#emc | Logs for 2006-03-21

[00:05:08] <CIA-8> 03alex_joni * 10emc2/src/emc/rs274ngc/interp_convert.cc: updating feedrate on unitswitch (G20/G21). this is not part of the initial documented procedure, yet it's only sensible to be done
[00:10:54] <jepler> yay
[00:10:59] <jepler> alex_joni: isn't it your bedtime?
[00:11:10] <giacus> :(
[00:11:19] <giacus> is it the mine
[00:11:32] <alex_joni> jepler: long past mine
[00:13:19] <giacus> here are 01:13
[00:13:33] <giacus> there maybe 02:13
[00:13:42] <alex_joni> yeah, 2am .. again :)
[00:17:13] <giacus> * giacus giacus update some other album photos :P
[00:17:19] <CIA-8> 03alex_joni * 10emc2/src/hal/drivers/hal_stg.c: 2 bugfixes submitted by Xuecheng Xi. DAC not initialized on 0V, and autodetect failing in some cases
[00:25:57] <rayh> I just updated a lathe code page on the wiki. http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Lathe_Code
[00:26:45] <rayh> rayh is now known as rayh-away
[00:28:21] <giacus> nice
[00:28:46] <giacus> I also like new look of the wiki :)
[00:36:52] <cradek> rayh-away: holy cow, that's a lot of data - thanks
[00:42:25] <giacus> :-)
[00:48:53] <giacus> night
[00:56:14] <dmessier> ca va tous???
[00:56:57] <dmessier> mois je suis facheeeezzz
[01:00:40] <Jymmm> dmessier We no speaka chinese in here
[01:04:22] <rayh-away> rayh-away is now known as rayh
[01:04:42] <rayh> Welcome. We probably want to sort out a short list to start.
[01:04:48] <dmessier> good 'cause i got no chinese keyboard... yet
[01:05:56] <CIA-8> 03cradek * 10emc2/ (8 files in 3 dirs):
[01:05:56] <CIA-8> trajectory planner now supports spindle-synchronized motion. The "max"
[01:05:56] <CIA-8> configuration shows how to hook up the spindle encoder to hal. No work
[01:05:56] <CIA-8> in NML or the interp is done yet, so these new functions can't currently
[01:05:56] <CIA-8> be called, but they work.
[01:06:56] <dmessier> tres COOl ; )
[01:07:19] <dmessier> i see square corner milin' in our future
[01:09:30] <Jymmm> anyone have a list of 'good formulas' that you might like to see on a reference cheat sheet?
[01:10:01] <cradek> about what?
[01:10:28] <Jymmm> cradek: I have a converstion chart on one side, figure I'd add some handy formulas on the back side
[01:11:08] <cradek> jmk!
[01:11:13] <jmkasunich> hi
[01:11:17] <cradek> hi
[01:11:28] <dmessier> ihave a plethora of probe macros with math in 'em
[01:11:47] <dmessier> do most things..
[01:12:04] <cradek> jmkasunich: alex went to bed before he could do nml and interp for threading... but the motion part is in place and checked in on HEAD
[01:12:31] <jmkasunich> just reading the commit message now
[01:12:59] <cradek> I think it's surprisingly few lines of code
[01:13:25] <jmkasunich> I'm seeing that!
[01:15:10] <CIA-8> 03cradek * 10emc2/src/emc/kinematics/tp.c: obsolete comment
[01:41:02] <CIA-8> 03rayhenry * 10emc2/tcl/tkemc.tcl: enabled calibration in menu.
[01:42:55] <CIA-8> 03rayhenry * 10emc2/tcl/bin/emccalib.tcl: modified calib script for hal.
[01:47:04] <Jymmm> have you guys seen like 8.3mm commonly in catalogs/parts/material/specs/etc by chance?
[01:47:32] <Jymmm> 8.1 8.2 ... 8.8 8.9
[02:26:48] <CIA-8> 03jepler * 10emc2/src/ (Makefile hal/components/freqgen.c): didn't work when running 'make -C src' from the top directory
[02:28:02] <jepler> oops -- I wonder what I just committed in freqgen.c!
[02:29:10] <CIA-8> 03jepler * 10emc2/src/hal/components/freqgen.c: revert to revision 1.13
[02:31:27] <SWPadnos> jepler, can you run src/configure from the top dir, or does that need to be done from the src dir?
[02:42:35] <CIA-8> 03cradek * 10emc2/src/emc/ (15 files in 6 dirs):
[02:42:35] <CIA-8> G33 now gives spindle-synchronized motion at pitch defined by K word
[02:42:35] <CIA-8> see "max" sample configuration for hal configuration of spindle encoder.
[03:07:00] <jepler> whee!
[03:07:19] <CIA-8> 03cradek * 10emc2/nc_files/threading.ngc: test program for threading
[03:07:41] <jepler> cradek: for the quick reference: "G33 | K- | Spindle-synchronized motion"?
[03:09:25] <cradek> yes
[03:11:08] <jepler> for now I'll link to a nonexistent wiki page. How's this sound? http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?SpindleSynchronizedMotion
[03:11:25] <cradek> sure
[03:11:51] <jepler> updated
[03:12:39] <cradek> cool
[03:14:08] <jepler> easy enough to do
[03:14:16] <jepler> compared to implementing it or writing any real documentation
[03:26:48] <jepler> cradek: argh, you broke axis on the day I released 1.2.0?
[03:27:26] <cradek> doh
[03:27:37] <cradek> inexorably forward and all that
[03:28:10] <cradek> hope I at least get some credit for checking in the fix to head
[03:35:30] <jepler> 1.2.1 release on the website.
[03:37:07] <cradek> jepler: sorry about that...
[03:38:05] <jepler> no worries. it's funny, mainly.
[03:38:19] <jepler> emc2 is such a fast-moving target that axis isn't compatible with it for more than a few hours at a time.
[03:38:35] <jepler> I know that's not really true, but sometimes it feels that way.
[03:38:44] <jepler> I just hope I didn't screw anything up in the 1.2 -> 1.2.1
[03:41:07] <jepler> oops .. like forgetting to tag.
[03:42:04] <cradek> oops
[03:42:12] <jepler> tag added, no harm done
[03:42:28] <jepler> the number of tags is growing .. I guess that's the way of CVS.
[03:42:51] <cradek> yeah. I'm not sure what I think of it.
[03:43:08] <cradek> I wanted to leave all the TESTING tags in emc2, but I didn't want them to build up.
[03:43:08] <SWPadnos> oh - something I noticed when emc make sees axis
[03:43:36] <jepler> SWPadnos: yes?
[03:43:49] <SWPadnos> sorry - wasn't sure if you guys were still going :)
[03:44:11] <SWPadnos> is there any way to either quiet or prevent the many-file copy that happens every time?
[03:44:53] <jmkasunich> I thought that was already fixed
[03:45:00] <jepler> http://unpy.net/cgi-bin/viewcvs.cgi/axis/setup/monkeypatch.py.diff?r1=1.2;r2=1.3;f=h
[03:45:03] <jepler> I checked this in earlier today
[03:45:06] <SWPadnos> not on my BDI 4.30 machine
[03:45:15] <SWPadnos> ok, it's from a nightly tarball
[03:45:34] <SWPadnos> hmmm - wait, that should be a "latest" tarball
[03:46:06] <SWPadnos> it untars as axis-ps468
[03:46:34] <jepler> do you have two different axis directories in emc2/src?
[03:46:42] <jepler> it chooses one at random (based on directory order) when you ./configure
[03:46:52] <SWPadnos> no, one symlink to the latest
[03:47:01] <jepler> that change is ps465, so it should be in your tarball.
[03:47:19] <SWPadnos> ok, I'll check
[03:48:34] <jepler> in the latest -latest (ps475) that line is commented out
[03:48:52] <SWPadnos> yep, same here
[03:49:10] <jepler> if the line is commented out but you still get the "copy every time" behavior, I have to admit being confused.
[03:49:49] <SWPadnos> you use a symlink for the axis dir, right?
[03:49:55] <jepler> yes
[03:50:20] <jepler> are there any files from the future?
[03:50:28] <SWPadnos> there will be ;)
[03:50:28] <jepler> ~/emc2/src$ ll axis
[03:50:28] <jepler> lrwxrwxrwx 1 jepler jepler 10 2006-03-12 09:51 axis -> ../../axis
[03:50:30] <SWPadnos> one sec
[03:50:49] <CIA-8> 03cradek * 10emc2/configs/max/max.hal: remove unused testing stuff
[03:51:17] <SWPadnos> localhost:/Project/emc2/src# ls -ld axis
[03:51:19] <SWPadnos> lrwxrwxrwx 1 root root 20 2006-03-20 20:52 axis -> /download/axis-ps468
[03:51:20] <SWPadnos> localhost:/Project/emc2/src# date
[03:51:22] <SWPadnos> Mon Mar 20 22:52:30 EST 2006
[03:53:04] <jepler> hm. now I'm really confused.
