DocScrutinizer05 changed the topic of #qi-hardware to: Copyleft hardware - http://qi-hardware.com | hardware hackers join here to discuss Ben NanoNote, atben / atusb 802.15.4 wireless, and other community driven hw projects | public logging at http://en.qi-hardware.com/irclogs and http://irclog.whitequark.org/qi-hardware
<DocScrutinizer05> indeed I also wonder what they did to make those chip antennas. Watching the roundabout 2412 antenna of R0ket
<DocScrutinizer05> 4.5mm length
<DocScrutinizer05> 1,? mm wide
<DocScrutinizer05> http://www.r0ket.de/ the white thingie on top
<wpwrak> quite small indeed
<DocScrutinizer05> average "gain" -1dBm
<DocScrutinizer05> which isn't bad at all for such a tiny critter
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<DocScrutinizer05> r0ket is completely awesome
<DocScrutinizer05> and they use one LED dual-use as ALS :-D
<DocScrutinizer05> "attention! when you enable the red charging LED, you can't detect ambient light level anymore"
<wpwrak> no time-sharing ?
* DocScrutinizer05 idly wonders if, when you pulse a LED with 2MHz, you could tell apart a white from a black paper covering the LED
<DocScrutinizer05> during the off periods
<DocScrutinizer05> with no ambient light
<wpwrak> kinda difficult to set up
<wpwrak> but try it :)
<DocScrutinizer05> anyway that's awesome design, almost like the stuff I take pride in designing. Just a LED and a series R connected to a multifunction MCU IO
<DocScrutinizer05> 2 components for two functions
<DocScrutinizer05> plain brilliant
<wpwrak> you challenge for today is to also make it detect and emit sound. tomorrow, make it emit RF in the 900 MHz band ;-)
<DocScrutinizer05> hehe
<DocScrutinizer05> emit sound I guess I already achieved years ago. Alas the livespan been *very* short
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* whitequark giggles
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<wpwrak> DocScrutinizer05: modified challenge: emit native american smoke signs ... in various dialects :)
<wpwrak> xkcd is pleasantly evil today ;-)
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<whitequark> wpwrak: btw, I did a few more experiments with acrylic last night
<whitequark> I am now certain about two things:
<whitequark> 1) feedrate really only affects the finish, as long as it doesn't break your endmill. I set it to various values from 100mm/min to 1200mm/min, without too much difference
<whitequark> 2) getting a lot of coolant is *really* important. without coolant, no matter how slowly or quickly you go, the results are shit
<whitequark> with coolant, it's the exact opposite
<whitequark> without enough*
<whitequark> and "enough", as I now see, means "you need a bucket under your table"
<whitequark> about 1L per 5min
<whitequark> so if you're fine with a matte, slightly rough surface, go 800mm/min. if you really need it to be transparent like glass, go for 100
<whitequark> but in the latter case, prepare to haul water for forty minutes (I need to make it closed-loop or something.)
<wpwrak> hmm, odd. my acrylic doesn't act like yours. no overheating issues at all, but the finish is always rough, especially on areas where the mill worked from Z+
<wpwrak> (water) how about getting a metal sheet to which you attach acrylic et al., then make a "dam" around it with silicone. then you can just flood the workpiece.
<whitequark> that sounds too ad-hoc for me
<whitequark> I like my idea much better, it's pretty simple
<whitequark> the Al table, to which my wooden clamp attachment thing is mounted, already has slots, and the machine itself is slightly tilted to front
<whitequark> I could just mount a water collecting thing in front of it, where the bulk of water will go, and drain it somewhere
<whitequark> pro: no fiddling with silicone needed, no large quantities of water somehow stored in the machine and then drained via inexplicable ways
<whitequark> con: slightly more complex
<whitequark> wpwrak: it may be relevant that I use an endmill with diamond pattern
<whitequark> as I understand, it's basically for fiberglass, and it heavily rubs the material, hence all the heating
<whitequark> in principle one should use a 1-flute endmill for that, but I've had limited success obtaining endmills with the properties I want so far
<whitequark> wpwrak: (finish) with the "FUCKING DROWN IT ALL™" technique I can get a finish where the (milled) side is almost indistinguishable from the (cast) surface
<whitequark> it's not *entirely* smoothly transparent, but it's pretty close
<whitequark> I think I can get it to be completely transparent by going even slower and with better fixture to avoid miniscule shifts of workpiece between layers
<whitequark> (if I try to mill the entire depth of workpiece, it appears that the supply of coolant is inadequate, as it cannot get to the very bottom of the hole)
<wpwrak> (smooth finish) maybe i should try a diamond pattern too :)
<wpwrak> always used 2-flute so far
<whitequark> maybe you should try using coolant?
