#linuxcnc | Logs for 2012-09-14

[00:40:08] <AdrianG> hi ppl
[00:40:23] <AdrianG> how much would it cost to make a custom phone protector
[00:40:28] <AdrianG> from aluminium :o
[00:42:23] <Jymmm> 3x the cost of the phone
[00:43:06] <AdrianG> wat
[00:43:12] <AdrianG> thats way too much
[00:43:44] <Jymmm> what, you wwant custom machining done for $40?
[00:46:07] <AdrianG> Yes.
[00:46:11] <AdrianG> +material costs.
[00:47:28] <Jymmm> Sure, for 10,000 units
[02:00:16] <DJ9DJ> moin
[02:41:18] <Loetmichel> mornin
[03:09:20] <V0idExp> hi all! it's me again. :)
[03:09:53] <V0idExp> this time I need help from someone who has experience with Mesa 7i43 Anything I/O board
[03:10:37] <V0idExp> I have the 3.3 pull-up jumper set, so when the 7i43 is powered, all its 48 I/O pins have 3.3V on them
[03:11:40] <V0idExp> the problem is the following... I have a LAM Technology LS1044 step driver, to which 7i43's pins are connected directly
[03:12:15] <V0idExp> As someone suggested yesterday, the step driver should consider LOW as 1 and HIGH as 0. After doing that setup, I powered on the mesa board.
[03:13:08] <cncbasher> hi
[03:13:22] <V0idExp> At that point, surprisingly, the LAM driver LEDs turned on, informing me that it is ENABLED (!!!)... measuring with a voltmeter the voltage at ENABLE input, I got a 1.2 V value
[03:14:16] <V0idExp> so, that what needed to be 3.3V, became 1.2V...
[03:14:28] <V0idExp> and it is interpreted as LOW, so, TRUE
[03:15:43] <V0idExp> why the voltage drops down that much? :(
[03:16:01] <cncbasher> are you using 3.3v dc supply to the opto's
[03:16:08] <cncbasher> why not 5v ?
[03:16:26] <V0idExp> I don't have optos
[03:16:32] <V0idExp> I mean, there's no daughterboard
[03:16:44] <cncbasher> the stepper drivers do
[03:16:53] <V0idExp> ah, yes
[03:16:57] <V0idExp> they have
[03:17:20] <V0idExp> the mesa board can't give more than 3.3V in output
[03:17:31] <V0idExp> only on one pin
[03:17:33] <V0idExp> the 49th
[03:18:06] <V0idExp> should I try to connect all my drivers' ENABLE pin to that 5.0V out?
[03:18:11] <cncbasher> so you have dc supply going to the + side of the opto of the stepper driver .. and the neg side of the opto to the 7I43 IO PIN
[03:18:52] <V0idExp> no, I have the + side of the opto connected to 7i43 IO pin and the - to the GND
[03:19:09] <V0idExp> which is common with mesa's GND
[03:19:15] <V0idExp> (machine GND, shortly)
[03:21:34] <cncbasher> you need the mesa card to pull down the ground side of the opto , then feed 5v dc to the opto +
[03:23:02] <cncbasher> have you that link to the stepper drivers again
[03:29:38] <V0idExp> thank you :)
[03:37:40] <cncbasher> voidExp: connect +step & +direction & +enable to 5v dc + supply side of the 7i43 , then the -step and -direction etc become the signal pins of the 7i43
[06:05:35] * jthornton will get a nap today no matter what!
[06:10:09] <archivist_> wake UP
[06:13:59] <jthornton> I'm awake now
[06:20:54] <r00t4rd3d> ha, see the new pics of kate middleton?
[06:21:22] <r00t4rd3d> with her teets out
[06:22:15] <r00t4rd3d> http://i.imgur.com/gfX38.jpg
[06:27:23] <theos> ...
[06:27:36] * theos is not opening that url
[06:28:47] <r00t4rd3d> is really not bad
[06:29:07] <r00t4rd3d> unless you are scared of a set of small boobs
[06:31:44] <theos> temptation just won in the end :/
[06:32:28] <r00t4rd3d> pervert
[06:32:32] <Tom_itx> hardly worth it ehh?
[06:32:49] <theos> looks like a fake to me
[06:33:13] <r00t4rd3d> it isnt
[06:33:33] <Tom_itx> because you took it?
