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> DIY membrane switch
sae
Posted: January 20, 2007 06:49 pm
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Has anyone here attempted to make their own membrane switch?

I want to make a switch that is shaped like a donut, outside diameter is going to be 13.5" and inside diameter will be about 13" I am looking for some guidance on how to construct this. Any help would be much appreciated.
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tekwiz
Posted: January 20, 2007 08:05 pm
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Most membrane switches are nothing more than patterns etched on a circuit board, with a conductive pad fastened to the membrane directly above. Pads can be salvaged from old phones & calculators, & boards are easy to etch. Junk a few devices containing MSs & see how they work; save the pads. cool.gif


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For to you, kings & armies are things mighty & enduring.
To him, mere toys of the moment, to be overturned at the flick of a finger.

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sae
Posted: January 24, 2007 07:52 pm
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Thanks alot. Some aluminum foil and some cardboard did the trick for me.
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tekwiz
Posted: January 24, 2007 08:00 pm
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Good! I guess your application was a bit less critical than I had thought. cool.gif


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Trouble rather the tiger in his lair, than the sage among his books.
For to you, kings & armies are things mighty & enduring.
To him, mere toys of the moment, to be overturned at the flick of a finger.

Fortuna favet fortibus.
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