#linuxcnc | Logs for 2013-04-08

[02:32:18] <r00t4rd3d> good middle of the morning
[02:32:57] <r00t4rd3d> 3:20am and the coffee buzz is still rocking
[02:33:03] <r00t4rd3d> i just got some cutting :)
[02:33:10] <r00t4rd3d> some/done
[02:39:46] <r00t4rd3d> drill press lathe chuck: http://imgur.com/a/dbDkZ
[02:39:53] <WalterN> r00t4rd3d: did you see that I ended up buying a laser?
[02:45:43] <r00t4rd3d> no
[02:46:08] <r00t4rd3d> I mostly pay attention to myself
[02:47:30] <r00t4rd3d> that was meant as a joke, not a dick
[02:48:34] <r00t4rd3d> i could be in a irc channel by myself and have a great time
[02:48:58] <WalterN> lol yeah
[02:49:08] <WalterN> I know what you mean... lurking is the best
[02:49:48] <Loetmichel> mornin'
[02:50:08] <WalterN> r00t4rd3d: got a 30watt diode laser... http://tiwake.com/Caputre.JPG
[02:55:22] <WalterN> I need a power supply for it though
[02:55:37] <WalterN> 2 volt 50amp
[02:56:23] <WalterN> donno what to do about that
[03:00:08] <r00t4rd3d> The requested URL /Caputre.JPG was not found on this server.
[03:00:18] <r00t4rd3d> nvm
[03:00:37] <WalterN> derp
[03:00:41] <WalterN> Capture
[03:00:55] <WalterN> r00t4rd3d: lol... sorry
[05:37:45] <DJ9DJ> hi
[07:19:23] <PetefromTn> Mornin fellas...
[07:34:48] <jthornton> morning
[07:45:20] <PetefromTn> jthornton: morning Jt
[07:46:11] <jthornton> making any chips yet?
[07:51:27] <PetefromTn> LOL yeah I wish... Still gotta work on modifying the Y axis motor cable so it fits inside the column. Damn huge Mil-spec connectors LOL
[07:52:11] <PetefromTn> They look like a freakin' horn sticking out the side of the motor. Thankfully it is only the Y that has the issue.
[07:52:36] <jthornton> yea they can be big, do you have a photo of it?
[07:55:06] <PetefromTn> jthornton: think so but how do I post it..did'nt think you could post pics here LOL
[07:55:42] <jthornton> yes, just use imagebin.ca or similar
[07:56:14] <jthornton> opps imagebin.org
[07:57:47] <archivist> or ones own blog/site so you can always point at stuph
[07:59:10] <PetefromTn> Oh okay... There is a picture of it in my thread here on LinuxCNC forum....http://www.linuxcnc.org/index.php/english/forum/30-cnc-machines/25790-petes-cincinatti-arrow-500-retrofit?start=10
[08:00:00] <PetefromTn> Does not show the connector apparently I thought I had a picture of that but it is like three to four inches longer than that mount which ALREADY sticks out quite a bit from the motor body. Suckage,
[09:05:18] <r00t4rd3d> http://www.csparks.com/watchmaking/SwissLathe.jpg
[09:05:59] <Valen> tiss pretty
[09:06:35] <PetefromTn> Sweet.....you make that?
[09:08:10] <r00t4rd3d> no
[09:08:16] <r00t4rd3d> want it
[09:10:49] <archivist> ew set up for a left handed user
[09:11:12] * archivist hides his smaller lathes
[09:12:41] <archivist> hand turning with a graver is pretty easy
[09:22:40] <PetefromTn> so that is a wood lathe no? whaddya mean want it? ya giving it away?
[09:25:09] <archivist> not a wood lathe, it is for turning small watch parts
[09:26:18] <archivist> balance staffs etc
[09:30:03] <archivist> http://www.csparks.com/watchmaking/Lathes.html
[09:31:01] <PetefromTn> SWEET!!
[09:31:33] <archivist> and now we see where he stole that image from!
[09:33:42] <chopper79> Hello, I am needing some help with Gantrykins if anyone is familiar with how it functions and how to change some function with it.
[09:34:32] <archivist> ask the real question
[09:37:09] <chopper79> I need to find a way to keep joint mode hidden. The only thing I or anyone should see for that matter is world mode? This would be the first with Gantrykins. Is there a way to do this?
[09:41:53] <cradek> I've heard that gentrivkins in joints_axes3 branch will do this, but I haven't tried it and I don't know anything about it
[09:41:57] * JT-Shop wonders if anyone has been happy using gantrykins
[09:42:41] <cradek> I think gantrykins is simply a mistake
[09:43:31] <PetefromTn> that does not sound too promising...
[09:45:53] <R2E4_awy> I tried Gantrykins back when I built my cnc router and I never got it to work right, so I switched to mach3
[09:46:15] <chopper79> hmm... Well I dont really want to use gantrykins as I would rather use trivkins. Trivkins will not allow me to autosquare using a 5I25 board. I can do it with parallel port, just not MESA board.
[09:47:19] <chopper79> From the research I have done.... Nobody likes Gantrykins due to al the bugs. Great idea for sure, just not usable. I was thinking of making some changes to tit and see if I can get something else figured out to make it work like I need
[09:47:27] <cradek> ok, now I know/remember the full question. with software stepgen, you did it by gating step pulses, right?
[09:47:40] <chopper79> yes
[09:47:44] <gene77> Hi Guys, got a show stopper here, 2.6.0-pre, uptodate on all machines
[09:47:55] <chopper79> Still fighting the squaring issue
[09:47:56] <cradek> why not do that same thing in hardware?
[09:48:29] <gene77> 275 lines of code that runs fine in sim mode, won't load on real mode, ideas?
