N,91,39.26W
WB0TXL
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-----Original Message-----
From: "Steve Greenfield" <alienrelics@...>
Sent 11/2/2009 1:17:13 PM
To: "Homebrew_PCBs Mailing List" <homebrew_pcbs@yahoogroups.com>
Subject: [Homebrew_PCBs] Schematic Capture/PCB Creation program of choice?Interesting... it has been impossible to get a consensus about which software package(s) are "industry standard". However, Manpower.com lists two on their "skills" list, OrCAD and Eagle.
Drat, Dip Trace has been really easy to use...
OrCAD is out of the ballpark on cost. No way I can afford it.
Eagle has the free and cheaper versions, and has a lot of users of those cheap and free versions.
Gosh darn it, I like Dip Trace!
Steve Greenfield
Electronic Engineering Technician student
Electronic Technician 20+ years
CET Computers and Consumer Electronics
IPC-A-610D CIS Specialist
------------------------------------
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Re: Schematic Capture/PCB Creation program of choice?

2009-11-03 by drmail377

KiCad, Free Open-Source (GPL), cross-platform (MAC too), schematic capture, project manager, part editors for schematics and footprints, library management, Autoroute, Auto-Annotate, 3D viewer (Open-Source Wings3D required). Generate netlists to various formats (works with free but no open-source and windows-only LTSpice), embedded Gerber viewer, export Gerbers for other viewers. Decent native part and footprint library, much more available online. Active user and development community.

That said, there are some small edges to KiCad. But they get addressed fairly soon once reported to the Community IMHO. I wish there were better tutorials for KiCad. Perhaps that's where I can contribute.

http://kicad.sourceforge.net/wiki/index.php/Main_Page

http://iut-tice.ujf-grenoble.fr/kicad/

--- In Homebrew_PCBs@yahoogroups.com, Steve Greenfield <alienrelics@...> wrote:
Show quoted textHide quoted text
>
> Interesting... it has been impossible to get a consensus about which software package(s) are "industry standard". However, Manpower.com lists two on their "skills" list, OrCAD and Eagle.
> 
> Drat, Dip Trace has been really easy to use...
> 
> OrCAD is out of the ballpark on cost. No way I can afford it.
> 
> Eagle has the free and cheaper versions, and has a lot of users of those cheap and free versions.
> 
> Gosh darn it, I like Dip Trace!
> 
>  Steve Greenfield
> Electronic Engineering Technician student
> Electronic Technician 20+ years
> CET Computers and Consumer Electronics
> IPC-A-610D CIS Specialist
>

Re: Schematic Capture/PCB Creation program of choice?

2009-11-03 by roycepipkins

More power to you on the better tutorials. 

I been wanting to switch to KiCad to get free 4 layer design, but I expect it will be quite a learning curve. So I've been procrastinating and sticking with the free 2 layer DipTrace that takes about 15 minutes to learn to the point of significant usability.




--- In Homebrew_PCBs@yahoogroups.com, "drmail377" <drmail377@...> wrote:
Show quoted textHide quoted text
>
> KiCad, Free Open-Source (GPL), cross-platform (MAC too), schematic capture, project manager, part editors for schematics and footprints, library management, Autoroute, Auto-Annotate, 3D viewer (Open-Source Wings3D required). Generate netlists to various formats (works with free but no open-source and windows-only LTSpice), embedded Gerber viewer, export Gerbers for other viewers. Decent native part and footprint library, much more available online. Active user and development community.
> 
> That said, there are some small edges to KiCad. But they get addressed fairly soon once reported to the Community IMHO. I wish there were better tutorials for KiCad. Perhaps that's where I can contribute.
> 
> http://kicad.sourceforge.net/wiki/index.php/Main_Page
> 
> http://iut-tice.ujf-grenoble.fr/kicad/
> 
> --- In Homebrew_PCBs@yahoogroups.com, Steve Greenfield <alienrelics@> wrote:
> >
> > Interesting... it has been impossible to get a consensus about which software package(s) are "industry standard". However, Manpower.com lists two on their "skills" list, OrCAD and Eagle.
> > 
> > Drat, Dip Trace has been really easy to use...
> > 
> > OrCAD is out of the ballpark on cost. No way I can afford it.
> > 
> > Eagle has the free and cheaper versions, and has a lot of users of those cheap and free versions.
> > 
> > Gosh darn it, I like Dip Trace!
> > 
> >  Steve Greenfield
> > Electronic Engineering Technician student
> > Electronic Technician 20+ years
> > CET Computers and Consumer Electronics
> > IPC-A-610D CIS Specialist
> >
>

Re: [Homebrew_PCBs] Re: Schematic Capture/PCB Creation program of choice?