[03:54:08] <SWPadnos> Linux localhost.localdomain #1 Thu Sep 29 00:08:05 BST 2005 i686 GNU/Linux
[03:54:10] <SWPadnos> Gnu C 3.3.5
[03:54:12] <SWPadnos> Gnu make 3.80
[03:54:13] <SWPadnos> util-linux 2.12p
[03:54:14] <SWPadnos> mount 2.12p
[03:54:16] <SWPadnos> module-init-tools 3.2-pre1
[03:54:16] <jepler> SWPadnos: it would be the dates of the files inside the axis source tree, not the date of the symlink
[03:54:18] <SWPadnos> e2fsprogs 1.37
[03:54:19] <SWPadnos> jfsutils 1.1.7
[03:54:20] <SWPadnos> xfsprogs 2.6.20
[03:54:22] <SWPadnos> pcmcia-cs 3.2.5
[03:54:24] <SWPadnos> PPP 2.4.3
[03:54:25] <SWPadnos> Linux C Library 2.3.5
[03:54:27] <SWPadnos> Dynamic linker (ldd) 2.3.5
[03:54:28] <SWPadnos> Procps 3.2.1
[03:54:30] <SWPadnos> Net-tools 1.60
[03:54:31] <SWPadnos> Console-tools 0.2.3
[03:54:33] <SWPadnos> Sh-utils 5.2.1
[03:54:34] <SWPadnos> rtai-info output, in case it's helpful
[03:54:36] <SWPadnos> sure
[03:55:10] <jepler> With CVS head, here's the output I get from running the axis setup.py install:
[03:55:10] <jepler> jepler@sofa:~/emc2/src/axis$ python setup.py -q install
[03:55:10] <jepler> Building for EMC2 in /home/jepler/emc2
[03:55:10] <jepler> jepler@sofa:~/emc2/src/axis$
[03:56:22] <SWPadnos> localhost:/Project/emc2/src/axis# env EMCROOT=/Project/emc2 python setup.py install
[03:56:23] <SWPadnos> Building for EMC2 in /Project/emc2
[03:56:25] <SWPadnos> ['/Project/emc2/include'] ['/Project/emc2/lib'] ['-Wl,-rpath,/Project/emc2/lib']
[03:56:26] <SWPadnos> running install
[03:56:28] <SWPadnos> running build
[03:56:29] <SWPadnos> running build_py
[03:56:31] <SWPadnos> running build_ext
[03:56:32] <SWPadnos> running build_scripts
[03:56:34] <SWPadnos> running install_lib
[03:56:36] <SWPadnos> running install_scripts
[03:56:37] <SWPadnos> changing mode of /Project/emc2/bin/emctop to 755
[03:56:38] <SWPadnos> changing mode of /Project/emc2/bin/axis to 755
[03:56:40] <SWPadnos> changing mode of /Project/emc2/bin/mdi to 755
[03:56:42] <SWPadnos> running install_data
[03:56:46] <SWPadnos> multiple times in a row
[03:56:57] <jepler> Doesn't make pass the flag "-q"?
[03:56:57] <SWPadnos> and lots more when I run make from emc, possibly due to changed headers / libs or something
[03:57:04] <SWPadnos> i dunno
[03:57:25] <cradek> mine does
[03:57:45] <SWPadnos> yes it does - hold on one
[03:57:56] <SWPadnos> didn't notice that in your command line
[03:58:33] <SWPadnos> localhost:/Project/emc2/src/axis# env EMCROOT=/Project/emc2 python setup.py -q install
[03:58:35] <SWPadnos> Building for EMC2 in /Project/emc2
[03:58:37] <SWPadnos> ['/Project/emc2/include'] ['/Project/emc2/lib'] ['-Wl,-rpath,/Project/emc2/lib']
[03:58:46] <SWPadnos> much better, but still not what I get from an emc make
[03:59:02] <jepler> What's the command that emc2 make invokes?
[03:59:22] <SWPadnos> except now, when there are no changes, and I'm talking to the expert
[04:00:05] <jepler> of course
[04:00:50] <SWPadnos> damn, I hate that
[04:00:58] <jepler> and on that note ... goodnight!
[04:01:09] <SWPadnos> heh - see you. thanks
[04:01:13] <SWPadnos> (all fixed!)
[04:37:23] <Roguish> ...
[04:37:25] <Roguish> ... ...
[04:37:26] <Roguish> ... ...
[04:37:29] <Roguish> ... ...
[04:37:34] <Roguish> ... ...
[04:37:39] <Roguish> ... SWPadnos, how does one update the emc2-testing on ubuntu? i installed according to...
[04:37:44] <Roguish> ...cradek's 'emc2 install' on his web site.
[04:38:36] <jmkasunich> wft is with all the blank space?
[04:38:45] <jmkasunich> wtf even
[04:38:57] <SWPadnos> if it's already installed, the system updater will let you know when there are updates to the packages
[04:39:06] <SWPadnos> or you can run synaptic
[04:39:25] <Roguish> what is synaptic?
[04:40:41] <SWPadnos> it's the gnome package manager
[04:40:48] <jmkasunich> in the bottom left are three words: Applications Places System
[04:41:14] <jmkasunich> click System->Administration->Synaptic Package Manager
[04:41:42] <Roguish> got it.
[04:42:12] <SWPadnos> if the notifier isn't telling you that there's an update available, then it's likely the packages are up to date
[04:43:41] <Roguish> looks to be up to date. installed version is 'testing-2006-03-12'
[04:44:03] <jmkasunich> thats the latest
[04:45:35] <Roguish> i've been watching the dialog on lathe threading. i agree with the 'kiss' priciple. keep the variables to an absolute minimum.
[05:24:29] <jmkasunich> time for sleep, night all
[05:29:58] <SWPadnos> SWPadnos is now known as SWP_Away
[05:33:05] <SWPadnos> SWPadnos is now known as SWP_Away
[07:23:56] <anonimasu> morning
[07:24:10] <Jymmm> Morning sunshine!
[07:24:26] <anonimasu> *falls over*
[07:24:59] <Jymmm> get your mind out of the gutter and sit your ass back in the chair and finish your breakfast!
[07:25:17] <anonimasu> I've been working a bit..
[07:25:21] <anonimasu> while laying in bed
[07:25:36] <Jymmm> I bet the Mrs appreciates that
[07:25:48] <anonimasu> she's not here right now :)
[07:26:00] <Jymmm> I bet the Mistress appreciates that
[07:26:11] <anonimasu> ah, there isnt one yet ^_^
[07:26:16] <Jymmm> lol
[07:26:23] <Jymmm> I bet the CNC appreciates that
[07:26:36] <anonimasu> yeah
[07:26:42] <Jymmm> (I'm bound to get one right if I just play the odds)
[07:26:51] <anonimasu> :)
[07:27:05] <anonimasu> I still got mounting the adapter on the mill left
[07:27:14] <anonimasu> and machining/turning a drawbar
[07:27:34] <anonimasu> need to measure/lock it in place aginst the driveshaft
[07:27:35] <Jymmm> eeeewwww drawbar
[07:27:44] <Jymmm> automatic?
[07:27:47] <anonimasu> nope, not yet
[07:27:52] <anonimasu> but there' plenty of room for that
[07:27:55] <Jymmm> even worse then
[07:28:11] <anonimasu> at the moment I dont care
[07:28:23] <anonimasu> I need to be able to use my tooling :)
[07:28:29] <Jymmm> fair enough
[07:28:55] <anonimasu> I can always build a spindle/buy a automatic drawbar later
[07:29:06] <anonimasu> the design is simple if you have enough toom
[07:29:08] <anonimasu> roo
[07:29:08] <anonimasu> m
[07:29:25] <anonimasu> there
[07:29:37] <Jymmm> tool charger?
[07:29:41] <anonimasu> yeah
[07:29:56] <Jymmm> oh, ok
[07:29:56] <anonimasu> err there's a \/ in the top of the spindle, so you can have the shaft protrusing through
[07:30:23] <anonimasu> then a spring loaded bar and the [] gripper goes through it..
[07:31:09] <anonimasu> then you push the bar down and the tool will come out as the [] comes out of the /\ at the bottom
[07:31:37] <Jymmm> show me the pics when complete
[07:32:07] <anonimasu> it's not like I have time for making one but it itsnt that complicated
[07:32:14] <anonimasu> only trouble is the gripper..
[07:32:26] <anonimasu> I'm not machining that myself
[07:32:33] <anonimasu> ever..
[07:33:21] <Jymmm> lol
[07:33:47] <anonimasu> I can draw you a pic in a few minutes..
[07:34:10] <Jymmm> anonimasu nah, no biggy, I can wait. in the middle of something
[07:34:32] <anonimasu> ah well.. nm..
[07:35:21] <Jymmm> I'll me interested for sure, need to come up with something for myself - tool changer wise
[07:35:26] <Jymmm> someday
[07:37:17] <alex_jon1> morning all
[07:37:39] <anonimasu> HEY ALEX
[07:37:40] <anonimasu> err
[07:37:42] <anonimasu> morning
[07:38:39] <alex_jon1> darn, I'm really sleepy :)
[07:38:47] <alex_jon1> was up till 2am hunting a bug
[07:39:41] <anonimasu> I saw that..
