#linuxcnc | Logs for 2013-08-14

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[00:27:04] <nspiel> is anyone there?
[02:06:24] <DJ9DJ> moin
[03:48:19] <erasmo> hi all
[03:48:20] <kengu> what could be the options to use linuxcnc without a parallel port. Or is it just better to go the parallel port way. this would be the third cnc-machine using linuxcnc and the previous ones are with parallel
[03:48:28] <erasmo> I have a problem with lcnc latency
[03:48:39] <erasmo> My motherboard i a Gigabyte Ga-p35-ds3r
[03:48:48] <erasmo> under ubuntu 10.04 in lcnc i have hudge latency
[03:48:55] <erasmo> but under ubuntu 8.04 latency is ok
[03:49:03] <erasmo> is there any tool for logging what kind of program/hardware causes latency issues?
[03:51:25] <erasmo> my cpu is Intel core2duo
[04:08:25] <archivist> kengu, mesa card in pci slot
[05:18:57] <kengu> archivist: as in I might as well just use the lpt-port
[05:19:49] <archivist> with the mesa cards you get hardware counting an better servo support and extra I/O
[05:20:13] <archivist> not the same as a parallel port
[05:21:43] <archivist> the counting speed on parallel port is limited and the stepper performance requires better latency on parallel than with a mesa card creating the steps in hardware
[05:22:50] <kengu> true
[05:29:04] <archivist> I have a 5 axis mill crammed into one parallel port, not ideal
[05:36:17] <kengu> archivist: well.. that cnc is just a plasma so it is in my research pretty doable with parallel
[05:37:44] <archivist> depends, plasma seems to need some kind of active height control
[05:38:47] <kengu> I spent yesterday evening reading about THC, (torch height controller) etc
[06:37:28] <kengu> not a linuxcnc question but my ncstudio-router when trying to change tool: goes to tool holder with the tool, releases the tool, waits for some 5 seconds or so and then locks the tool again and ends the procedure. any idea on how the thing should work.
[07:18:37] <kengu> maybe something like this to the plasma, http://www.cnc4you.co.uk/index.php?route=product/product&product_id=160
[07:21:41] <archivist> some stepper drivers have the opto built in so less is needed on the breakout
[07:22:49] <archivist> I tend yo have just a driver chip like a ULN2002 or 74 series open collector driver
[07:25:07] <kengu> is it causing something bad if there are multiple optos in the chain
[07:25:49] <jdh> some are too slow for fast stepping
[07:25:56] <archivist> no except some are a bit slow or need current
[07:31:46] <kengu> well.. there are optos on the drivers
[07:34:07] <archivist> what I have done so far it get some old parallel cable and terminate it on some vero board( perf board) and add whatever is really needed for the machine in question
[07:35:08] <archivist> I have enough parts that compared to that item you showed it is £45 cheaper
[07:36:34] <kengu> that is pretty much true
[07:39:47] <Tom_itx> sure hope you didn't order anything UPS lately. one of their planes just crashed
[07:40:17] <kengu> nothing that should be there on the states at least
[07:40:22] <kengu> should or could
[07:40:46] <kengu> mainly those snailmail postal services from cn or hk
[07:43:30] <PetefromTn> mornin everyone..
[07:43:54] <Tom_itx> in birmingham
[07:45:08] <archivist> which birmingham
[07:46:43] <Tom_itx> baba
[07:46:50] <Tom_itx> bama*
[07:47:15] <PetefromTn> Apparently the pilot and copilot are dead..
[07:47:37] <archivist> second recent cargo crash, National Air Cargo in Afganistan in April
[07:48:06] <Tom_itx> what's with all these planes going down lately?
[07:49:00] <PetefromTn> Dunno really most of them almost fly themselves nowadays..
[07:49:07] <archivist> reduced costs
[07:49:32] <Tom_itx> heck, terrorists can fly better than that one pilot
[07:49:59] <PetefromTn> That's pretty harsh
[07:50:31] <Tom_itx> consider the experience level
[07:50:40] <PetefromTn> Well guys I have got a dilemma here...
[07:51:08] <PetefromTn> I dunno if I have mentioned it on here before but my family and I wish to move back to Florida.
[07:51:33] <PetefromTn> In that direction we have just listed our home with a realtor locally.
[07:51:36] <archivist> and live above a sink hole ?
[07:51:36] <jdh> to join the rest of the canadians and new yorkers?
[07:51:52] <PetefromTn> Yes exactly, I am FROM new york...