2009-11-04 by cary heestand

Hi Royce,  while I'm new at all this and no expert.  Why can't you make four layer boards by the following?
 
Make a netlist with the traces that you want on layer one and save them.
 
Make a netlist with layer two traces and save that.
 
Do the same for all the other layers.
 
Print and etch all your layers separately and then glue or bond them together.  As long as your doing your own etching the end board won't know the difference.
 
You would have to put registration points on each layer. and you would have to print test sheets to make sure the registration points were all the same distance apart.  you might have to name each layer different to get around the two layer limit of the software.
 
But the software wouldn't know it was the same schematic.
 
Just my dumb take on a way to do it,  Cary

--- On Tue, 11/3/09, roycepipkins <royce.pipkins@...> wrote:
Show quoted textHide quoted text
From: roycepipkins <royce.pipkins@...>
Subject: [Homebrew_PCBs] Re: Schematic Capture/PCB Creation program of choice?
To: Homebrew_PCBs@yahoogroups.com
Date: Tuesday, November 3, 2009, 1:35 PM


  



More power to you on the better tutorials. 

I been wanting to switch to KiCad to get free 4 layer design, but I expect it will be quite a learning curve. So I've been procrastinating and sticking with the free 2 layer DipTrace that takes about 15 minutes to learn to the point of significant usability.

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Re: Schematic Capture/PCB Creation program of choice?

2009-11-05 by roycepipkins

Hi Cary,

It's because I am an autorouter junkie. I only have so much hobby-time and I believe that using the autorouter saves me a good deal of time. 

So what I'm really after is a free CAD that will autoroute the 4 layers. I don't want to have to chose which trace goes on which layer, I'd obsess about those choices for countless hours on end constantly wondering if there is a better way. The boards I make are not worth that time investment. 

With the DipTrace autorouter I just spend an hour or two moving and adding vias to match my assembly process and call it good. 

My DipTrace process works very well but I don't get the component density I'd like. Also, even though I use a lot of SMD I don't save as many drill holes as I'd like due to all the extra vias that are used merely to hop over other traces. I'm convinced that a 4 layer board will reduce my via count significantly. 

Regards,
Royce



--- In Homebrew_PCBs@yahoogroups.com, cary heestand <c.hhestand@...> wrote:
Show quoted textHide quoted text
>
> Hi Royce,  while I'm new at all this and no expert.  Why can't you make four layer boards by the following?
>  
> Make a netlist with the traces that you want on layer one and save them.
>  
> Make a netlist with layer two traces and save that.
>  
> Do the same for all the other layers.
>  
> Print and etch all your layers separately and then glue or bond them together.  As long as your doing your own etching the end board won't know the difference.
>  
> You would have to put registration points on each layer. and you would have to print test sheets to make sure the registration points were all the same distance apart.  you might have to name each layer different to get around the two layer limit of the software.
>  
> But the software wouldn't know it was the same schematic.
>  
> Just my dumb take on a way to do it,  Cary
> 
> --- On Tue, 11/3/09, roycepipkins <royce.pipkins@...> wrote:
> 
> 
> From: roycepipkins <royce.pipkins@...>
> Subject: [Homebrew_PCBs] Re: Schematic Capture/PCB Creation program of choice?
> To: Homebrew_PCBs@yahoogroups.com
> Date: Tuesday, November 3, 2009, 1:35 PM
> 
> 
>   
> 
> 
> 
> More power to you on the better tutorials. 
> 
> I been wanting to switch to KiCad to get free 4 layer design, but I expect it will be quite a learning curve. So I've been procrastinating and sticking with the free 2 layer DipTrace that takes about 15 minutes to learn to the point of significant usability.
> 
> ---(via web post) | Start a new topic 
> Messages | Files | Photos | Links | Database 
> Be sure to visit the group home and check for new Links, Files, and Photos:
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> 
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> 
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> 
>  15
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> 
> 
> 
> Yahoo! Finance
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> Guides, news,
> advice & more.
> 
> Ads on Yahoo!
> Learn more now.
> Reach customers
> searching for you.
> 
> Check out the
> Y! Groups blog
> Stay up to speed
> on all things Groups!
> . 
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> 
> 
> 
> 
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> 
> 
> 
> 
> 
> 
> 
> 
> 
> [Non-text portions of this message have been removed]
>

