Homebrew_PCBs

----- Original Message -----
From: "David McNab" <david@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Monday, June 20, 2005 3:19 AM
Subject: [Homebrew_PCBs] bigger boards on Eagle Light


> Hi all,
>
> For now, I'm quite ok with the 80mm x 100mm board size restriction in
> the free 'Light' version of Eagle.
>
> However, I might soon need to do bigger boards.
>
> So a very simple idea hit me for how to do this in Eagle Light.
>
> Assume we want boards up to 320 x 400 mm.
>
> The obvious recipe would be:
> - use an 80 x 100 board
> - create a custom component library
> - populate this library with all the components one uses
> - edit the components' packages artwork, scaling them down to 1/4
> of their size - pads, holes, the lot
> - do 'Edit'/'Design Rules', and scale everything down to 1/4 of the
> original values - trace widths, clearances etc
> - in the board editor, scale the grid down to 1/4 the size
> - if autorouting, scale the routing grid to 1/4 the size
> - when printing out the artwork, scale it up to 4x the size
>
> Rather time-consuming, but something I'm likely to try on a temporary
> basis while I'm getting the money together to pay for Eagle Standard.

Perhaps that is why most other PCB software demos have a 100 hole limit. 8-)

Leon
--
Leon Heller, G1HSM
leon.heller@...
http://www.geocities.com/leon_heller



--
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.323 / Virus Database: 267.7.8/22 - Release Date: 17/06/2005

---
[This E-mail has been scanned for viruses but it is your responsibility
to maintain up to date anti virus software on the device that you are
currently using to read this email. ]

----- Original Message -----
From: "David McNab" <david@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Monday, June 20, 2005 3:19 AM
Subject: [Homebrew_PCBs] bigger boards on Eagle Light


> Hi all,
>
> For now, I'm quite ok with the 80mm x 100mm board size restriction in
> the free 'Light' version of Eagle.
>
> However, I might soon need to do bigger boards.
>
> So a very simple idea hit me for how to do this in Eagle Light.
>
> Assume we want boards up to 320 x 400 mm.
>
> The obvious recipe would be:
> - use an 80 x 100 board
> - create a custom component library
> - populate this library with all the components one uses
> - edit the components' packages artwork, scaling them down to 1/4
> of their size - pads, holes, the lot
> - do 'Edit'/'Design Rules', and scale everything down to 1/4 of the
> original values - trace widths, clearances etc
> - in the board editor, scale the grid down to 1/4 the size
> - if autorouting, scale the routing grid to 1/4 the size
> - when printing out the artwork, scale it up to 4x the size
>
> Rather time-consuming, but something I'm likely to try on a temporary
> basis while I'm getting the money together to pay for Eagle Standard.

Another thought, why not design the bigger board as two boards, and put the
two pieces of artwork together?

Leon



--
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.323 / Virus Database: 267.7.8/22 - Release Date: 17/06/2005

---
[This E-mail has been scanned for viruses but it is your responsibility
to maintain up to date anti virus software on the device that you are
currently using to read this email. ]

> Another thought, why not design the bigger board as two boards, and put the
> two pieces of artwork together?

>
> Might try that - but there might be some different complications:
> - need for two schematics
> - constraint on the autorouter of having to interface the boards
> through fixed-position pads
>

> On Mon, 20 Jun 2005 08:53:51 +0200, David McNab <david@r...>
> wrote:
>
> >
> > Might try that - but there might be some different complications:
> > - need for two schematics
> > - constraint on the autorouter of having to interface the boards
> > through fixed-position pads
> >
>
>
> What you end up with is a bunch of librarys that are all too small,

> get the real version now, if you get it eventually it makes no

> Also, i dunno about eagle, but i for one am glad i can pester my PCB
> software manufacturer with all the problems it has (and there are

> sadly..)
>
>
> ST

On 6/20/2005 3:06 PM, Phil wrote:

