Re: [Homebrew_PCBs] Re: General Home-Brew CuCl chemistry and technique
2005-08-22 by Adam Seychell
... Another possible place to get %10 H2O2 is a hairdressers supplier. I think the one near me sold it up to 18%. Anyone had problems with this stiff
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Re: General Home-Brew CuCl chemistry and technique
2005-08-22 by Phil
it views fine on several other PCs (not black at all). Yeah, its big, guess I could reduce it. ... make it
Re: [Homebrew_PCBs] Re: General Home-Brew CuCl chemistry and technique
2005-08-22 by JanRwl@AOL.COM
In a message dated 8/21/2005 7:18:58 P.M. Central Daylight Time, phil1960us@yahoo.com writes: Here s a picture of my tank with AP in it. HUGE, virtually
Re: General Home-Brew CuCl chemistry and technique
2005-08-22 by Phil
... you get ... Warmed to use?? ... time ? ... I ve purchased it from CSI mail order for $18. http://www.circuitspecialists.com/prod.itml/icOid/2825 I got my
Re: [Homebrew_PCBs] Re: General Home-Brew CuCl chemistry and technique
2005-08-21 by Stefan Trethan
On Sun, 21 Aug 2005 22:10:56 +0200, lcdpublishing ... often the drug store stuff is only 3%, you want around 30% or you add too much water. ... Around 30% is a
Re: General Home-Brew CuCl chemistry and technique
2005-08-21 by Phil
You can get 30% HCL cheap - home depot. its used for acid rinse on masonary. The H2O2 from the drug store (3%) isn t strong enough except perhaps for the
Re: [Homebrew_PCBs] Re: General Home-Brew CuCl chemistry and technique
2005-08-21 by JanRwl@AOL.COM
In a message dated 8/21/2005 12:42:51 P.M. Central Daylight Time, phil1960us@yahoo.com writes: If you can use FeCl, you can use AP. OK, Phil; I m open to
Re: General Home-Brew CuCl chemistry and technique
2005-08-21 by lcdpublishing
Okay, starting to make some sense. But, finding and buying chemicals isn t the easiest thing to do these days. So, a couple of follow up questions.....
Re: [Homebrew_PCBs] Re: General Home-Brew CuCl chemistry and technique
2005-08-21 by Stefan Trethan
... I d say it s definitely easier! I mean i can t bake a cake, maybe some shortbread but that s about it.... well... maybe with a manual.. ST
Re: General Home-Brew CuCl chemistry and technique
2005-08-21 by Phil
... I don t think it really needs that much chemistry background and is about at the level of complexity of baking a cake from scratch. However, It s just not
Re: [Homebrew_PCBs] General Home-Brew CuCl chemistry and technique
2005-08-21 by Stefan Trethan
... not really. As said, i only do the molarity check every few months when i feel like it, cause i just add stuff by color and etching speed. I don t
Re: [Homebrew_PCBs] General Home-Brew CuCl chemistry and technique
2005-08-21 by JanRwl@AOL.COM
Thanks. MUCH too complex for a non-Chem.E. !!! [Non-text portions of this message have been removed]
Re: [Homebrew_PCBs] General Home-Brew CuCl chemistry and technique
2005-08-21 by JanRwl@AOL.COM
Ich bedanke mich! Mal schauen . . . [Non-text portions of this message have been removed]
Re: RE : [Homebrew_PCBs] how to protect against oxydation
2005-08-20 by Stefan Trethan
On Sat, 20 Aug 2005 18:10:41 +0200, Robert Hedan ... cool stuff ;-) Guess it will be pricey. Must check if it contains any really nasty chemicals. Oh by the
RE : [Homebrew_PCBs] how to protect against oxydation
2005-08-20 by Robert Hedan
Close, silver. More details in the PDF found on the site. Robert ... Cool-Amp #1233-500 Cool-Amp was originally developed to protect copper/brass and bronze
Re: [Homebrew_PCBs] General Home-Brew CuCl chemistry and technique
2005-08-20 by Adam Seychell
... correction: high CuCl concentration is only required for method 2).