Re: [Homebrew_PCBs] Re: Schematic Capture/PCB Creation program of choice?

2009-11-05 by Stefan Trethan

I don't think laziness or lack of time is a good reason to use an
autorouter or 4 layer boards.

You'll spend much more time troubleshooting and stuff if you don't
know your board very well, and even more with those internal layers.

I'd only use 4 layers if it's absolutely nececcary for the design, and
I never use autorouters.

Anyway, each his own, but I could never just autoroute a board on 4
layers and send the ugly mess to production jus to get it done. With a
hobby it's usually the making, not the getting it done, but maybe I'm
just old fashioned.

ST
Show quoted textHide quoted text
On Thu, Nov 5, 2009 at 4:46 PM, roycepipkins <royce.pipkins@...> wrote:
> Hi Cary,
>
> It's because I am an autorouter junkie. I only have so much hobby-time and I believe that using the autorouter saves me a good deal of time.
>
> So what I'm really after is a free CAD that will autoroute the 4 layers. I don't want to have to chose which trace goes on which layer, I'd obsess about those choices for countless hours on end constantly wondering if there is a better way. The boards I make are not worth that time investment.
>
> With the DipTrace autorouter I just spend an hour or two moving and adding vias to match my assembly process and call it good.
>
> My DipTrace process works very well but I don't get the component density I'd like. Also, even though I use a lot of SMD I don't save as many drill holes as I'd like due to all the extra vias that are used merely to hop over other traces. I'm convinced that a 4 layer board will reduce my via count significantly.
>
> Regards,
> Royce
>
>

Re: [Homebrew_PCBs] Re: Schematic Capture/PCB Creation program of choice?

2009-11-05 by DJ Delorie

"roycepipkins" <royce.pipkins@...> writes:
> So what I'm really after is a free CAD that will autoroute the 4
> layers. I don't want to have to chose which trace goes on which
> layer,

gEDA's PCB does that.  We're working on our third autorouter, but the
current core one (#2) is pretty good.  Not sure what the best way to
eval an autorouter is, though... you'd need a netlist and footprint
list, at least.

Re: Schematic Capture/PCB Creation program of choice?

2009-11-05 by roycepipkins

"send ugly mess to production"... I don't send anything to production. Virtually every board I make is a one-off, is home etched and is part of a competition robot. The bot must be ready by competition time or whatever amount of time I have spent will have been wasted. 

Forgive me, but I think your needs and most common use-cases are pretty different than mine. My focus is on the robot as a whole. The PCB is just one part of a larger project.

