#linuxcnc | Logs for 2012-11-29

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[00:21:28] <t12> swin 4
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[00:40:54] <tjb1> What do you cut the hobbed sections with Tom_itx ?
[00:41:17] <tjb1> A tap?
[00:41:19] <Tom_itx> i used a 3mm tap
[00:41:43] <tjb1> Did you make the diameter so they overlap perfect?
[00:42:05] <Tom_itx> i tried
[00:42:17] <Tom_itx> ghetto calculations
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[00:42:30] <tjb1> Heh, have you seen the qu-bd? It drives with a gear
[00:42:36] <Tom_itx> nope
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[00:43:11] <tjb1> http://www.qu-bd.com/gallery/
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[00:44:13] <Tom_itx> easy way to make one for sure
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[00:46:50] <tjb1> I wish I had a lathe and mill
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[00:50:37] <hdokes> say tjb1 ... yo know if there is any video showing that head in operation?
[00:50:48] <hdokes> I have a mill and two lathes
[00:51:06] <hdokes> actually... guess if I had to count... I have 3 mills and 3 lathes
[00:51:42] <tjb1> Here is their old kickstarter - http://www.kickstarter.com/projects/qu-bd/open-source-universal-3d-printer-extruder-dual-ext
[00:52:50] <tjb1> http://www.youtube.com/watch?v=-5g3K6ivM1I
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[00:55:31] <tjb1> Good video showing it and their cube - http://www.youtube.com/watch?v=Kjy9ykduN5E
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[01:01:24] <hdokes> cool
[01:02:28] <gmouer> trying to setup a M168 code but it does not seem to function, does not throw any errors, can somebody peek and see what I did wrong perhaps? http://pastebin.com/5TYWEuSc
[01:04:01] <gmouer> it just disconnects the spindle fwd and rev and reconnects them flipped (for rear mounted tuning tools on lathe)
[01:06:08] <andypugh> That seems like an elaborate way to do it.
[01:06:28] <tjb1> Why can't you call M4?
[01:07:21] <gmouer> Its a gang tool lathe, I implemented G68/G69 to flip the coordinate system for rear mounted tooling, it would be nice to have the spindle reverse function at the same time
[01:07:52] <gmouer> that way I can use bigJohns ngcgui routines unmodified
[01:08:33] <andypugh> I think you could do it all in HAL.
[01:09:00] <gmouer> after I get M168 and M169 working I plan on putting that in the G58/G69 subroutine so its automatic
[01:09:24] <andypugh> Or just setp the scalemin and scalemax of the analog pins the other way round
[01:10:01] <gmouer> but I need to switch back and forth during a gcode program, when I go from front to rear tuning tools
[01:10:19] <andypugh> Aye, I got that part.
[01:10:25] <gmouer> I don't understand why the code I did does not work?
[01:10:54] <andypugh> Neither do I, but I don't like rewiring HAL if it is avoidable.
[01:12:07] <andypugh> You could set up a mux2 into the pwm scale, and setp the input in an M100
[01:12:09] <gmouer> the M code example in the doc writes to a hal pin to actuate a collet closer, I followed that example
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[01:13:00] <andypugh> Yes, writing a value to a HAL pin (or even a parameter) is fine. Actually rewiring is fine too, mainly, but the pins might point at random memory briefly during the swap.
[01:13:40] <gmouer> wouldn't that require rewiring within the hal again when I switch front/rear tools?
[01:14:39] <gmouer> the spindle is off when I issue the M168, and then a few seconds later I try a M3 and the spindle goes the same direction it did before the M168 call
[01:15:01] <andypugh> Maybe. I guess you are using a VFD with forward/reverse contacts
[01:15:04] <gmouer> its like the signal delete and then the net pin connections are not happening
[01:15:11] <gmouer> yes, a vfd
[01:15:54] <gmouer> what is strange is the M168 takes on the MDI line, no errors, but M3 remains unchanged, same direction
[01:16:18] <gmouer> I called M170 for kicks, (M170 not assigned), and that does throw a error
[01:16:22] <andypugh> Does Machine->Show HAL Config show the old wiring or the new wiring?
[01:16:31] <gmouer> old
[01:16:56] <andypugh> Try #!/bin/bash ?
[01:17:43] <gmouer> I am not familiar with bin/bash at all, I just copied that line from the sample file
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[01:18:17] <gmouer> I have no idea what bin/bash is all about, searched for about a hour the other night with no luck
[01:18:28] <andypugh> It's the terminal
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[01:18:58] <andypugh> (technically the Bourne Again SHell)
[01:19:03] <gmouer> I haee #!/bin/bash as the first line in my M168 file
[01:19:31] <andypugh> No, you have #!bin/bash
[01:19:49] <andypugh> (Not that I know which is correct)
[01:20:22] <gmouer> isn't that the same as you typed a few lines back just now?
