Homebrew PCBs

On 25/03/13 15:33, Hari Hendaryanto 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
>


In my (limited) experience, get a laminator.  The results from the 
non-laminator methods have not been good for me, and they are tricky.

A laminator is the best way, and I find that making a simple carrier out 
of a thin piece of card, and a couple of "end stops" made out of 
popsicle sticks (sanded down so they are a little thinner than the PCB) 
makes it much easier and more reliable to get a "perfect" lamination.

Pretty much any laminator will do.  The film needs only a moderate heat.

If you want to try no-laminator methods anyway, here are two

   1. apply film manually, careful to avoid bubbles and wrinkles, sit on 
top of an iron to heat the entire board (I guess, film side away from 
the iron)
   2. the hot water method, briefly, pour hot water over PCB, remove 
bottom layer from film, lie the top of the film against a damp squeegee 
board, re-wet the pcb with hot water, squeegee the film on, allow to 
cool, search the archives there is a link to it (you'll have to accept 
the warnings from Chrome about it being a possibly malware loaded site, 
it's just a harmless PDF).


Remember, it doesn't actually require a lot of heat, well less than 
100'C, I think it's about 50'C to 70'C.


> 



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