<whitequark> (2-flute) how fast/slow does your machine go?
* DocScrutinizer05 just wondered how much (in kg of gold) a mill bit with embedded channels for feeding coolant directly to the blades would be
<whitequark> wpwrak: the idea with 1-flute endmills is that they're good for crappy desktop router machines, which have sync motors which are only efficient when going really fast
<DocScrutinizer05> but maybe when I register a patent, I even could afford one or two of those critters from what the patent earns me X-P
<whitequark> so you have twice lower MRR with same rpm and same hp
<whitequark> if your machine has an async motor which can go slow, using 2-flute endmill is just as fine
<whitequark> DocScrutinizer05: there are actually tool chucks with embedded coolant channels
<whitequark> I don't think there are actual endmills, but who knows
<DocScrutinizer05> thought as much. CRAP
<DocScrutinizer05> another wasted patent
<DocScrutinizer05> I guess with a laser tool you even could build endmills with such channels "drilled" into them
<whitequark> DocScrutinizer05: "coolant-through cutting tools" is the right google query
<DocScrutinizer05> o.O
<whitequark> WHOA
<whitequark> this is literally what you are talking about
<DocScrutinizer05> YAY, EXACTLY!
<DocScrutinizer05> knew it, again too late for patenting ;-P
<whitequark> I wonder how expensive it is
<whitequark> usually around $50
<DocScrutinizer05> sure, but they start at 6mm. Thought as much
<DocScrutinizer05> getting a 1.5mm will be impossible
<whitequark> prolly possible, but it will seriously degrade structural quality
<whitequark> hm, how do you make endmills?
<whitequark> casting?
<DocScrutinizer05> hardly, but you need purified water to not clog the laser holes
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<DocScrutinizer05> (hardly decrease struct integr)
<whitequark> well, then just run it in an open-loop system?
<DocScrutinizer05> sure
<whitequark> bring fresh (even tap) water in, collect wet chips outside
<DocScrutinizer05> which btw is anyway the cheapest
<whitequark> say just in a huge tank and wait for it to evaporta
<whitequark> evaporate*
<DocScrutinizer05> or just filter
<DocScrutinizer05> Melitta coffee filter will do a great job for that
<whitequark> or do like NPO Mayak does it with radioactive waste and just dump it to the nearest lake
<DocScrutinizer05> lol
<whitequark> you heard that story?
<DocScrutinizer05> nope
<whitequark> ooooh you will LOVE it
<DocScrutinizer05> prolly not
<whitequark> NPO Mayak is russia's nuclear waste processing / warhead plutonium extracting facility, built really long ago by soviets
<DocScrutinizer05> just the usual idiocy and moral corruptness
<whitequark> they were once going to collect the highly active waste in reservoirs, but it turned out that it's too radioactive for that
<DocScrutinizer05> we see almost exactly same in Italy all over
<DocScrutinizer05> with toxic waste
<whitequark> so they literally dump it into three lakes around the facility. near the outlet, 1hr spent in a lake is immediately lethal
<whitequark> it's *that* active
<whitequark> actually my estimates based on current data is that after 20 min, you aren't even going to get out of the lake
<whitequark> they also have accidents fairly regularly
<DocScrutinizer05> great location for holiday and fetch souvenirs
<whitequark> once there was an accident, in which the *head of nuclear safery* grossly neglected the aforementioned safety, went into a hugely contaminated area and promptly died there
<whitequark> just think about it for a minute
<DocScrutinizer05> LOL
<DocScrutinizer05> rotfl
<whitequark> they were transferring 70L of very active Pu-containing liquid, the worker who was doing it accidentally caused criticality, was scared by flash and cracked the container
<whitequark> which for some inexplicable reason was made of fucking glass
<DocScrutinizer05> maybe they should fill it into vodka bottles
<whitequark> so now they have a huge plutonium puddle
<DocScrutinizer05> ooh criticality incidents, one of my fav wiki pages
<whitequark> head of nuclear safety goes in and does some shit (don't remember exactly) with the puddle and the rest of container, causes *another* criticality accident and gets enough dose to die in a day or so
<whitequark> like how fucking dumb exactly do you need to be
<DocScrutinizer05> to work in such facility? dunno, inevaluable
<whitequark> they also irradiated several million people downwind across the five decades the facility is operating, to significant levels
<whitequark> it was all denied until quite recently
<whitequark> no one was even told they were at risk, much less given preventative measures
<whitequark> and on the river that gets quite some of the water from said lakes, there are still three villages
<whitequark> the whole facility looks like something out of a cliché video game
<whitequark> and operates
<DocScrutinizer05> Russian justice: we are poisoning our own people, so why the heck should we worry about poisoning the globe
<wpwrak> (head of safety) well, you could call his actions heroic :) remember K-19 ...