[01:20:53] <andypugh> Absolute v relative path
[01:21:38] <r00t4rd3d> fuck I just got called back to work
[01:22:31] <gmouer> oooooooooooo !!! ok,, you have a / character just before bin and I don't
[01:22:36] <gmouer> I am going blind LOL
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[01:24:13] <andypugh> I just tried it, and the / helped
[01:24:22] <gmouer> I bet you hit it Andy! I just relooked at the M code docs and their sample, it does indeed have the / ahead of bin and I left it out
[01:24:43] <andypugh> You also need the file to be in the right place, and to be executable
[01:25:17] <gmouer> I did that, its in the NC_files folder and set as executable
[01:25:33] <andypugh> bash is a program, it lives in /bin/ Not sure if you realise that?
[01:25:43] <gmouer> it does see the file because it does not throw a error, if I type the nonexistant M170 it throws a error
[01:25:58] <gmouer> no, I did not realize that
[01:26:17] <andypugh> It's also what interprets your command line entries (unless you choose to use something else, like sh or tcsh
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[01:26:51] <gmouer> but, doesn't the # on the start of that line make it a comment that is ignored anyways
[01:27:23] <r00t4rd3d> you probably dont even need #!/bin/bash in there.
[01:27:29] <andypugh> Yes, but then #! is a "magic comment" that means "run this file using this interpreter"
[01:27:40] <gmouer> ahhhhhhh
[01:28:10] <gmouer> great, I have enough trouble doing easy things, now we are getting into magic LOL
[01:28:22] <andypugh> You can use #!/bin/python for Python code, or #!/bin/octave for Matlab scripts..
[01:28:59] <gmouer> boy, I hunted for a long time the other night for such information and didn't find a hint
[01:30:17] <andypugh> http://en.wikipedia.org/wiki/Shebang_(Unix)
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[01:31:49] <tjb1> Can you unlink and relink them?
[01:32:09] <andypugh> I think it will work with an absolute path
[01:32:12] <tjb1> I dont know that much about HAL but can you delete a pin that is/was currently in use?
[01:32:21] <andypugh> With delsig, yes
[01:32:29] <gmouer> I think you are right andy, the missing / is causing all the trouble
[01:34:46] <r00t4rd3d> in your terminal type echo $0
[01:34:51] <r00t4rd3d> thats a zero
[01:35:06] <r00t4rd3d> whats the output?
[01:36:07] <andypugh> I was testing with an M101 that says: #!/bin/bash
[01:36:08] <andypugh> echo Hello
[01:36:09] <andypugh> exit 0
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[01:37:25] <gmouer> so /bin/bash is the terminal console as a command intreperter correct?
[01:37:33] <andypugh> Yes
[01:37:57] <r00t4rd3d> and is a redundant line on most machines
[01:37:58] <andypugh> So anything that works in the terminal will work in that script.
[01:38:09] <gmouer> I am learning, coming from Mach3 its a steep curve, but sooooooooo worth it
[01:38:35] <r00t4rd3d> if echo $0 tells you your using bash, no need for #!/bin/bash
[01:38:58] <andypugh> Well, this is the Linux equivalent of Mach Basic macros
[01:39:25] <gmouer> yea, but ooooo so much more power
[01:39:31] <andypugh> r00t4rd3d: It does no harm though, and might save problems if you wanted to change your default shell.
[01:39:39] <r00t4rd3d> the only time you need to define a shell is when you use something other then default
[01:39:52] <gmouer> I am constantly amazed at the power of linuxcnc and its ability to handle different hardware
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[01:40:11] <r00t4rd3d> put a EA game in the dvd drive
[01:40:20] <gmouer> and, the terminal is the default?
[01:40:43] <r00t4rd3d> no the terminal is access to the shell
[01:40:53] <r00t4rd3d> the shell being bash
[01:43:56] <gmouer> I got the gangtool lathe all retrofitted and happy with it, this is just some finishing touches
[01:44:05] <andypugh> I just ran sh inside tcsh inside bash. Just for fun :-)
[01:44:24] <r00t4rd3d> lol
[01:45:09] <andypugh> I would have done it all by ssh-ing to the linuxCNC machine and back again, but I just shut them all down to go to sleep.
