Homebrew_PCBs

Hi all.

I recently saw a few articles on using UV leds to expose photoresist
type boards and have to admit, I have tried various methods and am going
to try this one. I also did a quick search in this list archives before
starting this thread.

I was wondering in one could concentrate the UV light from a LED via a
lens like in the laser pointers and create a pin point uv light. Then,
in making a CNC type machine (yes I belong to the cnc groups as well)
use this method to simply draw the tracks onto the board directly. One
would have to create a test run every sop often but I wouldn't mind
seeing anyone elses posts if they have tried this.

Peter





CHECKOUT my experience with my lack of help from I-MATE in regards to my
JASJAR at www.gizmoman.net/i-mate.htm

For a list of current designs, projects and engineering tasks as well as
radio's, electronics, gadgets and gizmo's for sale visit http://www.gizmoman.net

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That's an interesting idea...

You can only focus UV light just as much as you can focus visible light, but there are cheap lasers that emit light in the UV range. I believe the lasers used in DVD players emit light in the UV range, but don't quote me on that.

Paul Symansky
SymTech Labs, Sr. Project Coordinator
(954) 478-7285
http://www.symtechlabs.com
paul.symansky@...

----- Original Message -----
From: Peter May
To: homebrew_pcbs@yahoogroups.com
Sent: Saturday, November 18, 2006 9:24 PM
Subject: [Homebrew_PCBs] CNC and UV leds


Hi all.

I recently saw a few articles on using UV leds to expose photoresist
type boards and have to admit, I have tried various methods and am going
to try this one. I also did a quick search in this list archives before
starting this thread.

I was wondering in one could concentrate the UV light from a LED via a
lens like in the laser pointers and create a pin point uv light. Then,
in making a CNC type machine (yes I belong to the cnc groups as well)
use this method to simply draw the tracks onto the board directly. One
would have to create a test run every sop often but I wouldn't mind
seeing anyone elses posts if they have tried this.

Peter

CHECKOUT my experience with my lack of help from I-MATE in regards to my
JASJAR at www.gizmoman.net/i-mate.htm

For a list of current designs, projects and engineering tasks as well as
radio's, electronics, gadgets and gizmo's for sale visit http://www.gizmoman.net

This email has been addressed to homebrew_pcbs@yahoogroups.com and sent from
Peter May peter@.... Please notify sentspam@...
if you feel this message is SPAM.





[Non-text portions of this message have been removed]

I am wanting to try it. Will order a uv led next couple of days and try
some expsures etc. I saw the article on the UV Led light box in an
English mag and thats where I came up with the idea. May be simply able
to place in a tube and use a hole at the end with a pin hole.

For me, I have no time limit so if it did it over night, I would be
happy....

Regards, Peter

_____

From: Homebrew_PCBs@yahoogroups.com
[mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of Paul Symansky
Sent: Monday, November 20, 2006 11:56 AM
To: Homebrew_PCBs@yahoogroups.com
Subject: Re: [Homebrew_PCBs] CNC and UV leds



That's an interesting idea...

You can only focus UV light just as much as you can focus visible light,
but there are cheap lasers that emit light in the UV range. I believe
the lasers used in DVD players emit light in the UV range, but don't
quote me on that.

Paul Symansky
SymTech Labs, Sr. Project Coordinator
(954) 478-7285
http://www.symtechlabs.com <http://www.symtechlabs.com>
paul.symansky@... <mailto:paul.symansky%40symtechlabs.com>

----- Original Message -----
From: Peter May
To: homebrew_pcbs@yahoogroups.com
<mailto:homebrew_pcbs%40yahoogroups.com>
Sent: Saturday, November 18, 2006 9:24 PM
Subject: [Homebrew_PCBs] CNC and UV leds

Hi all.

I recently saw a few articles on using UV leds to expose photoresist
type boards and have to admit, I have tried various methods and am going
to try this one. I also did a quick search in this list archives before
starting this thread.

I was wondering in one could concentrate the UV light from a LED via a
lens like in the laser pointers and create a pin point uv light. Then,
in making a CNC type machine (yes I belong to the cnc groups as well)
use this method to simply draw the tracks onto the board directly. One
would have to create a test run every sop often but I wouldn't mind
seeing anyone elses posts if they have tried this.

Peter

CHECKOUT my experience with my lack of help from I-MATE in regards to my
JASJAR at www.gizmoman.net/i-mate.htm

For a list of current designs, projects and engineering tasks as well as
radio's, electronics, gadgets and gizmo's for sale visit
http://www.gizmoman.net <http://www.gizmoman.net>

This email has been addressed to homebrew_pcbs@yahoogroups.com
<mailto:homebrew_pcbs%40yahoogroups.com> and sent from
Peter May peter@... <mailto:peter%40gizmoman.net> . Please
notify sentspam@... <mailto:sentspam%40gizmoman.net>
if you feel this message is SPAM.

[Non-text portions of this message have been removed]





For a list of current designs, projects and engineering tasks as well as
radio's, electronics, gadgets and gizmo's for sale visit http://www.gizmoman.net

This email has been addressed to Homebrew_PCBs@yahoogroups.com and sent from
Peter May peter@.... Please notify sentspam@...
if you feel this message is SPAM.




[Non-text portions of this message have been removed]

There's an idea. Use a laser plotter to burn the resist, rather than mill
around the traces. Or burn the traces, and plate before chemical etching.
Alas, I don't have a laser engraver on hand to try.

----- Original Message -----
From: "Peter May" <peter@...>
To: <homebrew_pcbs@yahoogroups.com>
Sent: Saturday, November 18, 2006 8:24 PM
Subject: [Homebrew_PCBs] CNC and UV leds


> Hi all.
>
> I recently saw a few articles on using UV leds to expose photoresist
> type boards and have to admit, I have tried various methods and am going
> to try this one. I also did a quick search in this list archives before
> starting this thread.
>
> I was wondering in one could concentrate the UV light from a LED via a
> lens like in the laser pointers and create a pin point uv light. Then,
> in making a CNC type machine (yes I belong to the cnc groups as well)
> use this method to simply draw the tracks onto the board directly. One
> would have to create a test run every sop often but I wouldn't mind
> seeing anyone elses posts if they have tried this.
>
> Peter
>
>
>
>
>
> CHECKOUT my experience with my lack of help from I-MATE in regards to my
> JASJAR at www.gizmoman.net/i-mate.htm
>
> For a list of current designs, projects and engineering tasks as well as
> radio's, electronics, gadgets and gizmo's for sale visit
> http://www.gizmoman.net
>
> This email has been addressed to homebrew_pcbs@yahoogroups.com and sent
> from
> Peter May peter@.... Please notify sentspam@...
> if you feel this message is SPAM.
>
>
>
>
>
> Be sure to visit the group home and check for new Links, Files, and
> Photos:
> http://groups.yahoo.com/group/Homebrew_PCBs
>
> If Files or Photos are running short of space, post them here:
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> Yahoo! Groups Links
>
>
>
>