<DocScrutinizer05> K-19?
<whitequark> it seems to be a common theme in soviet interpretation of nuclear safety
<whitequark> see also: Semipalatinsk nuclear range, with several hundred underground detonations, again without any info or protection to the residents whatsoever
<wpwrak> (irradiated people) that's how homo sapiens radians was created :)
<DocScrutinizer05> yep, awesome
<whitequark> or the infamous military training
<DocScrutinizer05> most of those detonations been for hydrogen gas though, iirc
<whitequark> when the soviets dropped a bomb on their own territory and within a hour marched an army over that
<DocScrutinizer05> US did same
<DocScrutinizer05> "we need to test that case"
<whitequark> afaik, the US at least pretended to take some precautions, or just told the soldiers what exactly they were dealing for
<whitequark> soviets did neither
<whitequark> no fucks about safety given whatsoever--except for the officers, of course
<DocScrutinizer05> usual
<wpwrak> (k-19) a russian nuclear sub that had a reactor problem while at sea. people went in with chemical protection suits to fix it. eventually they succeeded, but ...
<DocScrutinizer05> a soldier is cheaper than a full body protective siut
<wpwrak> there's a movie on it,. K-19: The Windowmaker. quite worth watching.
<DocScrutinizer05> yeah
<DocScrutinizer05> know it
<whitequark> DocScrutinizer05: semipalatinsk has seen about 498 nuclear and themonuclear explosions
<wpwrak> well, they were supposed to have such suits on board. but then, i guess russian logostics aren't up to, say, german standards ...
<DocScrutinizer05> oops, I mixed that with your toxic waste site
<wpwrak> whitequark: well, once upon a time, the us sent soldiers into bomb fallout, too. you russians are just a little late in stopping the atrocities ;)
<whitequark> wpwrak: it has happened at about the same period
<whitequark> "Even the soldiers who participated in the exercise did not know that they had taken part.[3] The government congratulated the local population for their heroism in providing the nuclear shield for their Motherland."
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<whitequark> compare to Desert Rock: "Their purpose was to train troops and gain knowledge of military maneuvers and operations on the nuclear battlefield. They included observer programs, tactical maneuvers, and damage effects tests."
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<whitequark> what the US did was quite evil, but it was at least remotely sane. also, up to 20k participants
<whitequark> the soviet approach is just plain deranged
<whitequark> 45k people!
<DocScrutinizer05> 1944 Los Alamos (first criticality eccident) is still my fav one
<DocScrutinizer05> accident*
<DocScrutinizer05> first *fatal* accident, that is
<DocScrutinizer05> Louis Slotin
<DocScrutinizer05> and before him, Harry K. Daghlian
<DocScrutinizer05> but Harry K. Daghlian took 25 years to die from the accident
<DocScrutinizer05> err days
* DocScrutinizer05 wonders when coffee will start to kick in
<DocScrutinizer05> 30 December 1958 Cecil Kelley, also brilliant epic failure, though the operator probably was innocent victim
<DocScrutinizer05> the error pattern itself however is awesome
<DocScrutinizer05> you can watch it in your teacup every day, when you use sugar in your tea
<DocScrutinizer05> Wood River Junction -- epic
<wpwrak> well, 20k vs. 45k doesn't sound like such a huge difference ...