[07:52:16] <jdh> where in .fl.us?
[07:52:26] <PetefromTn> at least was born there and lived until I was five then we moved to florida
[07:52:41] <PetefromTn> Hopefully Port St. Lucie.
[07:52:48] <jdh> I go to FL 4-5 times a year.
[07:53:24] <PetefromTn> Anyways, the dilemma is this..
[07:53:30] <jdh> now that my kids are out of school, I could move there.
[07:53:59] <PetefromTn> As many of you know I have bought a Cincinatti Arrow 500 VMC and converted it to run on linuxCNC
[07:54:31] <PetefromTn> This machine is about 7k lbs and is slightly taller than your average garage door.
[07:54:58] <PetefromTn> So far it has been a great machine and while not completely finished it is working well now except for the toolchanger setup.
[07:55:24] <archivist> post it to me :)
[07:55:35] <Tom_itx> haha
[07:55:38] <PetefromTn> The problem here is that MOST homes in Florida we will be looking at wil be CBS construction with typical garage doors.
[07:55:41] <jdh> I'll give you $1250 for it and pick it up.
[07:56:16] <PetefromTn> Unlike our house here which has a 9' garage ceiling height
[07:56:29] <PetefromTn> and the ability to remove the overhead over the garage door.
[07:56:40] <jdh> look for a house with some space on the side, pour a pad, a mill room.
[07:57:00] <PetefromTn> In short it will most likely be difficult to find a home that has a large enough garage door opening.
[07:57:29] <PetefromTn> Making a slab is NOT a bad idea really but knowing the code enforcement of PSL area I should think they would be a PIA about it,"
[07:57:41] <archivist> it can live on grass till the concrete is hard
[07:57:54] <jdh> when was the last time you were in PSL?
[07:58:30] <PetefromTn> If we can get a home with a shop that would be great but I am not sure what we will find.
[07:58:42] <PetefromTn> about a year and a half ago.
[07:59:43] <PetefromTn> I am CONSIDERING selling this machine here and then either buying another machine down there that will fit at my leisure
[07:59:55] <PetefromTn> because there is also the moving costs of the machine.
[07:59:58] <jdh> I'll give you $1250 for it and pick it up.
[08:00:28] <PetefromTn> LOL sorry man it was worth much more than that when it was NOT working...
[08:00:52] <archivist> 1251 dolla ?
[08:01:30] <PetefromTn> I am ALSO considering trying to TRADE it for a VERY nice heavy duty 4x8' CNC router table and some cash..
[08:03:14] <PetefromTn> Since I have gotten it built I have not been able to find a ton of good paying work for the machine and I have actually had a lot more call for the woodworking and cabinetry work I have been doing for years.
[08:04:00] <jdh> how does one obtain work for a mill?
[08:04:09] <PetefromTn> The CNC router should be able to do the cabinet carcasses and drilling shelf pin holes etc.
[08:04:23] <PetefromTn> Good question LOL
[08:04:26] <archivist> I wish I knew how to get good paying work too
[08:05:04] <PetefromTn> I am making more money in a months work doing this custom kitchen then I have made with the milling machine in the past three months..
[08:05:51] <Tom_itx> living around an industrial area helps. aircraft, farm equipment, auto, forestry etc
[08:06:00] <PetefromTn> Plus I can probably do some cool sign work and other stuff with the router.
[08:06:40] <PetefromTn> I dunno what to do here, I have done all this work and invested a LOT of money into the VMC hoping it would pay off and so far it has not done much at all.
[08:07:02] <PetefromTn> I would RATHER keep the VMC because I know what it can do but I gotta be a realist too.
[08:07:13] <Tom_itx> what's it cost to haul and store it?
[08:07:21] <PetefromTn> Moving the machine to FLorida will probably be about $2k just by itself.
[08:07:23] <Tom_itx> opposed to taking a loss on it
[08:07:47] <PetefromTn> Might be able to do better than that if I shop around.
[08:08:03] <PetefromTn> I will NOT take a loss on the machine no matter what happens.
[08:08:49] <PetefromTn> It is worth a lot more than I have in it since I got it for such a low price initially.
[08:09:10] <PetefromTn> It does have a COMPLETLEY brand new electronics system in it now tho.
[08:09:19] <PetefromTn> All brand new Teco motors and drives
[08:09:26] <PetefromTn> A brand new computer and monitor.
[08:09:43] <Tom_itx> if the realtor sells, you might be under more pressure to make a move on it
[08:10:11] <PetefromTn> a complete Mesa card setup which is infinitely expandable.