>That does seem like a huge amount of work to avoid paying for
>something. Much better to modularize your design and do multiple
>boards if you don't want to pay for it.
>
>Me, I paid for eagle and am glad I don't have to deal with that sort
>of thing.
>
>--- In Homebrew_PCBs@yahoogroups.com, "Stefan Trethan"
><stefan_trethan@g...> wrote:
>
>
>>On Mon, 20 Jun 2005 08:53:51 +0200, David McNab <david@r...>
>>wrote:
>>
>>
>>
>>>Might try that - but there might be some different complications:
>>> - need for two schematics
>>> - constraint on the autorouter of having to interface the boards
>>> through fixed-position pads
>>>
>>>
>>>
>>What you end up with is a bunch of librarys that are all too small,
>>
>>
>better
>
>
>>get the real version now, if you get it eventually it makes no
>>
>>
>difference.
>
>
>>Also, i dunno about eagle, but i for one am glad i can pester my PCB
>>software manufacturer with all the problems it has (and there are
>>
>>
>plenty,
>
>
>>sadly..)
>>
>>
>>ST
>>
>>
>
>
>
>
>Be sure to visit the group home and check for new Links, Files, and Photos:
>http://groups.yahoo.com/group/Homebrew_PCBs
>
>If Files or Photos are running short of space, post them here:
>http://groups.yahoo.com/group/Homebrew_PCBs_Archives/
>Yahoo! Groups Links
>
>
>
>
>
>
>

--
Ted Huntington
Programmer Analyst
Langson Library
University of California, Irvine
PO Box 19557
Irvine, CA 92623-9557

Phone Bus Off 949 824 8926
Phone MRC 949 824 1674
emesg: thunting@...
webpage: http://business.lib.uci.edu/webpages/ted.htm
"Stop violence, teach science."



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

> Has anybody ever tried "PCB" for Linux? I wish there was a good open
> source PCB program. Since I had to draw almost all of my components in
> Eagle, I was thinking that I might as well use PCB, but perhaps only

> big boards.
>
> Ted
>
>
> On 6/20/2005 3:06 PM, Phil wrote:
>
> >That does seem like a huge amount of work to avoid paying for
> >something. Much better to modularize your design and do multiple
> >boards if you don't want to pay for it.
> >
> >Me, I paid for eagle and am glad I don't have to deal with that sort
> >of thing.
> >
> >--- In Homebrew_PCBs@yahoogroups.

> ><stefan_trethan@g...> wrote:
> >
> >
> >>On Mon, 20 Jun 2005 08:53:51 +0200, David McNab <david@r...>
> >>wrote:
> >>
> >>
> >>
> >>>Might try that - but there might be some different complications:
> >>> - need for two schematics
> >>> - constraint on the autorouter of having to interface the boards
> >>> through fixed-position pads
> >>>
> >>>
> >>>
> >>What you end up with is a bunch of librarys that are all too small,
> >>
> >>
> >better
> >
> >
> >>get the real version now, if you get it eventually it makes no
> >>
> >>
> >difference.
> >
> >
> >>Also, i dunno about eagle, but i for one am glad i can pester my PCB
> >>software manufacturer with all the problems it has (and there are
> >>
> >>
> >plenty,
> >
> >
> >>sadly..)
> >>
> >>
> >>ST
> >>
> >>
> >
> >
> >
> >
> >Be sure to visit the group home and check for new Links, Files, and

> >http://groups.yahoo.com/group/Homebrew_PCBs
> >
> >If Files or Photos are running short of space, post them here:
> >http://groups.yahoo.com/group/Homebrew_PCBs_Archives/
> >Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
>
> --
> Ted Huntington
> Programmer Analyst
> Langson Library
> University of California, Irvine
> PO Box 19557
> Irvine, CA 92623-9557
>
> Phone Bus Off 949 824 8926
> Phone MRC 949 824 1674
> emesg: thunting@u...
> webpage: http://business.lib.uci.edu/webpages/ted.htm
> "Stop violence, teach science."
>
>
>
> [Non-text portions of this message have been removed]

On 6/20/2005 4:08 PM, Phil wrote:

