[Arm-netbook] libre laptop 3d print run 90% done
Luke Kenneth Casson Leighton
lkcl at lkcl.net
Mon Jan 18 21:00:38 GMT 2016
crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68
On Mon, Jan 18, 2016 at 8:24 PM, Troy Benjegerdes <hozer at hozed.org> wrote:
> On Mon, Jan 18, 2016 at 02:54:52AM +0000, Luke Kenneth Casson Leighton wrote:
>> crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68
>> On Mon, Jan 18, 2016 at 2:38 AM, Alexander .S.T. Ross
>> <maillist_arm-netbook at aross.me> wrote:
>> > Looking forward to seeing how this turns out.
>> > I’ve been considering having a go at printing it my self, at a hacker
>> > space... I see how you get on. For whats i be letting my self in for ;)
>> you'll need about... 10 metres of ABS @ 3.0mm and about 15 metres of
>> PLAY @ 3.0mm. if using 1.75mm adjust accordingly.
> What would you need to make it entirely out of PLA?
high-temperature PLA, such as this:
the reason is, as i discovered by leaving the first prototype in
direct sunlight, that the standard temperature PLA will melt. that
means a number of things:
(1) the screen left and right edges bend
(2) the screen hinge parts start to deform
(3) the friction-hinge softens enough (it's under quite a lot of
pressure) so that it deforms and no longer does its job
(4) the base back part, which has a circular tube that the friction
hinge is in, will crack.
so there is a lot that goes wrong just by having the temperature
reach the glass point (60C) of standard temperature PLA.
high-temperature PLA such as that made by proto-pasta is crystalline
and has a glass point around 85C.
> I would buy a truckload of PLA from the Ingeo plant in Nebraska if
> I can start making laptops from corn...
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