[08:10:37] <PetefromTn> Yeah I know but I told them I NEED to have at least a month to do something with the machine so they are aware.
[08:10:56] <PetefromTn> with just a LITTLE bit more work this machine would be fully functional.
[08:11:16] <Tom_itx> so you're gonna have to sell it fairly quick or pay to move it somewhere, be it storage or Fl.
[08:11:31] <jdh> you could just give it to Connor
[08:11:38] <Tom_itx> or me :)
[08:11:45] <Tom_itx> i don't have room for it though
[08:11:48] <PetefromTn> It would need to be moved to florida assuming we can find a place to put it.
[08:12:02] <PetefromTn> Neither does Connor, he barely has room for his 0704 LOL
[08:12:13] <Tom_itx> and you don't wanna have to move it twice
[08:12:22] <PetefromTn> Definitely NOT...
[08:12:54] <PetefromTn> I would trade it for a NICE CNC flatbed router like a Mechmate or similar 4'x8' or larger and some cash...
[08:12:58] <jdh> buy a hefty trailer, put it on there, seal it up.
[08:13:16] <PetefromTn> Don't own a truck heavy enough to tow it with.
[08:13:31] <jdh> u-haul
[08:13:57] <PetefromTn> Naah it would probably be cheaper to just pay a rigger to move it down there.
[08:14:36] <PetefromTn> If we get what we are ASKING for our house or even close to it we should have the cash to make the move so that is not really a problem.
[08:14:50] <PetefromTn> The REAL problem is finding a home that will fit the damn thing...
[08:16:13] <PetefromTn> Interestingly enough my wife does not want me to sell the machine as she thinks I will be able to find work for it at some point and make some good money with it. She is probably correct.
[08:17:01] <PetefromTn> Anyways, I dunno what to do really, if we get an offer on the house in the next few months we will be needing to make a decision pretty darn quick.
[08:17:25] <PetefromTn> I gotta get my ass out into the shop and build a refridgerator cabinet now.
[08:17:25] <jdh> got a realtor down there?
[08:17:52] <PetefromTn> Naah we will most likely just travel down there and look with friends and family at homes for sale.
[08:18:28] <PetefromTn> Who knows maybe my house won't sell at all...
[08:19:12] <jdh> a friend that works at alcoa sent me an email saying they were hiring lots of people
[08:19:27] <PetefromTn> The Realtor we hired seemed to think we are priced pretty good and she said it should sell pretty quick.
[08:19:40] <PetefromTn> REALLY? I thought that place was dying...
[08:20:02] <PetefromTn> would never want to work there tho, that is a pretty dangerous place to work.
[08:20:06] <jdh> so did I. Evidently they will be making something other than can stock
[08:20:34] <jdh> I did some work there in the early 90s. Massive place.
[08:20:48] <PetefromTn> They sure make some damn fine aluminum tho.
[08:22:45] <PetefromTn> Anyways, I am gonna need to make a decisiion about what to do about the machine here and move forward with this before I sell the house I think.
[08:26:07] <PetefromTn> Apparenlty Google admits that email you send with Gmail is NOT private. Not that we ever really thought it was LOL
[08:26:49] <PetefromTn> Oh well talk later guys...Have a good day.
[08:30:55] <Jymmm> Do SS welding rods come in 12" lengths? IF so, what is the largest diameter?
[08:35:49] <PetefromTn> http://www.lincolnelectric.com/en-us/support/welding-solutions/pages/stainless-steel-electrodes.aspx
[09:12:20] <nspiel> is anyone there
[09:13:22] <cradek> hi nspiel
[09:13:27] <cradek> there are always lots of people here
[09:13:56] <nspiel> hi, looking for some guidance on setting up my 7i43 and making sure i set up my onboard parallel port correctly
[09:14:56] <cradek> cool, the custom on irc is to go ahead and explain/ask and then stick around, and if anyone can help they will
[09:15:43] <pcw_home> You should set the parallel port to EPP mode in the BIOS (v1.9 if you have an option)
[09:16:06] <nspiel> yep i already did that
[09:16:23] <pcw_home> 7I43 option jumpers both down
[09:16:35] <nspiel> @ tcradek the custom on irc?