Re: [Homebrew_PCBs] General Home-Brew CuCl chemistry and technique
2005-08-20 by Adam Seychell
... There s two main approaches to chloride etching chemistry. 1) CuCl2 + HCl + H2O2 2) CuCl2 + HCl + O2 Method 1)is much faster than 2). I use 2) at room
Re: [Homebrew_PCBs] General Home-Brew CuCl chemistry and technique
2005-08-20 by Stefan Trethan
... I ll try. Let s divide that into 3 parts: Etching boards, maintainance, and first brewing of CuCl. For normal etching, you d need to do nothing much.
Re: [Homebrew_PCBs] how to protect against oxydation
2005-08-20 by Stefan Trethan
... what is cool amp? electroless tin? ST
General Home-Brew CuCl chemistry and technique
2005-08-20 by JanRwl@AOL.COM
Can someone here PLEASE outline the procedure and chemistry to use for this etch-method? I have never seen ANYWHERE a list like, 1. Boil the bare blank in
how to protect against oxydation
2005-08-19 by ybarre1961
I used liquid tin but I don t like it, what about cool amp? thanks
Re: Tinning boards using WS Plumber's solder paste
2005-08-17 by derekhawkins
... Paste with an acidic flux isn t a problem for tinning. Zinc Chloride can be washed off a board the same way Ferric Chloride can after etching. But for SMD
Re: [Homebrew_PCBs] Tinning boards using WS Plumber's solder paste
2005-08-17 by Stefan Trethan
I ve looked at a few pastes, and they all said must be cleaned after soldering with damp rag. So i reckon the flux is a no-go for SMD work. I don t consider it
Re: Tinning boards using WS Plumber's solder paste
2005-08-17 by derekhawkins
... You can get lead-free plumber s solder paste. You can also get it with non-acidic flux. Just buy the one you want. ... I ve been using the same jar for
Re: [Homebrew_PCBs] Tinning boards using WS Plumber's solder paste
2005-08-17 by Roy J. Tellason
... Oh, that s okay, I finally did get the whole thing loaded here. And found out about the smaller sizes... :-)
RE : [Homebrew_PCBs] Tinning boards using WS Plumber's solder paste
2005-08-17 by Robert Hedan
Roy, Pic has been reduced and uploaded into Files section. Robert ... De : Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] De la part de
New file uploaded to Homebrew_PCBs
2005-08-17 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 :
Re: [Homebrew_PCBs] Tinning boards using WS Plumber's solder paste
2005-08-17 by Stefan Trethan
On Wed, 17 Aug 2005 19:54:00 +0200, Roy J. Tellason ... I don t think it is a problem for tinning the board. There seem to be many electroless and
Re: [Homebrew_PCBs] Tinning boards using WS Plumber's solder paste
2005-08-17 by Roy J. Tellason
... Interesting pic, that s _still_ loading on this dialup connection. Must be pretty big! ... I was of the impression from earlier posts in this thread that
Tinning boards using WS Plumber's solder paste
2005-08-17 by derekhawkins
... The reason for thinning is not to prevent solder forming where there is no copper. You thin to get an even layer of paste without ridges or brush marks
Re: wave soldering machines - would they tin a board?
2005-08-17 by Bob_xyz
How much are you thinning the solder paste before you paint it on? It sounds like you re really thinning it down quite a bit. Regards, Bob ... of ... copper
RE : [Homebrew_PCBs] Green Paint ?
2005-08-16 by Robert Hedan
This? Testors - 1601 Trans. Candy Green 3 Oz. Spray Can http://www.testors.com/catalog_item.asp?itemNbr=1404 Robert ... De : Homebrew_PCBs@yahoogroups.com
Re: [Homebrew_PCBs] Re: wave soldering machines - would they tin a board?