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<DocScrutinizer05> LOL! >>The shift supervisor then deceived the radiation control supervisor and entered the room of the incident and possibly attempted to pour the solution down a floor drain, causing a large nuclear reaction that irradiated the shift supervisor with a fatal dose of radiation.<<
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<DocScrutinizer05> I can't help but I love russian mentality
<whitequark> yep yep, that's the accident I was talking about
<whitequark> let me get more details
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<whitequark> I've seen an official report somewhere which really elaborated on the incredible stupidity that caused it, but I can't find it again
<whitequark> also, it's in Russian anyway
<whitequark> take a look at this: http://www.yabloko.ru/Publ/Atom/atom00018.html
<whitequark> Intermediate-and low-level LRW continue to dump into Lake Karachay, and it remains a potential source of large-scale radiation accident in the case of ash contaminated water under the influence of possible tornadoes. Formed near Lake Karachai lens contaminated groundwater continues to move to the river Mishelyak. Its boundary to the nitrate ion in a southerly direction reached Valley Mishelyak. "Mayak" is largely limited to passive monitorin
<DocScrutinizer05> I never know if it's soviet every day situation or a painting of H.R. giger
<whitequark> even funnier: NPO Mayak doesn't have the license for operation of hydraulic structures by our own federal law
<DocScrutinizer05> I could bet on that
<DocScrutinizer05> hydraulic structures are not supposed to be used for any type of radioctive material processing
<DocScrutinizer05> it would be like me having a permission to handle Pu because I build electronic devices
<whitequark> well, I mean, they could in principle get a license for building an artifical lake, without specifying any concrete purpose
<whitequark> but welp, why bother
<whitequark> you can just dig a hole and fill it with boiling plutonium waste
<kyak> just don't make conclusions about "russian mentality", as you called it, based on your quite frankly limited knowledge about Russia
<whitequark> a cavalier approach to danger *is* something you can clearly observe in practically any industry
<kyak> wpwrak: congrats with participation in Neo900 project! This should've happened long ago :)
<ysionneau> ah wpwrak contributed to Neo900?
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<kyak> according to the latest announcement, Werner is now the crew member
<wpwrak> "a" member ;)
<wpwrak> "the crew member" would be indicative of a bit of a problem
<kyak> it was "a" at first, but then i thought that the article belongs to "crew" and therefore woudl indicate "some" crew :)
<wpwrak> it was a good theory, but unfortunately incorrect ;-)
<kyak> yeah, i was just finding excuses :)
<kyak> it suddenly occured to me that there are no native English speakers here
<kyak> i don't know what's "here" but anyway
<wpwrak> at the moment, this may indeed be true
* wpwrak notices that, after 3rd or 4th time, making a new variant of some layout (from scratch, else it wouldn't be fun), gets remarkably easy
<ysionneau> what are you going to do for Neo?
<ysionneau> what's your mission ? :)
<wpwrak> at the moment, mainly moral support :) then checking things, schematics and such. later on, possibly take care of QA (production testing procedures)
<ysionneau> cool!
<ysionneau> please integrate anelok in the neo900 design :p
<ysionneau> so that the phone can do password safe as well
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<wpwrak> ;-))
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<wpwrak> i wonder it i should try to sneak in idbg :)
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<DocScrutinizer05> too late
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<DocScrutinizer05> Nik been faster than you
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<DocScrutinizer05> kyak: what else do you suggest I should base my conclusions on?
<DocScrutinizer05> wpwrak: are you registered to ML meanwhile?
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<DocScrutinizer05> (idbg) still the probably better design, go suggest it - after reviewing whet we got so far
<DocScrutinizer05> what
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<wpwrak> DocScrutinizer05: you mean the -devel list ? yup
<DocScrutinizer05> fine
<DocScrutinizer05> maybe you want to /join #neo900 too?
* wpwrak stretches the screen a little ...