Regards,
Royce






--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan <stefan_trethan@...> wrote:
Show quoted textHide quoted text
>
> I don't think laziness or lack of time is a good reason to use an
> autorouter or 4 layer boards.
> 
> You'll spend much more time troubleshooting and stuff if you don't
> know your board very well, and even more with those internal layers.
> 
> I'd only use 4 layers if it's absolutely nececcary for the design, and
> I never use autorouters.
> 
> Anyway, each his own, but I could never just autoroute a board on 4
> layers and send the ugly mess to production jus to get it done. With a
> hobby it's usually the making, not the getting it done, but maybe I'm
> just old fashioned.
> 
> ST
> 
> 
> 
> On Thu, Nov 5, 2009 at 4:46 PM, roycepipkins <royce.pipkins@...> wrote:
> > Hi Cary,
> >
> > It's because I am an autorouter junkie. I only have so much hobby-time and I believe that using the autorouter saves me a good deal of time.
> >
> > So what I'm really after is a free CAD that will autoroute the 4 layers. I don't want to have to chose which trace goes on which layer, I'd obsess about those choices for countless hours on end constantly wondering if there is a better way. The boards I make are not worth that time investment.
> >
> > With the DipTrace autorouter I just spend an hour or two moving and adding vias to match my assembly process and call it good.
> >
> > My DipTrace process works very well but I don't get the component density I'd like. Also, even though I use a lot of SMD I don't save as many drill holes as I'd like due to all the extra vias that are used merely to hop over other traces. I'm convinced that a 4 layer board will reduce my via count significantly.
> >
> > Regards,
> > Royce
> >
> >
>

Re: Schematic Capture/PCB Creation program of choice?

2009-11-05 by awakephd

FWIW, I started using Kicad as a complete novice, and have not found the learning curve to be too hard. There are one or two things that work in non-obvious ways, but the tutorials are pretty helpful.

--- In Homebrew_PCBs@yahoogroups.com, "roycepipkins" <royce.pipkins@...> wrote:
Show quoted textHide quoted text
>
> More power to you on the better tutorials. 
> 
> I been wanting to switch to KiCad to get free 4 layer design, but I expect it will be quite a learning curve. So I've been procrastinating and sticking with the free 2 layer DipTrace that takes about 15 minutes to learn to the point of significant usability.
> 
> 
> 
> 
> --- In Homebrew_PCBs@yahoogroups.com, "drmail377" <drmail377@> wrote:
> >
> > KiCad, Free Open-Source (GPL), cross-platform (MAC too), schematic capture, project manager, part editors for schematics and footprints, library management, Autoroute, Auto-Annotate, 3D viewer (Open-Source Wings3D required). Generate netlists to various formats (works with free but no open-source and windows-only LTSpice), embedded Gerber viewer, export Gerbers for other viewers. Decent native part and footprint library, much more available online. Active user and development community.
> > 
> > That said, there are some small edges to KiCad. But they get addressed fairly soon once reported to the Community IMHO. I wish there were better tutorials for KiCad. Perhaps that's where I can contribute.
> > 
> > http://kicad.sourceforge.net/wiki/index.php/Main_Page
> > 
> > http://iut-tice.ujf-grenoble.fr/kicad/
> > 
> > --- In Homebrew_PCBs@yahoogroups.com, Steve Greenfield <alienrelics@> wrote:
> > >
> > > Interesting... it has been impossible to get a consensus about which software package(s) are "industry standard". However, Manpower.com lists two on their "skills" list, OrCAD and Eagle.
> > > 
> > > Drat, Dip Trace has been really easy to use...
> > > 
> > > OrCAD is out of the ballpark on cost. No way I can afford it.
> > > 
> > > Eagle has the free and cheaper versions, and has a lot of users of those cheap and free versions.
> > > 
> > > Gosh darn it, I like Dip Trace!
> > > 
> > >  Steve Greenfield
> > > Electronic Engineering Technician student
> > > Electronic Technician 20+ years
> > > CET Computers and Consumer Electronics
> > > IPC-A-610D CIS Specialist
> > >
> >
>

Re: [Homebrew_PCBs] Re: Schematic Capture/PCB Creation program of choice?

2009-11-06 by Stefan Trethan

You make 4 layer boards at home?

When I make the boards myself I spend even more time on a good layout.
After all I am the guy who doesn't have to spend time drilling all the
vias...

We don't have to agree on the issue, I understand that for some people
a PCB is just a means to connect stuff. Just don't be surprised to
meet people that very much consider PCB layout an art, or at least
something to be optimized.

A window is just to keep the cold air out, and a wall is just to
separate rooms, and yet most craftsmen include orderly implementation
and neat appearance in their definition of a job well done.