[09:48:33] <cradek> I'm hoping after fest we'll have a better setup, but until then you'll have to be creative
[09:49:42] <gene77> error is in a g2 line, whats dif between sim and real?
[09:49:43] <chopper79> I though abotu hardware, but PCW thinks it would be better doing this in the motion section instead of gates or harware if Im not mistaken.
[09:50:01] <cradek> gene77: so what's the error?
[09:50:33] <cradek> chopper79: sure, he's right, but that doesn't currently exist
[09:50:37] <gene77> radius to end of arc differs, a lot
[09:51:17] <cradek> gene77: pastebin the gcode.
[09:51:41] <gene77> I even copied the machine status from the house machine to the top of the file thinking something there was amiss, no deal
[09:51:54] <gene77> ok, brb
[09:53:06] <cradek> chopper79: like I've talked about before on the channel, I think the right way to do it would be to have master/slave joints in the motion controller
[09:53:13] <cradek> it is nontrivial to do that, to say the least
[09:53:56] <chopper79> exactly, so I am still at the point of figuring out a way to do it in software. Maybe if I can get a home trigger to disable to stepgen until both home swithces are contacted then enable stepgen for only the tandem joints. This is the only thing I can think of since there is no sight of the stepgen using the 5i25. If I had sight over them then I can use gates to do this I guess
[09:54:38] <R2E4_awy> +cradek: I got my machine powered up finally, the BP R2E4
[09:54:41] <cradek> if your stepgens are in position mode, enabling and disabling them probably isn't going to work, because they will want to "catch up"
[09:54:50] <cradek> R2E4_awy: cool
[09:54:51] <chopper79> true
[09:55:09] <R2E4_awy> everything works on it. no errors at all.
[09:55:20] <cradek> it's a christmas miracle
[09:55:34] <R2E4_awy> yeah, except its not christmas.
[09:55:39] <cradek> so are you going to retrofit it?
[09:55:53] <R2E4_awy> I may just leave it like that and drip feed, and use my mesa cards for my next project.
[09:56:12] <cradek> the easiest machine to retrofit is a working one --- but the machine least needing a retrofit is the working one
[09:56:28] <cradek> I am not sure you can drip feed it...? I never got that to work on mine.
[09:56:57] <R2E4_awy> If I cannot drip feed it, I will retrofit it. I will be working on that the next few days.
[09:57:01] <cradek> the memory is limited but unless you're doing crazy contouring it's enough for a lot
[09:57:22] <cradek> do you have a tape reader on it, or just the serial port?
[09:57:39] <R2E4_awy> Getting the 460 3 phase working with 220 single phase was really easy. I was dreading it but it work like a charm.
[09:57:48] <R2E4_awy> 12k onboard
[09:57:59] <R2E4_awy> no tape reader, just serial port
[09:58:11] <cradek> yeah "100 feet of ram" haha
[09:58:12] <gene77> something busted in FF or pastebin.org, claims I am sending an empty paste, so what site works?
[09:58:32] <R2E4_awy> haha....
[09:59:15] <cradek> gene77: there's also a pastebin.ca
[10:00:23] <cradek> R2E4_awy: http://timeguy.com/cradek-files/emc/mill
[10:00:42] <cradek> R2E4_awy: I hooked the serial console port to my pc, and used this little program to push gcode to it
[10:01:05] <cradek> it puts the console in input mode, just like you're typing the gcode into the mill's editor, and then "types" it in
[10:02:25] <R2E4_awy> I will try that.
[10:02:26] <R2E4_awy> thanks
[10:02:50] <PetefromTn> that sounds pretty cool... kind of an MDI drip feed LOL
[10:03:03] <gene77> cradek http://pastebin.ca/2352883 one day expirey
[10:07:21] <pcw_home> chopper79: it is possible to gate the output pulses with software but its about as elegant as a pig on stilts
[10:07:48] <JT-Shop> LOL at the image of a pig on stilts
[10:08:06] <chopper79> wouls be funny to see a pig on stilts
[10:08:47] <chopper79> Then how do we go about making this happen PCW? Hardware, software?
[10:09:07] <pcw_home> In HAL
[10:12:10] <PetefromTn> Hal makes me chuckle everytime I hear it....shades of 2001 LOL
[10:12:35] <chopper79> What if we joined the outputs to drive both joint 2 and 4 so they function from 1 stepgen. Then we used .hal to route the home switches so it would....... nevermind
[10:12:39] <chopper79> failed thought
[10:13:30] <pcw_home> Basically you use the raw write routine to set the AltSource register for the I/O pins so the step pin you want to gate
[10:13:31] <pcw_home> gets driven from a output bit instead of the stepgen
[10:15:49] <chopper79> Not sure if basic should be involved with basially. I would be lost on this.
[10:16:31] <pcw_home> The other option I think I mentioned was to home to the AND of the home switches and capture the offset in HAL for application after homing is completed
[10:17:08] <cradek> pcw_home: your stilt-pig needs lipstick...
[10:19:00] <pcw_home> All these schemes are a little Rube-Goldberg...
[10:22:02] <PetefromTn> Yeah Rube Goldberg on stilts...
[10:22:11] <JT-Shop> lol
[10:23:36] <chopper79> I agree
[10:24:08] <chopper79> So still doing this in motion section is the best way as you mentioned before?
[10:25:35] <pcw_home> another just slightly less silly way is to set the stepgen in table mode (so at least you dont need to worry about messing up other altsrc bits)
[10:26:51] <pcw_home> Yes better would be for motion to know how to home linked axis
[10:32:21] <pcw_home> so disabling a stepgen output is like:
[10:32:23] <pcw_home> setp write_address 0x2200 ; stepgen 0
[10:32:24] <pcw_home> setp write_data 0x00000003 ; stepgen mode reg set to table mode
[10:32:26] <pcw_home> setp write_strobe true ; doit
[10:33:55] <chopper79> So this way the stilted pig is where a dress and lipstick
[10:35:49] <PetefromTn> You guys crack me up....
