Hello,
With the "JetStar Premium film", I do not have to buy photosensitive
boards? Can I make the photosensitive boards from normal boards using this?
The photo pcb's are pretty expensive. Would be cool if this is a cheaper
option.
Thanks
Joe
On Sun, Feb 19, 2012 at 1:00 PM, Harvey White <madyn@...> wrote:
> ∗∗
>
>
> On Sun, 19 Feb 2012 16:11:21 +0000, you wrote:
>
> >On 19/02/2012 15:57, Harvey White wrote:
> >
> >>
> >> For the quantities of board I use, if I had access to good
> >> photosensitive board in the sizes I need, I'd use it. That is, if it
> >> were cheap enough. I can get (locally) single sided 0.23 inch PCB
> >> which is ideal for making double sided boards. For some reason, I
> >> seem to make double sided more than single sided.
> >>
> >
> >Nearly all mine are single-sided.
>
> I do things like LCD display drivers, microprocessor boards, stepper
> driver boards, sensor interface boards, etc. Not a lot of analog
> wiring, mostly digital.
>
> I dislike jumpers, so the effort of making a separate layer is often
> worth the added step. Since my main techniques involve thin board
> epoxied together to make a dual sided board, I effectively make two
> boards to get one, but I can remake the "bad" one easily.
>
> Last run was 10 board sides, two stepper motor drivers, breakout board
> for a PCB drill, back panel for same, and a power distribution board.
> You pays your money.... etc.
>
> >
> >> My problems in photoetch are not the developer, nor the exposure (made
> >> a vacuum frame and use an enlarger timer), but the density of the
> >> positive. Neither the laser nor the inkjet seem to do quite a good
> >> enough job so far. Exposure therefore is tricky. I do miss kodalith
> >> a lot.
> >
> >As I've said several times, I get excellent positive transparencies with
> >a cheap HP 9540 inkjet printer and JetStar Premium film.
>
> I'll have to try that, and see if JetStar Premium is available here.
> That's when I start in with the photoetch, of course.
>
> Thanks.
>
> Harvey
>
> >
> >Leon
>
>
>
[Non-text portions of this message have been removed]