Homebrew PCBs

Hi Tbone,
put in the developer a unexposured pcb, it may not disolve the resist 
if it dos its to strong 
I think your to short in exposure time or maybe lights to far away-
3 to 4" is normal distance
And be shore that the daylight must be tempered a bit 

please excuse my bad english.

gr. Roel
 
--- In Homebrew_PCBs@yahoogroups.com, "tboneuk_2000" 
<a_reynolds@b...> wrote:
> Hello all,
> Wondering if anyone could point me in the right direction.
> To find the correct exposure time I made up a strip of inkjet
> transparent film with 10 identical dill sockets plus some lines,
> placed this over a strip of "fotoboard 2" board (with glass holding
> it all together) and placed it under a 2* 8W uv light for between 4
> and 13 mins (uncovering each dill socket every minuite). I made up
> the developing solution ratio 10:1, and placed the board in a glass
> dish containg developer.
> After about 1 min I started to see my image appear on the board and
> a bluish residue around the exposed print. This seemed ok but did
> not develop any more as left it in the solution for a couple of more
> mins, then the print slowely started to dissapear to nothing. I
> tried etching anyway but all I got was a nice clean board striped of
> all copper and no tracks/sockets at all.
> At least I know how to etch the board but I am confused why the
> image started to develop and then dissapeared.
> 
> In case it helps I used fotoboard 2, pcb developer and pcb etchent
> from maplins ( the products are made by chiltern and I had a 1:1
> ratio of etchent to water)
> 
> Any help graetfully received
> 
> Kind regards Tbone