[01:45:14] <gmouer> thanks so much once again, andy
[01:45:40] <andypugh> No problem, I learned something by answering the question :-)
[01:46:07] <andypugh> Goodnight chaps.
[01:46:15] <gmouer> night Andy
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[01:59:47] <tjb1> Hello r00t4rd3d
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[02:28:31] <tjb1> Liar.
[02:28:34] <tjb1> I see you r00t4rd3d
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[02:31:59] <r00t4rd3d> my reset typo didnt help me any
[02:32:37] <tjb1> And its usually like this "servos4ever left the chat room. (Quit: ChatZilla 0.9.85 [SeaMonkey 2.0.11/20101206162726])"
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[02:33:06] <r00t4rd3d> probably on garbage clients
[02:33:25] <r00t4rd3d> i dont see any join/parts/quits :D
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[02:36:32] <tjb1> Thats the problem with android...
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[03:27:25] <tjb1> 1 more program to write for java!
[03:29:27] <jdh> woohoo!
[03:29:38] <jdh> I wrote some python this weekend. It was interesting.
[03:32:28] <tjb1> There is probably a reason this is the last one out of 12...
[03:34:45] <tjb1> I heard python is easy compared to java
[03:34:50] <tjb1> How true is that?
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[03:37:08] <jdh> I thought it was
[03:37:35] <jdh> but, my python was kind of hacky... no classes, just straight code.
[03:37:47] <jdh> no self.anything
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[05:37:58] <tjb1> How does this happen? http://sphotos-b.xx.fbcdn.net/hphotos-ash3/542592_4666208209167_1518896048_n.jpg compare the R in simulator
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[06:50:12] <RyanS> do moving gantry style CNC routers (say 600mm x 600mm approx envelope or smaller) require a lot less rigidity and generally cost compared to mills... Considering its cutting hardwood, plastic and perhaps aluminium sheet metal?
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[06:54:38] <toastydeath> yes
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[06:59:26] <abetusk> kanzure, dvorak?
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[07:00:33] <kanzure> no i don't use dvorak
[07:00:34] <kanzure> abetusk: what?
[07:00:36] <kanzure> why are you in here
[07:00:46] <abetusk> um, do you not want me to be?
[07:01:10] <kanzure> i just don't understand your message
[07:01:15] <abetusk> no, you got it
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[07:01:30] <abetusk> you had some crazy words per minute, I was wondering if you were using standard key layout
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[07:01:46] <abetusk> I consider myself fast but I'm only 80 on a good day
[07:02:21] <kanzure> yes i use qwerty
[07:02:31] <RyanS> not a lot available for a half decent price in Australia. .. $4800 for a Shark CNC, they seem a bit flakey
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[07:55:01] <DJ9DJ> moin
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[08:02:10] <toastydeath> RyanS, flakey in what way
[08:02:35] <toastydeath> even cheap cnc routers tend to have halfway-decent controls, because they have to hustle
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[08:07:10] <Jymmm> SWPadnos: ping?
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[08:24:31] <Loetmichel> mornin'
[08:25:57] <toastydeath> off topic, but do any of you guys have an idea what a 500-level english class entitled "Topics in Linguistics" would usually involve
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[14:58:23] <JT-Shop> mighty quiet in here today
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[14:59:11] <cncbasher_> must be a sale on somewhere
[14:59:54] <JT-Shop> Black Thursday maybe
[15:00:25] * archivist still has a sore throat
[15:01:35] <jdh> I'm taking the rest of the Friday's off for this year.
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[15:20:53] <skunkworks> http://groups.yahoo.com/group/mach1mach2cnc/message/137676
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[15:26:04] <Loetmichel> JT-Shop_ have to work ... no time ;-)
[15:26:25] <JT-Shop> Loetmichel: me too
[15:28:15] <Loetmichel> ... and the boss is jumping around the workshop all day.. so sitting on the Com IRCing isnt the route to go for the "production manager" ;-)
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[15:35:35] <archivist> I thought the "production mangler" just got the serfs to do the work
[15:37:11] <Loetmichel> serfs?
[15:37:20] <Loetmichel> and there was a reason for the ""
[15:37:40] <Loetmichel> i am the last indian blelow all chiefs...
[15:38:04] <Loetmichel> all but one of my workers have gotten the pink slip├╝.
[15:38:07] <Loetmichel> -├╝
[15:38:15] <archivist> the title over here would imply you have underlings
[15:38:26] <Loetmichel> i have. ... one...
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[15:38:28] <Loetmichel> left
[15:38:34] -!- cncbasher has quit [Ping timeout: 240 seconds]
[15:38:55] <Loetmichel> serfs is underlings?
