Hans-Christian Jehg | 24 Jul 23:19 2015
Picon

Re: 15.6in laptop progress


>On Thu, Jul 23, 2015 at 9:03 PM, Philip Hands <phil <at> hands.com> wrote:
>
>>> then i began work on the friction hinge for the screen lid, so that
>it
>>> will remain upright.  you'd think it would be easy to create an
>>
>> Nope ;-)
>
> you'd be right!
>
>> You could just not bother with a lock.
>
> yehhh the friction hinge isn't accurate enough, there's a few degrees
>of play and that means the lid will be flapping by about... at least 1
>maybe even 2cm once wear sets in.
>
>> I have a Lenovo Thinkpad X230, and it has no lock on the lid.
>>
>> There is a slight impression that the lid snaps shut when almost
>closed,
>> but it's not clear if that's really the case.
>>
>> You could alternatively do some sort of rotating thing on the
>corners,
>> like the OLPC's wifi arials.
>

Magnet(s) to hold the lid closed?

(Continue reading)

Picon

15.6in laptop progress

is there no end to the detail that's needed??

okaay so i started on the screen edge, which (surprise) turned out to
need to be thicker than anticipated.  increasing the thickness by 2mm
had a knock-on effect because, naturally, the base end depth has to be
increased to match.

then i began work on the friction hinge for the screen lid, so that it
will remain upright.  you'd think it would be easy to create an
interlock between two pieces 8mm in diameter that looks aesthetic and
is strong enough, but nooo i can tell you it damn well isn't :)

now i am onto one of the final pieces of the puzzle: creating a lid
lock.  this needs to be spring-loaded (ball-point biro pen spring, cut
into 1/4s 7mm long) and i am kinda amazed at how much detail is needed
in such a small space.  the clasp is 10mm x 9mm x 8mm but requires a
5mm diameter hole in the centre (for the spring)... we'll have to see
how it works out.

l.

_______________________________________________
arm-netbook mailing list arm-netbook <at> lists.phcomp.co.uk
http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook
Send large attachments to arm-netbook <at> files.phcomp.co.uk
Picon

15.6in libre laptop "whoops"...

oh dear, first mistake: hoping it's not too big a deal...

i've done the base, now, and have moved on to doing the LCD screen
holder parts.  i forgot to check which side the connector is... turns
out that when the screen's facing forwards the connector is on the
*right*.... guess which side i put the main PCB?  yep, on the left...

so that shouldn't be so big a deal, right?  just run the cable all the
way along the back of the lcd until it pops out?  noo problem, right?
... except it has to cross the middle part of the LCD, which is where
there is a divider so that the left and right bamboo laminate panels
can "lock" into place, and also so that the top and bottom channels
can be divided into two (so they'll fit across a 200mm x 200mm 3d
printer).

the problem is in joining the parts together.  previously i had
thought to slot a little u-shape in place which would act as a trap:
the ends of each of the U would "lock" into the left and right
edges.... noo problem, right?  except now there's a cable that has to
go through exactly where that joining-piece was supposed to go.

the other option: i was considering mirror-imaging the laptop base.
put the PCB on the right, battery on the left.... except argh i
remembered that i had to *offset* the touchpanel from centre (by about
30mm) in order to fit the battery to its right, and also fit PCB2 so
that the keyboard connector goes into it.... all of this means that
there is absolutely no way that the parts can be mirror-imaged: it's a
near total redesign of the interior, and i'm certainly not doing that.

sooo i have an eeenteresting mechanical design challenge left to think
(Continue reading)

Picon

video of 15.6in laptop casework

http://rhombus-tech.net/community_ideas/laptop_15in/news/

just created a 5min video describing the casework: the parts for the
base are now completed, i will move onto the screen next.

l.

_______________________________________________
arm-netbook mailing list arm-netbook <at> lists.phcomp.co.uk
http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook
Send large attachments to arm-netbook <at> files.phcomp.co.uk
Nico Rikken | 8 Jul 22:35 2015
Picon

Req: FOSS-restricting firmware hints

Dear ARM-netbook and Coreboot readers,

In FSFE context we're looking for examples regarding firmware
restrictions on modern computer hardware. This so that we can shed light
on the difficult situation you are all too familiar with. Examples are:

- Trusted Platform Module (TPM) chips
- Secure Boot
- Intel
  - Management Engine
  - Advanced Management Technology
  - Boot Guard

It will be great if you can add some from the top of your head, ideally
including some references. I'll be doing my own research as well, but
your hints will greatly help this process.