[07:39:46] <anonimasu> I couldnt sleep :/
[07:41:36] <anonimasu> did you find it?
[07:46:45] <Jymmm> either of you familure with AVR's ?
[07:47:31] <anonimasu> yes
[07:48:04] <Jymmm> I was wondering what what I need to replicate this in a AVR (hold on, getting link now)
[07:49:29] <Jymmm> http://www.maxim-ic.com/quick_view2.cfm/qv_pk/1339
[07:49:34] <Jymmm> 7221
[07:50:04] <anonimasu> replicate?
[07:50:16] <Jymmm> functionality wise
[07:50:17] <anonimasu> why not that chip?
[07:50:22] <Jymmm> it's $6/ea
[07:50:32] <anonimasu> oh, a mux..
[07:50:46] <anonimasu> and well, some amps..
[07:50:53] <anonimasu> there's good stuff on that kind of interfacing on the net..
[07:51:18] <Jymmm> I've already interfaced it, just trying to figure a cheaper solution
[07:51:37] <Jymmm> it's also a 5x7 matrix driver too
[07:51:40] <anonimasu> ulnXXXX and interface it manually
[07:52:12] <Jymmm> it's the 5x7 I'm talking about
[07:52:39] <anonimasu> making the display?
[07:52:57] <anonimasu> I thought you were talking about the chip
[07:53:00] <Jymmm> like for a scrolling sign
[07:54:26] <anonimasu> hm, you can always use led's..
[07:55:05] <Jymmm> each chip can control 35 LEDS, and the chips can be connected together serially
[07:55:30] <anonimasu> http://www.bojn.net/~an0n/drawbar.jpg
[07:55:39] <anonimasu> drew it up while slacking
[07:55:40] <anonimasu> :)
[07:55:57] <anonimasu> brb shower
[07:56:10] <Jymmm> use soap LOTS of soap
[08:01:50] <anonimasu> quick one ;)
[08:01:57] <anonimasu> the thrust washers goes in on top
[08:02:03] <anonimasu> and you screw something on there..
[08:02:26] <anonimasu> the top of it/surface to put pressure when changing tools on..
[08:03:01] <Jymmm> is that gonna hold a tool fixed enough?
[08:03:15] <anonimasu> why wouldnt it?
[08:03:25] <Jymmm> I dont know, I'm asking
[08:03:37] <anonimasu> the thrust washers will apply as much force as needed to keep the tool locked..
[08:03:44] <anonimasu> ()()()
[08:04:06] <anonimasu> the gripper and taper in the drawbar will have to be bought for safety..
[08:04:32] <anonimasu> but, then you push the drawbar down and the tool will release...
[08:04:48] <alex_jon1> anonimasu: http://www.robcon.ro/emc/IMG_2011-crop.jpg
[08:05:03] <anonimasu> alex_jon1: is the idea totally insane?
[08:05:08] <anonimasu> nice!
[08:05:12] <alex_jon1> anonimasu: I have no idea :D
[08:05:16] <alex_jon1> alex_jon1 is now known as alex_joni
[08:05:22] <anonimasu> Jymmm: that's kind of how the real drawbars look
[08:05:33] <Jymmm> anonimasu ah, ok.
[08:05:40] <alex_joni> anonimasu: http://www.robcon.ro/emc/IMG_2016.JPG
[08:06:07] <anonimasu> Jymmm: thrust washers wont drop the tool even if you loose power and they provide very very much force :)
[08:06:26] <Jymmm> anonimasuJust show me the pics when complete =)
[08:06:51] <anonimasu> it'll be a while
[08:07:05] <anonimasu> got enough stuff to keep the mill running for � a year :
[08:07:24] <Jymmm> lol
[08:07:29] <anonimasu> piling up
[08:07:53] <anonimasu> Jymmm: the idea wouldnt work on the old machine due to lack of space..
[08:08:32] <anonimasu> the bore were straight all through it.. and 12mm..
[08:12:18] <anonimasu> http://www.tsudakoma.co.jp/mta/english/product/image/44_20-1.gif
[08:12:43] <anonimasu> there you have how the gripper works
[08:12:43] <anonimasu> :)
[08:13:57] <Jymmm> cool
[08:15:31] <anonimasu> I think you can use the bar to push the tool out too..
[08:15:39] <anonimasu> if you look at the drawing..
[08:15:56] <anonimasu> since the bar that goes into the gripper goes down through it..
[08:16:11] <anonimasu> to get rid of the trouble with the taper sticking
[08:17:21] <Jymmm> ah ok
[08:18:05] <anonimasu> going to have a look if I can get grippers from my retailer of stuff..
[08:18:10] <anonimasu> skf should sell them..
[08:45:42] <anonimasu> *yawn*
[08:56:44] <alex_joni> argh.. just spent a lot of time for a trivial problem :(
[08:57:06] <alex_joni> seems joomla doesn't like if you use something like domain.com/ instead of www.domain.com/
[08:58:51] <anonimasu> :/
[09:04:38] <anonimasu> I think I found a source for pull stuf retainers
[13:12:06] <CIA-8> 03rayhenry * 10emc2/tcl/bin/emccalib.tcl: added HAL lookup for values. No save yet.
[13:49:25] <CIA-8> 03alex_joni * 10emc2/tcl/bin/emccalib.tcl: temporary removal
[13:51:04] <CIA-8> 03alex_joni * 10emc2/tcl/bin/emccalib.tcl: readded emccalib.tcl
[14:35:35] <CIA-8> 03jepler * 10emc2/src/hal/utils/scope_horiz.c: don't mention the extension of scope_rt, and suggest using halcmd to load it.
[14:38:30] <giacus> giacus is now known as giacus_afk
[14:45:50] <CIA-8> 03jepler * 10emc2/src/hal/utils/scope_horiz.c:
[14:45:50] <CIA-8> Try to load scope_rt automatically. This does work if the right 'halcmd' is on
[14:45:50] <CIA-8> the path. If the load fails, the OK/Cancel dialog is shown just as before.
[15:30:59] <jepler> *huff huff huff*
[15:31:04] <jepler> * jepler gets back in from shovelling snow
[15:31:21] <cradek> oh I don't want to hear it :-P
[15:31:50] <cradek> is there a ton of it? I haven't started digging out yet
[15:32:08] <jepler> it's pretty deep
[15:32:22] <jepler> but you have a snow blower, right? I won't feel too sorry for you
[15:32:49] <jepler> did you stay home today too?
[15:34:10] <alex_joni> jepler: it's 9:34 over there.. so I'm sure he did
[15:34:23] <alex_joni> he's usually up a lot earlier ;)
[15:39:59] <cradek> yeah, I don't know if our street has been cleared
[15:40:19] <cradek> I don't even know who does it, but after a while, someone always does
[15:51:30] <bpmw> morning folks
[15:52:11] <jepler> http://www.sparkfun.com/commerce/product_info.php?products_id=683
[15:52:39] <jepler> (not really on-topic, but neat)
[15:53:06] <bpmw> Hi cradek, I talked to jmk last night and he said he could not help me. So what was the name of the guy who converts mill drills again?
[15:56:03] <alex_joni> jepler: very neat indeed
[16:18:42] <fenn> i've got my eye on the $20 mini color lcd
[16:25:22] <SWP_Away> that LED board is about the cost of the LEDs. what a great deal
[16:25:27] <SWP_Away> SWP_Away is now known as SWPadnos
[16:45:59] <anonimasu> hm
[17:11:28] <jepler> man I just can't get the hang of gtk+
[17:12:20] <jepler> I've got some ideas about improving halscope, but all my expertise is in Tk
[17:19:08] <Bo-Dick> has anyone ever connected the L295 solenoid driver in a application?
[17:26:30] <Bo-Dick> in fact what i wanna do is to connect the circuit inside the L295 since i can't get the L295.
[17:28:23] <anonimasu> that dosent make any sense
[17:28:48] <Bo-Dick> why not
[17:29:11] <anonimasu> in fact what i wanna do is to connect the circuit inside the L295 since i can't get the L295.
[17:29:26] <anonimasu> you want to do what with the l295 that you cant get?
[17:30:01] <Bo-Dick> replicate the internal connection with other components
[17:30:16] <anonimasu> so you are making a copy of it?
[17:30:23] <anonimasu> http://www.datasheetcatalog.com/datasheets_pdf/L/2/9/5/L295.shtml
[17:30:54] <Bo-Dick> i have no choice
[17:31:20] <Bo-Dick> they also cost 8$ each and i need four of them
[17:31:43] <anonimasu> well, look at the page..
[17:31:50] <anonimasu> "logic circuits" dosent say too much about it
[17:32:05] <Bo-Dick> thats precisely the problem
[17:32:41] <Bo-Dick> but if i knew how it worked i could figure that out maybe. this is why i wonder if anyone is familiar with it.
[17:33:06] <anonimasu> it's just a amp..
[17:33:13] <anonimasu> look at the uln2xxxx series
[17:33:50] <Bo-Dick> are the coils labeled L1 and L2 the load?
