| Author |
Message |
:-)
Guest
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 Posted:
Tue Nov 01, 2005 8:17 am Post subject:
From breadboard to ... |
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There it is, my marvellous hardware application works fine on a
breadboard :-)
It is a 25 TTL LS type ICs with some stip connector and 5v power supply.
It isn't a high freq application.
Next step is now how do I produce 2 of them. I'm a pour guy :-( without
experience into board fabrication ...
So I was thinking maybe wirewrap or something like that ...
Someones can suggest me ideas on on that or others methods, pros and
cons, cost, durability etc ...
Tutorial also welcome :-)
JC :-)
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CWatters
Guest
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| Posted:
Tue Nov 01, 2005 5:35 pm Post subject:
Re: From breadboard to ... |
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"James T. White" <SPAMjtwhiteGUARD@hal-pc.org> wrote in message
news:436765fd$0$10629$a726171b@news.hal-pc.org...
| Quote: | "CWatters" <colin.watters@pandoraBOX.be> wrote in message
news:RiJ9f.36552$wW.1503296@phobos.telenet-ops.be...
":-)" <a@b.c> wrote in message
news:JeA9f.67672$7z1.988651@wagner.videotron.net...
Next step is now how do I produce 2 of them. I'm a pour guy :-(
without
experience into board fabrication ...
There are lots of PCB fab houses that will do you a double sided PCB for
very little money. You should be able to get three single Euro card size
PCB
(160mm x 100) quite cheaply.
This place has a very simple to use cad program linked to their fab
process
(only their process)...
http://www.expresspcb.com/ExpressPCBHtm/Download.htm
If you can live with 160mm x 100mm board size, you can get a copy of Eagle
for
free (http://www.cadsoftusa.com/) and use any board house you desire.
|
Yes Egale is good. I've also got that.
I used ExpressPCB some years ago and found it ideal for novices who know
little or nothing about PCB layout. Experts would have found it too
restrictive. Might have changed by now though. |
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CWatters
Guest
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| Posted:
Tue Nov 01, 2005 5:35 pm Post subject:
Re: From breadboard to ... |
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":-)" <a@b.c> wrote in message
news:JeA9f.67672$7z1.988651@wagner.videotron.net...
| Quote: | Next step is now how do I produce 2 of them. I'm a pour guy :-( without
experience into board fabrication ...
|
There are lots of PCB fab houses that will do you a double sided PCB for
very little money. You should be able to get three single Euro card size PCB
(160mm x 100) quite cheaply.
This place has a very simple to use cad program linked to their fab process
(only their process)...
http://www.expresspcb.com/ExpressPCBHtm/Download.htm
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James T. White
Guest
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| Posted:
Tue Nov 01, 2005 5:35 pm Post subject:
Re: From breadboard to ... |
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"CWatters" <colin.watters@pandoraBOX.be> wrote in message
news:RiJ9f.36552$wW.1503296@phobos.telenet-ops.be...
| Quote: |
":-)" <a@b.c> wrote in message
news:JeA9f.67672$7z1.988651@wagner.videotron.net...
Next step is now how do I produce 2 of them. I'm a pour guy :-( without
experience into board fabrication ...
There are lots of PCB fab houses that will do you a double sided PCB for
very little money. You should be able to get three single Euro card size PCB
(160mm x 100) quite cheaply.
This place has a very simple to use cad program linked to their fab process
(only their process)...
http://www.expresspcb.com/ExpressPCBHtm/Download.htm
|
If you can live with 160mm x 100mm board size, you can get a copy of Eagle for
free (http://www.cadsoftusa.com/) and use any board house you desire.
Also, you might take a look at some simple CPLD or FPGA devices to take the
place of most if not all of those 25 LSTTL parts.