>Haven't tried it. Have you looked at www.freepcb.com?
>
>--- In Homebrew_PCBs@yahoogroups.com, Ted Huntington <thunting@u...>
>wrote:
>
>
>>Has anybody ever tried "PCB" for Linux? I wish there was a good open
>>source PCB program. Since I had to draw almost all of my components in
>>Eagle, I was thinking that I might as well use PCB, but perhaps only
>>
>>
>for
>
>
>>big boards.
>>
>>Ted
>>
>>
>>On 6/20/2005 3:06 PM, Phil wrote:
>>
>>
>>
>>>That does seem like a huge amount of work to avoid paying for
>>>something. Much better to modularize your design and do multiple
>>>boards if you don't want to pay for it.
>>>
>>>Me, I paid for eagle and am glad I don't have to deal with that sort
>>>of thing.
>>>
>>>--- In Homebrew_PCBs@yahoogroups.
>>>
>>>
>com, "Stefan Trethan"
>
>
>>><stefan_trethan@g...> wrote:
>>>
>>>
>>>
>>>
>>>>On Mon, 20 Jun 2005 08:53:51 +0200, David McNab <david@r...>
>>>>wrote:
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>>Might try that - but there might be some different complications:
>>>>>- need for two schematics
>>>>>- constraint on the autorouter of having to interface the boards
>>>>> through fixed-position pads
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>What you end up with is a bunch of librarys that are all too small,
>>>>
>>>>
>>>>
>>>>
>>>better
>>>
>>>
>>>
>>>
>>>>get the real version now, if you get it eventually it makes no
>>>>
>>>>
>>>>
>>>>
>>>difference.
>>>
>>>
>>>
>>>
>>>>Also, i dunno about eagle, but i for one am glad i can pester my PCB
>>>>software manufacturer with all the problems it has (and there are
>>>>
>>>>
>>>>
>>>>
>>>plenty,
>>>
>>>
>>>
>>>
>>>>sadly..)
>>>>
>>>>
>>>>ST
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>Be sure to visit the group home and check for new Links, Files, and
>>>
>>>
>Photos:
>
>
>>>http://groups.yahoo.com/group/Homebrew_PCBs
>>>
>>>If Files or Photos are running short of space, post them here:
>>>http://groups.yahoo.com/group/Homebrew_PCBs_Archives/
>>>Yahoo! Groups Links
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>--
>>Ted Huntington
>>Programmer Analyst
>>Langson Library
>>University of California, Irvine
>>PO Box 19557
>>Irvine, CA 92623-9557
>>
>>Phone Bus Off 949 824 8926
>>Phone MRC 949 824 1674
>>emesg: thunting@u...
>>webpage: http://business.lib.uci.edu/webpages/ted.htm
>>"Stop violence, teach science."
>>
>>
>>
>>[Non-text portions of this message have been removed]
>>
>>
>
>
>
>
>Be sure to visit the group home and check for new Links, Files, and Photos:
>http://groups.yahoo.com/group/Homebrew_PCBs
>
>If Files or Photos are running short of space, post them here:
>http://groups.yahoo.com/group/Homebrew_PCBs_Archives/
>Yahoo! Groups Links
>
>
>
>
>
>
>
>

--
Ted Huntington
Programmer Analyst
Langson Library
University of California, Irvine
PO Box 19557
Irvine, CA 92623-9557

Phone Bus Off 949 824 8926
Phone MRC 949 824 1674
emesg: thunting@...
webpage: http://business.lib.uci.edu/webpages/ted.htm
"Stop violence, teach science."



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

----- Original Message -----
From: "Ted Huntington" <thunting@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Monday, June 20, 2005 11:28 PM
Subject: Re: [Homebrew_PCBs] Re: bigger boards on Eagle Light


> Has anybody ever tried "PCB" for Linux? I wish there was a good open
> source PCB program. Since I had to draw almost all of my components in
> Eagle, I was thinking that I might as well use PCB, but perhaps only for
> big boards.

I don't use it myself but it has a good reputation, and you will get plenty
of support from other users.

Leon



--
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.323 / Virus Database: 267.7.8/22 - Release Date: 17/06/2005

---
[This E-mail has been scanned for viruses but it is your responsibility
to maintain up to date anti virus software on the device that you are
currently using to read this email. ]

> That looks good, because it is GPL and works in Windows. Maybe I will
> try that when I get some time. Anybody else please report your findings
> on either software programs.
> thanks
> Ted