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Subject: Re: [Homebrew_PCBs] from Charlie re process you would bet your life on

From: Kerry Wentworth <kwentworth@...>
Date: 2010-08-30

If you use magazine paper, it is basically free to experiment. Magazine
paper works well for me, 8 passes through the laminator. If an attempt
fails, just clean the board and try again. I DO make the occasional
'proof of concept' board for customers, but basically, it is a
hobby. So even the time is free.

Kerry


synchronousmosfet@... wrote:
> Guys, thanks very much, I appreciate the feedback.
>
> I can definitely see some mistakes I've been making with the transfer method...it really surprised me to find out from several of you that 8 passes are sometimes needed, it honestly didn't occur to me that additional passes would make any difference.
>
> I have to make a fundamental decision...whether to try yet again to make the toner transfer method work....I mean, I DO have all the stuff, the special paper, the green film, the laminator, etc., etc., ...and just get CRAZY about cleaning boards, using solvent, doing a zillion passes, etc., and WORKING on the process until I finally get it to work RIGHT....
>
> ....or to go straight to the photoresist method. I realized in writing this I accidentally lied...I had forgotten that even though I did buy an exposure setup and photoresist boards, etc., I never tried using that method...because the cost of those photoresist boards seemed too high to me.
>
> So....go crazy on the toner transfer method until I get it RIGHT, or go with photoresist and accept the higher cost of the boards....
>
> Any consensus on this?
>
> Very Best, Charlie
>



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