[10:36:17] <pcw_home> It will get worse...
[10:36:59] <PetefromTn> promise?
[10:37:46] <gene77> yup
[10:38:49] <cradek> ... G91.1 G97 G99 ( cancel mill dia comp, set absolute for I-J-K vars)
[10:38:56] <cradek> I notice that your code and comments don't match
[10:39:22] <cradek> so what line is the error on?
[10:39:34] <gene77> 159
[10:39:39] <cradek> ugh, gcode like this is write-only
[10:40:07] <gene77> tell me about it, I owe you for wading around in that mess.
[10:40:51] <gene77> There are probably vars that never got used too. Or use & never again referenced
[10:41:25] <chopper79> Well I will see what I can do abotu getting that pig to wear a dress and lipstick. I will report later on what I find or figure out.
[10:41:40] <cradek> sorry, I'm not able to decipher this. since you're using g41 I suspect your tool tables are different or something like that.
[10:42:14] <chopper79> Real quick could there not me just a comp that is written to handle this?
[10:42:20] <chopper79> be just
[10:42:23] <gene77> tool 1 is a 1/8" end mill. set at ,125 diameter
[10:43:36] <gene77> I would have used a smaller one, but needed the stiffness since its digging .350" deep at the end.
[10:43:59] <JT-Shop> chopper79: search the forum I seem to remember something like that...
[10:44:29] <cradek> I think it would be possible to write a comp that slaves a joint. it would need intimate knowledge about motion internals (homing states) so I think that's probably not the right way to handle it. wrong layer.
[10:45:14] <JT-Shop> could it just lie about the postion like the thc comp does?
[10:45:18] <cradek> switch-only homing would be a subset of that work and might be a bit more easily done in a comp
[10:45:28] <cradek> yeah seems like
[10:46:25] <cradek> you'd give the comp both home switch signals, and it would also monitor the homing phase (available as a motion output) and it would handle the offsets and generate the virtual home switch signal back to motion as appropriate
[10:47:12] <cradek> but if you want to handle all the different kinds of homing you'll get deep underwater fast
[10:47:35] <chopper79> true, that would get deep fast
[10:49:27] <gene77> cradek, going back to the house & clean up some of the write only vars, back in a couple hours. Thanks
[11:22:32] <PetefromTn> Well I got the little tubes machined on my lathe here so I can solder the wires directly to the pins on my new Y axis motor since the Mil-spec barrel connector cannot fit inside the damn column. They came out okay so now I just need to figure out how to solder them in place without overheating the connector body.
[11:24:04] <Connor> PetefromTn: I use forceps as a heat sink.
[11:24:47] <PetefromTn> I'll try but getting them down into that small connector at that angle might be a BEOTCH!! Oh and Good morning sir...
[11:25:28] <JT-Shop> got a photo of it?
[11:25:30] <Connor> PetefromTn: It's Noon. :) But thanks. Good After noon. :)
[11:26:15] <PetefromTn> Is it...been out in the shop all morning don't keep a clock out there or I'll just stare at it LOL...
[11:26:26] <r00t4rd3d> Redneck: http://imgur.com/a/65LAR
[11:27:13] <r00t4rd3d> i need some lathe tools
[11:27:25] <r00t4rd3d> file and sand paper dont really cut it
[11:29:24] <PetefromTn> what is that?
[11:29:41] <r00t4rd3d> drill press lathe chuck
[11:30:41] <PetefromTn> aah...
[11:31:02] <r00t4rd3d> ill sell you one for $19.95
[11:31:39] <PetefromTn> LOL thanks I'm good...
[11:32:02] <r00t4rd3d> but then you could make your own custom crack pipe
[11:32:48] <PetefromTn> Hell if I want a crack pipe I'll just wait till my Cincinatti Arrow 500 retrofit is complete and build the MOTHER of all crack pipes and smoke it...maybe.
[11:33:08] <r00t4rd3d> lol
[11:34:02] <PetefromTn> ;)
[11:51:33] <PetefromTn> shoulda made my login name......CNCjedi!!!
[11:53:13] <Connor> No Comment. :)
[11:53:21] <jdh> I think that is taken by the CNC fusion guy
[11:54:55] <PetefromTn> LOLreally what he doesn't know won't hurt him right...
[11:55:33] <PetefromTn> Connor: @no comment....HEY MAN!! I heard that...
[11:57:58] <Connor> PetefromTn: :)
[11:59:13] <PetefromTn> I thought you wuz my friend....sigh
[12:06:28] <PetefromTn> Okay what about CNCskywalker....?
[12:08:01] <jdh> where in TN?
[12:08:43] <PetefromTn> Maryville....Unfortunately.. Wish it was Palm Beach or somethin'
[12:09:39] <jdh> you mean Murville?
[12:10:32] <PetefromTn> yes exactly....you too? I'm sorry ifso.
[12:11:31] <jdh> Nope, used to do some work at Alcoa though.
[12:11:37] <Connor> I love TN and Knoxville.. everything but the Allergies.. Knoxville is ranked #2 in the nation this year..
[12:12:03] <jdh> I like the ocean
[12:12:31] <PetefromTn> Connor: Keep telling yourself that man LOL
[12:13:05] <Connor> ranked #2 in Allergies...
[12:13:11] <IchGuckLive> hi all B)
[12:13:33] <jdh> I'm hoping I stayed home from work today due to allergies, feels more flu-like though
[12:14:39] <PetefromTn> Well that sucks... I'm trying to solder these damn leads and it is NOT COOPERATING!! Maybe time for a sammich.