ST
Show quoted textHide quoted text
On Thu, Nov 5, 2009 at 8:16 PM, roycepipkins <royce.pipkins@...> wrote:
> "send ugly mess to production"... I don't send anything to production. Virtually every board I make is a one-off, is home etched and is part of a competition robot. The bot must be ready by competition time or whatever amount of time I have spent will have been wasted.
>
> Forgive me, but I think your needs and most common use-cases are pretty different than mine. My focus is on the robot as a whole. The PCB is just one part of a larger project.
>
> Regards,
> Royce
>

Re: Schematic Capture/PCB Creation program of choice?

2009-11-06 by roycepipkins

Imagine an architect came up to your wall-building craftsman, observed his plumb lines and precise right angles and proceeded to tell the craftsman that there was no good reason to make such a common wall. Imagine the architect told the craftsman that anything worth building should have graceful curves, soaring arches and should endeavor to lift the human spirit.

I think your craftsman might be quite surprised at the architect's low opinion of craftsman's precise work.

I'm not surprised at the craftsman's opinion of quality nor am I surprised at the architect's differing opinion of the same. But I do wonder why the architect did not choose to simply inspire the craftsman with the architect's own work instead of creating a negative image of himself and his work by espousing, unasked for, a negative opinion of the craftsman's work. 

Anyway, I do not make 4 layer boards at home. I merely wish to. The technique has been described to me on these boards and I'm eager to give it a whirl as part of my next project. 

Regards,
Royce











--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan <stefan_trethan@...> wrote:
Show quoted textHide quoted text
>
> You make 4 layer boards at home?
> 
> When I make the boards myself I spend even more time on a good layout.
> After all I am the guy who doesn't have to spend time drilling all the
> vias...
> 
> We don't have to agree on the issue, I understand that for some people
> a PCB is just a means to connect stuff. Just don't be surprised to
> meet people that very much consider PCB layout an art, or at least
> something to be optimized.
> 
> A window is just to keep the cold air out, and a wall is just to
> separate rooms, and yet most craftsmen include orderly implementation
> and neat appearance in their definition of a job well done.
> 
> ST
> 
> On Thu, Nov 5, 2009 at 8:16 PM, roycepipkins <royce.pipkins@...> wrote:
> > "send ugly mess to production"... I don't send anything to production. Virtually every board I make is a one-off, is home etched and is part of a competition robot. The bot must be ready by competition time or whatever amount of time I have spent will have been wasted.
> >
> > Forgive me, but I think your needs and most common use-cases are pretty different than mine. My focus is on the robot as a whole. The PCB is just one part of a larger project.
> >
> > Regards,
> > Royce
> >
>

Re: [Homebrew_PCBs] Re: Schematic Capture/PCB Creation program of choice?

2009-11-06 by Stefan Trethan

The craftsman is merely advising the architect that the straight walls
and right angles would make it much cheaper to build and easier for
every following work, to lay the floors and fit the doors, windows,
and furniture.

The curved chaotic style may appeal to the architect, and may save on
time when drawing the plans because no care is needed and mistakes are
undiscovered or disguised as features, but once the project ends up
behind schedule and over budget the craftsman will just say I told you
so.

What if all the roads were laid out by autorouters? You'd still get
there after all. Why consider geographical features, traffic load,
traveling time, land use, any more than trace width and length or
ground currents?

ST
Show quoted textHide quoted text
On Fri, Nov 6, 2009 at 6:41 PM, roycepipkins <royce.pipkins@...> wrote:
>
>
> Imagine an architect came up to your wall-building craftsman, observed his plumb lines and precise right angles and proceeded to tell the craftsman that there was no good reason to make such a common wall. Imagine the architect told the craftsman that anything worth building should have graceful curves, soaring arches and should endeavor to lift the human spirit.
>
> I think your craftsman might be quite surprised at the architect's low opinion of craftsman's precise work.
>
> I'm not surprised at the craftsman's opinion of quality nor am I surprised at the architect's differing opinion of the same. But I do wonder why the architect did not choose to simply inspire the craftsman with the architect's own work instead of creating a negative image of himself and his work by espousing, unasked for, a negative opinion of the craftsman's work.
>
> Anyway, I do not make 4 layer boards at home. I merely wish to. The technique has been described to me on these boards and I'm eager to give it a whirl as part of my next project.
>
> Regards,
> Royce
>

Re: Schematic Capture/PCB Creation program of choice?

