Re: [Homebrew_PCBs] Re: Tin salts
2003-11-13 by mpdickens
... The Metal Finishing Guidebook lists three formulations for immersion deposits of tin onto copper, only one formula is cyanide-free. Here is that formula:
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Re: Tin salts
2003-11-13 by dombaines
Ah... Sorry, Not trying to make it... Got to sort out a hazard assesment of I want to use it. Etch... that s easy it s FeCl in Water... So what is in a simple
Re: [Homebrew_PCBs] Tin salts
2003-11-13 by Ted Huntington
I bought some of this but have not tried it yet. Does it work? thanks Ted ... -- Ted Huntington Programmer Analyst I Main Library University of California,
Re: [Homebrew_PCBs] Tin salts
2003-11-13 by mpdickens
You can purchase this stuff at any decent supply house. It s dirt cheap and would cost you more to make it than it would to buy it. One Online site where you
Tin salts
2003-11-13 by dombaines
What are the tin salts used when tin plating... i.e. what is the chemiscal involved in a hot solution 50 C disolved tin salt? Regards,. Dom
New file uploaded to Homebrew_PCBs
2003-11-12 by Homebrew_PCBs@yahoogroups.com
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the Homebrew_PCBs group. File : /Homemade
Re: [Homebrew_PCBs] Re: pvc hot air welding
2003-11-12 by Adam Seychell
... yea, same with me. ... Thats simialr size to mine. For the narrow tanks I m going for 5.5 x 35 cm base and 30 cm high (internal sizes). Liquid depth is 25
Re: [Homebrew_PCBs] Re: DATAK negative Resist
2003-11-12 by Zoran A. Scepanovic
Hello mpdickens, Wednesday, November 12, 2003, 5:40:56 AM, you wrote: m I use quantity-4, 8-watt black lights. They emit UV m radiation around 325 to
Re: DATAK negative Resist
2003-11-12 by crankorgan
Eric, Be sure to shake the can before you spray! John ... somewhat ... just ... with. ... nicer
Re: [Homebrew_PCBs] Re: DATAK negative Resist
2003-11-12 by mpdickens
... Ammonia is a degrease. I used to use it, but the fumes are enough to cause insanity. So, I switched to alcohol for decreasing. Also, I use denatured
Re: [Homebrew_PCBs] How to handle Ferric Chloride safely and in environmental...
2003-11-12 by JanRwl@AOL.COM
In a message dated 11/11/2003 5:54:38 PM Central Standard Time, suri_list@yahoo.com writes: after i have used it for etching a board how can i dispose it
Re: DIY Bending Brake
2003-11-12 by Steve
I was just thinking that the bending brake would also make scoring and breaking PCBs much easier. Steve
Re: DATAK negative Resist
2003-11-12 by ednspace
Oh, and I should mention that the page I have been following is: http://www.pic101.com/pcb it is excellent and where I got the idea for the makeup swabs and
Re: DATAK negative Resist
2003-11-12 by ednspace
... using ... illumination ... Hey Stuart, Yes this is going out! Sounds like it may be part if not the whole problem. I am going to back the light out or
Re: DATAK negative Resist
2003-11-12 by ednspace
Hello there Marvin, ... I am scrubbing with ajax right now with bleach and a new scotch bright. This was my first thought too, but I think the boards are
Re: DATAK negative Resist
2003-11-12 by ednspace
Hello there Marvin, ... I am scrubbing with ajax right now with bleach and a new scotch bright. This was my first thought too, but I think the boards are
Re: DATAK negative Resist
2003-11-12 by ednspace
... Yes, I am. They work well and seam to leave no fibre behind, like a tightly woven q-tip. I can get good coverage with no waste and even pull any tiny
How to handle Ferric Chloride safely and in environmentally safe manner?
2003-11-11 by suri_list
hello kindly explain how can i handle ferric chloride safely. and after i have used it for etching a board how can i dispose it safely so that it doesnt hurt
Re: [Homebrew_PCBs] Re: DATAK negative Resist
2003-11-11 by mpdickens
More than likely, there is a film on the board and the resist is not bonding to the board. Probably, it s whatever your using to clean it with. I use comet or
Re: DATAK negative Resist
2003-11-11 by Steve
... The photoflood is going to be optimized for balanced visible light. The growlite will be optimized for more UV light, which plants need to grow. I used a
Re: DATAK negative Resist
2003-11-11 by ednspace
... with ... Thanks for the reply Bob, Could be part of the problem, I started with a standard sort of Grow- lite by GE but did not know how much if any UV was
Re: DATAK negative Resist
2003-11-11 by Steve
Many years ago I made a bunch of boards using Datak Negative resist, sprayed it on with a pump sprayer. Do you mean you paint it on with those very soft fine
Re: [Homebrew_PCBs] DATAK negative Resist
2003-11-11 by Stuart Winsor
In article , ... I have to say I haven t used this particular product but when I was using some spray-on resist it had to be done in a
Re: DATAK negative Resist
2003-11-11 by Bob
Does Datak mention anything about using a sunlamp ...something with some UV spectrum in it? That s what I used in a silk screen method with photo-emulsion and
DATAK negative Resist
2003-11-11 by ednspace
Hello, This is a plea for help! I am on my 5th trial with this and while each trial improves somewhat in end quality, and certainly in the process, (no longer
Useful or Spam? Re: Win a free Schmartboard Electronic Protoboard Combo Pack
2003-11-11 by Dave Mucha
... Hi Neil, I missed your response ! I m glad you did reply. Dave
Re: [Homebrew_PCBs] UK PCB Board supplier
2003-11-11 by JanRwl@AOL.COM
In a message dated 11/10/2003 3:44:15 AM Central Standard Time, dombaines@mmbq.demon.co.uk writes: Maplin and RS are expensive... Is there a cheaper supplier
Useful or Spam? Re: Win a free Schmartboard Electronic Protoboard Combo Pack
2003-11-11 by Neal Greenberg
Guys: I did respond last time...see post 2906. I m sorry if you consider this Spam...I will not post anything else on this. I m just trying to give away some
more spam ------ free Schmartboard Electronic Protoboard Combo Pack
2003-11-11 by Dave Mucha
IIRC, last month, when this guy posted, he did not stick around to answer questions.
