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<jow_laptop>
wolfspraul: not sure, the concept does feel strange to me
<jow_laptop>
wolfspraul: but that must have been like when my parents got plastic money
<wolfspraul>
good point :-)
<wolfspraul>
I think there is an opportunity for open hardware at some point, somewhere
<wolfspraul>
we shall see
<wolfspraul>
what happened to those crypto stick guys?
<wolfspraul>
I read some good stuff about that a while ago, haven't checked recently
<jow_laptop>
yes it is interesting. could help to bring pki to the masses
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<qi-bot>
Pete Ippel ‽ (Westchester): @kanyewest If you truly believe in what you just quoted, you need to check out the concept of @sharism: Share to Be @fabricatorz @qihardware ( 154811493358112768@hypermodern - 31s ago via web )
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<GorDonFreeMan>
hi
<GorDonFreeMan>
;>>
<GorDonFreeMan>
anybody ever hacked a HDD ?
<GorDonFreeMan>
i see some very c00l stuff in them
<GorDonFreeMan>
you can even make a speaker from da "voice coil"
<wolfspraul>
GorDonFreeMan: haven't heard of such a hack - but go ahead! ;-)
<GorDonFreeMan>
ahaha but it's simple
<GorDonFreeMan>
just connect the head to something at the center of rotation's angle with some rubber band, and attach a plate to it so it moves more air, then find the voice-coil's 2 endpoints, and connect an audio amplifier
<GorDonFreeMan>
it IS a speaker
<GorDonFreeMan>
;>>
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<wolfspraul>
GorDonFreeMan: well really, please do it1
<wolfspraul>
!
<wolfspraul>
:-)
<wolfspraul>
speakers are cool, so are speaker hacks
<wolfspraul>
I had and still have some vague plans of building speakers with Jon rejon Phillips, but no big bang yet
<wolfspraul>
those laoban boxes also exist, were made etc. but the documentation side is lacking, I guess the speakers themselves were too much fun to sit down with boring paperwork
<wolfspraul>
speakers out of old hdds - more power to you
<GorDonFreeMan>
well moisture killed my wood ;<
<GorDonFreeMan>
i got some liquid spilled on them
<GorDonFreeMan>
and i didn't made it waterproof
<wolfspraul>
yeah wood is difficult
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<GorDonFreeMan>
i'll make another set in a few month
<wolfspraul>
we did a wood case for the Milkymist One, but by now (1 year later), it's so bent that it totally doesn't fit together anymore
<GorDonFreeMan>
it was 90cm high btw :) and had a reflex system
<wolfspraul>
GorDonFreeMan: please keep us posted here, by all means
<wolfspraul>
if you like
<GorDonFreeMan>
do you want to build speakers?
<wolfspraul>
and if there are ways to support you or work together, at least bring it up and give others the chance to understand what you do
<wolfspraul>
well sure, I just said so [laoban]
<wolfspraul>
in fact we did already
<wolfspraul>
did you click on that link?
<wolfspraul>
it says 'qi hardware' there :-)
<GorDonFreeMan>
;>
<wolfspraul>
but like I said, we only have some speakers now, the plans and lots of the documentation are not clean and at the level I would like them to have
<wolfspraul>
meanwhile Matt is off to the next speakers, some 360 degree whatever. I have to check with him in his studio.
<wolfspraul>
he is a real sound fanatic
<GorDonFreeMan>
i like quality too
<wolfspraul>
sound quality, sure. amazing how good good speakers can be, right?
<wolfspraul>
and that's a quality that is hard to explain in text, video, marketing
<GorDonFreeMan>
:)
<GorDonFreeMan>
i have just designed a robot muscle
<GorDonFreeMan>
<;
<GorDonFreeMan>
yea
<blogic>
GorDonFreeMan: how ?
<blogic>
i mean ...
<wolfspraul>
nice
<wolfspraul>
any links? pics?
<GorDonFreeMan>
now deciding what i use it first :)
<blogic>
servos or pneumatics or pessure valves ?
<blogic>
we played with servos ... works but $$$
<GorDonFreeMan>
stepper motors, and magnetic magic :)
<blogic>
so recently we played with valves from washing machines to pressurise plasic hoses
<GorDonFreeMan>
i have more designs for more applications
<blogic>
ok $$$$
<blogic>
so a bot with 48 joints == several k$
<GorDonFreeMan>
i don't like pressure things
<GorDonFreeMan>
;/
<blogic>
me neither
<blogic>
but for hobby motors, servos ... are too expensive
<GorDonFreeMan>
no, i build mine
<blogic>
think about a small hexapod
<GorDonFreeMan>
and extract steppers from junk
<blogic>
yes and if you built 40 its expensive
<GorDonFreeMan>
:P
<GorDonFreeMan>
;>>
<blogic>
which makes it not eproducable
<blogic>
ok
<GorDonFreeMan>
cd drives have little steppers that you can use for a spider:P
<blogic>
yes
<blogic>
i am looking a a means to move 25kg bots
<blogic>
:D
<GorDonFreeMan>
and the main drive motor can even fly an aeroplane if properly hacked
<blogic>
we are using pressure valves from old washing machines atm for testing
<GorDonFreeMan>
blogic<< large scale will be expensive whatever you do
<GorDonFreeMan>
or.... it will be slow
<GorDonFreeMan>
:P
<blogic>
yes
<GorDonFreeMan>
a cd drive can move 1 tonn robot
<blogic>
we did some maths
<GorDonFreeMan>
but the time needed would be large
<blogic>
and if we used servos we need 3k€ / robot
<blogic>
just for the servos
<blogic>
and and logic to drive them
<GorDonFreeMan>
design servos, and make them :P
<blogic>
sure
<blogic>
i wanted to make a robot not a servo :D
<GorDonFreeMan>
haha
<GorDonFreeMan>
but you want cheap servos in your robots
<blogic>
no
<GorDonFreeMan>
so you have to make servos first.