[17:34:10] <anonimasu> what are you driving with it?
[17:34:19] <anonimasu> is is just solenoids or could you use relays?
[17:34:26] <anonimasu> or is it the stepper?
[17:34:40] <anonimasu> if so have a look look at the uln2xxxx seris :)
[17:34:43] <Bo-Dick> i'm gonna use this for a stepper driver
[17:34:45] <anonimasu> series..
[17:35:01] <anonimasu> you'd have to create amps yourself but they should be cheaper
[17:35:32] <Bo-Dick> when you say amps do you mean the switcher then?
[17:35:48] <anonimasu> nope, I mean mosfet amplifiers..
[17:36:00] <anonimasu> http://www.elfa.se/images/highres/h6718.jpg
[17:36:10] <jepler> I don't think L295 is appropriate for controlling bipolar steppers, and it would take 2 to control a unipolar stepper (one half per winding).
[17:36:13] <anonimasu> 1.25$
[17:36:28] <anonimasu> is the price of the ULN200x
[17:36:44] <anonimasu> you can feed amps seven stage darlington driver..
[17:37:03] <anonimasu> err with one like that
[17:37:24] <jepler> I've used ULN2803 in a low-performance unipolar stepper driver
[17:37:41] <SWPadnos> the ULN2xxx are limited to 100mA or 200mA per pin, and 500mA for the package, aren't they?
[17:37:42] <jepler> (http://axis.unpy.net/etchcnc)
[17:37:47] <jepler> I don't recommend them for high performance
[17:37:55] <anonimasu> yeah.. but you can drive a amp with them..
[17:38:03] <anonimasu> jepler: read up on what he wants to do
[17:38:12] <anonimasu> :)
[17:38:39] <anonimasu> jepler: why didnt they perform as you wanted?
[17:39:32] <jepler> anonimasu: Well, I was using motors with current <.3A/winding, and Vdrive = Vnominal. You just don't get high performance with that kind of stepper motor, and with a low Vdrive.
[17:39:55] <jepler> they performed fine for the application shown.
[17:40:04] <anonimasu> jepler: yeah, I was thinking using it to feed some power amplifiers..
[17:40:34] <anonimasu> jepler: not directly driving the stepper from them..
[17:41:08] <alex_joni> hello
[17:41:17] <anonimasu> hey alex
[17:41:22] <alex_joni> hey anders
[17:41:27] <alex_joni> how's it?
[17:41:32] <anonimasu> busy
[17:41:35] <anonimasu> been at a customer all day
[17:41:49] <alex_joni> that can be good sometimes
[17:42:15] <jepler> anonimasu: might work for that
[17:44:22] <jepler> isn't switching time important, and aren't darlingtons fairly slow?
[17:45:21] <alex_joni> you'd need FET's if you want to gt some performance
[17:45:29] <alex_joni> and driving those is a bit trickier
[17:47:24] <giacus_afk> hey guys, what you think about this http://www.sjbaker.org/projects/scanner/
[17:48:24] <giacus_afk> giacus_afk is now known as giacus
[17:57:09] <jepler> giacus: sounds interesting. Are there any samples of the generated meshes?
[17:57:25] <giacus> thats what I was looking for ..
[17:57:33] <giacus> no samples there around
[17:57:52] <SWPadnos> if you look for "image based modeling", you may find some interesting stuff
[17:58:04] <giacus> he talk about small objects ..
[17:58:15] <giacus> wonder how small
[17:58:44] <giacus> SWPadnos: where ?
[17:58:52] <SWPadnos> google?
[17:58:58] <giacus> I was looking at the c file there
[17:59:07] <SWPadnos> ah
[17:59:31] <giacus> if Im right it tajke a video before
[17:59:32] <SWPadnos> it's another technique for determining the 3D aspects of a scene, for CG effects
[17:59:39] <giacus> and after extract the images
[17:59:49] <SWPadnos> yes, make a video of one revolution, split into images, run the program
[17:59:56] <giacus> http://www.sjbaker.org/projects/scanner/scan_extract.cxx
[18:00:14] <SWPadnos> after modifying it for the setup you used
[18:01:10] <giacus> I want to try it
[18:01:18] <giacus> at least is cheap ..
[18:01:38] <SWPadnos> if you can get a handheld laser scanner cheap, you may be able to do some experiments
[18:01:41] <jepler> I worried the line-making lens might be expensive
[18:01:55] <giacus> jepler: infact
[18:02:05] <SWPadnos> isn't it scanned?
[18:02:43] <SWPadnos> well, I guess I should look more carefully at the diagram before asking that ;)
[18:02:45] <giacus> I found some 'thing' similar to this http://www.agea.info/livelli_laser.htm
[18:03:00] <giacus> around E. 20, used to align frames
[18:03:35] <giacus> I have to check the error tollerance of the line
[18:04:28] <SWPadnos> http://www.solarstop.net/mrshims/l58.asp
[18:05:27] <giacus> nice
[18:05:55] <giacus> what I found talk about 1.4 mm max error for 30 cm lenght
[18:05:56] <SWPadnos> http://www.meshtel.com/liner.htm
[18:06:01] <giacus> seems to much
[18:06:04] <SWPadnos> much less expensive - $19.00
[18:06:16] <SWPadnos> but it's only the lens, no holder
[18:06:32] <SWPadnos> good spread too, 60 degrees
[18:06:52] <alex_joni> SWPadnos: LED scanners are good enough thse days
[18:07:44] <giacus> probably
[18:07:46] <SWPadnos> the scanning would be a problem, unless the software takes that into account
[18:08:00] <SWPadnos> using a video camera is also a problem, because it's scanned
[18:08:06] <jepler> with the video approach, you have to complete one full rotation per frame, at least 15fps
[18:08:10] <jepler> yeah what swp said
[18:08:10] <giacus> scan quality could also depend on camera used
[18:08:26] <SWPadnos> the ideal is to use a still camera, and move the table some fixed increment every shot
[18:08:36] <SWPadnos> much easier for people who are used to motors and things ;)
[18:08:43] <SWPadnos> you could do it with emc :)
[18:08:44] <jepler> scanning the laser + rotating the subject seems problematic no matter the frame length
[18:08:52] <giacus> SWPadnos: a stepper
[18:08:57] <SWPadnos> ding!
[18:09:09] <SWPadnos> make a turntable, and use an M code to trigger the camera
[18:09:17] <giacus> 200/step rev should be ok I suppose
[18:09:19] <SWPadnos> then use looping in the G-code
[18:09:21] <giacus> full step
[18:09:30] <giacus> or half
[18:09:30] <SWPadnos> probably not, for larger objects
[18:09:44] <SWPadnos> not for the turntable, but fine for the stepper
[18:10:06] <SWPadnos> it also depends on how narrow the laser line is
[18:10:09] <jepler> use pin-per-winding and software microstepping!
[18:10:39] <SWPadnos> or just use a relative A move on a rotary table :)
[18:11:02] <SWPadnos> g1A+0.5
[18:11:10] <SWPadnos> M102 (take picture)
[18:11:12] <SWPadnos> loop
[18:11:29] <SWPadnos> after the appropriate G91 or 92 or whatever relative mode is
[18:11:58] <giacus> SWPadnos: that could be ok with pc camera
[18:12:07] <giacus> waht with external camera ?
[18:12:16] <giacus> how you shot ?
[18:12:35] <SWPadnos> you can use a film camera if you want. it just needs a "remote trigger" port
[18:12:49] <SWPadnos> most consumer digital cameras don't have it
[18:13:01] <giacus> uhm
[18:13:12] <SWPadnos> using GPhoto, you should be able to trigger and read the image from the command line
[18:13:26] <SWPadnos> for a digital camera connected via USB or FireWire
[18:13:37] <SWPadnos> that's the M102
[18:13:49] <giacus> no clue, I never tried it
[18:13:54] <SWPadnos> (writing it is aleft as an exercise for the reader ;) )
[18:14:03] <giacus> my camera is a sony cybershot dcs60
[18:15:33] <SWPadnos> ok, the underlying library is libgphoto2
[18:15:45] <SWPadnos> http://www.gphoto.org
[18:16:11] <SWPadnos> it looks like the cybershot isn't supported
[18:16:37] <giacus> I was looking if it has any optional remote controller
[18:17:00] <giacus> K, dinner time
[18:17:06] <SWPadnos> they're usually IR remotes. it needs a wired or computer-controlled remote
[18:17:07] <giacus> later, ty
[18:17:10] <SWPadnos> see you
[18:17:20] <giacus> giacus is now known as giacus_afk
[18:23:39] <fenn> where's that dmessier when you need him
[18:25:49] <alex_joni> * alex_joni yawns
[18:26:08] <fenn> alex how good are you at understanding spoken french?
[18:26:38] <Bo-Dick> fenn: why do you need to understand french?
[18:27:27] <fenn> that's a hard question to answer, but basically i want to understand some song lyrics
[18:28:45] <Bo-Dick> fenn: if you know how its spelled you could translate with babelfish
[18:28:48] <SWPadnos> "Sunday Girl", by Blondie?