[12:14:59] <Connor> http://allergycapitals.com/
[12:15:20] <jdh> or some flux?
[12:16:17] <ProxDem> rosin core soldering wire or some flux like jdh suggested
[12:17:44] <PetefromTn> yep got that... Thinking about ripping off this damn standoff and getting right to the leads inside the damn motor. then make some sorta blockoff plate or sumthin'
[12:20:05] <Connor> Pull block off.. drill hole in back of it and get some of those rubber grommets from Lowes, in the hardware area in the drawers. (Home depot doesn't have them)
[12:21:12] <Connor> and do like your saying with a cover plate. that way, you have access to the wires to solder them.. Not as nice as a connector.. but.. hey, do whatcha gotta do.
[12:21:43] <Connor> gotta run and get some lunch. back in a while
[12:22:08] <PetefromTn> Yeah I am gonna look at it. Right now using a propane torch with tiny tip to heat the pins while I insert wires. Starting to work somewhat. Trying to NOT get it too damn hot. Peace
[12:22:46] <IchGuckLive> someone has Rhino running ?
[12:23:53] <FinboySlick> I haven't used rhino in ages.
[12:24:08] <FinboySlick> I remember it being pretty darn cool though.
[12:24:52] <IchGuckLive> i got a part to manufacture and i need to transfer it to step
[12:24:56] <chopper79> Debug question......... error when starting /linuxcnc/or2.ko : -1 File exists. What does this mean?
[12:26:17] <pcw_home> It usually means you have another instance of linuxCNC running
[12:26:26] <IchGuckLive> chopper79: your RT is broken restart system
[12:27:33] <chopper79> I figured it was something along those lines, but needed to make sure
[12:30:54] <chopper79> ok.... After restarting linuxcnc, the same error occurs. restart computer, same error occurs. This only happens when adding or2. loadrt02 and a count number is in the .hal. addf's are all accounted for.
[12:30:59] <chopper79> any other suggestions
[12:33:23] <PetefromTn> Okay I think I have got it done here. Gonna set it in some waterproof sealant like RTV or something and do a test of the motor.
[12:35:37] <jdh> some RTV's attack solder joints when curing
[12:56:21] <chopper79> Fixed it]
[12:57:34] <chopper79> had another loadrt or2 in another file.
[13:03:21] <FinboySlick> L84Supper: If I figure out a way to use the DSP slices, I think we're in business.
[13:11:33] <WalterN> L84Supper: so I got that laser last night, along with some (expensive) safety glasses... now I'm trying to figure out the power supply for it...
[13:12:12] <WalterN> this is something I have no idea what to do about... the diode laser needs ~2 volt at up to 50 amps
[13:13:14] <WalterN> minimum of 10 amps
[13:13:27] <pcw_home> needs to be a current source
[13:14:22] <WalterN> ..?
[13:14:46] <WalterN> where the current is controlled, and not the voltage?
[14:15:38] <pcw_home> not sure what you mean (if you disable the stepgens you have basically a parallel port again)
[14:18:17] <chopper79> well, this is really starting to burn my rear. No access is killing me right now. I just need a way to get my signal to a pin. Really did not think it would be this hard to send take control of the pins on these cards.
[14:18:43] <chopper79> Is there a way in hal to have use and availability to the stepgen pins like a parallel port?
[14:18:54] <chopper79> but keep the benifits of the MESA cards?
[14:21:30] <mr_new> pcw_home i would use a daughter card if there is one which works for me
[14:23:54] <WalterN> http://www.luminapower.com/ldpc
[14:24:01] <WalterN> derp
[14:24:09] <WalterN> just sent an email to them
[14:24:14] <WalterN> for a quote
[14:28:20] <mr_new> need 24v 8a
[14:28:40] <WalterN> it will take 12v too
[14:33:59] <pcw_home> Chopper its possible to add a stepgen gate output, its just a really mickey mouse way to do things
[14:37:46] <pcw_home> I think measuring the offset when you home and applying it after homing is a better solution
[14:37:47] <pcw_home> (well best would be for motion to be capable of homing linked axis)
[14:37:49] <pcw_home> JA3 should also work
[14:42:39] <pcw_home> gating the output violates step pulse width and acceleration parameters
[15:07:26] <sparr> I'm working on a cnc hot wire foam cutter. It has 4 axes (two heads, both with X and Y). I want to drive those axes independently and handle separate endstops for them, but have the option of sending 2D instead of 4D gcode in some cases.
[15:07:37] <sparr> Are there any good open source firmwares that can handle stuff like that?
[15:08:35] <cpresser> sparr: linuxcnc. just have two different configs for each mode
[15:09:38] <chopper79> PCW - I will give the JA3 a try and see what happens. As of now I am at a loss on getting this to work. I know that its not the hardware or anything like that, wish there was a way to handle gantry systems correctly in Linuxcnc. I can get everything to work 98% and then these darn gantry squaring issue and its back to the drawing board yet again.
[15:15:47] <chopper79> any help on how to get and use the JA3 branch for Linuxncnc. All the google searches I have done come up with talking about it but thating that will aid in getting installed. Any help on this would be great.
[15:15:57] <sparr> cpresser: in the mode where they are driven separately, how do I say "stop moving both X axes when one of them reaches its limit switch"?
[15:16:38] <cpresser> in this config: wire them to an 'or'-element
[15:16:55] <cpresser> this can be done in hal very easily
[16:07:11] <DJ9DJ> gn8
[16:39:22] <L84Supper> WalterN: when do you get to start to burning things with the new toy?
