I would be interested in seeing your process for double sided pcb's

I have also tried many ways too.  Some successful and some not.

I have never successfully made a pcb using the photo sensitive process, I just never get the timing right.

I have had good to ok success using a LaserJet printer, mirror the image, print it on the thinnest and smoothest paper we could find or use the plastic sheets they started to sell.  Iron it on to the copper board with a with a clothes iron, then soak the paper in water to peel it off, thus leaving only the toner.  I would then drill two reference holes and repeat the same process for the other side. Then use Ferric Chloride for etching.

I have had good success, but very tedious work using the rub-on dry transfer method
drilling two reference holes and repeating the process for the other side. Then use Ferric Chloride for etching.

My latest achievement was using a LPKF  or T-tech milling machine.  Once again, I would drill reference holes and flip the board over and mill the other side.

The easiest way was to work for a company that can afford to send the boards out to be manufactured.  I have done 6 layer boards this way.







-----Original Message-----
From: Mike Harrison [mailto:mike@WHITEWING.CO.UK]
Sent: Friday, June 20, 2003 12:01 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [PIC]: [EE] My solution - for double side pcb production


On Fri, 20 Jun 2003 21:56:13 +0300, you wrote:

>Hi 2 All
>
>Several months ago I asked about how to produce a double side pcb. the
>answers I got where unsatisfactory to say the least.
>
>So I thought to look again at the internet but with no luck. most of the
>home-made 2 side pcb solutions I read about were not accurate enough IMHO.
>
>Now I have my solution and it's very simple and anybody can build it easily
>from things that he can find at home.
>
>It's very accurate (if you follow the instructions) and results are superb!
>
>For now I am not going to write a tutorial with my poor English, so I
>decided to take some pictures of the building process and send it to anyone
>who desires to build one.
>
>If you are interested send me off-list and I will send it over as soon I
>finish taking pictures.
I just line up the 2 artwork layers on a lightbox and staple them together to form an envelope -dead
easy.

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