[15:40:24] <archivist> It was a condition of bondage or modified slavery which developed primarily during the High Middle Ages
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[15:51:49] <JT-Shop> dang I've got 4 weeks to build 9 lift and rotates
[15:53:16] <archivist> stop complaining :)
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[15:58:33] <JT-Shop> I'm not complaining :)
[15:59:49] <archivist> I just have some security cameras to fit when I stop coughing
[16:00:23] <archivist> friends farm got broken into last weekend
[16:01:21] <Jymmm> what they get?
[16:02:18] <archivist> stole some power tools
[16:02:23] <Loetmichel> no cameras. fit shotguns wiht tripwires ;)
[16:02:33] <Loetmichel> so the next break in is the last
[16:02:59] <Loetmichel> and if you are generous:m us rubber buckshot
[16:03:04] <Loetmichel> use
[16:03:21] <Jymmm> archivist: during the daytime?
[16:03:28] <archivist> night
[16:03:50] <Jymmm> archivist: do they have flood lights on at night?
[16:04:10] <archivist> no
[16:04:52] <Jymmm> archivist: I'd start there before the cameras. I've noticed that places that dont have exterior lighting have higher crime rates.
[16:05:27] <Jymmm> Kinda like cockroaches if you will. they scatter when there's light =)
[16:06:27] <archivist> the electrics up there are revolting
[16:07:45] <Jymmm> ?
[16:08:31] <sliptonic> Machine native units is inches but I want axis to start up in mm. Where should I be looking to configure?
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[16:13:39] <gmouer> is this format ok in a bin/bash file halcmd net signal1 pin1 pin2 or do I have to break it up and set up the signal first then connect up the pins?
[16:14:53] <JT-Shop> sliptonic: the ini file
[16:15:25] <pcw_home> I think 'net signalname pinx piny' is preferred
[16:16:10] <pcw_home> but I've never tried it with halcmd
[16:16:32] <gmouer> ok pete, I have a couple lines not executing in the file, no error messages thrown
[16:16:50] <sliptonic> JT-Shop: Well that was my first guess but the only thing I saw was in the Traj section for linear_units which I understood to set the machine native units.
[16:18:11] <JT-Shop> Axis GUI?
[16:18:40] <sliptonic> yes.
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[16:19:44] <gmouer> here is the file, the two delsig command are working, the net commands are not taking place, (checked in show hal config) http://pastebin.com/3kRZ3GnP
[16:19:46] <JT-Shop> I see what you mean the GUI defaults to view inches even if you select mm
[16:20:21] <gmouer> this is new to me and I am stumped why the two net commands are not working
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[16:21:37] <JT-Shop> and if you change linear units to mm Axis starts in mm
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[16:23:44] <JT-Shop> someone just told me this"just for interest sake, there is a new breed of controllers that let you run regular stepper motors at up to 4k silently or stopped and holding.... and you can put your hand on them they are barely warm. They use encoders and pid controls so in essence are servos....but they are just a 100% standard stepper with a rotary encoder and very cool controller and software."
[16:24:35] <pcw_home> gmouer: are there any errors if you type the command by hand?
[16:24:37] <pcw_home> that is type:
[16:24:38] <pcw_home> halcmd net spindle-fwd motion.spindle.reverse spindle-fwd hm2_5i25.0.7i77.0.0.output-01
[16:24:40] <pcw_home> in a terminal window
[16:25:42] <gmouer> have not tired it directly in the terminal window, only in the M168 file, but no errors show when M168 is entered in the MDI
[16:28:10] <gmouer> I reread the halcmd docs this morning and wondered if creating the signal first then connecting pins on a different halcmd line is the required way can't really tell from the halcmd docs but considering signame pinx piny is valid in a hal file, I would think it would be valid for halcmd also
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[16:29:12] <pcw_home> JT-Shop: using step motor as servos has been done for a while. They still have the same torque/speed curves that the stepmotor at a drive given voltage however. They are good for slow speeds where you dont want to use any gearing and want the standard servo advantages of low idle power and higher accuracy
[16:29:24] <gmouer> or... is it because I just deleted the signal and then on the next line try to recreate the same signal name again?? something it does not like about that?