2005-08-16 by Stefan Trethan
On Tue, 16 Aug 2005 17:13:31 +0200, derekhawkins ... it s certainly cheaper than SMD paste, and it is leadfree so i don t worry about
Re: wave soldering machines - would they tin a board?
2005-08-16 by derekhawkins
... Not certain, have to check.
Re: wave soldering machines - would they tin a board?
2005-08-16 by derekhawkins
... This is not an issue. Just paint the whole board with a thin layer of the stuff. The tiny beads of solder that form where there is no copper will wash off
Re: [Homebrew_PCBs] Re: wave soldering machines - would they tin a board?
2005-08-16 by Stefan Trethan
On Tue, 16 Aug 2005 16:00:17 +0200, derekhawkins ... as long as the flux is not a problem.... any idea what it is? ST
Re: wave soldering machines - would they tin a board?
2005-08-16 by derekhawkins
... No, photoresist. Stopped using TT around 5 years ago. ... This is what I use; http://www.mcmaster.com/ (Part # 7683A3) I ve never used it for SMD work but
Re: wave soldering machines - would they tin a board?
2005-08-16 by dsv1486
Man that is a great board, just a couple of questions: was that using toner transfer? where do you get the solder paste at a industrial plb supply?? ... board
[Homebrew_PCBs] Green Paint ?
2005-08-16 by Terry Mickelson
Some time ago there was a description of a green paint for use on printed circuit boards. This paint is applied after a board is drilled and burns off when
Re: [Homebrew_PCBs] Re: wave soldering machines - would they tin a board?
2005-08-16 by Stefan Trethan
On Tue, 16 Aug 2005 06:45:23 +0200, Dave Hylands ... nah there s stuff now that is much the same, for plumbing, with solder in it. ST
Re: [Homebrew_PCBs] Re: wave soldering machines - would they tin a board?
2005-08-16 by Dave Hylands
Hi Bob, ... I m familiar with the solder paste used for surface mount soldering. So far, all of the references to plumbers solder paste are referring to a
Re: wave soldering machines - would they tin a board?
2005-08-16 by Bob_xyz
Solder paste consists solder, in the form of tiny spheres, suspended in a semi-liquid flux paste. Heating drives off the flux and melts the solder onto the
Re: wave soldering machines - would they tin a board?
2005-08-16 by Phil
I think it does from the description. I wonder if you can reflow with it (i.e. no solder mask needed?). worth a try.
Re: [Homebrew_PCBs] Re: wave soldering machines - would they tin a board?
2005-08-16 by Dave Hylands
Hi Derek, ... So does the soldering paste you re talking about have solder in it? Or is it just the flux? -- Dave Hylands Vancouver, BC, Canada
Re: [Homebrew_PCBs] Re: wave soldering machines - would they tin a board?
2005-08-16 by pebo festus
hey--thanks derek,just what i was looking for. didnt know there was that kind of solder. ill get some and try it. mebo ...
Re: wave soldering machines - would they tin a board?
2005-08-15 by dsv1486
Man that is a great board, just a couple of questions: was that using toner transfer? where do you get the solder paste at a industrial plb supply?? ... board
Re: [Homebrew_PCBs] Re: wave soldering machines - would they tin a board?
2005-08-15 by Stefan Trethan
On Mon, 15 Aug 2005 22:11:39 +0200, derekhawkins ... good idea! What i tried a while back is painting the board with flux and
Re: [Homebrew_PCBs] Re: wave soldering machines - would they tin a board?
2005-08-15 by Stefan Trethan
... i suspect the same. i do not like anything with thiourea for health reasons so electroless is out. thanks ST
Re: wave soldering machines - would they tin a board?
2005-08-15 by derekhawkins
... My tinning method - paint on solder paste then use hot air gun. High grade water soluble plumber s solder paste is fairly cheap and works very well. It
Re: wave soldering machines - would they tin a board?
2005-08-15 by Bob_xyz