[Arm-netbook] Interchangeable screen

[GaCuest]

En 17 de septiembre de 2015 en 17:21:12, Luke Kenneth Casson Leighton (lkcl at lkcl.net) escrito:
> On Thu, Sep 17, 2015 at 4:12 PM, GaCuest wrote:
>  
> > Perhaps the best solution is to use neodymium magnets and screws. So any user can be safe  
> with its screen. An advanced user who often changes the screen can always remove the screws  
> and only use neodymium magnets.
>  
> i think you'll find that even an advanced user may consider that they
> could conceivably drop the unit. if there was some sort of plastic
> "lock" so that it was impossible for the screen module to drop out
> without extreme force, then you would be fine.
>  
> i think you should do some calculations to see what kind of strength
> magnet would be needed to provide "anti-shock" level of attraction,
> based on the weight of the components. i see "150 G" shock-force on
> hard drives, normally, so that i assume would be a good number to
> start from.
>  
> so now you would need to check the weight of the LCD plus its case
> and PCB, then see what size neodymium magnet *at each corner* would be
> sufficient to provide 150 gravities (10Nm) of attractive force.
> that's 1500 Nm. i think you'll find that the magnets needed are far
> bigger than you imagine might be needed.
> 

The heaviest screen we would use weighs 66 grams.

> l.
>