[18:02:27] <WalterN> L84Supper: donno... I kinda need a power supply first
[18:07:26] <chopper79> PCW - What does this do? setp hm2_5i25.0.stepgen.02.control-type 1
[18:08:07] <PCW> tells me that you should read the hoastmot2 manual page :-)
[18:08:55] <PCW> man hostmot2 (see stepgen section)
[18:16:03] <chopper79> Yup reads the same thing it did last time I looked. Guess I will figure that one out later
[18:20:02] <chopper79> Well PCW I am going to have to admit defeat on using the MESA boards for this setup and go back to parallel port. Thats really is too bad as I would use baout 600 of these 5i25 boards and about 200 of the THCAD a year to start with. I will play around with them again in my spare time, as of right now this is taking up more time then needs to be taken.
[18:20:54] <chopper79> Thanks for your help on this and I will again attempt again later, just right now I can work my way around a parallel port
[18:21:19] <andypugh> What's the error message?
[18:22:06] <andypugh> If it works with a parport it ought to work better with a 5i25.
[18:22:26] <chopper79> squaring seq. and gantrykins is no use.
[18:22:39] <cradek> he's gating step pulses to square a trivkins-gantry
[18:22:55] <cradek> you can't do it so easily if the step pulses aren't available at the hal level
[18:22:56] <andypugh> Ah.
[18:23:13] <chopper79> If I can not square the machine during home like I do now with a parallel port then my hands are tied
[18:23:48] <andypugh> Gating step pulses seems wrong anyway, what does it do to decel ramps?
[18:23:49] <chopper79> Until I can find more time for a work around or Linuxcnc handles gantrys with tandem motors better.
[18:25:47] <PCW> JA3 should work, Michael Geszkiewicz has it on production gantry machines
[18:26:15] <cradek> yes sounds like joints_axes3 with gentrivkins works, although I haven't tried it
[18:26:18] <andypugh> JA3 + Gentrivkins did sound promising.
[18:26:38] <PCW> Yes other than hal name changes
[18:27:45] <r00t4rd3d> http://www.cnczone.com/forums/diy_cnc_router_table_machines/109390-my_newest_desktop_machine-146.html#post1257450
[18:27:47] <chopper79> I can not find anything to point me in the direction of JA3. Just talk on here and talk on the forums but nothing documnetion wise to aid in the use
[18:27:49] <r00t4rd3d> damn he is making mills now
[18:28:53] <cradek> chopper79: joints_axes3 is a branch in git. you can use any documentation that shows you how to check out and build a certain branch. you can probably find instructions for building from v2.5_branch, for instance, but you'd substitute joints_axes3 instead of v2.5_branch
[18:29:22] <chopper79> That is what I was trying to find out for the past 4 days
[18:29:43] <chopper79> could not get a clean answer from any searches
[18:29:46] <PCW> And Michael just merged in master so its up-to-date
[18:30:09] <chopper79> Well I have master on the PC so I will launch it and give it a try
[18:30:14] <cradek> sorry, sometimes it's hard to give the right answer
[18:30:30] <andypugh> chopper79: Where did you get master from?
[18:30:42] <chopper79> You walked me through the install Andy
[18:30:51] <chopper79> 2.6 pre is still it right
[18:31:43] <andypugh> If it is from the buildbot, then that isn't much help. Did you compile from source? (I can't remember, I am absolutely hopeless with names)
[18:31:56] <chopper79> lol... yes source
[18:34:26] <andypugh> OK, if you go into your linuxcnc directory and " git checkout joints_axes3" then "make" again, then you will have Ja3.
[18:34:46] <andypugh> (And all your configs will need a bit of tweaking)
[18:36:15] <PCW> Too bad Michael is not around, He's the JA3/Gantry expert
[18:39:25] <findux> andypugh, hi . Do you have a little bit of time?
[18:39:36] <andypugh> A very little bit.
[18:41:16] <findux> I tried and EMC2 errors windows give me some errors like this [22241.076141] genhexkins: Unknown symbol pmCartCartSub [22241.076281] genhexkins: Unknown symbol pmCartMag [22241.076527] genhexkins: Unknown symbol pmCartCartAdd [22241.076664] genhexkins: Unknown symbol pmMatCartMult [22241.076802] genhexkins: Unknown symbol pmCartUnit [22241.077070] genhexkins: Unknown symbol pmCartCartCross [22241.077290] genhexkins: Unknown symbol pmR
[18:41:51] <andypugh> Is this with "comp" or "make"?
[18:42:26] <findux> with make
[18:43:25] <andypugh> Can you pastebin your genhexkins.h file?
[18:45:27] <findux> but also not chanced genhexkins.h file I have tried
[18:47:43] <findux> I decided to try linuxcnc dev version src. how can i get it?
[18:49:02] <andypugh> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Installing_LinuxCNC#Installing_to_Ubuntu_10_04_or_8_04_from_source
[18:49:19] <andypugh> (section 2.2 specifically)
[18:57:05] <findux> My machine control pc is offline. I want to download on windows pc . I forgot how it's done :)
[18:58:34] <andypugh> It's probably somewhere on that page..
[18:59:15] <findux> ok thanks
[19:13:25] <Valen> sup peeps
[19:18:18] <andypugh> Night all
[19:38:04] <LeelooMinai> I need a sanitu check for my CNC frame construction:)
[19:38:10] <LeelooMinai> sanity*
[19:41:09] <chopper79> Andypugh, pcw, cradek - I will be off for about an hour or little longer. I need a break, something about 9hrs of fighting this per day for the past week has done me in. Going to buy some seeds for our garden and eat dinner. If you guys are on still I will connect again and see what happens.