[18:29:18] <fenn> i dont know how it's spelled, but the real question is whether it's actually french or just someone's idea of what french might be
[18:29:29] <SWPadnos> what song?
[18:30:51] <alex_joni> fenn: try me..
[18:31:13] <alex_joni> although my french is seriously rusty :/
[18:33:47] <fenn> * fenn kicks computer
[18:34:14] <Bo-Dick> fenn: is it important?
[18:35:03] <fenn> Bo-Dick: no
[18:35:12] <fenn> http://fenn.dyndns.org/pub/irc/Cowboy Bebop OST 3 - 14 - We Qui Non Coin.mp3 <- second half of the song
[18:35:31] <fenn> i can understand "tu l'amor chet moi" but thats about it
[18:39:17] <Bo-Dick> fenn: :D
[18:40:02] <Bo-Dick> fenn: sounds like japanese
[18:40:12] <fenn> yes i understand the japanese fine
[18:40:45] <alex_joni> fenn: still downloading :(
[18:47:13] <alex_joni> fenn: it's french alright
[18:47:36] <alex_joni> but not a very good accent.. and I'm not understanding much
[18:48:04] <fenn> it may not make sense even if composed of real words
[18:48:23] <fenn> there's a theory that this singer is an artificial intelligence.. ha!
[18:49:31] <alex_joni> what's her name?
[18:49:50] <fenn> gabriela robin
[18:49:57] <fenn> supposedly
[18:51:25] <alex_joni> j'eu suis sa mosokona
[18:51:25] <alex_joni> wichet de bous sobleu
[18:51:25] <alex_joni> que se apusizi lepou zi ne
[18:51:25] <alex_joni> j'eu mi si tu lamour, tu lamour chet moi
[18:51:25] <alex_joni> hmm-hmm
[18:51:28] <alex_joni> j'eu suis sa mosokona
[18:51:31] <alex_joni> ruchet de bous sobleu
[18:51:33] <alex_joni> que se apusizi lepou zi ne
[18:51:36] <alex_joni> j'eu mi si tu lamour, tu lamour chet moi
[18:51:38] <alex_joni> hmm-hmm
[18:51:41] <alex_joni> adetu la mien ka fe tu notra
[18:51:43] <alex_joni> abelru hii ri soa
[18:51:46] <alex_joni> a lamour
[18:51:48] <alex_joni> ma-mii...
[18:51:51] <alex_joni> andetu la rien ka fe tu notra
[18:51:53] <alex_joni> abelru hii ri sora
[18:51:56] <alex_joni> a lamour
[18:51:58] <alex_joni> j'eu me tu lire ti la me tushe kyuela
[18:52:01] <alex_joni> j'eu suis sa mosokona
[18:52:04] <alex_joni> wichet de bous sobleu
[18:52:06] <alex_joni> que se apusizi lepou zi ne
[18:52:09] <alex_joni> j'eu mi si tu lamour, tu lamour chet moi
[18:52:12] <alex_joni> hmm-hmm
[18:52:14] <alex_joni> j'eu suis la mo saa (ahh ahh...)
[18:53:04] <fenn> hey you just copied that from somewhere else
[18:53:06] <alex_joni> fenn: close enough ;)
[18:53:10] <alex_joni> http://www.geocities.com/gabriella_robin/lyrics.html#Wo Qui Non Coin
[18:53:13] <fenn> it's all wrong
[18:53:27] <alex_joni> yup
[18:54:44] <fenn> miel is honey in french right?
[18:55:19] <alex_joni> yes
[18:58:29] <fenn> * fenn gives up
[18:59:11] <giacus_afk> giacus_afk is now known as giacus
[18:59:38] <alex_joni> I think I get this: "andetu la rien ka fe tu notra" should actually be "... hier un cafe d'un autre"
[19:01:21] <alex_joni> and then it's something like "avec de ... y ... aaa l'amour"
[19:03:05] <fenn> ageru hi ri sora == i'll give you the sun in the sky (something like that)
[19:04:50] <Bo-Dick> i would need some help from you guys who know something about the L295 solenoid driver. what i would like to is to replicate it's function since i can't get the L295.
[19:05:11] <Bo-Dick> what i need help with is that i don't exactly know how to interconnect all parts.
[19:06:30] <Bo-Dick> www.st.com/stonline/books/pdf/docs/1332.pdf
[19:08:23] <Bo-Dick> i was thinking about using the sketch in the first page of the datasheet. it suggests a comparator, a timer and some logics could do the job somehow.
[19:09:18] <fenn> see Rs2? that's the current sense resistor
[19:10:07] <fenn> i dont know what the R Q FF2 S box does, but it's probably some kind of control algorithm
[19:10:36] <jepler> fenn: that's a standard flip-flop
[19:10:41] <jepler> .. I think
[19:12:01] <fenn> ok so that keeps it from switching too fast
[19:13:43] <fenn> * fenn wonders what's in "logic circuits"
[19:17:16] <Bo-Dick> i didn't find the answer to that in the sheet :(
[19:18:17] <Bo-Dick> could it be a proprietary design that is secret?
[19:19:06] <fenn> hardly
[19:19:13] <fenn> i bet its a bunch of and-gates
[19:20:59] <Bo-Dick> are the transistor symbols supposed to do the switching task?
[19:21:06] <fenn> yes
[19:21:20] <Bo-Dick> why are two transistors needed for each driver?
[19:21:32] <fenn> i was just wondering that
[19:23:03] <Bo-Dick> its also funny that the diodes aren't built in but needs to be added externally
[19:23:31] <fenn> i think diodes usually use a different chemistry
[19:24:04] <Bo-Dick> ...and thus are hard to build in?
[19:25:23] <fenn> motor drivers use "soft recovery diodes" and i dont really know what that means
[19:26:01] <Bo-Dick> oops. i've used standard D4002 diodes in my driver :S
[19:26:07] <anonimasu> heh
[19:26:31] <jepler> "soft recovery"? I've heard of "fast recovery"...
[19:26:51] <fenn> Soft recovery minimizes ringing to expand the range of conditions under which the diode may be operated without using additional snubber circuitry, while reducing EMI and improving system reliability.
[19:26:55] <alex_joni> * alex_joni prods fenn
[19:27:59] <anonimasu> fenn: didnt get any info on airmuscles today
[19:28:06] <fenn> why not?
[19:28:07] <anonimasu> fenn: as I were gone from the office :)
[19:28:45] <anonimasu> 6because I were working..
[19:28:53] <fenn> you fool!
[19:28:57] <anonimasu> haha
[19:29:12] <alex_joni> fenn: I wrote you smthg in /msg
[19:29:34] <fenn> * fenn reads
[19:29:55] <fenn> * fenn finds it hard to believe it's a 40-yr old woman singing
[19:31:54] <anonimasu> http://www.bojn.net/~an0n/drawbar.jpg somone give me som tips
[19:32:19] <anonimasu> :)
[19:34:03] <anonimasu> or a oppinion if my design will fail..
[19:34:39] <bill2or3> * bill2or3 looks
[19:35:05] <anonimasu> the bar on the top goes into the tube..
[19:35:09] <bill2or3> a drawbar and collett in one?
[19:35:17] <bill2or3> or what?
[19:35:20] <anonimasu> from below..
[19:35:35] <anonimasu> then there's a nut, and thrust washers below it...
[19:35:35] <bill2or3> or a morse taper will screw into the bar?
[19:35:39] <anonimasu> nope..
[19:35:44] <anonimasu> retaining knob's..
[19:35:46] <fenn> are you using belleville washers?
[19:35:56] <anonimasu> fenn: not decided yet..
[19:36:36] <anonimasu> fenn: fenn spring washers *has no clue*
[19:36:42] <fenn> same thing
[19:36:44] <anonimasu> yeah..
[19:36:45] <anonimasu> I am
[19:36:54] <anonimasu> fenn: that'll keep it locked in all cases
[19:37:26] <anonimasu> I dont know about forces yet, but I can always check how much the drawbar needs..
[19:37:33] <anonimasu> on a regular mill..
[19:37:53] <anonimasu> dosent really matter I can use huydralics to push it down..
[19:38:00] <anonimasu> the limit is probably how much my mill can take..
[19:38:00] <anonimasu> :)
[19:38:07] <anonimasu> bill2or3: no screws..
[19:38:57] <anonimasu> http://images.google.se/imgres?imgurl=http://www.techniksusa.com/images/cnaps.jpg&imgrefurl=http://www.techniksusa.com/wood/psbt.htm&h=142&w=190&sz=6&tbnid=f_tV3ME1gmdqdM:&tbnh=72&tbnw=97&hl=sv&start=5&prev=/images%3Fq%3Dpull%2Bstud%26svnum%3D10%26hl%3Dsv%26lr%3D%26sa%3DG
[19:40:29] <anonimasu> so is the design plain stupid?
[19:41:15] <bill2or3> I'm still unclear on how it'll hold your cutting bit.