[16:29:58] <pcw_home> Dont know
[16:30:00] <JT-Shop> pcw_home: thanks, I wondered about the 4k rpm part
[16:30:00] <pcw_home> I would try directly from the terminal
[16:31:06] <gmouer> guess I will have to experiment a bit more I can't see any apparent reason why it should not work as-is, must be something it does not like
[16:31:48] <pcw_home> 4000 RPM is possible (and they stall like a servo, that is if you overload the they will stall, but restart when released) but you will have minmal torque at 4000 RPM
[16:33:07] <pcw_home> That is a step motor can be run just like a AC servo (though 2 instead of three phase and 50 poles instead of 2/4/8)
[16:33:07] <gmouer> it would seem the big advantage would be missed steps would not go by undetected, they would get corrected
[16:34:15] <pcw_home> Yeah its a true servo, it cannot stall in the step motor sense (and only enough drive current is suppled to move to the desired position)
[16:36:21] <pcw_home> but step motors make poor servo motors efficiency wise and the high drive frequencies make the drive more complicated than say 2-8 pole a 3 phase drive
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[16:52:06] <IchGuckLive> hi all
[16:52:20] <FinboySlick> Yo.
[16:52:33] <IchGuckLive> Someone has ever seen CAD models for VDI turning tools like -> http://www.fwt-gmbh.de/de/Spannwerkzeuge/Werkzeughalter/VDI-Werkzeugaufnahmen/
[16:53:12] <roh> nope. but if you make some.. put them on thingieverse :)
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[16:53:40] <IchGuckLive> even traceparts does not have them
[16:54:07] <FinboySlick> IchGuckLive: They don't seem overly complicated... Do you have dimensions?
[16:54:45] <IchGuckLive> not all but i will do it my own
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[16:54:55] <FinboySlick> OK
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[17:39:46] <c60> Morning,
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[17:42:55] <c60> I'm doing some engraving and even though I have my feedrates up the speed at which it's going is quite slow, I'm guessing linuxcnc just can't keep up with how much gcode it's trying to process or can't spit it across the parallel port quick enough? Any suggestions accepted ;)
[17:44:27] <pcw_home> g64 pX
[17:45:03] <pcw_home> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?TrajectoryControl
[17:45:44] <IchGuckLive> c60: what is your max speed
[17:46:31] <IchGuckLive> c60: can you give me some mor info about your latency and what driver are you using
[17:46:55] <IchGuckLive> also whoudt be good to get your leadscrew pitch
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[17:50:22] <IchGuckLive> C60 ?
[17:54:20] <c60> well when I'm just jogging speed is fine, I'm going at 2000mm/min, I'm using a 5start acme screw, it's a CNCrouterparts build. It's using a PMDX controller with gecko 201x drivers for the nema 34 steppers
[17:55:56] <IchGuckLive> ok so its not the system itself DID you check your acceleration
[17:56:55] <IchGuckLive> so you reatch the max speed within 4-5mm
[17:57:30] <c60> ya the Z seemed a little low, so I upped it, my settings for z are: max velocity=35, max accel=40, stepgen_maxaccel=47.5
[17:58:00] <c60> but I'm not sure how the stepgen_maxaccell relates to the other settings so I've not messed with it much.
[17:58:48] <c60> well I'm engraving so it's always going up and down lots, if it's not moving on z speed is fine,
[17:59:27] <IchGuckLive> i know this im doing also stuff like that
[17:59:46] <IchGuckLive> do you reatch 400-500mm/min
[17:59:55] <IchGuckLive> or is it well below that
[17:59:57] <c60> so you don't think it's bottleneck of parallel port?
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[18:00:05] <IchGuckLive> NO
[18:00:24] <IchGuckLive> Did you use G65 P0.05
[18:00:28] <IchGuckLive> G64
[18:00:30] <cradek> velocity 35 accel 40 means it takes almost a full second to get up to speed and then another full second to stop again
[18:00:38] <c60> I'm not sure about 400-500mm/min,
[18:00:39] <cradek> it looks like your maxaccel setting is grossly wrong
[18:00:43] <c60> probably
[18:01:08] <c60> I couldn't find any info on cnc routerparts site about settings for the z, only the xy
[18:02:04] <c60> what's g64? says it's active under MDI
[18:02:23] <cradek> unless this is a multiple-ton machine, that accel setting is plainly wrong
[18:02:47] <cradek> and that is the main cause of your problems
[18:03:21] <pcw_home> I was suggesting g64 pxxx to speed up contouring but you accell is way too low so needs to be fixed first
[18:04:06] <cradek> set accel as high as you can without the motors stalling. for a light machine, 500 or more might be a reasonable number
[18:04:11] <pcw_home> JTs rule of thumb was 10X max velocity
[18:04:28] <pcw_home> so 100 ms to full speed
[18:04:46] <cradek> that's a fine place to start experimenting
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[18:05:33] <cradek> bbl
[18:07:23] <c60> what's the relation between max velocity and accelleration and the stepgen_maxaccell?