[19:41:35] <LeelooMinai> I was going to use solid aluminum beams, but that would end up to be too expensive. Plan B is to use hollow tubes and matched solid blocks at the ends to "plug" them. I would fill the tubes with sand for weight and vibration dumpening. I planned to attach the blocks to the tubes by some cap screws on the edge and maybe put JB Weld there to make sure it's not moving... The idea is that I have time to do all of this, but I cannot
[19:41:35] <LeelooMinai> really afford making a 60kg aluminum frame with cost being $5 per pund... Extrusions are too expensive for me too. You think my plan is sane?
[19:56:29] <Valen> extrusion is cheap
[19:56:34] <Valen> just don't get 80/20 stuff
[19:56:42] <Valen> also why not use steel if you want it heavy?
[19:57:04] <Valen> to glue use epoxy, jbweld is just expensivly packaged epoxy
[19:57:49] <LeelooMinai> 80/20 is not too cheap for me. I am in Canada and cannot get it from ebay since the shipping is expensive.
[19:58:05] <Valen> I said the 80/20 is expensive
[19:58:07] <LeelooMinai> Steel - I cannot deal with steel at home - I can only manage aluminium I htink
[19:58:12] <Valen> why not?
[19:58:22] <LeelooMinai> Well, ok, by 8020 I mean any extrusions really.
[19:58:39] <Valen> i'm pretty sure there will be aluminium stores in canada
[19:59:15] <LeelooMinai> I looked around - most are only interested in big buys. There is metalmarkets, but they don't have extrusions.
[19:59:32] <Valen> did you pick up the phone and call them?
[19:59:56] <LeelooMinai> Also, extrusions need a lot of specialized fasteners that are not that cheap fromw hat I have seen.
[20:00:02] <Valen> why?
[20:00:08] <Valen> you can just get RHS
[20:00:13] <Valen> your "hollow tube"
[20:00:16] <LeelooMinai> I can get simple tubes from metalmarkets though -
[20:00:17] <Valen> that is an extrusion
[20:00:46] <LeelooMinai> Yes, that's what I described above in my "plan" - using hollow tubes and solid blocks at the end inserted into them.
[20:01:21] <Valen> a "hollow tube" is generally an extrusion (in aluminium)
[20:01:44] <LeelooMinai> I am mostly wondering about that "block" part - if joining it to the tube with JB Weld + maybe some cap screws will give me enough strength/stiffness for the frame
[20:01:47] <Valen> take a look at epoxy granite
[20:02:12] <Valen> if you are gluing the strength comes from the surface area
[20:02:18] <Valen> jbweld isn't a great glue
[20:02:28] <LeelooMinai> Well, in this case it would be a substantial area
[20:02:47] <Valen> I'd be looking at doing it in steel and getting a cheapish welder
[20:02:52] <LeelooMinai> Sy, 2.5x2.5 inch tube with 0.25 inch walls and 2x2x2 solid cube inserted at the end
[20:03:08] <Valen> TIG, not mig, and *NOT* gassless mig
[20:03:28] <LeelooMinai> Well, as I said - steel is too hard-cire for me:)
[20:03:32] <LeelooMinai> core*
[20:03:45] <LeelooMinai> also, it's not much cheaper
[20:03:52] <LeelooMinai> Since it's, well, heavier
[20:04:05] <LeelooMinai> I know it's 3 times stronger, but still
[20:04:34] <Valen> whats hard about it?
[20:04:40] <LeelooMinai> But the problem is, I won't be able just cut steel tubes, wheras with aluminum beams I can handle it.
[20:04:44] <Valen> are you going to be milling abything?
[20:04:48] <Valen> why cant you cut it?
[20:05:23] <LeelooMinai> I bought nice non-ferrous circular saw blade - I invested in it jsut to cut those alu beams. I am not prepared for steel (no tools, no welder, no skills, etc.)
[20:05:41] <Valen> fairy nuff
[20:05:47] <LeelooMinai> The CNC is supposed to mill a bit in aluminum
[20:06:33] <LeelooMinai> BUt it's not very big - 50cm by 50cm footrpint for the frame
[20:08:16] <LeelooMinai> Ok, so, for those blocks - I could use somethiong different than that JB Weld?
[20:08:24] <Valen> yes, epoxy
[20:08:34] <LeelooMinai> But it is epoxy from what I understand
[20:08:46] <Valen> yes, but its full of stuff to make it into a putty
[20:08:50] <Valen> its also expesnive
[20:09:12] <Valen> you should be able to get a liter or two of a decent epoxy for ~$20-40
[20:09:16] <LeelooMinai> Ok, but doesn't it work better on metals than "mnormal" expoxy?
[20:09:38] <Valen> its the duct tape of the epoxy world
[20:09:50] <Valen> its not what you glue airbusses together with
[20:10:01] <Valen> (and yes they are glued together)
[20:10:44] <LeelooMinai> H,,. I will have 16 inch^2 area and pretty tight fit
[20:11:09] <LeelooMinai> What am I even looking for? Just any epoxy?
[20:11:16] <LeelooMinai> 6061T6 alu
[20:11:25] <Valen> IT feels like you are trying to build the machine from your hardware store, all stuff for nannas to use
[20:11:49] <LeelooMinai> na-what? :)
[20:12:01] <Valen> if you are prepared to use the phone and call suppliers (they generally aren't online) you can get the stuff the professionals use
[20:12:17] <Valen> http://www.smh.com.au/ffximage/2007/09/12/rg_nanna_wideweb__430x428,0.jpg
[20:12:55] <LeelooMinai> Right, well, I am researching...
[20:13:16] <Valen> thats a good place to start ;->
[20:13:29] <LeelooMinai> And calling random shops usually ends with them wanting a lot of money. Like one that quoted me $1k for some 16 by 16 MIC-6 plate:)
[20:13:32] <Valen> As i was saying, if you are doing wood you want acceleration more than most everything else
[20:14:02] <LeelooMinai> I am not doing wood - I want hobby CNC platform, that can allso mill (slowly is ok) some alu parts.