[09:16:47] <nspiel> oh i forgot to set the jumpers
[09:16:54] <nspiel> hopefully it did not break the board
[09:17:31] <nspiel> it lit up when i plugged it into parallel port
[09:17:33] <pcw_home> (W4,W5 down)
[09:18:07] <pcw_home> also the 7I43 needs 5V power
[09:19:14] <pcw_home> It is possible to break 7I43s but nothing you do with jumpering will hurt
[09:19:51] <nspiel> ok thats good. I was going to try to use pncconf. Is that the right way to set up the 7i43 to work with my 7i25s
[09:20:37] <pcw_home> dont live plug the parallel cable when the 7I43 is connected to your machine (ground loop s are a known way to fry the 7I43)
[09:21:24] <nspiel> i just plugged the 7i43 with their cable to the parallel port on the computer. the 7i43 is not connected to anything
[09:21:26] <nspiel> and it lit up
[09:22:13] <pcw_home> Yeah if you made that special cable, the standard SVST4_4 config should work with pncconf (7I25s connected to P4, the inboard 50 pin connector)
[09:23:53] <pcw_home> The parallel port pins will (sort of) power the 7I43, but to operate, the 7I43 needs 5V
[09:24:39] <nspiel> oh ok. Gotcha. i have the 7i43-2 right?
[09:24:45] <nspiel> because it has p3 and p4?
[09:35:34] <nspiel> @pcw which daughter boards should i select? 7i29?
[09:36:18] <Gigs-> Hi guys, a little offtopic but you guys would probably know. I'm looking for a flange bearing that can support a hanging load (doesn't swivel around like a normal self-aligning flange), I'm thinking I need one with tapered rollers. What is such a thing called?
[09:36:35] <pcw_home> all 7I43s have P3 and P4
[09:36:36] <pcw_home> On the standard 4 axis servo configurations the servo interface in on P4
[09:36:37] <Tom_itx> for an I beam?
[09:36:38] <pcw_home> Yes, 7I29 should work
[09:36:56] <Jymmm> nspiel: You don't need to use '@', just saying their name is enough.
[09:37:07] <Gigs-> irtwitter
[09:37:27] <Tom_itx> Gigs-, google I beam trolley
[09:37:33] <nspiel> oh ok thanks
[09:37:36] <Gigs-> ok I'll take a look
[09:37:57] <Gigs-> Tom_itx: no not that, just a flange bearing
[09:37:58] <nspiel> but what is the selection on pncconf that is 7i43-4 and 7i43-2?
[09:39:11] <Gigs-> Tom_itx: like this guy swivels around https://d2t1xqejof9utc.cloudfront.net/screenshots/pics/0d69fad4f2bd0939c87f5580f0804536/medium.JPG
[09:39:12] <pcw_home> those are the 2 7I43 versions with different FPGA sizes (so pncconf can select the right firmware)
[09:39:18] <Tom_itx> Gigs-, like a garage door bearing?
[09:39:30] <Gigs-> Tom_itx: I want one that doesn't do that, that can support a horzontal load without swiveling
[09:39:40] <Gigs-> I'll check those
[09:39:53] <Tom_itx> not sure
[09:40:11] <Tom_itx> if that didn't swivel, the bearing load would be on the wrong axis it appears
[09:40:23] <Tom_itx> that's why they have pillow blocks
[09:40:50] <Gigs-> yeah that's why I think it has to be a tapered roller
[09:40:59] <Gigs-> because ball bearings don't like that direction loading
[09:41:10] <Tom_itx> http://www.vxb.com/page/bearings/PROD/Kit7369?gclid=COrBmp-S_bgCFZKk4Aodhn0AhA
[09:41:12] <Tom_itx> or such
[09:41:31] <Gigs-> that pillow swivels too
[09:41:46] <Tom_itx> it was the first pic i saw of a pillow block :D
[09:42:18] <Tom_itx> http://www.vxb.com/page/bearings/PROD/Kit7358
[09:42:23] <Tom_itx> does that one?
[09:43:37] <Gigs-> yeah
[09:43:58] <Gigs-> I know this thing exists, I've seen it before with tapered rollers, just not sure what the exact keyword is to find it
[09:46:28] <nspiel> how do i know which fpga size i have? by the two p3 and p4 connectors? Are those the "fpga" connectors?
[09:46:57] <pcw_home> 7I43-2 is 200K 7I43-4 is 400K
[09:47:47] <pcw_home> FPGA size does not affect the pinouts or number of available I/O (all 7I43s have P3,P4 and 48 I/O available)
[09:47:51] <nspiel> how do i know which one I have?
[09:48:11] <pcw_home> look at the label?