[06:33:42] <theos> heh
[06:34:39] <psha[work]> Tom_itx: hey, what were you doing on #leaflet recently? :)
[06:35:00] <Tom_itx> wasn't me
[06:35:51] <psha[work]> probably that was Tom_L
[06:36:00] <psha[work]> however two users where synced with #emc
[06:36:10] <psha[work]> or that was just bug in logger :(
[06:36:25] <Tom_itx> must be
[06:36:28] <Tom_itx> never been there
[06:36:31] <Tom_itx> and he is i
[12:06:03] <IchGuckLive> Hi all
[12:06:35] <micges> hi
[12:06:37] <JT-Shop> hi
[12:10:16] <JT-Shop> Yea! lube pump working... not much left to do on the BP
[12:11:38] * JT-Shop thinks a celebration nap is in order now
[13:26:57] <JT-Shop> much better
[13:27:24] <mrsun> gah i need about 3000 usd ... :/
[13:27:48] <JT-Shop> I know a fellow in Nigera that will e-mail it to you
[13:27:52] <andypugh> You take paypal?
[13:30:59] <jdh> any reaction, rational will not have a positive effect on a religous whackjob.
[13:31:13] <jdh> <urk>
[15:30:00] <Aero-Tec> why so dead?
[15:30:26] <L84Supper> Friday is pub night :)
[15:31:33] <L84Supper> anyone looking for a vintage 1960 J head Bridgeport?
[15:39:34] <jdh> where?
[15:52:31] <Aero-Tec> how much?
[16:02:09] <JT-Shop> who?
[16:02:28] <L84Supper> it's near Chicago
[16:04:18] <DJ9DJ> gn8
[16:20:28] <Aero-Tec> to far way for me to look at getting it
[18:13:37] <jp_> HI
[18:13:55] <jp_> Awe what happened to the bot?
[18:17:33] <r00t4rd3d> disassemble
[18:18:22] <jp_> poor #5
[18:26:38] <jp_> JT-Shop: How's the BP coming?
[19:23:24] <Connor> What's the easiest way to dial in a a chuck on a rotary table..
[19:28:48] <Tom_itx> put a dowel in it and a last word indicator on the dowel
[19:45:53] <jp_> seen awallin_
[20:00:55] <Connor> last word indicator
[20:00:58] <Connor> ?
[20:01:02] <Tom_itx> yes
[20:02:11] <Tom_itx> http://www.travers.com/skulist.asp?r=s&n=||UserSearch1%3Dlast+word&q=block+id+87243+and+class+level3+id+29629
[20:02:33] <Connor> How is that different than a DTI ?
[20:02:45] <Tom_itx> finer
[20:03:07] <Tom_itx> travel is probably 1/8"
[20:03:22] <Connor> Well.. I don't have one of those.. a just of a DTI that's good for .0005"
[20:04:12] <Tom_itx> well use what you got then
[20:04:42] <Connor> Best to do it with the table flat or on end ?
[20:05:08] <ReadError> if you have 2 holes
[20:05:20] <ReadError> whats the easiest way to find the distance between them
[20:05:24] <ReadError> measure ID/OD ?
[20:05:27] <ReadError> and do the math?