[20:14:03] <Valen> you need to 1) not sound like a chump and 2) know how they do stuff so you know whats cheap ;->
[20:14:41] <LeelooMinai> Well, that's great, but that's also why I asked here:)
[20:15:30] <LeelooMinai> I usually order things for my projects online though - I don't even have a car to drive around.
[20:16:15] <Valen> that will signifigantly hinder you getting stuff cheap lol
[20:16:32] <Valen> an OD of 500mm you could *almost* do in scrap
[20:16:37] <LeelooMinai> Hej, not really - I saved a lot by ordering from CHina/ebau/aliexpress
[20:16:47] <WalterN> o.0
[20:16:56] <WalterN> $600 for one of these... http://www.luminapower.com/ldpc
[20:16:57] <Valen> for motors and bits sure
[20:17:10] <Valen> getting a few meters of pipe not so much
[20:17:11] <WalterN> thats bloody expensive
[20:18:03] <LeelooMinai> Valen: My plan for getting tubes is http://www.metalsupermarkets.com/ - they have a place in my city. I was wondering mostly about the gluing part
[20:19:04] <LeelooMinai> For example - would epoxy by itself do, or I need cap screws too, or maybe only cap screws?
[20:19:24] <Valen> jb weld won't flow into the join, you want an epoxy, seal up the outside of the join with plasticine, then flood the joint with epoxy
[20:19:27] <WalterN> bah
[20:19:37] <WalterN> so what am I going to do about a power supply?
[20:19:49] <Valen> if you do it right and get everything clean epoxy would probably suffice
[20:20:09] <LeelooMinai> Valen: If a seal it, how can I flood it?
[20:20:29] <Valen> put the pipe up on end plug the end, seal the join
[20:20:33] <Valen> drill a hole in the pipe
[20:20:37] <Valen> fill the end with epoxy
[20:21:34] <LeelooMinai> Hmm... but if the fit is good, would it not stop the epoxy of flowing into the joint?
[20:23:14] <LeelooMinai> I thought it's applied like, I don't know, just glue - I would smear it on the surfaces and then slide together (?)
[20:24:28] <r00t4rd3d> if you stand in front of a lathe, does it spin forward or backward?
[20:41:56] <Valen> glue often works best with a thickness to work with
[20:42:05] <Valen> if you have 0 space you have 0 glue
[20:42:15] <Valen> r00t4rd3d: the top goes towards you
[20:45:19] <PetefromTn> Hey guys,gals...
[20:45:58] <Valen> I'd plan on a gap of around a mm, flood it with epoxy, and vibrate it
[20:53:26] <pcw_home> WalterN: you can use a voltage supply (say 3.3V) with a series resistor if you dont mind the power loss
[20:54:12] <Felix29> for a couple hundred mA, just get a LM317
[20:59:09] <pcw_home> ~45A
[20:59:37] <Felix29> oh, then you'll need a bigass resistor for that :>
[21:01:09] <pcw_home> ~28 mOhm 60W
[21:02:14] <Felix29> yeah that'll work
[21:02:35] <Felix29> can you buy those? i haven't used anything beyond 30W
[21:03:21] <pcw_home> I suspect you would have to cobble it together from bits and pieces
[21:03:46] <Felix29> i guess you could use 4 15W ones in parallel
[21:04:07] <Felix29> i think you can get 1 ohm 15W ones
[21:04:33] <Felix29> for some reason, though, even the idea seems ridiculous
[21:05:20] <Tecan> http://www.youtube.com/watch?v=H5dt_8xXgqo
[21:08:13] <r00t4rd3d> Im gonna make my own lathe
[21:08:22] <r00t4rd3d> out of wood
[21:08:26] <r00t4rd3d> 2x4's
[21:08:34] <r00t4rd3d> pulley too
[21:08:38] <Felix29> i've seen some with sewing machine motors
[21:08:42] <Felix29> good luck!
[21:08:53] <r00t4rd3d> i got motors
[21:10:29] <L84Supper> 3D printing with epoxy granite composites
[21:10:32] <r00t4rd3d> gonna make a digital probe tonight though
[21:10:57] <Felix29> :>
[21:12:49] <L84Supper> LeelooMinai: where are you located? (country)
[21:13:02] <LeelooMinai> Canada
[21:13:53] <L84Supper> would you be able to UV cure the outside of the epoxy?
[21:14:19] <L84Supper> take it out in the sun for 30 seconds
[21:14:25] <LeelooMinai> Maybe, yes
[21:15:58] <L84Supper> LeelooMinai: I guess Id' have to see what you have in mind, i was just reading back over the discussion
[21:16:26] <LeelooMinai> Just alu tubes close on both ends with solid-alu cubes
[21:16:31] <LeelooMinai> close=closed
[21:16:37] <LeelooMinai> And filled with sand
[21:17:03] <L84Supper> lose sand?
[21:17:21] <L84Supper> loose
[21:17:23] <LeelooMinai> Well, yes, jsut sand - for weight and vibration dampening
[21:19:03] <L84Supper> sand + polyester resin (used for fiberglass) is $36/gallon at Home Depot
[21:19:33] <LeelooMinai> Hmm, plyester resin - is that like epoxy?
[21:19:42] <L84Supper> it sets up like epoxy
[21:20:00] <LeelooMinai> BUt that would glue the cubes to tubes, right?