[09:48:49] <Gigs-> hard core.. what are you fpga-ing?
[09:49:19] <nspiel> oh ok gotcha
[09:50:15] <nspiel> Also for the standard machine config I selected Scara. What other files do I need? Just the .c kinematics file?
[09:51:37] <pcw_home> I know nothing about scara configs so maybe someone else can help with that
[09:52:42] <nspiel> ahh ok, but more with pncconf- I went into bios and saw three options for the hex location of my parport one that was selected was 378h
[09:52:53] <nspiel> is this what i enter as the parport location in pncconf
[09:57:32] <pcw_home> 0x378 is the usually motherboard default so I would leave it at that
[10:03:22] <nspiel> is that the same as 378h?
[10:05:08] <pcw_home> yes 0x378 is a 'C' ism
[10:06:22] <nspiel> also for the scare i have a z motor, two planar joint motors and a manipulator motor. Does that mean for pncconf I should use xyza?
[10:07:37] <pcw_home> Not sure pncconf knows about scara configs
[10:16:38] <nspiel> its seems like it doesnt.. is there another way to run that config? or an easy way? or a traditional way?
[10:19:31] <archivist> Gigs-, car wheel hub, two bearings
[10:22:04] <pcw_home> I would get the 7I43 working and configured before worrying about kinematics
[10:22:05] <pcw_home> You will very like need to edit the hal file (you can start with the pncconf generated one)
[10:22:07] <pcw_home> First steps are:
[10:22:08] <pcw_home> Get 5V power wired to 7I43 and 7I25s
[10:22:10] <pcw_home> connect encoders (do not connect motors or motor power)
[10:22:11] <pcw_home> Check encoder operation and direction
[10:29:10] <Gigs-> archivist yeah like that would work, still can't find one though!
[10:29:33] <archivist> one...scrap yard
[10:29:46] <Gigs-> oh, an actual car bearing would be way to big
[10:29:49] <Gigs-> too
[10:30:09] <nspiel> pcw will you be around tonight?
[10:30:33] <Gigs-> I just need a little 3/4 inch bore one
[10:30:41] <pcw_home> Probably
[10:32:24] <archivist> Gigs-, er small car the dimensions are about that, but probably two differing diameters, see also trailer spares and hubs
[10:35:07] <archivist> Gigs-, http://www.indespension.co.uk/Unbraked-Trailer-Hubs.html
[10:40:15] <Tom_itx> haha i didn't think of that
[10:43:55] <archivist> we used a car hub from a front wheel drive to put a prop on a raft to steer the prop
[10:44:29] <nspiel> does anyone here know about scara config
[10:44:35] <Tom_itx> i just changed a set of those too
[10:45:30] <archivist> nspiel, in irc ask the real question not do we know about x
[10:47:29] <nspiel> what is irc
[10:48:18] <archivist> you are speaking on it
[10:49:06] <nspiel> oh ok. Well I am trying to configure a scara robot. What is the best way to start the configuration and interfacing with the mesa 7i43 I have? It seems like there is not an easy way to do it through pncconf
[10:49:40] <cradek> it's a common mistake to think you have to figure out who to ask and then get their permission before saying what specific thing you want -- instead, ask the whole channel your best and most specific question and people will help if/when they can.
[10:50:16] <nspiel> \ok thank you. i am new to this
[10:50:51] <cradek> I suppose you could use pncconf to get the hardware working and motors moving, but then you will have to divert and change to a scara configuration manually
[10:51:16] <cradek> you could study the scara sample config (which I think is a simulation with no hardware interfacing) to see what makes it special, and how the kinematics are configured
[10:55:05] <Gigs-> archivist thanks for the tip, I'm seeing two dimensions listed on a lot of these trailer hubs, do they use a stepped shaft or something?
[10:55:56] <Gigs-> hmm yeah it looks like some of them do
[10:59:29] <Gigs-> still an excellent lead, super cheap compared to some of the industrial taper bearings I've been looking at
[11:03:33] <nspiel> how do you change configurations manually? write a custom config or hal file?
[11:04:45] <JT-Shop> I use Gedit
[11:04:56] <Tom_itx> ja
[11:05:19] <Tom_itx> JT-Shop, how's the jt-mart coming along?
[11:05:28] <archivist> Gigs-, yes a stepped shaft
[11:05:33] <JT-Shop> lol slow
[11:06:11] <Tom_itx> any colored parts yet?
