Homebrew PCBs

I just drilled two holes for registration, removed burrs and applied the 
second side, etching both at once.

Andrew wrote:
>> fredbutz wrote:
>>
>> I've been using the laser printer method and
>> ironing the transfers on to single sided
>> boards with no problem.
>>
>> But now I want to do a double sided board.
>>
>> Does anyone have any suggestions for lining
>> the sides up?
>>
>> I'm lucky if I can get a single sided board
>> to be square, normally things are slightly
>> cocky.
>>
>>     
>
> Many many moons ago when I did punish myself
> with toner transfer I did double sided as
> such.
>
> Transfer Toner to one side of board only
> spray a good coat of varnish on back side
> spray a good coat of varnish on the back side
>     of the PCB as well (Sorry could not resist
>     that joke)
> Etch the first side
> Remove varnish and toner
> Drill 2 registration holes
> Line up 2nd transfer paper with drill holes
> apply heat/iron/laminator to transfer toner
> Spray varnish on already etched side
> Etch second side
> Strip again
>
> It's not fast but it got everything lined up
> nice.
>
>
>
>
>
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