Hacked Gadgets Forum

February 15, 2007

Turn a Scanner into a Printed Circuit Board UV Lamp

at 10:41 am. Filed under DIY Hacks, Electronic Hacks

If you are wanting to make circuit boards using the UV exposure method you may want to recycle an old scanner into your UV light source.

“I opted for 3 tubes (around 8 Euro each), with ballasts and starters (6/7 Euro for each set). The switch, fuse holder and mains socket I scavenged from somewhere.
For the bottom plane I used a tin sheet. This acts as a sort of mirror/diffuser for UVs.
I used also some scrap aluminum bars from kitchen furnitures, their colour in the pictures tell it. Spacers and screws as required.

Now, the pictures show the electric diagram and the interior of the UV bed.
The circuit is based on three TL5 8W wood light tubes. Each tube is powered by its own ballast and starter . The number of tubes can be increased at will. The circuit is provided with a safety fuse and a power switch. A power socket (taken from a PC power supply) complements the circuit.”

Via: Make


 

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6 Responses to “Turn a Scanner into a Printed Circuit Board UV Lamp”

  1. univac Says:

    This would also work for doing photo screen printing image transfers! Neat!

  2. Randy Says:

    Damm, why didn’t I think of this. And I was going to build a UV exposure box from scratch, basically out of wooden/masinite. I would like to know how I can obtain information on how I can get an old scanner, because most scanners do not really provide a deep enough area to implement such parts inside, or have enough room. I want to know what models to look for on the net in case I don’t find any in my local junkyards, thrift shops, or the trash. Thanks alot.

  3. Abdullah Eyles Says:

    Great! I was wondering what to do with the old HP Scanjet that cost me £600 many years ago! Also considered producing PCB’s by this method but haven’t had the time recently. Now I think I’ll start again, thanks to your idea!

    Would also make a nice lightbox for sorting negatives or slides using white tubes… The uses are endless!

  4. John Says:

    Hi Alan

    My name is John and I am just wondering what brand and model of scanner was used for this project, thanks.

  5. Alan Parekh Says:

    Hi John,

    Doesn’t look like it says. There is a link to the Instructables article in the article, you could ask there if you wanted. I shouldn’t matter though.

  6. Fuming Solder Says:

    It actually looks like there should be some kind of a light-scattering material between the glass and the tubes for more uniform exposure.

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