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Re: gEDA-user: Origami Flex Circuits Take Shape at All Flex





On Apr 22, 2011, at 9:28 AM, Andrew Miner <zminer@xxxxxxxxx> wrote:

>   /*xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> 
>     I'm going to go out on a limb and state that I refuse to support
>     non-flat layers :-)
> 
>     [1]http://www.allflexinc.com/origamiflex.shtml
>     Supported or not these things are worth taking a look at just for
>     the
>     strangeness if noting else:
>     " Origami Flex Circuits Take Shape at All Flex
> 
>      Ok, that's just too damn cool.  It looks like lots of fun. :)
> 
>   */xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>   There is not much to support, and they are easy to work with.  I worked
>   at a Flexible PCB hose for a couple of years, and all of the ones shown
>   are single or double sided boards.
>   You design it like a normal PCB, other than you make a much more
>   intricate route pattern for the outline layer than a rectangle.
>   You leave areas to make the folds or bends (don't place vias or
>   components in those areas), and then you can crease them after assembly
>   for a tight permanent bend, or leave them as is for an open/close
>   movement (like the display cable on a laptop lid).
>   If you need certain areas of the board to be rigid, you can mount it
>   onto a sheet of Aluminum (adds stiffness and thermal dissipation) or
>   take some FR4 hardboard to make a stiffener that is glued onto a small
>   area (non conductive).
>   Really the only layers you would need to add to your project are:
>   A layer to indicate fold lines for bend locations (if needed)
>   A layer for stiffeners (If needed)
>   A layer for internal cutouts, made moments before the outline route (if
>   needed)
> 
>   The only real challenge is for you to design a 2D object that will bend
>   and flex to fit your 3D application ;-)

Any sheet metal cad package can make your outline and fold bend areas.


>   Andy Miner
> 
> References
> 
>   1. http://www.allflexinc.com/origamiflex.shtml
> 
> 
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