Comments on: Printed circuit board etching

By: Mitchell

Mitchell — Thu, 19 May 2011 18:18:58 +0000

Super cool, I use http://www.customcircuitboards.com/ for my PCBs!

By: pcb

pcb — Sat, 24 Jul 2010 08:58:33 +0000

As somewhat of an amateur pcb maker myself I thought I’d throw out a couple of tips I’ve come by. First is that a heat laminator is invaluable in getting your toner transfer to work nearly perfect. I tried for years with an iron before picking up a used lamination machine and bieng struck by the difference. The second is don’t waste money buying special paper to do the transfer. I spent alot of money buying various inkjet papers over the years. The absolute best paper I’ve found for making pcb’s I get for free. The mailman leaves a quantity of it in my mailbox almost daily. Those glossy looking advertisements are a far superior transfer to any inkjet paper you can buy and they scrub off easier too.

By: Tultilliall

Tultilliall — Sat, 17 Apr 2010 02:39:31 +0000

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Just looking around and thought I`d say hi. My name is melissa. I hope to meet all new people.

Kindest,
Tultilliall
Or, Melissa

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By: mini glass bubblers

mini glass bubblers — Sat, 27 Jun 2009 21:03:26 +0000

Similar post I found some other places . Here I want to talking about some bubbler. Some quality bubbler just placing my link with this

By: kookimebux

kookimebux — Sun, 01 Feb 2009 16:01:24 +0000

Hello. And Bye. :)

By: MelvinXH

MelvinXH — Thu, 18 Dec 2008 00:25:46 +0000

Hi just off subject . just wanna ask anyone know what is the best company provide good identity theft protection out there ?

By: james

james — Fri, 12 Dec 2008 05:23:19 +0000

hey davy (above), Right idea, wrong kind of printer. Epson is the only consumer grade (possibly only) printer that uses an electro-static um uhh... here's a web site.

By: Whenserce

Whenserce — Sun, 07 Dec 2008 10:23:03 +0000

chi conosce msn discovery?Ho come antivirus Avast home versione 4.8.1292,credo di essermi registrato verso Settembre 2007,poi siccome ho dovuto riformattare il Pc 2 volte ho reinstallato sempre lo stesso Antivirus e sempre l’ho registrato con la stessa chiave di licenza.Ora mi domando ma la licenza vale 14 mesi da quando ne ho fatto richiesta la 1 volta oppure ogni volta che ho reinserito la chiave si ?? come dire rinnovato il periodo di validit??’? poi quando scade ti avvisano loro o devo richiedere io la nuova chiave di licenza? ‘C?? un modo per sapere la scadenza precisa della licenza oppure no? Perch?? se clicco sulla pallina di Avast e clicco sulla voce Riguardo avast mi dice solo Scadenza aggiornamenti lunedi 1 Dicembre 2008 0.00.00,grazie per l’aiuto.Ho provato anche a richiedere il numero della licenza,ma mi hanno spedito solo la chiave senza data di registrazione e scadenza.

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By: luteragzfer

luteragzfer — Thu, 27 Nov 2008 12:36:40 +0000

Mike Mossberg, I know you reading this forum, please contact me, because I can’t find your contact details.

By: mishgan

mishgan — Sun, 07 Sep 2008 13:20:56 +0000

By: Davy

Davy — Thu, 16 Feb 2006 19:09:16 +0000

I use the Press n’ Peel transfer paper never tried inkjet paper. I hit on an idea the other day whilst orinting a CD on the Canon ip5000 — the ol’ marbles started ratlin’ what if I thought, if I replaced the CD with a PCB, when I get round to it I’ll give it a try.

Ok, Ok we all don’t want a round PCB including me, just a slight alteration to the software, mechansim maybe and then we’ll worry about the ink standing up to a bath..

By: Rolan yang

Rolan yang — Wed, 15 Feb 2006 23:01:38 +0000

A solution of cupric chloride and muriatic acid can be used to etch boards. The best part about using this method is that bubbling air through the solution (and adding more water when necessary) regenerates its ablity to etch. No more pouring used etchant down the toilet!

Search the web for articles on the chemical reaction.

Here are some pics on my site:

http://photo.omnistep.com/cucl2/

~Rolan

By: Gordonwong

Gordonwong — Tue, 07 Feb 2006 04:52:41 +0000

I spent many years trying various things:

litho film, photoresist, toner transfer via label backing paper, ferric chloride, ammonium persulfate etc.

Here’s what really works every time. It took took me 25 years to find this out:

Print image reversed on plain paper with a laser printer. Iron candle wax into it to make it translucent. Expose onto a photoresist coated board. I use two UV flouresents in a twin-tube desk lamp at 4″ for 5 minutes under picture frame glass.

Etch with 3/4 12% hydrogen peroxide (hairdressing supply) and 1/4 muriatic acid (hardware store). Keep it moving. And do it outside. The solution makes its own heat (no heaters, no sprayers or bubblers) and the etch is done in 3.2 minutes flat! You can SEE the progress unlike ferric chloride. Neutralize afterwards with baking soda.

You could use drugstore 3% peroxide but it’s a six minute etch instead of three minutes.

Cost: 1 litre 12% peroxide was $5, 1 litre muriatic acid was $4. Good for dozens of etches – make a new batch every time.

If you do this quite often, better not to dump the resultant copper chloride into the environment. Save in a plastic bottle after neutralizing, label it and drop it to the hazdardous waste facility in your area.

By: kyle

kyle — Sun, 01 Jan 2006 22:06:07 +0000

i totally agree, im so impatient that i often find myself browsing radioshack’s sorry ass selection because i dont want to wait a week to get my parts. i like this method because its fast.

By: justin

justin — Sat, 31 Dec 2005 02:44:30 +0000

Regarding #13 and #14.

Another reason to do it yourself is the quickness. Sure getting 5 boards for 65 bux sounds ok, but are you willing to wait a week for them, and then maybe find out that you missed a pad or two? This way makes it easy to make a couple in one afternoon, and see any mistakes youve made over the way.