[18:07:57] <c60> I kept trying to up max velocity and acceleration but then I'd get a following error since my stepgen_maxaccell wasn't right
[18:08:55] <IchGuckLive> stepgen_maxaccell 25% more then maxaccell
[18:09:31] <c60> ok, so what should a 5start acme screw be set at?
[18:09:43] <c60> or what's a good range to go for
[18:09:58] <motioncontrol> Hi at all. i use a pid component for orient spindle. For have ramp accelleration use another exsternal components ?
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[18:15:11] <awallin> spindle-speed-out probably has no accel limit?
[18:16:29] <awallin> so use limit2 or limit3 ?
[18:17:02] <motioncontrol> yes but how connect limit 2 out on pid.x.command ?
[18:18:31] <c60> actually what confuses me about the numbers is I'm not sure what they represent, do I multiply the number by
[18:18:46] <c60> the scale factor to give me my mm/min?
[18:19:11] <awallin> velocities are in mm/s if you are using metric
[18:19:28] <awallin> motioncontrol: maybe spindle-speed-out -> limit2 -> pid.command
[18:19:30] <c60> does the scale factor relate to it or no?
[18:20:16] <awallin> I would think scale doesn't matter, but that depends on how it's used in the HAL file
[18:21:38] <IchGuckLive> c60 no
[18:21:53] <IchGuckLive> scale means the steps for your unit mm or inch
[18:22:19] <IchGuckLive> c60 velocity is max alowed speed in units per second
[18:22:46] <IchGuckLive> so 35mm/second =2100mm/min
[18:23:55] <c60> alright, thanks for all the info, again ;)
[18:24:01] <IchGuckLive> NP
[18:24:08] <IchGuckLive> therefor is this channel
[18:26:28] <IchGuckLive> today i did 150 pulleys with a keyway what a work
[18:28:11] <c60> ouch,
[18:28:35] <c60> hey one other question, I always get an exceeded negative soft limit right after it homes, what's this from?
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[18:28:47] <IchGuckLive> the 25 new education mills are going to show in parts
[18:29:26] <IchGuckLive> C60 did you sewt ignore limmit
[18:29:48] <jdh> or is home set to 0.0?
[18:29:56] <c60> home might be at 0.0
[18:30:04] <IchGuckLive> http://www.linuxcnc.org/docs/devel/html/config/ini_homing.html
[18:30:12] <c60> I have home at -5
[18:30:31] <IchGuckLive> is the mashine limit at -6
[18:30:35] <c60> sorry home is at 0,
[18:30:39] <c60> home offset is -5
[18:31:11] <c60> wow, I upped my z to 100 ish now that program takes no time to finish, thanks, I should have done this yesterday when I still had 75 to engrave not the 7 left now.
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[18:31:56] <IchGuckLive> c60: please read carefull http://www.linuxcnc.org/docs/devel/html/config/ini_homing.html#_home
[18:33:24] <IchGuckLive> c60 did you go for 350 or 500 max aceleration
[18:35:44] <c60> I only went up to 100, I'm still doing some production things, was going to wait till I'm done,
[18:36:10] <IchGuckLive> c60: in your case i woudt leave Homeofset of the INI and only set home to 5
[18:36:55] <IchGuckLive> HOME_OFFSET is always Zero if not in the ini
[18:37:25] <IchGuckLive> so the Homeswitch is Zero Mashine
[18:37:58] <c60> so home offset should be zero? I have it at -5,
[18:38:22] <c60> well I'm using the home as the limit too, actually I have a single halleffect one on the gantry and magnets at both ends.
[18:39:15] <IchGuckLive> if you go HOME_OFFSET -5 your MIN_LIMIT = -6
[18:40:28] <IchGuckLive> c60 HOME_IGNORE_LIMITS is set
[18:42:20] <c60> that makes sense now, and I upped to 200 accell, hells bells that's nice.
