11.06.2014
This instructable outlines the construction of a double sided UV exposure box using the recent generation of high brightness UV LEDs. Check out more interesting categories: Circuits, Consumer, Design, DIY, Educational, Entertainment, Featured DIYs, Featured Gadgets, Gadgets, Hack, HOWTO, LED, Misc, Projects. I’m really interested in upgrading my two sided exposure box to this kind of solution, but i have a doubt. Has anyone figured out where the Electrolitic capacitor (2200uF and 30v recover) is fitted? Looks like that is the working voltage of the capacitor, of course higher is fine (just not lower).


These LEDs have narrow ray (+-10 degrees), it helps to get sharp shadow on photoresist even if photomask is not cling to the PCB very tight. That transparent box, although cool looking, makes me think you are asking for eye cataract.
Normal glass usually absorbs too much of UV radiation, although I’m not sure if this is a problem around 400nm, or only for shorter wave lengths. It can also be used to make other things such as intricate photo etched parts (a subject for another instructable). After some tests, it worked awsome with Positiv20 as with pre-sensitized PCB boards that i had at home.


Because the current on which these leds( uv ultrbright 7000mcd – 400nm) operate is 20mA at 12V. The trouble is they can be a little pricey for the hobby enthusiast especially if you want the double side type. LEDs mounted close to each other, so it provide well distributed light even with small deepness of box.



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Comments How to make uv led lights uk

  1. Ronaldinio
    Polymerization with just sunlight as opposed to a UV lamp, and therefore.
  2. POLICE
    Welding powder and completely in the first place because the stronger lamps will cure.
  3. NIGHT_HUNTER
    Filament, casting and painting does well with.