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Subject: Re: [Homebrew_PCBs] Re: RE : Epson durabrite ink tests - I have ink -no printer...

From: "Stefan Trethan" <stefan_trethan@...>
Date: 2006-04-16

On Sun, 16 Apr 2006 17:03:14 +0200, Leon Heller
<leon.heller@...> wrote:

>> It is kind of funny how some of us refuse to go down the path of
>
>> photosensitive boards (myself being in this category). I don't know
>
>> why, I used have a darkroom and develop photos and such. However,
>
>> using it for PCBs just isn't my "cup of tea" I guess.
>
>
> I don't know why, either. I've dabbled with TT but it just seems too much
> like hard work, whereas photo-etch works every time with the minimum of
> fuss.


Well, i have tried both methods too, and photo etch seems too much like
hard work, whereas TT works every time with the minimum of fuss. ;-)


>> I believe there will be a variety of options for doing double sided
>> with ink jets. It's just a matter of getting things going and seeing
>> how everything works out.
>
>
> I think that the main problem is still going to be the ink. Professional
> systems using ink jet technology use special ink with very expensive
> printheads, with UV curing directly after the ink is deposited. Also,
> double-sided boards will always be problematical with ordinary printers.

Since i have seen just great results from Volkan i'm not that worried that
there is a problem. I did not believe it is possible any time soon before
seeing that, but those photos are clearly superb results and one can see
they are inkjet printed as he says, so that's all the convincing i need.

>
>
> I heard of a new inkjet technology for PCBs on the radio recently that
> uses
> conductive ink which is being developed here in the UK. It's still very
>
> experimental. It's probably similar to this Epson system:
>

That's the next step. Direkt resist printing is halfway there.
I have no doubt it will be a long time before we can print traces, but
just printing and etching is as good as it gets until then.

ST