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Date:	Thu, 24 Sep 2015 23:04:53 -0400
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Subject:	Re: [geda-user] Off topic (UV printer)
From:	"Stan Katz (stan DOT katz DOT hk AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
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Please be aware that the acronym dlp is also used by hobbyists for "direct
laser printing". That involves tearing into a laser printer, replacing the
red laser with a blue one, reworking the printer to accept flat pcbs
Like this:
http://hackaday.com/2012/08/09/exposing-pcbs-with-a-home-made-laser-printer/

I'm referring to using the multi-mirror DLP ic by Texas Instruments that
used to be used in TVs. The company in the following link uses the TI DLP
chip to print directly, by projection. No chopping up of an office laser
printer is required. You'll need good knowledge of optics to get this
working, but I consider this the best way to go.
https://www.youtube.com/watch?v=heUPV0aci5c

On Thu, Sep 24, 2015 at 5:57 PM, Nicklas Karlsson (
nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com] <
geda-user AT delorie DOT com> wrote:

> > I would just Google some terms like < diy dlp photoresist > etc. There
> are
> > a lot of homebrewers who have harvested dlp modules from old projector
> TVs
> > and are trying to duplicate, or come close to the results of professional
> > dlp direct printing uv photoresist exposure systems. Although, I must
> > admit, I haven't come across a successful diy dlp hack in my internet
> > search. Maybe you're the one to succeed.
>
> "professional dlp direct printing uv photoresist exposure systems"
>
> I guessed someone else had done before. Now I know I am on the correct
> track, that's exactly what I was looking for. I will look for something old
> and keep for the simpler circuits.
>

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<div dir=3D"ltr">Please be aware that the acronym dlp is also used by hobby=
ists for &quot;direct laser printing&quot;. That involves tearing into a la=
ser printer, replacing the red laser with a blue one, reworking the printer=
 to accept flat pcbs<div>Like this:</div><div><a href=3D"http://hackaday.co=
m/2012/08/09/exposing-pcbs-with-a-home-made-laser-printer/">http://hackaday=
.com/2012/08/09/exposing-pcbs-with-a-home-made-laser-printer/</a></div><div=
><br></div><div>I&#39;m referring to using the multi-mirror DLP ic by Texas=
 Instruments that used to be used in TVs. The company in the following link=
 uses the TI DLP chip to print directly, by projection. No chopping up of a=
n office laser printer is required. You&#39;ll need good knowledge of optic=
s to get this working, but I consider this the best way to go.<br><div><a h=
ref=3D"https://www.youtube.com/watch?v=3DheUPV0aci5c">https://www.youtube.c=
om/watch?v=3DheUPV0aci5c</a><br></div></div></div><div class=3D"gmail_extra=
"><br><div class=3D"gmail_quote">On Thu, Sep 24, 2015 at 5:57 PM, Nicklas K=
arlsson (<a href=3D"mailto:nicklas DOT karlsson17 AT gmail DOT com">nicklas.karlsson17=
@gmail.com</a>) [via <a href=3D"mailto:geda-user AT delorie DOT com">geda-user AT del=
orie.com</a>] <span dir=3D"ltr">&lt;<a href=3D"mailto:geda-user AT delorie DOT com=
" target=3D"_blank">geda-user AT delorie DOT com</a>&gt;</span> wrote:<br><blockqu=
ote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc s=
olid;padding-left:1ex"><span class=3D"">&gt; I would just Google some terms=
 like &lt; diy dlp photoresist &gt; etc. There are<br>
&gt; a lot of homebrewers who have harvested dlp modules from old projector=
 TVs<br>
&gt; and are trying to duplicate, or come close to the results of professio=
nal<br>
&gt; dlp direct printing uv photoresist exposure systems. Although, I must<=
br>
&gt; admit, I haven&#39;t come across a successful diy dlp hack in my inter=
net<br>
&gt; search. Maybe you&#39;re the one to succeed.<br>
<br>
&quot;professional dlp direct printing uv photoresist exposure systems&quot=
;<br>
<br>
</span>I guessed someone else had done before. Now I know I am on the corre=
ct track, that&#39;s exactly what I was looking for. I will look for someth=
ing old and keep for the simpler circuits.<br>
</blockquote></div><br></div>

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