[21:20:24] <LeelooMinai> e're sorry, we were unable to find any matches for "polyester+resin" <- get this at Home Depot
[21:20:32] <L84Supper> yeah
[21:20:52] <L84Supper> http://www.homedepot.com/p/t/202077791?catalogId=10053&langId=-1&keyword=Fiberglass+Resin&storeId=10051&N=5yc1v&R=202077791
[21:21:10] <L84Supper> it comes with a tube of hardener
[21:21:35] <LeelooMinai> O, great - will look into it, thx
[21:21:35] <L84Supper> has a little MEKP in it
[21:21:49] <L84Supper> sets up like a rock
[21:21:55] <LeelooMinai> MEKP?
[21:22:02] <L84Supper> try some sand in the mix
[21:22:29] <L84Supper> even pebbles
[21:22:56] <LeelooMinai> Ok, well, but sand was only to fill the remaining tube void
[21:23:20] <LeelooMinai> The cube would be pretty close in dimensions to the inside of the tube
[21:23:32] <LeelooMinai> SO, not sure how pebbles fit there:)
[21:24:04] <L84Supper> like I said I'd have to see what you're doing
[21:24:15] <Valen> http://www.cnczone.com/forums/general_metal_working_machines/118358-phenolic_basalt_head_our_hm45.html
[21:24:26] <Valen> LeelooMinai: he is talking about to fill the tube
[21:24:34] <Valen> that is our "epoxy granite" head
[21:25:09] <L84Supper> seems like it was just yesterday
[21:25:22] <LeelooMinai> L84Supper: Right, ok, I don't really want to fill the whole tube with epoxy - just glue the solid alu cubes to its ends
[21:26:02] <L84Supper> what are the tubes made of?
[21:26:08] <LeelooMinai> 6061T6
[21:26:18] <L84Supper> aluminum to aluminum?
[21:26:23] <LeelooMinai> Yes
[21:26:50] <L84Supper> aluminum powder + fiberglass resin
[21:27:13] <L84Supper> since you can thread or weld for some reason
[21:27:14] <LeelooMinai> Wouldn't it be like this JD Weld ?
[21:27:25] <L84Supper> yeah, but far lower cost
[21:27:50] <jdh> where does one get powdered aluminum?
[21:28:17] <jdh> other than fine stuff for pyrotechnics
[21:28:34] <LeelooMinai> Well, I can tap + put cap screws in there too - not sure though if that would be enough to mekw this stiff for CNC frame
[21:28:42] <L84Supper> yeah for got it's not the 90's anymore
[21:28:54] <L84Supper> paint store that still makes paint
[21:29:11] <LeelooMinai> jdh: Aluminium block + course sandpaper + a lot of time? :)
[21:29:31] <L84Supper> http://compare.ebay.com/like/280490149763?var=lv&ltyp=AllFixedPriceItemTypes&var=sbar
[21:29:34] <L84Supper> ebay
[21:30:34] <LeelooMinai> Ok, why is the powder helping in this case anyways?
[21:30:49] <jdh> makes it shiny and pretty!
[21:30:53] <jdh> and stronger for tapping
[21:30:58] <Valen> I wouldn't use al powder ;-P
[21:31:03] <L84Supper> it will raise the flexural modulus
[21:31:06] <Valen> talc if you want to thicken stuff
[21:31:38] <L84Supper> the resin I pointed to at Home Depot already has talc in it
[21:32:03] <L84Supper> http://www.carbon-fiber.us/west-system-420-aluminum-powder-6oz-p-153.html
[21:32:06] <Valen> vinyl ester resin is decent, though epoxy will generally be better in terms of stick to Al
[21:32:19] <Valen> more expensive though
[21:32:20] <LeelooMinai> Hmm, if I will have tight fit between those cubes and tubes - would resin do anything or it wouyld be futile?
[21:32:59] <L84Supper> how about just an interference fit
[21:33:08] <L84Supper> press it in
[21:33:38] <LeelooMinai> Since I will get 2.5x.2.5x1/4 tubes - which whill have inside area of 2 by 2 inch, and solid cubes of that size...
[21:34:20] <LeelooMinai> Well, I thought press it in + add 8 cap screws (2 on each side) + glue... not sure though now if glue will help with such tight fit
[21:34:57] <LeelooMinai> Maybe I worry too much and the whole beam will be stiff enough?
[21:35:56] <L84Supper> ah I thought you wanted to stiffen and add weight to the tubes
[21:36:32] <LeelooMinai> Well, the purpose of the cubes is to allow joining the beams to flat surfaces really - but they will stiffen the tubes too
[21:38:08] <LeelooMinai> Without the cubes I would have no easy way to join the beams perpendiculary to flat plates/angles
[21:42:20] <LeelooMinai> I do this mostly because this way I will get the same stiffness for half the price (I hope)
[22:06:41] <WalterN> pcw_home: well... a computer power supply I have will do 3.3v at something like 30 amps
[22:07:00] <WalterN> that will work for testing the laser diode anyway
[22:13:26] <pcw_home> Make sure there's a reverse protection diode on the laser diode and dont live switch the DC lines
[22:14:12] <pcw_home> (43 millohms is 30A with 1.3V drop)
[22:20:51] <WalterN> how would I vary the amps though?
[22:27:51] <WalterN> heh
[22:28:14] <WalterN> could get two computer power supplies, seems most have 3.3 volts at 25 amps
[22:28:14] <pcw_home> slide wire?
[22:29:15] <WalterN> what is a slide wire?
[22:32:59] <r00t4rd3d> Sorry WalterN, that answer is incorrect.
[22:33:20] <r00t4rd3d> Ill take porn for 200
[22:33:36] <WalterN> heh
[23:29:47] <AR_> <WalterN> how would I vary the amps though?
[23:29:49] <AR_> for what
[23:29:58] <AR_> you just want to limit it through the laser diode?
[23:30:07] <AR_> use a potentiometer
[23:30:35] <AR_> i'd put another small resistor in series to prevent turning hte pot to zero and burning it out