Useful or Spam? Re: Win a free Schmartboard Electronic Protoboard Combo Pack
2003-11-11 by Steve
How long did it take last time for this guy to respond? As I recall he gave kind of evasive answers or none at all to some questions. For instance, I remember
Re: [Homebrew_PCBs] UK PCB Board supplier
2003-11-10 by Terry Owens
http://www.users.zetnet.co.uk/esr/products4.html http://www.techsoftuk.co.uk/page52.htm http://www.electrotek-pcb.co.uk/ These are just three of the ones
Win a free Schmartboard Electronic Protoboard Combo Pack
2003-11-10 by Neal Greenberg
I thought this might be of interest to this group Hello Electronics Enthusiast!!! Schmartboard is proud to announce a contest to win one of fifteen(15)
UK PCB Board supplier
2003-11-10 by dombaines
Where can I get maybe a lot of 20 or so PCB s boards mixed single and.or double sided up to 500mm x 250mm for use in home etching for projects? I will
UK PCB Board supplier
2003-11-10 by dombaines
Where can I get maybe a lot of 20 or so PCB s boards mixed single and.or double sided up to 500mm x 250mm for use in home etching for projects? I will
Re: Boxes for our PCBs?
2003-11-10 by dombaines
... shack. ... I use old PC metal cases. As soon a a PC is upgraded at work the old case is thrown, along most of it s contents. I scrounge some of the PSU s
Ferric Chloride life
2003-11-09 by Moore
Been using the same 17 fl ounces of etchant for 5 boards, roungly 45 sq inches. 1/2 10z copper the other 2 oz copper. Thought the last two took a little long
Re: DIY Bending Brake
2003-11-09 by Moore
I can t view the first gif, the second is ok. Phil
Re: [Homebrew_PCBs] Boxes for our PCBs?
2003-11-08 by Alan King
... http://www.interq.or.jp/japan/se-inoue/e_acryl.htm http://www.mini-lathe.com/Bending_fixture/bending_fixture.htm Hunted up the links I had for homemade
Re: DIY Bending Brake
2003-11-08 by Steve
Very clear, I thought. Very simple and easy to build. Thanks! I converted them to GIF and put them in their own folder. A request to everyone- if you are
New file uploaded to Homebrew_PCBs
2003-11-08 by Homebrew_PCBs@yahoogroups.com
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the Homebrew_PCBs group. File : /Bend
New file uploaded to Homebrew_PCBs
2003-11-08 by Homebrew_PCBs@yahoogroups.com
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the Homebrew_PCBs group. File : /Bend
Re: Sources for HCl
2003-11-08 by Steve
... find ... Go to the Homebrew_PCBs group page and click on Links , then Acid Etching Tips and Suppliers . The link itself is too long, and you have to be
DIY Bending Brake
2003-11-08 by grantfair2001
I uploaded 2 files to the files section, Brake 1.bmp and Brake 2.bmp. These can be viewed with the MS Paint program. My brake is about 18 wide. I assume
Re: Sources for HCl
2003-11-08 by Dave Mucha
... Links on ... I find ... Visit the website instead of the e-mail version of the list. http://groups.yahoo.com/group/Homebrew_PCBs/ then go to the links
Re: [Homebrew_PCBs] Re: Sources for HCl
2003-11-08 by Stuart Winsor
In article , ... Sorry for my ignorance Steve but being a newbie around here how do I find this? Stuart. -- __ __ __ __ __ ___
Re: Sources for HCl
2003-11-08 by Steve
These and many more links can be yours, just for visiting the Links on the list! Just pull back the curtain on Acid etching tips and suppliers ! OK, it s
Re: Boxes for our PCBs?
2003-11-08 by Steve
While I wouldn t like to see a long discussion of the merits of cabinet punches, I -would- like to see this posted in Files and/or Links. After all, the first
Re: Boxes for our PCBs?
2003-11-08 by Steve
Yeah! I ve been collecting things from toy store closeouts and thrift stores to be made into sci fi props and for test equipment enclosures. Folding travel
Re: Boxes for our PCBs?
2003-11-08 by Steve
Aluminum boxes? Even better, I chuck a stub of a pencil with one of those replacement erasers on it in a drill press. Then with the drill on slow or medium
Re: [Homebrew_PCBs] Sources for HCl
2003-11-07 by Stuart Winsor
In article , ... Couldn t get anywhere with that link I m afraid. My browser tried and after a long time gave up. I ll