[11:07:17] <JT-Shop> getting close, got some fresh chemicals in the other day
[11:07:33] <JT-Shop> just need to do some final tweaking on the system before I fire it up
[11:08:42] <Tom_itx> i saw a 'backwards' can am the other day
[11:08:46] <Tom_itx> forget what brand it was
[11:08:55] <Tom_itx> single front wheel
[11:09:06] <JT-Shop> it's called a trike
[11:09:09] <JT-Shop> lol
[11:09:19] <Tom_itx> yeah but i don't know the mfg
[11:09:34] <JT-Shop> the one with the steering wheel?
[11:09:44] <Tom_itx> umm yeah i think it may have
[11:10:08] <Jymmm> golf cart??
[11:10:11] <JT-Shop> Stallion or something similar
[11:10:12] <Tom_itx> it was shrouded in so much plastic it was hard to see going down the road
[11:10:17] <JT-Shop> even has AC
[11:10:29] <JT-Shop> there is at least one around here
[11:10:30] <nspiel> what is gedit
[11:10:44] <Tom_itx> a linux text editor
[11:10:45] <JT-Shop> a text editor
[11:11:10] <Tom_itx> i put an icon on the screen for it
[11:11:17] <nspiel> so i will have to manually overwrite the config file with a text editor?
[11:11:28] <JT-Shop> at some point yes
[11:11:33] <Tom_itx> that's the way the big boys do it
[11:11:39] <JT-Shop> it's not like Mack
[11:12:07] <Tom_itx> it's not that difficult either once you read what the parameters are for
[11:13:33] <nspiel> whats the best way to learn the implementation and how it works
[11:13:46] <Jymmm> read?
[11:13:49] <JT-Shop> the manual and the man pages
[11:14:07] <JT-Shop> http://www.linuxcnc.org/docs/html/
[11:14:33] <JT-Shop> scroll to the bottom of that link for all the components
[11:14:40] <JT-Shop> http://www.linuxcnc.org/docs/html/config/ini_config.html
[11:14:58] <JT-Shop> and last but not least http://www.linuxcnc.org/docs/html/hal/basic_hal.html
[11:15:33] <Tom_itx> do those cover the kinematics?
[11:16:04] <nspiel> I already have the kinematics file
[11:16:34] <nspiel> I know the kinematic equations are correct because i rederived them and checked them but im not sure the implementation is
[11:16:45] <nspiel> the guy i got it from had a working scara though so i assume they are
[11:17:43] <Tom_itx> just don't let it chase you around the room
[11:20:47] <nspiel> huh?
[11:21:01] <Tom_itx> the arm
[11:21:07] <JT-Shop> Tom_itx: this one? http://www.motortrike.com/trikeThoroughbredStallion.aspx
[11:21:47] <Tom_itx> looks like it
[11:22:59] <nspiel> i havent been able to figure out if it has limit switches yet
[11:30:41] <nspiel> there is also a premade scara configuration, how much will this have to be modified to my particular setup?
[11:38:55] <cradek> nspiel: you will probably only know that once you dig in.
[12:13:30] <nspiel> what are the scara simulation files for?
[12:16:59] <CaptHindsight> nspiel: http://www.youtube.com/watch?v=Zl2NUDJL5Uk sometimes people work on things and some of it ends up available as reference or examples
[12:17:58] <CaptHindsight> http://www.youtube.com/watch?v=kzDL9Qx883I
[12:18:14] <IchGuckLive> hi all B)
[12:18:18] <cradek> if all of us who contribute to linuxcnc needed to own all the kinds of hardware it can control, that's an awful lot of hardware. simulation configs help a lot.
[12:18:49] <IchGuckLive> i agree with that B)
[12:24:21] <jdh> anyone have a drawing for a BK10 bearing block?
[12:25:26] <IchGuckLive> http://i.ebayimg.com/t/Ballscrew-end-supports-BK10-BF10-bearing-blocks-2-pcs-/00/s/MTAwMlg2MTc=/z/45EAAOxye3BRuzMt/$T2eC16FHJHIFFhoLIbPGBRuzMs1Pbg~~60_14.JPG
[12:25:38] <IchGuckLive> here is jour drawing
[12:27:51] <CaptHindsight> 39px × 64px heh
[12:29:40] <ReadError> lol
[12:30:19] <IchGuckLive> oh
[12:30:49] <IchGuckLive> http://www.ebay.de/itm/Ballscrew-end-supports-BK10-BF10-bearing-blocks-2-pcs-/250474738034
[12:30:56] <IchGuckLive> BETTER to go via link
[12:31:36] <IchGuckLive> O.O
[12:31:48] <jdh> I was hoping for a real drawing. Or at least dimensions
[12:32:09] <IchGuckLive> dimantions are on the list
[12:32:11] <jdh> but, that's the guy I got teh screw/nut from though
[12:32:21] <IchGuckLive> what file do you need i got part access
[12:32:29] <jdh> I see no dimensions
[12:32:51] <jdh> bearing sizes mainly
[12:32:54] <IchGuckLive> is it a BK 10
[12:33:29] <jdh> I see no attachment.