--
James T. White |
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:-)
Guest
|
| Posted:
Wed Nov 02, 2005 12:28 am Post subject:
Re: From breadboard to ... |
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CWatters wrote:
| Quote: | "James T. White" <SPAMjtwhiteGUARD@hal-pc.org> wrote in message
news:436765fd$0$10629$a726171b@news.hal-pc.org...
"CWatters" <colin.watters@pandoraBOX.be> wrote in message
news:RiJ9f.36552$wW.1503296@phobos.telenet-ops.be...
":-)" <a@b.c> wrote in message
news:JeA9f.67672$7z1.988651@wagner.videotron.net...
Next step is now how do I produce 2 of them. I'm a pour guy :-(
without
experience into board fabrication ...
There are lots of PCB fab houses that will do you a double sided PCB for
very little money. You should be able to get three single Euro card size
PCB
(160mm x 100) quite cheaply.
This place has a very simple to use cad program linked to their fab
process
(only their process)...
http://www.expresspcb.com/ExpressPCBHtm/Download.htm
If you can live with 160mm x 100mm board size, you can get a copy of Eagle
for
free (http://www.cadsoftusa.com/) and use any board house you desire.
Yes Egale is good. I've also got that.
I used ExpressPCB some years ago and found it ideal for novices who know
little or nothing about PCB layout. Experts would have found it too
restrictive. Might have changed by now though.
|
Thanks all. I will take a look at thoses.
On the other side is wirewrap still a solution for a prototype ?
Is there some free CPLD or FPGA software around too ?
Thanks :-) |
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John Fields
Guest
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| Posted:
Wed Nov 02, 2005 1:23 am Post subject:
Re: From breadboard to ... |
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On Tue, 01 Nov 2005 13:28:12 -0500, ":-)" <a@b.c> wrote:
| Quote: | Thanks all. I will take a look at thoses.
On the other side is wirewrap still a solution for a prototype ?
|
---
Yes. Even with the perpetually falling cost of PCB's, I find that
wire-wrapping a breadboard/prototype is a cost-effective way to get
from schematic to 1st cut hardware. There's also the added benefit
that if it works when it's wire-wrapped, It'll also work 99+% of the
time when it's translated to a PCB.
---
| Quote: | Is there some free CPLD or FPGA software around too ?
|
---
Dunno, don't care.
Google is your friend.
--
John Fields
Professional Circuit Designer |
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JeffM
Guest
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:-)
Guest
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| Posted:
Wed Nov 02, 2005 9:35 am Post subject:
Re: From breadboard to ... |
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| Thanks :-) |
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JeffM
Guest
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CWatters
Guest
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| Posted:
Thu Nov 03, 2005 1:35 am Post subject:
Re: From breadboard to ... |
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":-)" <a@b.c> wrote in message
news:YsO9f.85257$7z1.1415838@wagner.videotron.net...
| Quote: | On the other side is wirewrap still a solution for a prototype ?
|
Yes but it depends how you value your time. How much would you pay for
several days off work? |
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:-)
Guest
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| Posted:
Thu Nov 03, 2005 8:51 am Post subject:
Re: From breadboard to ... |
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CWatters wrote:
| Quote: | ":-)" <a@b.c> wrote in message
news:YsO9f.85257$7z1.1415838@wagner.videotron.net...
On the other side is wirewrap still a solution for a prototype ?
Yes but it depends how you value your time. How much would you pay for
several days off work?
|
I begin to think really to go with a pcb when ready instead . It will
pay itself with the saving building time ...
By what if I can reduce the number of ICs, by using PLD maybe, it could
be still a good easy solution ....
I'll see ;-) |
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Jon Elson
Guest
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| Posted:
Sat Nov 05, 2005 1:35 am Post subject:
Re: From breadboard to ... |
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:-) wrote:
| Quote: | CWatters wrote:
":-)" <a@b.c> wrote in message
news:YsO9f.85257$7z1.1415838@wagner.videotron.net...
On the other side is wirewrap still a solution for a prototype ?
Yes but it depends how you value your time. How much would you pay for
several days off work?
