Homebrew PCBs

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
>
> On 3/25/2013 4:58 PM, tda7000 wrote:
> >
> > Are you trying to lay the film on all at once? That may be why you are
> > getting bubbles.
> >
> > Start at one edge, holding the other end of the film up and working
> > your way across the board, pushing the film down.
> >
> > The general idea can be seen here:
> > http://www.youtube.com/watch?v=tiBUE-tjwlc (When I tried it this way,
> > I used my fingertip, never tried a card though, but it might work well.)
> >
> > Once you get it all on flat, give it a quick heat with the iron on
> > low. You might want to try leaving the iron off until you get to this
> > point so it doesn't get too hot.
> >
> > Then leave it to cure for 10 minutes or so before you expose it.
> >
> > --- In Homebrew_PCBs@yahoogroups.com 
> <mailto:Homebrew_PCBs%40yahoogroups.com>
> > <mailto:Homebrew_PCBs%40yahoogroups.com>, Hari Hendaryanto
> > <hari.h@...> wrote:
> > >
> > > good day,
> > >
> > > i'm a newbie on photoresist method. i've read homebrew's 
> archives/forum
> > > about how to stick dry film to pcb, all methods involving 
> laminator. is
> > > there some way for me to stick dry film without laminator?. i've tried
> > > without it, just by hand and pressed it with warm iron. the result is
> > > like this one. my exposure time is about 2 - 3 minutes.
> > >
> > > http://img39.imageshack.us/img39/3923/joharbaru2013032300273.jpg
> > >
> > > so many wrinkles here and there. and i have no confidence to 
> develop it
> > > too long, sodium carbonate will dissolve the traces i'm afraid.
> > > if laminator is a must, what kind of laminator should i buy?what
> > kind of
> > > spec? (roller thickness)
> > >
> > > i need many enlightenment here..
> > >
> > > thanks in advance
> > >
> > > regards
> > > hari
> > >
> >
>



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