[19:41:41] <CIA-8> 03jepler * 10emc2/src/ (configure configure.in): add --enable-simulator (doesn't work yet)
[19:41:54] <bill2or3> * bill2or3 looks at it some more.
[19:42:02] <anonimasu> bill2or3: you have a pull stud on your toolholder..
[19:42:07] <anonimasu> it goes into the retainer socket..
[19:42:19] <anonimasu> thrust washers pushes the retainer bar up.. and locks the tool..
[19:42:26] <fenn> why is the top of the spindle flared like that?
[19:43:00] <bill2or3> so it's a drawbar that grips the pullstud, and a pullstud holds the bit?
[19:43:05] <anonimasu> yeah
[19:43:08] <bill2or3> I assume this is for an automatic tool changer?
[19:43:09] <anonimasu> the toolholder..
[19:43:14] <anonimasu> yeah
[19:43:24] <anonimasu> fenn: the spindle is tapered at the top
[19:43:40] <CIA-8> 03jepler * 10emc2/src/ (configure configure.in): whitesspace fix
[19:43:48] <anonimasu> on the inside of the bore
[19:44:10] <fenn> what compresses the gripper?
[19:44:20] <CIA-8> 03jepler * 10emc2/src/rtapi/sim_ulapi.c: fix up a few obviously broken things in the sim rtapi implementation. still doesn't work.
[19:44:23] <anonimasu> seen a gripper?
[19:44:29] <bill2or3> I'm no expert or anything, but I dont see any obvious problems with the design, as long as you can get a repeatable tool-height after tool changes.
[19:44:39] <fenn> yeah the pic you posted earlier had a little ring that compressed it
[19:44:48] <bill2or3> I seem to remember seeing a web page detailing a DIY tool changer setup.
[19:44:49] <anonimasu> yeah..
[19:44:55] <bill2or3> and it was a similar setup.
[19:45:06] <anonimasu> it screws on the bar..
[19:45:09] <fenn> buildyouridea.com
[19:45:24] <anonimasu> or well it's at the bottom of the retainer bar..
[19:45:33] <anonimasu> it's kind of wrong
[19:45:38] <anonimasu> hold on and I'll get you a pic
[19:45:40] <bill2or3> yeah, that's the one.
[19:46:07] <anonimasu> they look like [ ]
[19:46:10] <anonimasu> on the inside
[19:46:15] <anonimasu> and are tapered..
[19:46:42] <jepler> note: those above commits do not constitute a promise to finish the simulator
[19:47:19] <bill2or3> I dont know how he's centering the bits, seems like the set-screw would push it off to one side.
[19:47:35] <bill2or3> unless it's got like .0005 clearance for the hole.
[19:47:39] <anonimasu> me?
[19:47:49] <anonimasu> there's a tool holder that goes into it..
[19:47:52] <alex_joni> jepler: rest assured.. we won't put you up against the wall
[19:47:53] <anonimasu> then there's a larger taper on the outside..
[19:47:56] <bill2or3> no, the one here: http://buildyouridea.com/cnc/atc/phase_three/phase_three.html
[19:47:56] <anonimasu> that's just the drawbar..
[19:48:03] <anonimasu> atleast my design..
[19:48:08] <bill2or3> I mean the bit-to-holder alignment.
[19:49:07] <fenn> http://www.tsudakoma.co.jp/mta/english/product/image/44_20-1.gif <- see the little ring that compresses the gipper?
[19:49:17] <anonimasu> ah that one
[19:49:23] <anonimasu> yep.. that's the one I were looking for
[19:49:45] <anonimasu> that show's exactly how i'll look
[19:49:53] <bill2or3> are you building a whole spindle then?
[19:49:58] <anonimasu> nope
[19:50:02] <anonimasu> just the drawbar..
[19:50:18] <bill2or3> ahh, ok.
[19:50:32] <anonimasu> the only trouble with toolchanging is the clearance inside small spindles..
[19:50:39] <bill2or3> for a cnc-converted mill?
[19:50:42] <anonimasu> yeah..
[19:50:54] <bill2or3> I'm working on a cnc mill from scratch.
[19:50:59] <bill2or3> slowly.
[19:51:10] <anonimasu> :)
[19:51:25] <anonimasu> I need to make stuff with it once it gets done too ;)
[19:51:28] <bill2or3> but I dont really know hwat I'm doing, so I'm just kind of makinfg it up as I go, and hoping for the best.
[19:51:30] <anonimasu> but, toolchager is just _overkill_
[19:51:38] <bill2or3> I'm sure I'll end up re-doing most of it a few times.
[19:51:43] <anonimasu> but I really like that
[19:51:49] <CIA-8> 03cradek * 10emc2/ (4 files in 4 dirs):
[19:51:49] <CIA-8> change sim_encoder to take speed in rpm, not rps, since this is
[19:51:49] <CIA-8> the way the rest of emc seems to work (matches iocontrol's spindle
[19:51:49] <CIA-8> speed control output)
[19:51:49] <CIA-8> update "max" halconfig to allow Sxxx control of the emulated spindle,
[19:51:50] <CIA-8> and fix threading.ngc accordingly. Altogether this makes a great
[19:51:52] <CIA-8> test bed for lathe threading stuff.
[19:51:58] <fenn> yah go for a turbotool.. much cooler :P
[19:52:47] <fenn> http://pergatory.mit.edu/perg/awards/TURBOTOO.html
[19:53:01] <anonimasu> haha
[19:53:08] <anonimasu> that'd rip aluminium ;)
[19:53:14] <anonimasu> like several tons per hour
[19:53:32] <anonimasu> somehow I bet emc wouldnt feed enough for a 100kw spindle
[19:53:52] <alex_joni> anonimasu: don't bet money on that
[19:53:59] <anonimasu> alex_joni: are you sure?
[19:54:03] <anonimasu> * anonimasu hopes he's wrong
[19:54:10] <anonimasu> I havent seen the new tp ;)
[19:54:11] <alex_joni> yeah.. what IPS do you need?
[19:54:41] <fenn> well you kinda need the resolution too for it to be worthwhile
[19:54:45] <anonimasu> 100000rpm..
[19:55:00] <anonimasu> and 0,03 per tooth..
[19:55:12] <anonimasu> 3 flute cutter..
[19:55:34] <fenn> a measly 15 in/sec
[19:55:43] <anonimasu> :)
[19:55:43] <alex_joni> anonimasu: easily
[19:55:53] <anonimasu> really?
[19:55:59] <alex_joni> I guess :D
[19:56:01] <anonimasu> 0,03mm that is ;)
[19:56:11] <fenn> 2 inches a sec
[19:56:18] <fenn> i figured it would be more
[19:56:23] <anonimasu> yeah :/
[19:56:45] <anonimasu> but with that kind of spindle you can take 0,3 if you like..
[19:56:49] <anonimasu> 100kw :D
[19:56:50] <fenn> .03 is not a very heavy cut
[19:57:03] <anonimasu> yeah
[19:57:11] <anonimasu> it's a comfy chipload when running dry
[19:57:51] <anonimasu> ;)
[19:58:01] <anonimasu> alex_joni: the new tp seems very nice
[19:58:16] <alex_joni> anonimasu: try it out.. it's really worth it
[19:58:24] <anonimasu> I will
[19:58:25] <alex_joni> especially the G64 Pxx
[19:58:31] <anonimasu> once I get the machine togther
[19:58:40] <alex_joni> cradek: seen that?
[19:58:44] <alex_joni> YAY
[19:58:52] <alex_joni> other people are losing their 'e's too
[20:00:07] <jepler> alex_joni: do you mean "loseing"?
[20:00:07] <anonimasu> now for the fun part, how to get tools on place in the spindle ^_^
[20:01:07] <cradek> looseing
[20:01:52] <fenn> * fenn hunts for the missing e
[20:02:24] <alex_joni> cradek: looseing sounds good
[20:02:33] <alex_joni> but I think I'll start typing cradk
[20:02:44] <cradek> soundes
[20:02:49] <fenn> goode
[20:03:07] <cradek> vowels have no meaning anyway
[20:03:13] <fenn> we should switch to hebrew
[20:03:14] <alex_joni> indd
[20:03:51] <alex_joni> fenn: I might ask my cousin to come in here and translate to coptic.. that should be fun ;)
[20:04:24] <ValarQ> i thought mr Joni was busy learning swedish :)
[20:04:47] <alex_joni> ValarQ: no more swedish for me.. at least for a while
[20:04:53] <ValarQ> to bad
[20:05:05] <alex_joni> although I should/could go to skaane again next month
[20:05:20] <ValarQ> have you listened to the 4:th lesson?
[20:05:49] <ValarQ> hmm, that skåneland again huh
[20:06:57] <alex_joni> don't think I listnd to #4.. what's the URL ?
[20:07:07] <ValarQ> http://download.slayradio.org/mastering_swedish_-_lesson_4.mp3
[20:07:13] <alex_joni> thx
[20:08:26] <ValarQ> be sure to use some of the phrases in skåne :P
[20:08:46] <alex_joni> heh
[20:15:04] <anonimasu> * anonimasu is trying to find thoose pull stud retainer sockets
[20:16:44] <fenn> anonimasu: you should make something like the tormach system
[20:17:07] <anonimasu> fenn: no something like the commercial spindles..