[20:05:34] <Tom_itx> ReadError, measure the hole
[20:05:38] <Tom_itx> zero the dial indicator
[20:05:44] <Tom_itx> measure between the holes
[20:05:49] <Tom_itx> you will have the center distance
[20:05:56] <Tom_itx> provided the holes are the same diameter
[20:06:32] <Tom_itx> just don't forget to re'zero it before you try to use it for something else
[20:07:24] <ReadError> i have been using calipers
[20:07:43] <ReadError> but that is assuming the top of the hole is the actual diameter
[20:07:52] <ReadError> these china parts sometimes have a bit of a flair
[20:08:04] <Tom_itx> another way, measure between holes then subtract one diameter
[20:11:41] <cradek> I like to measure inner and outer and average the two numbers
[20:12:38] <Tom_itx> yeah probably a bit more accurate that way
[20:12:51] <ReadError> yea thats what i have been doing
[20:13:00] <cradek> I think those are the two easiest measurements to make
[20:13:24] <Tom_itx> if i want exact, i let the cad do it for me
[20:13:36] <ReadError> wasnt sure if they had a sweet tool that has like points
[20:13:41] <ReadError> that you could depress into each hole
[20:13:43] <Tom_itx> unless you're trying to reproduce a part
[20:13:45] <ReadError> and it measures that way
[20:13:58] <Tom_itx> ReadError it's called a CMM
[20:14:23] <cradek> they have cones that go on caliper jaws, but they probably don't really help
[20:15:00] <cradek> if your mill is good and tight, you can put a probe on it and have something like a CMM
[20:15:06] <Tom_itx> it's funny to see the data from a 'precision' reamed or bored hole
[20:15:25] <ReadError> well like i said, these are china holes
[20:15:32] <ReadError> so they arent exactly squared all the way through
[20:15:54] <cradek> my mill with its renishaw can measure a hole diameter better than any tool I have
[20:16:17] <Tom_itx> yeah
[20:16:24] <Tom_itx> we had a probe on a couple of the Okumas
[20:16:52] <Tom_itx> and the quality control room had a couple CMM's
[20:16:59] <ReadError> their site looks expensive ;)
[20:17:02] <Tom_itx> one manual and one auto
[22:34:25] <leadfooted> I've been looking for a means to make a buzzer beep (i.e. connecting a 5v buzzer to an out pin on a parallel port) when a job is done. Has anybody done anything like that? I've searched for a little bit but haven't come across anything yet
[22:35:55] <cradek> computers used to have beepers built-in. does yours?
[22:37:12] <leadfooted> Possibly. I guess my question is more aimed towards how to trigger a bell/buzzer/etc vs. what it is
[22:37:28] <cradek> oh so you're asking about the software side
[22:37:53] <leadfooted> Right, perhaps somehow tying into the M30? I'm not sure what's the best way to go about doing it either
[22:38:57] <cradek> http://linuxcnc.org/docs/2.5/html/gcode/m-code.html#_m100_to_m199_user_defined_commands_a_id_sec_m100_to_m199_a
[22:39:17] <cradek> run a script, use any command line program to make the sound you want
[22:39:42] <cradek> "beep" is a simple program that does the obvious thing if you have a working beeper
[22:40:44] <leadfooted> Oh interesting, that would make it easy to connect my civil defense siren
[22:41:12] <cradek> a regular sound card output could be useful too
[22:41:26] <cradek> the hardware is easy, ... well both the hardware and software are easy.
[22:42:24] <leadfooted> Yea, if you know where to look, thanks for pointing that out :)
[22:43:00] <cradek> welcome
[22:43:23] <leadfooted> I was able to setup a probe today so now I'm feeling ambitious and wanted to add an alarm
[22:43:53] <leadfooted> These: http://timeguy.com/cradek/01262579508
[22:44:06] <leadfooted> So thanks twice!
[22:44:13] <cradek> heh
[22:54:08] <r00t4rd3d> make a numitron tube display of xyz coordinates.
[22:55:32] <r00t4rd3d> i got some tubes i need to make into a clock some day
[23:09:08] <r00t4rd3d> cradek, you ever make a tube clock with an arduino?
[23:09:44] <leadfooted> Someone made a shield to easily do that
[23:10:05] <leadfooted> http://www.arduinix.com/
[23:10:34] <r00t4rd3d> they all make shields
[23:10:47] <leadfooted> yea
[23:11:17] <r00t4rd3d> seems like most people who make a clock or two, shield!
[23:14:49] <r00t4rd3d> ive got all the stuff to make one like this
[23:14:50] <r00t4rd3d> http://www.youtube.com/watch?v=vYPeBmyviFE&feature=plcp
[23:30:40] <leadfooted> This is terrible. I opened the box that my motherboard for my cnc setup came in and there's a buzzer
[23:31:02] <leadfooted> so I opened up my computer enclosure, checked out the board, and there's no slot for it!
[23:31:34] <leadfooted> And the amp for the buzzer isn't populated haha
[23:31:46] <leadfooted> Why even put it in the box?!
[23:45:41] <r00t4rd3d> old design
[23:46:01] <r00t4rd3d> solder a buzzer in there
[23:46:46] <r00t4rd3d> or harvest a buzzer from an alarm clock
[23:48:19] <r00t4rd3d> i have some spare buzzers :/
[23:55:11] <r00t4rd3d> http://imgur.com/a/FKNpI
[23:59:39] <r00t4rd3d> he looks like a cool dude