[18:45:26] <IchGuckLive> pcw_home: what is the max acelleration factor for Rotarys
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[18:47:46] <IchGuckLive> cradek: ? on rotary speed
[18:47:51] <awallin> IchGuckLive: angular_units specifies degrees or radians etc
[18:48:09] <IchGuckLive> ok lets do a example
[18:48:11] <awallin> http://www.linuxcnc.org/docs/2.5/html/config/ini_config.html
[18:48:15] <IchGuckLive> same stepper
[18:48:35] <IchGuckLive> scale 100 pitch 4mm 35mm/sec in the ini
[18:49:55] <awallin> for an angular axis (joint!) the vel would be in deg/s and acc in deg/(s*s) the actual values would depend on the gearing, since rotarys have lots of gearing usually
[18:50:36] <IchGuckLive> compare to that in rotary the 1600steps per Motor Revolution Microstepping to a 4:1 gear
[18:51:20] <IchGuckLive> scale is then 17.77778
[18:52:01] <IchGuckLive> what woudt you give the velocity and acelleration
[18:53:42] <IchGuckLive> calculating on 20k steps per second from the latency
[18:55:37] <IchGuckLive> 1100deg/sec
[18:55:55] <IchGuckLive> now comes in the factor 10 or less
[18:59:34] <IchGuckLive> http://www.youtube.com/watch?v=5fiGsPaFEbs
[19:09:45] <IchGuckLive> al gone Nap
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[19:15:02] <IchGuckLive> By
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[20:53:58] <AlJaMa> sadly, I just found out that the card for the laser is USB it's not the parallel port :/
[20:54:29] <andypugh> No D25 on the machine then?
[20:55:02] <AlJaMa> nope, I'm bummed I still want to interface it with linuxcnc but now I'm unsure how to go about it
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[20:57:34] <andypugh> I don't think you can, unless you go inside and connect directly to the stepper drives.
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[21:11:53] <tjb1> Do sensing wires on a pc psu need hooked up if you arent using that voltage?
[21:12:27] <andypugh> Probably.
[21:13:23] <tjb1> Great...
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[21:14:45] <andypugh> Try it without first, if it's a hassle.
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[21:18:04] <tjb1> Well the pinout I have says gray is POWER_OK, +5 and +3.3 is ok...what does that mean?
[21:19:58] <tjb1> Ive shorted green-black and it worked but then again all these sensing wires are hooked to their respective voltages in the mobo plug
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[21:24:21] <andypugh> No idea, my experience with trying to use PC power supplies is a 100% failure rate (but I only tried twice)
[21:24:21] <cradek> I've had 100% success by shorting green->black and then not worrying
[21:24:21] <andypugh> Some shut down without a load on the 5V
[21:24:21] <cradek> I've even done that on machines that should be always on when plugged in, to eliminate any BS from the soft power switches
[21:24:21] <tjb1> Haha...found another that says gray is given 5v to let psu know voltages are good
[21:24:21] <cradek> I miss the days of actual switches on PCs
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[21:26:48] <tjb1> Wonder what the 5v standby wire is
[21:27:07] <cradek> that's how it remembers the radio stations when the car is off
[21:27:20] <PCW> standby power thats always on (for WOL etc)
[21:27:20] <cradek> or similar...?
[21:27:26] <cradek> yeah that
[21:30:28] <tjb1> Dont need that then
[21:30:41] <andypugh> My Mill PC opens a relay on the mains when the 5V goes off so that the (normal, industrial) PSUs aren't permanently powered up. I wonder if I could use a capacitor to supply enough standby 12V to allow WoL to happen?
[21:36:31] <tjb1> Would it be bad to permanently short green to ground?
[21:49:38] <FinboySlick> andypugh: You'd power just the wol part?
[21:50:29] <andypugh> I don't think I can. I would need to have enough power to keep the PicoPSU 12V input happy at standby power levels.
[21:51:00] <FinboySlick> andypugh: Is the relay-interrupted mains also powering the PicoPSU?
[21:51:07] <andypugh> Yes
[21:51:42] <andypugh> I guess it will be a non-issue when the machine is working, as I will be there to operate it.
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[22:01:19] <DJ9DJ> gn8
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[22:41:42] <tjb1> Voltage out of psu means it should be working?
[22:42:57] <tjb1> I dont really have anything ready to load it
[22:45:04] <ssi> cradek: you ever been into the guts of the pneumatics on your hardinge turret?
[22:49:46] <andypugh> I know a man who has..
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[23:00:04] <andypugh> tjb1: The right voltage?
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[23:07:13] <JT-Shop> ssi: what do you need to know about the turret?
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[23:09:42] <rob_h> hi jt
[23:09:56] <JT-Shop> hi rob
[23:10:02] <JT-Shop> how's going over there?
[23:10:48] <rob_h> Freezing
[23:11:10] <rob_h> and thinking how i can fit this magazine barfeed in the place :)
[23:11:14] <JT-Shop> not quite that bad over here at the moment
[23:11:27] <JT-Shop> BFH
[23:12:02] <rob_h> looks like i need to write an interface comp for it too so it can load the bars
[23:12:38] <JT-Shop> does it have a rack like magazine?