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<whitequark> GCHQ destroyed the keyboard, trackpad controllers and *inverter* on the motherboard of their computers
<whitequark> (while erasing the snowden's cache from them)
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<DocScrutinizer05> meh, fools. Don't they see that it's not about the *original* chips but about some fake that acts as keylogger or storage device in addition to the generic (e.g.) keymatrix decoder? It's completely nonsensical to investigate what can get stored on a usual keyboard controller, the question for GCHQ been if it maybe was more than just a keyboard controller
<DocScrutinizer05> I bet the monitor also been attached via USB in addition to the usual VGA, or it used a HDMI or whatever, that also allows similar attaching of peripherals
<DocScrutinizer05> whatever they call "inverter", I don't care to much, given the ignorance they expose by approaching this investigation
<DocScrutinizer05> >>Due to the generality of this component, it is difficult to ascertain what role this plays in the overall operation of the device, however we believe this component is similar in function to the chip described here.<< yep, exactly
<sb0_> why did they damage the PCB in such as way though, instead of simply desoldering the chip?
<DocScrutinizer05> rather interesting however is that GCHQ thinks they can destroy data by destroying hardware.What makes them think there's no copy anywhere
<sb0_> the trackpad chip (it's supposed to be a 2Mbit SPI flash) and the inverter are easier to desolder than to mill
<sb0_> maybe they're just trolling us ;)
<DocScrutinizer05> sb0_: do you really think they had a good reason and rationale for that activity?
<DocScrutinizer05> of course they are trolling
<DocScrutinizer05> trolling the guardian
<sb0_> "let's just damage some chips to show we've done some voodoo"?
<DocScrutinizer05> let's just damage some stuff at "the guardian" to let them know we can do that
<DocScrutinizer05> they sent their cleaner team which did a proper job of destroying everything that might have a storage built in - not per default off the shelf but technically, by somebody who wantsa to hide such storage
<whitequark> DocScrutinizer05: yeah, that's the consensus of my... ahem, twitter stream as well
<DocScrutinizer05> so: all USB attachable devices, all devices attached to any other data bus, all storage devices of course
<whitequark> hm
<whitequark> first, I am not high. second, I think that our solar system and my vacuum cleaner are markedly similar in some qualities
<DocScrutinizer05> and probably they weren't even very religious about it since they knew the guardian has copies anyway
<whitequark> or rather, I think you can model curved spacetime with air, some shit floating in it and movement of it, instead of the boring old rubber-table-and-steel-ball thingy
<whitequark> I've seen this air stream do some funky things like take a particle and accelerate it immensely rather than vacuuming up
<whitequark> and also it bends streams of running water in a really fascinating way
<DocScrutinizer05> wait till it sucks up the water, this will get really funny
<DocScrutinizer05> I doubt your first statement ;-P
<whitequark> it was actually my first idea for addressing the "flood" in "flood coolant"
<whitequark> instead of, I dunno, placing a bucket under the table
<whitequark> 1) the vacuum cleaner sucks up water *really* well
<whitequark> 2) it turns it into fine mist that goes through all filters
<whitequark> 3) suddenly you have a lake in your room
<whitequark> oddly, the vacuum itself doesn't really seem to mind such treatment
<whitequark> I also tried connecting its inlet to its outlet and pouring water in it, but it doesn't seem to form a loop very well
<whitequark> I think I have to restate that I'm not high, I'm just curious
<DocScrutinizer05> did you ever place a PC under water, out of curiosity how well that works?
<DocScrutinizer05> what did you think where the water is supposed to stay, given that's a usual dry-vacuum that doesn't have any sort of a tank for the water?
<DocScrutinizer05> btw it's amazing how long it takes until a usual motor running at 220V AC will desintegrate and break when operated under water
<whitequark> I take it you've checked that experimentally? :D
<whitequark> (PC) not. not yet
<DocScrutinizer05> can take days until electrolytic effects destroyed the cables or other parts, or the bearings go rotten
<DocScrutinizer05> but for sure they eventually will
<whitequark> hmm
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<DocScrutinizer05> I suggest you use a usual bucket with lid (often used to sell e.g. 10L of soap in it, or similar) and cut a hole into middle of the lid for vacuum, and a second hole at the outer end of the lid for a tube that sucks your water into the bucket
<DocScrutinizer05> ideally the tube is bent or mounted in a way so it gives a circular momentum to whatever goes into the bucket
<DocScrutinizer05> so air and water is spinning along the inner side of the bucket, thus separating water from air
<DocScrutinizer05> I again doubt your statement about being high :-)
<DocScrutinizer05> maybe some solvents or whatever? ;-)
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<DocScrutinizer05> you're still alive? or already electrocuted by a vacuum cleaner filled with water?
