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2014-03-18 00:13 <whitequark> hmm, seems like my Z missing steps problem was solved by limiting velocity to 1025mm/s
2014-03-18 00:13 <whitequark> from 1500mm/s
2014-03-18 00:14 <whitequark> also I'm inclined to believe the .05mm repeat positioning accuracy, because if it didn't actually provide that, my holes wouldn't hold nuts
2014-03-18 00:14 <whitequark> and they do
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2014-03-18 00:53 <whitequark> Aperture Science Object Attachment System, final version: http://i.imgur.com/W9zbvZ1.jpg
2014-03-18 00:53 <whitequark> I broke five endmills doing that :/
2014-03-18 00:54 <whitequark> seems like there's something weird going on with Z axis and/or the table is not parallel to XY plane
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2014-03-18 03:57 <whitequark> so I experimented a bit with copper plating bath and graphite
2014-03-18 03:57 <whitequark> result: copper is EVERYWHERE except where I want it to be
2014-03-18 04:01 <whitequark> http://i.imgur.com/uNE8jBl.jpg
2014-03-18 04:02 <whitequark> that is the *reverse* side of one-sided PCB
2014-03-18 04:02 <whitequark> I actually tried to scratch off the copper and it is not easy
2014-03-18 04:02 <whitequark> not significantly easier than with factory-made copper
2014-03-18 04:03 <whitequark> the layer is about... 40 micron
2014-03-18 04:04 <whitequark> but that's likely wrong figure affected by my ability to measure it
2014-03-18 04:11 <whitequark> nah, comes right off if I try to tin it: http://i.imgur.com/wgBMNZy.jpg
2014-03-18 04:12 <whitequark> which is... well, predictable
2014-03-18 04:12 <whitequark> no reason for it to have good adhesion to surface, every reason not to
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2014-03-18 11:38 <DocScrutinizer05> ((table is not parallel to XY plane)) quite possible
2014-03-18 11:38 <DocScrutinizer05> what I elaborated on yesterday(?)
2014-03-18 11:38 <DocScrutinizer05> ((15 mills)) ouch!
2014-03-18 11:40 <DocScrutinizer05> ((imgur)) LOL
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2014-03-18 14:04 <kristianpaul> wb
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2014-03-18 14:54 <wpwrak> welcome back, internet ! :)
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2014-03-18 15:27 <kristianpaul> lol
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2014-03-18 18:59 <zrafa> wpwrak: where is libubb living? if I try to build libswd I get a lot of
2014-03-18 18:59 <zrafa> ben.c:(.text+0x4f8): undefined reference to `ubb_mem'
2014-03-18 18:59 <zrafa> ben.c:(.text+0x524): undefined reference to `ubb_mem'
2014-03-18 18:59 <zrafa> ben.c:(.text+0x550): undefined reference to `ubb_mem'
2014-03-18 18:59 <zrafa> but I do not see ubb_mem defined in ubb.h or something like that
2014-03-18 19:02 <wpwrak> the ben-blinkenlights project ;-)
2014-03-18 19:02 <zrafa> well, I am tired right now, maybe that is the error :)
2014-03-18 19:18 <wpwrak> undefined ubb_mem would suggest that you have the headers but not the library
2014-03-18 19:33 <zrafa> wpwrak: the problem was that I modified Makefile and had a wrong CFLAG :P
2014-03-18 19:35 <larsc> LDFLAG
2014-03-18 19:37 <wpwrak> LDLIBS ? :)
2014-03-18 19:38 <wpwrak> although a few years ago, you could still get away with putting libraries in LDFLAGS
2014-03-18 19:38 <wpwrak> must have been gnu ld getting a bit stricter that ended that
2014-03-18 19:48 <larsc> it now cares about the order of the libs or something
2014-03-18 19:49 <wpwrak> yup. they probably removed a loop that should never have been there
2014-03-18 19:50 <ysionneau> to get the same effect you can now use -Wl,--start-group and -Wl,--end-group or something like that
2014-03-18 19:51 <ysionneau> (and put your lib list between those two)
2014-03-18 19:52 <larsc> great, google's autocomplete suggests '-wl --start-group' when you type 'wl--start-g'
2014-03-18 19:52 <larsc> of course it doesn't find anything because - infront of a searchterm means it shouldn't appear in the result
2014-03-18 19:53 <larsc> 'Using this option has a significant performance cost. It is best to use it only when there are unavoidable circular references between two or more archives.'
2014-03-18 19:56 <ysionneau> well, for "small" projects with few libraries (which are not too big) you just don't care
2014-03-18 19:56 <ysionneau> but when building Android ou Gecko ou whatever indeed you care :)
2014-03-18 19:56 <ysionneau> you should not use that unless there is really a "circular dependency"
2014-03-18 19:56 <ysionneau> using it by default is bad design
2014-03-18 19:58 <wpwrak> having a circular dependency would probably constitute bad design on its own ;-)
2014-03-18 19:59 <ysionneau> well, that depends, but usually it's not the case
2014-03-18 19:59 <ysionneau> (I mean, usually you indeed don't have those)
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2014-03-18 21:27 <zrafa> larsc: wpwrak : the problem was a CFLAG because I commented out some var (# CC2543 = ../../ybox/fw/cc/) and then CFLAGS was no so nice with CFLAGS = -Wall -I$(LIBUBB)/include -I$(CC2543)
2014-03-18 21:28 <zrafa> wpwrak: so It ran gcc $(CFLAGS) -c source file
2014-03-18 21:29 <zrafa> dont know why then the error was showed by ld anyway (after that gcc of that source file it then runs gcc to build the binary with ld)
2014-03-18 21:38 <wpwrak> hmm, what would you do with ybox/fw/cc ? that's firmware for a chip you don't have :)
2014-03-18 21:40 <wpwrak> or does some other makefile invoke that ?
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2014-03-18 23:19 * whitequark finally got to preparing the copper hypophosphite solution
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2014-03-18 23:31 <zrafa> wpwrak: yes, libswd has usage of ybox/fw/cc and then I was removing cc stuff from Makefile
2014-03-18 23:32 <zrafa> wpwrak: so some -I option of gcc was empty when running make
2014-03-18 23:33 <wpwrak> yes, there's a header dependency. but you shouldn't need to build things over there, just have the files
2014-03-18 23:34 <wpwrak> anelok/anelok and anelok/ybox currently have a highly incestuous relationship with includes and even vpaths going back and forth. so have your barf bag ready :)
2014-03-18 23:35 <wpwrak> (if you get to building firmware, then ben-wpan/atusb/fw/ also becomes part of the family. but you don't need that)
2014-03-18 23:35 <wpwrak> (at last not yet)
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2014-03-18 23:45 <whitequark> bleargh, ammonia stinks
2014-03-18 23:45 <whitequark> like a thousand cats momentarily cried in terror and pissed all over the place
2014-03-18 23:56 <whitequark> ooo, very interesting
2014-03-18 23:56 <whitequark> http://we.easyelectronics.ru/HomeTech/metallorezist-rebyata.html#comment85692
2014-03-18 23:59 <whitequark> "persulphates etch on boundaries of copper crystals"