[Arm-netbook] 15in EOMA-68 laptop

[luke.leighton]

On Sun, Apr 28, 2013 at 2:26 AM, Benson Mitchell
<benson.mitchell+arm-netbook at gmail.com> wrote:
> On Sat, Apr 27, 2013 at 6:58 AM, luke.leighton <luke.leighton at gmail.com> wrote:
>> http://rhombus-tech.net/community_ideas/laptop/layout_isometric.png
>> http://rhombus-tech.net/community_ideas/laptop/layout_plan_view.png
>>
>> ok - with this design concept, where the EOMA-68 card is at the back
>> and is inserted left-right into a location that is approx 10 to 12mm
>> high when the rest of the laptop is only approx 6mm thick, can anyone
>> see a reason why this should result in a laptop with a thickness of
>> greater than 12mm at its highest point?
> Looks good to me -- with one possible, minor issue.
>
> One of the less-obvious issue in laptop design is weight distribution

 yes.  the gpl-violating CT-PC89e was a good one for this.  100g
2000mAh battery at the front did _not_ cut the mustard :)  variants
including one with an RDC100HV had a steel block at the front!

> 1. Make it like a GRiD Compass, with the thick bit for  EOMA-68 &
> various ports _behind_ the hinges.

 the motorola atrix lapdock is like this.

 yes - it's doable.  and also reduces the centre of gravity of the screen.

> Advantages: unusual styling choice (I think it's cool!), can be even
> more stable than regular laptop, easier access to EOMA-68 face ports.

 even top-loading ports.  hmmmm.

> Disadvantages: unusual styling choice (some will think ugly), limits
> total screen opening.

 true.  is that bad?

> 2. Add more battery, at the cost of making it a little thicker.
> Advantages: More battery life!
> Disadvantages: Thicker, heavier.

 not necessarily.  bear in mind this is li-ion:
 http://www.eemb.com/Li-Polymer_battery/Li-Polymer-Standard_Version.html

 2nd one from the bottom, specs:

 * 3800mAh
 * dimension 3.7 x 100mm x 122mm
 * weight 80g (ridiculous....)

now, bear in mind that eemb can make a battery of any size, so those
are just guides, ok?

but you could put 3 batteries like that, right at the front, 3 cell
3800mAh giving 11 volts.  42 Watt-Hours.

with the screen being around 7 watts (max) and EOMA-68 being 3.5
(roughly), other bits and pieces ... maybe 3 watts (USBs, SSD etc.)
then flat-out you'd be around say 15 watts.

 make for about 2.8 hours at 100% CPU load and 100% duty cycle on a
15in screen... with 3 batteries only 3.7mm thick.  taking up a hell of
a lot of space, mind, but hell it's empty space anyway, might as well
fill it with something.

l.