2009-11-06 by roycepipkins

Although I have not yet attempted it, my expectation is that it will work the same way bonding a 2 layer board out two singled PCBs works. Tape them together at first, but once several via are soldered into place the board will be stuck together well enough for many purposes.

With a 4 layer assembly the trick to access the inner layers is apparently to drill the outer via holes larger than the inner holes so that it is possible to solder the via connecting wire to both the inner and outer via copper plates. 

That extra drill for the outer layers may be more of a pain than its worth with through hole components. However, using SMD I'm hopeful the process will wind up reducing my overall drill count and increase my component density. 

Regards,
Royce


--- In Homebrew_PCBs@yahoogroups.com, Trevor White <trevor.white100@...> wrote:
Show quoted textHide quoted text
>
> How do you bond a 4 layer board together?
> 
> On Fri, Nov 6, 2009 at 5:13 PM, DJ Delorie <dj@...> wrote:
> 
> >
> >
> >
> > I've made 4 layer boards at home. Not as much fun, but it gets the
> > job done.
> >  
> >
> 
> 
> [Non-text portions of this message have been removed]
>

Re: [Homebrew_PCBs] Re: Schematic Capture/PCB Creation program of choice?

2009-11-06 by DJ Delorie

Trevor White <trevor.white100@...> writes:
> How do you bond a 4 layer board together?

Double sided tape.  I adhere the tape to the out layers, drill the
"blind" vias (oversized), stick everything together, then drill the
through-vias.

The hardest part is getting a good solder connection between the outer
and inner layers.

Because of the added difficulty, I only use them when I have tricky
power/ground distribution problems.  So far, I've done it twice:

http://www.delorie.com/electronics/usb-gpio/
http://www.delorie.com/electronics/sdram/

For the USB board, I ended up redesigning it as a two-layer board for
production.  The SDRAM board is a one-off.

Re: [Homebrew_PCBs] Re: Schematic Capture/PCB Creation program of choice?

2009-11-07 by Andrew Mathison

I like the idea, but I see a lot of problems at the design stage, in making sure that there is a hole in the outer PCBs to allow soldering, in fact, I think the design problems for using more than 2 boards together, probably make it not worth while in doing....the big holes will use up more space, soldering will be a nightmare, probably the vias will have to be soldered at each level before the next level is added.......UGH!!!

  I generally love such problems, but I feel in this case that it will be a nightmare......

  Using a max of two boards back to back sounds about right for me and a great idea......

  Best wishes to all,

  Andy

  -------------------------------------------------------------------------------------------
Show quoted textHide quoted text
  From: roycepipkins 
  Sent: Friday, November 06, 2009 9:07 PM
  To: Homebrew_PCBs@yahoogroups.com 
  Subject: [Homebrew_PCBs] Re: Schematic Capture/PCB Creation program of choice?


    
  Although I have not yet attempted it, my expectation is that it will work the same way bonding a 2 layer board out two singled PCBs works. Tape them together at first, but once several via are soldered into place the board will be stuck together well enough for many purposes.

  With a 4 layer assembly the trick to access the inner layers is apparently to drill the outer via holes larger than the inner holes so that it is possible to solder the via connecting wire to both the inner and outer via copper plates. 

  That extra drill for the outer layers may be more of a pain than its worth with through hole components. However, using SMD I'm hopeful the process will wind up reducing my overall drill count and increase my component density. 

  Regards,
  Royce

  --- In Homebrew_PCBs@yahoogroups.com, Trevor White <trevor.white100@...> wrote:
  >
  > How do you bond a 4 layer board together?
  > 
  > On Fri, Nov 6, 2009 at 5:13 PM, DJ Delorie <dj@...> wrote:
  > 
  > >
  > >
  > >
  > > I've made 4 layer boards at home. Not as much fun, but it gets the
  > > job done.
  > > 
  > >
  > 
  > 
  > [Non-text portions of this message have been removed]
  >



  



Greetings from

Andy Mathison

[Non-text portions of this message have been removed]

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