[12:34:03] <jdh> I thoguht I was getting a BK10 with my ballscrew, but the order was a littel confusing.
[12:35:10] <IchGuckLive> ok shoudt i upload the big image for you
[12:35:21] <jdh> I'll look for some more ebay pics
[12:35:49] <IchGuckLive> all the messurments are on the image
[12:37:10] <jdh> got one. Thanks.
[12:37:46] <IchGuckLive> NP
[12:44:07] <jdh> checked the 'invoice', it does say with BK10 and locknut.
[12:44:34] <IchGuckLive> so giver him a hint
[12:45:25] <jdh> I sent him a msg. He shipped this one regular mail though since it was small. The block will probably take another 2 weeks.
[12:45:47] <IchGuckLive> bad
[12:46:17] <jdh> I had been thinking about just pulling the bearings out of it anyway since it is bulky and not quite the right shape.
[12:47:06] <CaptHindsight> I had similar issues with ballscrews and bearing blocks from keling/automation tech. I had to stop in to be sure everything matched
[12:47:09] <IchGuckLive> why then not going for a new one homemade with all the good stuff and messurments
[12:47:18] <jdh> all the ebay/ali ballscrews are 12/16/20/25mm. Are there any standard like smaller sizes?
[12:47:34] <nspiel> captainhindsight- thats my goal. make my robot work like those
[12:47:41] <nspiel> ive seen those videos so i know its possible
[12:47:45] <CaptHindsight> some of the bearings also had detents :)
[12:47:50] <jdh> heh
[12:47:51] <IchGuckLive> 12 is lowest as it bearly can hold the 5mm tread
[12:48:23] <jdh> there are 8mm ones out there, but pricey.
[12:49:11] <jdh> the bearings that came with the other screw are labeled NSK/Japan
[12:50:47] <IchGuckLive> they all come from there even the FAG
[12:51:04] <IchGuckLive> only the fag are well inside the given parametrics
[12:52:21] <jdh> http://tinyurl.com/qc872cd
[12:52:39] <jdh> an 8mm one that costs 4x as much as the 12mm
[12:57:50] <CaptHindsight> it costs more to find children with smaller fingers to perform the assembly, they grow up so fast
[12:58:17] <jdh> breed more
[12:58:47] <jdh> I don't see bearing dimensions on the picture
[13:13:59] <Optic> just reading about emc2 for the first time in a while
[13:14:07] <Optic> still seems very parallel portish :)
[13:14:17] <archivist> not at all
[13:14:39] <jdh> linuxcnc doesn't really care what the hardware interface is
[13:14:55] <Optic> oh I was just looking at the supported hardware page in the linuxcnc wiki
[13:14:57] <archivist> it hates usb !
[13:14:58] <IchGuckLive> Optic: hi we deported to linuxcnc
[13:15:23] <IchGuckLive> usb is good on buttons nothing els
[13:16:23] <Optic> but the best way to DIY is still to use an old motherboard and shove in some PCI parallel port cards?
[13:16:37] <jdh> cheapest, not best.
[13:17:09] <jdh> if you are going to add a PCI card, add a Mesa 5i25 instead of a p-port card.
[13:17:19] * Optic googles
[13:17:34] <IchGuckLive> yeah that gives you alot of speed
[13:17:36] <Optic> oh cool
[13:17:41] <Optic> and lots of i/os
[13:17:55] <Optic> linuxcnc likes taht one?
[13:18:54] <jdh> yes, among others.
[13:19:06] <Optic> cool :) those looks like nice cards, and very fair prices
[13:19:48] <jdh> but, for non-demanding applications, linuxcnc will work as well with an existing p-port
[13:20:29] <Optic> we're on a parallel port right now but they are getting harder to find if we ever have to replace the computer. and there's not enough inputs :)
[13:20:55] <jdh> you could use a dual-port PCI card
[13:21:08] <IchGuckLive> Optic: a second parport is best at 10USD
[13:21:11] <Optic> yeah, but light you said you might as well get the 5i25
[13:21:14] <Optic> wow
[13:21:16] <jdh> mesa cards are much sexier
[13:21:16] <Optic> like you said
[13:21:21] <Optic> sorry, my fingers aren't working well today :)
[13:21:31] <IchGuckLive> Optic: are you in europ ?
