Homebrew PCBs

Does this mean that making a quality SMD PCB is possible?

Mike


--- In Homebrew_PCBs@yahoogroups.com, "Thomas P. Gootee" <tomg@f...> 
wrote:
> Don,
> 
> I have recently updated my webpage on the toner transfer procedure:
> 
> The results seem to be basically PERFECT, EVERY TIME, now.  And 
it's extremely quick, and easy.
> 
> I give VERY detailed step-by-instructions for the complete 
procedure, plus the exact paper type and its source (only $0.33 per 
sheet!), etc.
> 
> I've also posted PHOTOS of an example board that I made, showing 
the paper pattern and the pcboard at various stages during and after 
the process. 
> 
> The example board includes trace widths from almost 1/2 inch (12.7 
mm) down to around 2/300ths (0.0067) inch (0.17 mm), with between-
trace spacings down to about 0.0067 inch, although I think that the 
smallest trace-width that's actually shown in the photos is 4/300ths 
(0.0133) inch (about 0.34 mm).  
> 
> I haven't tried making any traces or spacings that are smaller than 
2/300ths of an inch, yet.  But the 2/300ths-inch traces and spaces 
that I HAVE tried were absolutely no problem at all. And the results 
look excellent.  (Even the little "o" characters that are part of the 
%-signs that are etched out of copper in very small 4-point text come 
out perfect. And their line/space features are even smaller than my 
smallest trace-widths and spacings.)
> 
> I've made at least 20 boards this way, so far, with NO bad boards.
> 
> The PCB-making-procedure webpage is at:
> 
> ----------------------------------------------------
> 
> http://www.fullnet.com/u/tomg/gooteepc.htm
> 
> ----------------------------------------------------
> 
> OT:  If anyone wants any 1-sided boards made, from **BITMAP-type** 
patterns that could be emailed (or mailed), my teenage son is 
thinking of using my method to start a small business, making pcbs, 
probably for about $15 or $20 for a board that's up to about 4x6 
inches, with that price including the drilling of up to a couple 
hundred holes AND applying the silkscreen artwork (your greyscale or 
bitmap image) to the component side. Turnaround time would probably 
be zero to one day.  He's been making boards for ME, and is very good 
at it. (And I would supervise.)  If anyone's interested, or has any 
questions, just email me (Tom) at tomg@f... .
> 
> Regards,
> 
> Tom Gootee
> 
> http://www.fullnet.com/u/tomg
> 
> -----------------------------------
> 
>   ----- Original Message -----
> 	Message: 5
> 	   Date: Wed, 30 Jun 2004 23:18:46 +1000
> 	   From: "Don Bradbury" <don282@d...>
> 	Subject: Re: SCOTCH  8007
> 	
> 	Hi Bill, many thanks for the reply I think I am to basic with 
my needs for most people on this board. I don't make 	enough boards 
these days to get to the level of the others and I don't like the 
toner transfer system I find it is to 	uncertain for what I need it 
for (10 GHz boards $1.45 sq.inch) but the same situation exists here 
I have a number of 	sq ft. of negative board and I don't know if 
it will still work either.
> 
> [Non-text portions of this message have been removed]