[20:17:17] <fenn> tormach is better
[20:17:26] <anonimasu> fenn: tormach is toys..
[20:17:27] <anonimasu> :)
[20:17:39] <SWPadnos> tormach also happens to be one of the companies that copies the Geckodrives ...
[20:17:46] <anonimasu> I've got a large spindle..
[20:18:12] <fenn> well, hitler was a vegetarian, and a painter
[20:18:27] <anonimasu> :)
[20:18:38] <SWPadnos> and very religious, apparently
[20:18:38] <anonimasu> fenn: what I want is like the pic you posted
[20:18:43] <anonimasu> http://www.tsudakoma.co.jp/mta/english/product/image/44_20-1.gif
[20:18:47] <fenn> http://lmwatts.com/forsale.html
[20:19:08] <anonimasu> the toolholders?
[20:19:13] <fenn> yah
[20:19:18] <fenn> not quite how i had remembered them
[20:19:24] <anonimasu> this isnt a router..
[20:19:33] <anonimasu> it's a real mill..
[20:20:06] <fenn> anyway, there are problems with cat and hsk tapers
[20:20:16] <anonimasu> what problems?
[20:20:20] <fenn> and r8
[20:20:38] <anonimasu> if it's the sticking you are referring to it's not really a problem..
[20:20:56] <fenn> ok
[20:21:09] <anonimasu> you can use the bar to push the tool out..
[20:21:17] <fenn> it's not good for accuracy either
[20:21:53] <fenn> the tool is shorter than you expect because it draws up into the spindle
[20:22:46] <anonimasu> mk?
[20:22:48] <anonimasu> err
[20:24:00] <fenn> SWPadnos: i notice they don't sell tor-drive anymore
[20:24:53] <anonimasu> fenn: cant remember the taper now..
[20:25:05] <anonimasu> I think it's a mk taper..
[20:26:05] <SWPadnos> fenn, I see that it's listed on the components page, but there's no spec page
[20:26:17] <SWPadnos> it's also about $50 more than a Gecko, but what the hey
[20:26:53] <anonimasu> fenn: so it shouldnt be a problem at all..
[20:28:25] <anonimasu> fenn: the real problem is that I am too much of a wuzz to machine a socket ;)
[20:28:44] <anonimasu> as it's life or death if the tool falls out :)
[20:29:30] <alex_joni> Far, f.r f.r f.r? Nej, f.r f.r lamm
[20:29:38] <bpmw> Hi again, cradek you there?
[20:30:03] <fenn> anonimasu: no need to machine a socket, you only need one collet
[20:30:20] <anonimasu> fenn: trying to find somone to sell them
[20:53:10] <alex_joni> heh.. did you guys see Pamela Anderson's latest video?
[20:53:15] <alex_joni> http://blogs.linux.ie/xeer/images/Pamela.jpg
[20:59:08] <Bo-Dick> in the block diagram at the bottom of the first page in http://www.st.com/stonline/books/pdf/docs/1332.pdf i would like to know where each driver step needs two switching transistors. could someone explain this?
[21:04:49] <Bo-Dick> the reason i wanna know is that i wanna try to connect the block diagram in an attempt to replicate the L295 circuit.
[21:11:55] <jepler> Bo-Dick: Look at the signal waveforms. Q1 turns off when the set current is reached, while Q2 stays on whenever EN is low.
[21:12:32] <jepler> Bo-Dick: and when Q2 turns off it changes the rate at which the inductor current changes
[21:13:12] <jepler> I think it frees the bottom of the inductor from being pulled to GND, letting it float instead.
[21:28:06] <A-L-P-H-A> aj, why would I want to see an old hag?
[21:28:17] <A-L-P-H-A> and no, I haven't clicked it.
[21:28:21] <A-L-P-H-A> send me something nice to look at.
[21:28:50] <cradek> I ordered my spindle encoder...
[21:29:07] <A-L-P-H-A> cradek, what resolutions?
[21:31:06] <cradek> 100 counts/400 pulse per rev
[21:31:43] <cradek> can't be too high because I'm going to use software counting
[21:32:37] <cradek> this should let me do a few hundred rpm
[21:36:35] <fenn> you could use a mouse wheel :)
[21:36:42] <fenn> 32 lines
[21:36:45] <cradek> need an index pulse
[21:37:38] <fenn> opto interrupter and a thingy
[21:39:23] <cradek> too late, I spent my moneys already
[21:40:27] <fenn> think it might be a good idea to count the number of pulses between index pulses?
[21:41:07] <cradek> no, I expect the user to deal with that in hal, and feed emc 0.0->1.0 per rotation
[21:41:28] <fenn> how do you do that in hal?
[21:41:44] <cradek> well the encoder module has scaling
[21:42:04] <fenn> no i mean sanity checks
[21:42:23] <fenn> 1 rev is 400 pulses so you should see 400 pulses before you reset
[21:42:51] <fenn> something like that
[21:43:24] <cradek> emc doesn't count pulses, that's hal's job, emc just reads the spindle position from hal
[21:44:43] <cradek> it might be a little hard to set up correctly until we get some of the sample configs done
[21:48:19] <giacus> wooo
[21:48:31] <giacus> baby giacus is online http://giacus.altervista.org/photo/famiglia/giacomo/index.html
[21:48:34] <giacus> :P
[21:48:44] <giacus> since 1968 ! bahahauaahau
[21:52:10] <giacus> how fast passed these years :(
[21:52:13] <giacus> damn it
[21:55:45] <CIA-8> 03cradek * 10emc2/configs/max/max.hal: get rid of wavy spindle
[22:36:16] <A-L-P-H-A> giacus... you need a damn warning on there.
[22:36:28] <A-L-P-H-A> there's not safe for work stuff on there... men in speedos! eeew.
[22:37:10] <giacus> :P
[22:40:06] <giacus> next album will be for the new cnc
[22:40:30] <giacus> I have to solve an issue before
[22:40:41] <giacus> talking to les
[22:42:09] <giacus> since I cant find servomotors I need with the lowest inertia we calculated here around,
[22:42:39] <giacus> I'd like to know how much should I increase the torque for any motor to get the same performance
[22:42:50] <giacus> without spent the double :(
[22:43:01] <giacus> any nm more are $$$$
[22:43:32] <A-L-P-H-A> giacus, CNC + women... good. CNC + Attractive Naken women = AWESOME.
[22:44:01] <giacus> the damn units used for calculations and mixed are driving me crazy
[22:44:08] <giacus> I hate the math :/
[22:44:24] <A-L-P-H-A> math's the easy part... being not lazy is the hard one for me.
[22:44:32] <A-L-P-H-A> gotta go. grocery shopping
[22:44:44] <giacus> I'd like to erase mm from the world !
[22:44:47] <giacus> or inches
[22:44:50] <giacus> liters
[22:44:55] <giacus> meters
[22:44:59] <giacus> :(���
[22:45:04] <giacus> lbs
[22:45:10] <A-L-P-H-A> stick with SI units.
[22:45:37] <giacus> its absurd ..
[22:45:51] <giacus> years ago I was using a software in dos
[22:46:00] <giacus> to calculate loadbox speakers
[22:46:22] <SWPadnos> don't forget links, rods, chains, fathoms, furlongs, drams and a whole lot more
[22:46:22] <giacus> well , it was using qt for speakers mass
[22:46:27] <giacus> tons !
[22:46:34] <giacus> 00000000000.1234534 tons
[22:46:38] <SWPadnos> grains are a nice one
[22:46:41] <giacus> to be clean :(
[22:46:56] <giacus> damn numners
[22:47:52] <giacus> black beast
[22:48:03] <fenn> get units dammit
[22:48:08] <fenn> apt-get install units
[22:48:20] <giacus> :(��
[22:48:40] <fenn> i do wish that program came installed by default on all distros
[22:49:09] <giacus> maybe I could recalculate the X axis nm needed, I know the mass is 50 Kg
[22:49:12] <fenn> best 232k of disk space i ever used
[22:49:20] <giacus> but Ive no idea about other axis
[22:49:36] <giacus> the criteria has been used
[22:49:40] <fenn> how do you know the mass is 50kg?
[22:49:50] <fenn> you havent even built it yet!
[22:49:52] <giacus> the gantry is 50 kg
[22:50:07] <giacus> but les talked about cut force too
[22:50:17] <giacus> lot of things I cant remember now..
[22:50:27] <fenn> bah cut force is for bridgeports :P
[22:50:37] <fenn> * fenn is a HSM fan
[22:50:38] <giacus> cutting force
[22:51:27] <giacus> mm, tomorrow i'll take some screenshot to show how actually is configured..
[22:52:32] <giacus> the only thing I know is that 3.5 nm motor and 5 nm motor are very differente in price :(
[22:52:42] <giacus> sometime double
[22:52:51] <fenn> weird
[22:53:02] <giacus> and 3.5 should be a lot, too ..
