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PCB housing

Discussion in 'General Electronics' started by ?ine Canby, Aug 3, 2004.

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  1. ?ine Canby

    ?ine Canby Guest

    Hi all,

    I'm a student and I've built a number of PCB boards, and I'd now like
    to house them within some kind of box. My boards do some signal
    processing, and BNC connectors are included so that I can input and
    output signals to and from my circuits - I'll obviosly have to drill
    holes in the box in order to do this. I also have a PSU which I want
    to include within the box - it connects to mains. The main PCB is 8 *
    6 inches, the power supply is about 3 * 3 * 3 inches.

    Anyway, I'm not sure where to start with this and I'm hoping some one
    can give me an idea of whats involved . I'm in Scotland and I buy
    using Farnell -

    but I'm not ever sure as to what sections I should be looking under.
    I'd like the box to look somewhat perfesionsal - for presentation

    I hope you can get me started.


  2. KevinR

    KevinR Guest

    You want to be looking under Enclosures. Which, for some strange
    reason, Farnell keeps in the Electrical & Electronics section

    Good looking enclosures tend to be a little more expensive.

    If you have to machine the front panel by hand, then you might want to
    look out for aluminium or plastic rather than steel.

    Front panel legends look good done in a cad package, then photoshopped
    and printed up on a colour inkjet printer, then coated with self
    adhesive clear laminate, Ideally the stuff with the matt finish.

    Put a couple of layers of laminate on the back of the legend (for
    strength) and you can even put push button switches behind it and make
    your own switch membrane.

    One thing which tends to look a little unprofessional is nuts holding
    pot and switches and LED clips. try and put controls on a PCB just
    behind the front panel. you can secure this PCB to the front panel
    using countersunk screws, the heads of which will be hidden by your
    fancy custom made legend. Make sure you secure the screws to the front
    panel with a nut so you don't have to remove the legend to unbolt the
    controll panel PCB.

    Kevin R
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