Screen flex

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Saml01 · #1 Post by **Saml01** » Fri Sep 01, 2006 9:27 am

Do all of your X60's have screen flex? If the screen is open 90 degrees and you hold it by the top corners and flex it does it have a lot of play in it?

Also I noticed that when the notebook is closed it doesnt close completely. There is about a 1mm or so gap on each side of the machine. So when you press down on the top corners of the screen with the screen closed there is still some room to go down.

Am I the only one?

Maybe im just nitpicking like crazy.

snife · #2 Post by **snife** » Fri Sep 01, 2006 11:17 am

your nitpicking - its normal - there is only so much you can do to make such a thin screen rigid.

mfratt · #3 Post by **mfratt** » Fri Sep 01, 2006 11:47 am

Yes, every screen is going to do this unless you use something like 1/2" thick steel (still maybe). This screen has a lot less play than ano other ive used.

lucas · #4 Post by **lucas** » Fri Sep 01, 2006 2:52 pm

i was impressed by the rigidity of the screen. (sony's, among others, flex like mad)

#5 Post by **jdhurst** » Fri Sep 01, 2006 3:03 pm

You're dealing with Physics here. Even a closed "T" will flex as a unit somewhat, whereas a thicker machine (like the old chunky 380D) will barely flex at all. Flex may be related to a homogenous material (like the half-inch steel plate referred to) or a combination of materials (like a whole ThinkPad). Even a T23 (smaller area than a T4x) will not flex much, whereas my T40 flexes (whole machine) more than any other ThinkPad I have owned. It is also larger in area than any other.

BTW, there are two bridges side by side over a 12 lane highway in Toronto. They are steel-beam bridges with concrete decks. If two large trucks hit the bridges at the same time from opposite directions, the combined flex in the bridges is over 1 foot. If you are sitting on the bridge in a car waiting to turn left, the car will be bouncing at an incredible rate. This is also why trains get slow orders over weak bridges (to prevent the vibration and flex).

... JD Hurst

trentblase · #6 Post by **trentblase** » Fri Sep 01, 2006 9:08 pm

Yeah, the golden gate bridge is designed to flex 10 feet under high load. It also swings 27 feet due to wind.

In many material engineering decisions, if didn't have flex, you'd probably have break. I would recommend not holding your laptop by the corners of the screen

Screen flex

Screen flex

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