<DocScrutinizer05> also beware of oxyhydrogen gas!
* DocScrutinizer05 starts to worry
<DocScrutinizer05> whitequark: did you test the PC now?
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<whitequark> DocScrutinizer05: was doing some shit
<whitequark> I mean, I was milling out the water collector suggestion I elaborated to wpwrak earlier
<whitequark> wpwrak: http://imgur.com/sv9UYzx so this is the kind of finish I get at 250mm/min
<whitequark> not too bad eh?
<whitequark> could probably get it better by going even slower, but I'm impatient
<whitequark> [3252722.898577] WARNING: CPU: 1 PID: 22571 at /build/linux-oxWk_8/linux-3.13.7/fs/sysfs/group.c:214 device_del+0x3b/0x1b0()
<whitequark> [3252722.898579] sysfs group ffffffff8187f3a0 not found for kobject 'target53:0:0'
<whitequark> what the FUCK is wrong with you linux
<wpwrak> ambient radiation too hard for the RAM ?
<whitequark> $ uptime 01:27:44 up 46 days
<whitequark> not bad for a laptop. maybe ambient radiation, yes
<wpwrak> (finish) looks nice
<whitequark> and this is the, uh, setup I made to make that: http://imgur.com/a/EFCuR
<whitequark> the pump is a russian-made one, a spare part for Moskvich (a russian car)
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<whitequark> it stands in a container because its case broke within 5 minutes when I first ran it, and it leaks water like crazy
<whitequark> which was, frankly, not surprising
<wpwrak> (car pump) then we know the origin of the radiation :)
<whitequark> the keyboard is NOT soaked in water, it stands about 2cm over the, uhhh, river
<wpwrak> ;-))
<wpwrak> let's codename your setup "crazy ivan" :)
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<whitequark> we could give it a typical russian military codename, say, "Chrysanthema"
<whitequark> or "Pinocchio" (I shit you not, it's an actual one, for this: http://www.capital.ua/uploads/news/2014/05/08/e055b1a682b7fb5c987fdc9903ef12a15f9b20e9.jpg)
<whitequark> there's also handcuffs "Tenderness"
<wpwrak> i think in WW2 these were called "stalinorgel" by the germans (stalin's organ, where organ = musical instrument)
<whitequark> about right
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<whitequark> we also have a police baton "Argument"
<whitequark> and a few more in that vein
<wpwrak> "convincer" ;-)
<DocScrutinizer05> "lart" been too geeky, I guess
<DocScrutinizer05> btw is this normal that those imgur photos take ~30s with 100% on one core to render?
<DocScrutinizer05> do they decompress jpg in javascript now?
<whitequark> DocScrutinizer05: no, I just take them in highest resolution my camera can
<whitequark> it takes ~a second to decode with (ridiculously overoptimized) chrome on (ridiculously overpowered) ivy bridge cpu
<whitequark> imgur really oughta to make thumbnails
<whitequark> s,to,,
* whitequark sighs
<whitequark> fuck this is hard
<whitequark> speeds and feeds are hard, proper fixturing is hard
<wpwrak> there's a reason why we call it "hardware" :)
<whitequark> fucking wood growing due to absorbing water and screwing up my Z calibration and making endmill go too deep and breaking six of them is too fucking hard
<whitequark> fuck it is 2am
<whitequark> (╯°□°)╯︵ ┻━┻
<whitequark> I should buy endmills in bulk or something
<whitequark> these chinese guys probably will give me a discount for a 1000
<whitequark> the problem is that the 1.5mm endmill is quite sturdy, e.g. it can do aforementioned 1200mm/min in acrylic
<whitequark> but the inner corners are WAY too roundy
<whitequark> and 1.0mm is really weak, you've gotta do no more than 250mm/min and not plunge it more than .8mm layer at a time
<whitequark> the inner corners still suck, but somewhat less
<whitequark> and I can't find a fucking file to make corners straight in the entire moscow, the only one I could find is flat, and I need one with rectangular section
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<whitequark> I'm going to go sleep before I start RANTING IN ALL CAPS
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