I begin to think really to go with a pcb when ready instead . It
will pay itself with the saving building time ...
|
This is VERY true. It also eliminates errors that the hand
wire-wrapping could introduce.
| Quote: |
By what if I can reduce the number of ICs, by using PLD maybe, it
could be still a good easy solution ....
|
Yes, a 1-chip FPGA implementation is another way to go. Or, the
Xilinx 95xx series of CPLD. The larger of these might be able to fit
your entire 25-chip LSTTL design into one $20 part.
Jon |
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Jon Elson
Guest
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| Posted:
Sat Nov 05, 2005 1:35 am Post subject:
Re: From breadboard to ... |
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John Fields wrote:
| Quote: | On Tue, 01 Nov 2005 13:28:12 -0500, ":-)" <a@b.c> wrote:
Thanks all. I will take a look at thoses.
On the other side is wirewrap still a solution for a prototype ?
---
Yes. Even with the perpetually falling cost of PCB's, I find that
wire-wrapping a breadboard/prototype is a cost-effective way to get
from schematic to 1st cut hardware. There's also the added benefit
that if it works when it's wire-wrapped, It'll also work 99+% of the
time when it's translated to a PCB.
Also, making changes to a wire-wrap board is a lot easier than hacking |
traces
on a prototype PCB.
Jon |
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Jon Elson
Guest
|
| Posted:
Sat Nov 05, 2005 1:35 am Post subject:
Re: From breadboard to ... |
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:-) wrote:
| Quote: |
There it is, my marvellous hardware application works fine on a
breadboard :-)
It is a 25 TTL LS type ICs with some stip connector and 5v power supply.
It isn't a high freq application.
Next step is now how do I produce 2 of them. I'm a pour guy :-(
without experience into board fabrication ...
So I was thinking maybe wirewrap or something like that ...
|
Whew, this is really "old school"! I used to do a lot of wirewrap of
systems smaller
and MUCH larger than this. I'm glad those days are past! Nowadays the
preferred
design methodology is to use ONE FPGA chip to replace up to hundreds of
SSI-MSI
chips.
But, if you REALLY will only ever need two units, wire wrap of the
design might
be pretty cost effective. If you will need a few more in the future, a
PCB design
might be a lot better choice. A 2-layer board should suffice fine if it
works on a
breadboard. Others have already commented on cost-effective ways to make
protoytype quantities of boards cheaply.
If you have to go out and buy a wire wrap gun, a kit of pre-cut wire,
and 50 assorted
wire wrap sockets plus the perf boards, that could cost as much or more
than a cheap
PCB run at one of the low-cost shops!
| Quote: |
Someones can suggest me ideas on on that or others methods, pros and
cons, cost, durability etc ...
Tutorial also welcome :-)
|
Wire-wrap, done with professional tools, is plenty reliable. Some
wire-wrap gear I
built 25 years ago is still running perfectly. Stay away from the obsolete
Slit-n-Wrap gimmick, as the insulation is VERY easily cut when dragged
around
corners, and the shorts are IMPOSSIBLE to find.
Jon |
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James Douglas
Guest
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| Posted:
Wed Nov 23, 2005 5:35 pm Post subject:
Re: From breadboard to ... |
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Although a novice I purchased PCB Wizard and found it great, tried the
eagle and others and thought I don't have time to learn all the features
they offer.
I have created numerous project boards in the garage, and some of them
actually work!
:-) wrote:
| Quote: |
There it is, my marvellous hardware application works fine on a
breadboard :-)
It is a 25 TTL LS type ICs with some stip connector and 5v power supply.
It isn't a high freq application.
Next step is now how do I produce 2 of them. I'm a pour guy :-( without
experience into board fabrication ...
So I was thinking maybe wirewrap or something like that ...
Someones can suggest me ideas on on that or others methods, pros and
cons, cost, durability etc ...
Tutorial also welcome :-)
JC :-) |
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