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Card Tearing


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Just wondering, does anyone know the 'force' value required for card tearing?

I know that it must vary based upon the type of card (thickness; slickness; length of card; etc).

It must also vary based upon a tear in the width or a card or the length of a card.

Any ideas? Has anything ever been published or documented?

All I know is, I'm not there yet! :angry::angry::blush

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I have no clue how one would even build a device to measure how much force it takes.


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Whatever the force required to tear them is, you will find that holding them securely throughout the tear is much more difficult than generating the tearing force. The tearing force comes from the wrists. Holding the cards securely is all hands.

Mike M.

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