<blogic>
i dont want servos
<blogic>
i consider pneumatics / pressure to be a better solution
<blogic>
at least for low cost
<GorDonFreeMan>
and i think i will consider my beta test robot muscle
<GorDonFreeMan>
:)
<blogic>
of course in an ideal world i have 50e servs that tell me the pressure they used and the tortion
<blogic>
but they cost 50€ a pop
<GorDonFreeMan>
still have to decide the feedback type
<blogic>
GorDonFreeMan: do you have pics online ?
<blogic>
yes
<blogic>
feedback is important
<GorDonFreeMan>
no, i just thinked this out about 30 mins ago
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<blogic>
oki
<GorDonFreeMan>
so i'm making prototype
<GorDonFreeMan>
:)
<GorDonFreeMan>
sooo
<GorDonFreeMan>
i have a motion
<GorDonFreeMan>
and i'd need some type of industrial dirt-safe position encoder
<GorDonFreeMan>
;/
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<GorDonFreeMan>
i don't want encoder foil and photo diodes
<wolfspraul>
do you have any blog or anything where you document your work?
<GorDonFreeMan>
or... i could do that, if i enclose my stuff dust-free
<GorDonFreeMan>
i haven't made a blog
<GorDonFreeMan>
but i could
<GorDonFreeMan>
i just always have beter things to do
<wolfspraul>
sure I understand, just asking...
<wolfspraul>
where do you live, if I may ask?
<GorDonFreeMan>
hungary
<GorDonFreeMan>
EU
<wolfspraul>
oh great
<GorDonFreeMan>
so there are many thrown out junk dvd players around here
<GorDonFreeMan>
just have to find some
<GorDonFreeMan>
also bad HDD-s
<GorDonFreeMan>
som printers
<GorDonFreeMan>
:)
<GorDonFreeMan>
laster printers have ultra cool stepper motors
<GorDonFreeMan>
*laser
<blogic>
GorDonFreeMan: accoring to you url the budapest IX runs a pr0n site from which you connect
<GorDonFreeMan>
ahaha
<blogic>
post privacy 2.0
<blogic>
:D
<GorDonFreeMan>
sooo
<blogic>
a blog is cool
<GorDonFreeMan>
i have even found 96 step steppers in printers :)
<blogic>
but if you blog your work there is a record of when you were lazy
<GorDonFreeMan>
96 full steps
<GorDonFreeMan>
and they usually can handle 500-800mA
<GorDonFreeMan>
somebody building CNC machine here?
<blogic>
hahayes
<blogic>
yes
<blogic>
lots of them
<GorDonFreeMan>
so what do you suggest for position sensing?
<blogic>
of a cnc ?
<GorDonFreeMan>
i have a linear motion in 3 axis
<GorDonFreeMan>
yes
<blogic>
we just make sure the code and drivers work properly
<GorDonFreeMan>
;/
<blogic>
we started counting steps and so on 2 years ago
<blogic>
but then reverted to just making sure the machine works
<blogic>
rather than working around lost steps
<GorDonFreeMan>
yeah well i can do that in openloop mode, but what if my servo does not have "steps" ?
<viric>
zear: hm it looks fine. I imagine, as jow_laptop may mean, that the uclibc loader only understands its own libc&co
<zear>
viric, so it would mean that i have to compile the binary using nanonote's own compiler?
<zear>
(back in 2009 dingoo binaries would be compatible)
<viric>
ah
<viric>
by closed source you mean that *you* have the source?
<zear>
i have the source, i can't release it
<GorDonFreeMan>
The biggest technical problem for OLEDs was the limited lifetime of the organic materials.[57] In particular, blue OLEDs historically have had a lifetime of around 14,000 hours to half original brightness (five years at 8 hours a day) when used for flat-panel displays.
<GorDonFreeMan>
i can live with that.
<viric>
ahh ok
<GorDonFreeMan>
i buy a display every year.
<zear>
one being my own game, 3 of someone else that asked me to port it to the dingoo and nanonote
<viric>
ok
<GorDonFreeMan>
and i can have 100kHz refresh rate, and very low power consumption.
<viric>
I can't promise it will work :)
<viric>
I don't know why it does not start in any case.
<GorDonFreeMan>
In 2007, experimental OLEDs were created which can sustain 400 cd/m2 of luminance for over 198,000 hours for green OLEDs and 62,000 hours for blue OLEDs.
<zear>
viric, i'll just compile it with debugging symbols and check with gdb
<viric>
ok
<zear>
maybe it's failing on sdl init
<viric>
please tell what you find
<zear>
although i think i had printfs if that was the case
<viric>
you can strace it
<zear>
yea
<viric>
SDL might do some ioctl on the fb
<zear>
first i thought it's maybe 16 vs 32bpp issue
<zear>
but when compiled with 32bpp the binary still segfaults
<zear>
ok, according to strace the game parses the config file, so that means the binary gets executed
<wolfspraul>
the hardware is more expensive than the NanoNote (500 USD instead of 100 USD), but it's the #1 most interesting new computing platform, imho
<wolfspraul>
if you are into that kind of thing :-)
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<GorDonFreeMan>
no i am not interested in your light effect box
<GorDonFreeMan>
i use a computer with linux
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<GorDonFreeMan>
The amount of power the display consumes varies significantly depending on the color and brightness shown. As an example, one commercial QVGA OLED display consumes 3 watts while showing black text on a white background, but only 0.7 watts showing white text on a black background.[10] Because the black pixels actually turn off, AMOLED also has contrast ratios that are significantly better than LCD.
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