[22:54:32] <giacus> fenn: http://cgi.ebay.com/BALDOR-PERMANENT-MAGNET-SERVO-MOTOR_W0QQitemZ7598901737QQcategoryZ25292QQrdZ1QQcmdZViewItem
[22:54:47] <giacus> has been selled for $ 19 ?
[22:54:55] <SWPadnos> the bastards
[22:54:59] <fenn> you FOOL!
[22:55:02] <SWPadnos> I missed it by minutes
[22:55:02] <giacus> haha
[22:55:09] <fenn> fools!
[22:55:13] <giacus> the nick is familiar :P
[22:55:19] <SWPadnos> yeah
[22:55:23] <giacus> ;P
[22:55:43] <SWPadnos> damned wife's birthday - wasn't at the computer at the right momnet
[22:55:47] <SWPadnos> moname, either
[22:55:50] <SWPadnos> asdf daa sd
[22:55:54] <SWPadnos> moment, that was
[22:57:49] <giacus> im not a good ebayer :(
[22:58:03] <SWPadnos> it helps to have an atomic clock
[22:58:42] <giacus> the only thing I bought was a router time ago
[22:58:46] <giacus> E. 50
[22:58:55] <giacus> with electronic control
[22:59:24] <giacus> Feedback Score: 2 Positive Feedback: 100%
[22:59:26] <giacus> hahaha
[23:00:06] <SWPadnos> heh. I've gotten a lot of stuff for the machine shop on eBay - score 157, 100% positive
[23:00:15] <giacus> I seen
[23:00:19] <giacus> congrats :)
[23:00:31] <SWPadnos> thank you, thank you ;)
[23:00:44] <giacus> but I have to say
[23:00:49] <SWPadnos> it's good, because I may start selling little CNC and computer-related doohickeys on eBay
[23:00:52] <giacus> you're lucky because
[23:01:15] <giacus> US offers big choices for motors
[23:01:28] <giacus> looking at IT oer EU, are not so much
[23:01:45] <SWPadnos> there are a lot available, but not many that are really *good* (and inexpensive)
[23:01:52] <giacus> and.. consider the ship for US, lost any advantages
[23:04:05] <giacus> SWPadnos: what term you use to search for motors ?
[23:04:09] <giacus> servomotor ?
[23:04:15] <giacus> dc motor ?
[23:04:17] <SWPadnos> nope - one sec, I'll copy it
[23:04:35] <SWPadnos> it's long, because I don't want brushless or AC servos
[23:04:48] <giacus> oh.. ok
[23:04:52] <giacus> me too
[23:05:38] <SWPadnos> (servo motor* , servomotor*) -(ac, brushless, bldc)
[23:05:52] <giacus> cool , thanks :)
[23:06:14] <SWPadnos> putting things in parenthesis will select any one of the terms separated by commas
[23:06:16] <SWPadnos> sure
[23:06:25] <giacus> nice
[23:06:47] <SWPadnos> once you go through the list once, sort by listing date, and save is as a favorite search
[23:06:54] <SWPadnos> that'll list new ones at the top
[23:07:01] <giacus> yeah, ty
[23:07:04] <SWPadnos> oops - save it
[23:07:07] <SWPadnos> no problem
[23:07:14] <giacus> tried it work fine :P
[23:07:24] <SWPadnos> damn - here's the LED jymmm wants:
[23:07:35] <SWPadnos> http://cgi.ebay.com/White-LED-Set-of-50-XtraBright-10mm-115000mcd-Low-Ship_W0QQitemZ7601627806QQcategoryZ66952QQrdZ1QQcmdZViewItem
[23:08:23] <fenn> wow 50 of em
[23:08:43] <SWPadnos> I bought a lot of LEDs from that guy last year, they're good
[23:08:57] <fenn> what's the point of big led's?
[23:09:25] <SWPadnos> I guess you can only get so many photons out of a given silicon area
[23:09:33] <SWPadnos> and heat becomes a problem
[23:09:35] <fenn> but the die is the same size
[23:10:20] <SWPadnos> not necessarily
[23:23:31] <SWPadnos> what gets me about those big LEDs is that the forward current is still 20 mA, and the voltage only 3.8 or so, so roughly 75 mW
[23:24:51] <SWPadnos> though they've only got a 25 degree spread, so they get a brightness advantage
[23:28:48] <giacus> optical is really going on
[23:29:20] <giacus> I eard about a new material to produce very high performace sun cells
[23:29:42] <giacus> it seems not be popoular yet
[23:29:49] <giacus> maybe for the high cost
[23:31:22] <giacus> could be nice to get the same energy of 1x1 mt cell in 1x1 cm :P
[23:31:45] <bill2or3> Mmmled
[23:31:46] <SWPadnos> that would be awfully hard, since you only have 1/10000 the light ;)
[23:32:25] <skunkworks> wait for quantum dot led's ;)
[23:33:13] <giacus> solar cell *
[23:33:53] <bill2or3> micro stirlings.
[23:33:57] <fenn> some decent thermophotovoltaics would blow up the economy, and wouldnt even require breaking any laws of physics
[23:34:04] <bill2or3> i *heart* moving parts.
[23:34:34] <SWPadnos> fenn, thermophotovoltaics still provide power from the sun, right?
[23:34:42] <fenn> well, not really
[23:34:51] <SWPadnos> where do they get it?
[23:34:52] <giacus> fenn: yeah, wuoldbe a revolution
[23:34:58] <fenn> from a flame usually
[23:35:13] <jepler> http://lmn.web.psi.ch/shine/tpv1.htm
[23:35:16] <fenn> any heat source capable of emitting IR in a particular wavelength
[23:35:32] <fenn> there are ways of enhancing the emissivity
[23:35:46] <SWPadnos> ok, so you're still providing energy with a carbon-cycle flame
[23:35:48] <bill2or3> there's so much waste heat *everywhere*, if we could harness it it'd be a huge deal.
[23:36:13] <fenn> they made a TPV car and drove it around the country
[23:36:37] <fenn> but nobody cared
[23:36:41] <SWPadnos> hmmm - that would be a good thing, essentially recycling of power
[23:36:49] <SWPadnos> since most wast is heat
[23:36:51] <SWPadnos> waste
[23:37:11] <jepler> so I just replace my CPU heatsink with this, eh?
[23:37:12] <SWPadnos> cool. - thanks for the term, hadn't heard of it before
[23:37:15] <fenn> has to be a pretty high temperature to get the blackbody radiating in the right region
[23:37:40] <fenn> like 700-1300C
[23:38:03] <SWPadnos> oops - about to miss a meeting. see you later
[23:38:06] <SWPadnos> SWPadnos is now known as SWP_Away
[23:38:20] <fenn> you could run a microsterling off a cpu though
[23:38:28] <fenn> seems kinda silly to me though
[23:38:39] <bill2or3> BMW made a prototype car with a secondary steam engine that generates electricity from exhaust heat.
[23:38:52] <bill2or3> pretty recently, like within the last year.
[23:38:54] <fenn> yeah it's called a "turbocharger"
[23:39:04] <bill2or3> heh
[23:39:19] <bill2or3> but with an extra layer of conversion losses
[23:39:48] <bill2or3> here's a blurb: http://www.gizmag.com/go/4936/
[23:40:00] <fenn> * fenn prepares to be underwhelmed
[23:40:54] <bill2or3> they claim %15 gain, which isn't insignifigant.
[23:41:45] <anonimasu> I dont see why not you can use the turbocharger as a generator..
[23:41:54] <anonimasu> also :)
[23:42:14] <fenn> you gain efficiency and power with a turbo.. looking for numbres
[23:42:16] <bill2or3> yeah, same idea.
[23:42:40] <bill2or3> this is probablly more efficient, since you're generating heat at all rpm's.
[23:43:22] <bill2or3> I can't think of any reason not to do both.
[23:44:26] <fenn> i can think of lots of reasons not to do anything
[23:44:50] <fenn> "why bother" is at the top, thanks jepler for the inspiration :P
[23:45:50] <bill2or3> heh. "stuff sucks"
[23:47:30] <jepler> It was never my intention to inspire anyone.
[23:47:53] <jepler> anyway, Dogbert said it best: "Try not to think of yourself as an organic pain-collector rushing toward oblivion."
[23:48:49] <fenn> i am a pain-conducting superfluid
[23:49:40] <fenn> superfluids wallow in self pity until placed in a container, which they promptly try to escape
[23:50:52] <fenn> there's no other way to be an optimistic pessimist
[23:51:51] <jepler> oh noes! Microsoft plans to delay the consumer launch of its new Vista operating system until January 2007.
[23:52:04] <jepler> http://news.bbc.co.uk/go/rss/-/2/hi/business/4831374.stm
[23:52:33] <jepler> "[A] a version for corporate customers will be available in November this year"
[23:52:48] <bill2or3> I can hardly wait.
[23:52:51] <bill2or3> * bill2or3 yawns.
[23:55:16] <fenn> hm so what will we make fun of in the meantime?
[23:55:48] <anonimasu> night guys