kyak 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, anelok and other community driven hw projects | public logging at http://en.qi-hardware.com/irclogs and http://irclog.whitequark.org/qi-hardware
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<eintopf> they told the most are in african
<eintopf> and it's difficult to get them because war
<eintopf> another question
<eintopf> what are the benefits exactly smd led and a normal led
<eintopf> except the form factor
<whitequark> eintopf: there's the congo minerals
<whitequark> but congo doesn't contain *most* tantalum, neither it even supplies the majority of it used today
<whitequark> typical telly fud
<whitequark> and there's no difference except the form factor
<eintopf> ahh
<eintopf> yea, but mean "bloody hands" in this case because the situation
<eintopf> how to get the resource, child work, not safety
<eintopf> now I never wants to buy a new smartphone
<eintopf> and the google guy already laughed about me because I have currently an old nexus 4
<eintopf> ...
<eintopf> with half broken display
<whitequark> that picture is bullshit
<whitequark> just like anything else with extraordinary claims and no sources
<eintopf> I saw this documentation
<eintopf> but it's in german
<eintopf> they told the same, it's like blood diamonds but they name it blood minerals
<whitequark> I don't know german unfortunately
<eintopf> :(
<whitequark> yes, blood minerals, conflict minerals, etc, are a problem that exists
<whitequark> DRC coltan is the major manifestation
<whitequark> however, there are regulations in place in EU and US that require tracking the supply chain of coltan, likewise with diamonds
<eintopf> I see
<whitequark> so saying that iphones rely on conflict tantalum is incorrect
<eintopf> ahh
<eintopf> okay
<whitequark> what *is* correct is that iphones are assembled on a foxconn factory with ~400 suicides per year
<eintopf> ok
<whitequark> well, probably lower now, since there was an outrage over this, but I doubt the conditions there improved all that much
<eintopf> ok.
<eintopf> and another question about wire, I have some of these magnetic wire
<whitequark> you mean varnish-covered magnet wire?
<eintopf> I need to google it, wait
<eintopf> yes
<eintopf> it looks exactly like that, when I solder at the line the isolation will be gone
<whitequark> I recommend clearing the varnish before soldering, it can interfere with forming of the joint
<eintopf> but I think it has a different name
<whitequark> burn it off with cigarette lighter. sandpaper also works in a pinch, but much slower
<whitequark> it's also called "transformer wire"
<eintopf> can I use that wire also when it lays inside a electric cicruit?
<whitequark> "inside"?
<eintopf> on some board components, etc
<whitequark> yes
<whitequark> keep in mind that sharply bending it will flake off the varnish
<eintopf> ah, not bending it. Ok
<whitequark> for a thin hookup wire, I recommend PTFE-coated wire
<whitequark> multistrand
<eintopf> and these are so small, I could use them directly @ smd led
<eintopf> or should I use "kynar wire"
<eintopf> mhh
<eintopf> because all people use kynar wire
<whitequark> kynar is another fluorinated polymer
<whitequark> should be at least as good as PTFE
<whitequark> so go ahead
<whitequark> pvdf (kynar) to ptfe is what pvc is to pe
<eintopf> ok.
<whitequark> generally... all fluorinated polymers offer excellent physical and chemical resistance
<whitequark> as long as cost allows i always prefer them
<roh> is pvdf also self-lubricating?
<roh> like ptfe and pom :)
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<whitequark> no idea here
<whitequark> looks like not
<DocScrutinizer05> ((foxconn factory with ~400 suicides per year)) they mounted nets so jumping out the window doesn't work anymore for suicide
<DocScrutinizer05> dunno if they also did anything else to actually improve the situation, prolly not
<whitequark> I think they made some minor concessions
<whitequark> but that doesn't really change anything
<whitequark> DocScrutinizer05: btw, import feature almost ready to ship...
<whitequark> in solvespace
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