>Nope. Plastic card (credit card thickness, or less) with
>pencil-sized holes in it. The "reader" is a matrix of electrical
>contacts. You shove the card in it, it insulates the non-punched
>contacts. Simple!
>
>Alas, hard to reproduce the cards automatically. Easy with a hand
>punch though.
What about with a drill press?
You could bundle the card on top of a stack of cardboard cards (or
plastic, or whatever you are reproducing onto). Clamp them all together,
and then use a drill press to line up exactly on top of the original card
hole, and drill down thru the stack of reproduction cards.
Just an idea.
-chris
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Received on Mon Feb 14 2005 - 11:38:21 GMT