Homebrew PCBs

On Sun, 11 Jun 2017 11:02:25 -0700, you wrote:

>I bought a whack of these:
>
> 
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>http://www.ebay.com/itm/351681662704?_trksid=p2057872.m2749.l2648
><http://www.ebay.com/itm/351681662704?_trksid=p2057872.m2749.l2648&ssPageNam
>e=STRK%3AMEBIDX%3AIT> &ssPageName=STRK%3AMEBIDX%3AIT
>
> 
>
>I don't know how accurate he is on age but if they're even just pre mid-80s
>that should, I hope, yield the right look.  I do a lot of vintage/retro
>recreations and I just *hate* the look of modern PCB stock.  Totally ruins
>it.  If these are actual vintage early-70s I'll be able to make
>reproductions that visually are difficult to discern from original.
>
> 
>
>Only negative is at 0.03 they are half the usual thickness.  I had a crazy
>thought that maybe I could glue/laminate two together?  Is that
>possible/sane?
>

I do that for double sided boards.  You may want to use long setting
(half hour or hour) epoxy depending on how fast you are.  Make sure
your registration holes are EXACTLY aligned since this is critical. If
you use pins to hold them together, then use fat pins that don't
wobble.  You may want to make a fixture for each board from some cheap
wood.  Cover the board with masking tape to prevent epoxy
fingerprints.

Once pinned together and with the glue on, then tape the boards so
they cannot move.  

Let sit for 24 hours between two cheap floor tiles to keep them flat.

Harvey


> 
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>Brad
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>