[23:12:45] <JT-Shop> I forgot what it looked like
[23:13:27] <rob_h> yea takes quite afew bars too, has a loading rod inside push's bar in, then changer to a small pusher to push the bar in use
[23:13:48] <rob_h> then at end of bar (has a magic eye by looks) push bar end out collet and loads the next one
[23:13:52] <JT-Shop> cool
[23:14:02] <rob_h> http://innovative-rc.co.uk/EMC/barfeed/img4.JPG
[23:14:11] <rob_h> rack on left,
[23:15:37] <JT-Shop> so in that photo it feeds the bars from the loader to the right?
[23:15:45] <rob_h> yep
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[23:16:43] <rob_h> got a small DC motor inside with encoder to push the bars with, programer on front u tell it length and stuff
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[23:16:55] <rob_h> iv not read manual fully yet
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[23:19:21] <rob_h> so u not got any new toys latly then
[23:19:52] <JT-Shop> just the Brown & Sharpe 6x12 surface grinder
[23:20:04] <JT-Shop> need a second story now...
[23:20:47] <rob_h> haha u and me both
[23:21:38] <rob_h> here i am bidding on a parts rumbler lol no idea where to pu tit
[23:22:09] <JT-Shop> the last guy that had the table off put the rollers in the V way wrong so the table had a 15 thou tilt LOL
[23:22:28] <JT-Shop> no wonder it would not grind anything flat
[23:22:31] <rob_h> o thats kinda not h andy on a surface grinder
[23:22:57] <rob_h> you got a mag chuck for it?
[23:22:57] <andypugh> It's great when it means JT gerts it cheap :-)
[23:23:08] <JT-Shop> all fixed now and within 0.0005" front to back
[23:23:19] <JT-Shop> yea a 6x12 chuck
[23:23:33] <rob_h> yea abit like our EDM sinker, sold as broken... got it for nowt, got i tback here 5mins later fixed and working :)
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[23:23:41] <rob_h> all it was was a wire on a limit switch
[23:23:49] <JT-Shop> gotta love that
[23:26:53] <rob_h> did u ever get on with HSM cam
[23:27:31] <JT-Shop> no, 2013 wiped it out
[23:28:24] <rob_h> aah not both with 13 yet
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[23:28:54] <rob_h> u get the new onecnc i take it
[23:28:58] <rob_h> xr5 is it
[23:29:38] <JT-Shop> no, it didn't seem like any of my complaints had been addresed so I let it slide
[23:29:57] <JT-Shop> I'm still using xr4
[23:30:42] <rob_h> was goiong to see if u rated it or not new vids seem good
[23:31:08] <JT-Shop> xr5 vids
[23:31:12] <rob_h> ye
[23:31:20] <JT-Shop> didn't see them
[23:32:05] <rob_h> on there website site
[23:32:48] * JT-Shop wonders what ssi wanted?
[23:33:03] <rob_h> maybe he broke it
[23:33:12] <rob_h> or has my problem of lazy valves
[23:35:22] <rob_h> funny how many HNCs are around now tho
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[23:35:54] <JT-Shop> they are coming out of the woodwork like roaches
[23:36:23] <JT-Shop> ssi: http://linuxcnc.org/index.php/english/forum/30-cnc-machines/2697-rebuilding-a-hardinge-chnc-turret
[23:36:37] <rob_h> dont see many CHNCs tho not here
[23:38:03] <JT-Shop> I've only seen one around here
[23:38:47] <rob_h> i just swear at mine when i put 3/4 drills on slide and run out of travel on the square turret
[23:39:45] <JT-Shop> ain't a whole lot of room for stuff
[23:40:51] <rob_h> non of us can afford the machine we realy want
[23:41:45] <JT-Shop> I know that feeling
[23:42:10] <JT-Shop> I finally got some work, it had been a little dry of late
[23:43:07] <rob_h> yea its abit like that here.. but at moment we got heaps of work. well into summer infact
[23:43:36] <rob_h> and they want to keep giving us more :s
[23:44:21] <rob_h> ri time to head off here, catch soon
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[23:47:59] <JT-Shop> ok see you soon
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[23:48:49] <Tom_itx> maybe it'll pick up now that that whole november event is past us
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[23:49:40] <Tom_itx> it was a real pisser when hostess closed
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[23:50:48] <Jymmm> Tom_itx: You didn't buy enough twinkies!
[23:51:06] <Tom_itx> i liked the pies better
[23:51:10] <Jymmm> Tom_itx: And Ho Ho's you ho!
[23:51:33] <Tom_itx> now you go in QT and the shelf is vacant
[23:52:47] <Tom_itx> damn union workers fault
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