Kind regards,
Nico Rikken
_______________________________________________
arm-netbook mailing list arm-netbook <at> lists.phcomp.co.uk
http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook
Send large attachments to arm-netbook <at> files.phcomp.co.uk
Picon

05 july 2015 laptop casework progress

http://rhombus-tech.net/community_ideas/laptop_15in/news/

getting there.  next is to do the right-hand edge, which will take the
3rd PCB (battery, power etc.).  all sorts of small niggles, still have
to check that the bamboo panels will fit, for example!  need to get
some battery samples to make sure that it'll fit, etc. etc....

l.

_______________________________________________
arm-netbook mailing list arm-netbook <at> lists.phcomp.co.uk
http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook
Send large attachments to arm-netbook <at> files.phcomp.co.uk
Picon

spaghetti instead of 3d

http://rhombus-tech.net/community_ideas/laptop_15in/news/

first print of 4 of the full-sized parts - enough to put the keyboard
and touch/LCD in place to see what the laptop will look like.

l.

_______________________________________________
arm-netbook mailing list arm-netbook <at> lists.phcomp.co.uk
http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook
Send large attachments to arm-netbook <at> files.phcomp.co.uk
Picon

15.6in laptop casework print started

so after a looong time designing and testing, i began 3d printing the
first parts of the full-sized 15.6in laptop casework a few hours ago.
the longer edges fit just across the diagonal of a 200x200mm mendel90
with 10mm to spare.  the glass is not properly flat but acceptably
enough for the part to grip in each corner.

the middle strut and back edge are done already, and the left-hand
edge is underway.  the back edge needs to be re-done already: the
smaller "test runs" of the past few months were able to iron out the
majority of possible errors however there are still things that need
fine tuning.  most of the fine-tuning i will leave until i have at
least a completed demo which i can assemble around the screen,
keyboard and touchpanel.

l.

_______________________________________________
arm-netbook mailing list arm-netbook <at> lists.phcomp.co.uk
http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook
Send large attachments to arm-netbook <at> files.phcomp.co.uk
Paul Boddie | 29 Jun 17:06 2015
Picon

Any progress?

Luke, others,

Has there been any recent progress on the crowd-funding campaign or on other 
things? I know there's been a little off-list correspondence about Gratipay, 
which is peripheral to everything else, but for the benefit of anyone 
following the list (either as a subscriber or reading the archives) an update 
might be informative.

From what I've seen from following other lists, there's progress on Linux 
device tree support for various Ingenic JZ-series SoCs, which might have a 
beneficial impact on any jz4755 card that is produced. My own experiments with 
the jz4720/30/40 have stalled somewhat for the time being, but I'll get back 
to them at some point, I imagine.

Paul

_______________________________________________
arm-netbook mailing list arm-netbook <at> lists.phcomp.co.uk
http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook
Send large attachments to arm-netbook <at> files.phcomp.co.uk
Paul Boddie | 12 Jun 16:25 2015
Picon

Fundraising and campaign status (and wiki authentication)?

I saw a collection of recent updates on the wiki, although the URL in the 
following page is wrong:

http://rhombus-tech.net/fundraising/

Where...

https://crowdsupply.com/eoma68/micro_desktop

...should be...

https://crowdsupply.com/eoma68/micro-desktop

I tried to authenticate myself using various mechanisms in order to edit the 
page, but...

 * OpenID didn't work with the Python Package Index OpenID provider
 * Google have discontinued their OpenID 2.0 support (yes, thanks Google for
   breaking the Web again!)
 * Wordpress claimed that I don't own my own username

Particularly the last one, but also the first one, sounds more like 
communications issues between the wiki and OpenID providers.

I guess I could register, but I thought it might be helpful to indicate a 
possible problem.

Paul

_______________________________________________
(Continue reading)

Picon

laptop 15in progress report

http://rhombus-tech.net/community_ideas/laptop_15in/news/

first near-complete render (at full 15.6in size) which shows something
looking more like a laptop.

l.

_______________________________________________
arm-netbook mailing list arm-netbook <at> lists.phcomp.co.uk
http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook
Send large attachments to arm-netbook <at> files.phcomp.co.uk

Gmane