Homebrew PCBs

Great progress!

Always leave a small piece of aluminum foil in the excess margin if possible
to get a reference of guaranteed no exposure.   I used to have a step wedge
with the foil permanent attached at one end  and then included the step
wedge in the exposures.

Bertho

 

From: Hari Hendaryanto   Sent: Sunday, April 07, 2013 22:27



hey guys,
i finally can get my clumsy old hand doing phoresist thing :)) ( from 
laminate until etching). not perfect, but it's the best pcb i've ever 
had, need a little touch up, but i think that's because the opacity of 
negative film i used.

http://img33.imageshack.us/img33/7764/tebet2013040800294.jpg

thanks for all your times and helps guys

regards

hari

On 4/1/2013 6:45 PM, Hari Hendaryanto wrote:
>
> i'm sorry for late reply, i got my mails end up in spam filter, i've
> just noticed and released it. sounds like another solution for me, and
> thanks for that :), i was trying james sugestion and have an adequate
> results. i'm getting better with this thing :). i'll take a look on the
> video.
>
> anyway, i saw some dry film not rolled/curled back (stay flat). i was
> using dry film that rolled back after cut. that was a problem too,
> especially when separating thin plastic part from polymer (i used tape
> on both corner side). but i think i just have to make more practice..
>
> thanks for all your supports guys :)
>
> regards
> hari





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