[13:21:49] <Optic> nope, Canada
[13:22:13] <IchGuckLive> oh the far zone as the US dont like canadians as well as mexicans
[13:22:24] <CaptHindsight> IchGuckLive: is there a list of know good parallel port cards for <$20?
[13:22:40] <IchGuckLive> on the wiki there is a chilist
[13:22:47] <IchGuckLive> chip list
[13:23:14] <IchGuckLive> >)
[13:23:59] <Optic> cool. If I redo this project, the 5i25+7i76 looks awesome
[13:24:45] <IchGuckLive> Optic: its the first choice
[13:24:59] <IchGuckLive> for a mill
[13:25:10] <Optic> this is a laser engraver
[13:25:36] <IchGuckLive> laser engraver on a parport is to slow
[13:25:43] * Optic nods :)
[13:25:53] <IchGuckLive> the mesa will increase at least 100times
[13:26:33] <IchGuckLive> ok im getting off by
[13:26:44] <Optic> right now we have a very homebrew solution but I think new stepper drives and a new interface might make a huge difference
[13:27:33] <Optic> we have a paralell port driving a custom PIC + amplifier board, single-stepping the motors
[13:28:12] <Optic> have you tried those polou drives that are so popular with the 3d printing crowd?
[13:28:38] <skunkworks> Optic, are you rasterizing?
[13:28:43] <archivist> if you want some proper speed, servos
[13:28:46] <Optic> only occasionally
[13:28:53] <skunkworks> how are you doing that?
[13:29:32] <NickParker> hey it's silly, but would anybody mind confirming for me that this: https://lh4.googleusercontent.com/-FzhL0eKr2fM/UgrYw8o-fkI/AAAAAAAAAws/_7du9RhSlH4/w426-h568/photo.jpg is the slot the 6i25 goes in?
[13:29:35] <NickParker> the small black one.
[13:30:31] <Optic> skunkworks: good question, let me review :)
[13:30:43] <cradek> yes that's it. surprisingly you could also put it in the big slot. they're made that way on purpose (something I didn't know until recently.)
[13:30:52] <cradek> (the bigger black slot)
[13:32:20] <NickParker> yeah i realize that, but i'd like to keep the big black slot open as a possibility if i can't get ahold of an original PCI graphics card
[13:32:36] <NickParker> anyway thanks for confirmation, time to order
[13:35:31] <Optic> skunkworks: it uses the halstreamer stuff I think
[13:35:54] <Optic> graster
[13:36:39] <skunkworks> ok. you might want to look at ben stuff http://www.buildlog.net/forum/viewtopic.php?f=16&t=557&start=110
[13:37:35] <skunkworks> I don't think the hal module will work with the 5i25 as the functionallity required would have to go into the firmware. (iirc ben was working on that) (for rastering anyways - normal stuff would work)
[13:43:08] <Optic> nod
[13:44:45] <Optic> we're also always fighting with CAM software, hehee
[13:44:58] <Optic> I might give cambam a try
[13:46:02] <JT-Shop> yuck Touchy just locked up
[13:49:08] <PetefromTn> I have been playing with CamBam too. Not done a lot with it but it looks promising.
[13:58:38] <NickParker> what's a reasonable latency to try and drive steppers off of? I'm getting a gpu to lower mine later today, and my mobo has a parallel port so i'm wondering if i shouldn't try to just use that one.
[13:58:54] <NickParker> also, if i go with a 6i25 can i use the motherboard parallel port as well for auxillary functions?
[13:59:51] <NickParker> I need 4 pins per axis just for movement, which only leaves 5 on the standard port for spindle and tool changer control. If I can use the motherboard parallel port for the tool changer that would be much easier.
[13:59:58] <cradek> NickParker: 20000-25000 is generally fine for software stepping
[14:00:17] <cradek> yes you can use any combination of IO hardware
[14:01:12] <NickParker> cool thanks.
[14:38:50] <nspiel> is pcw here?
[15:16:27] <Aero-Tec> can one set up a home switch mid lathe bed and run Gcode right through the home switch?
[15:17:36] <Aero-Tec> like can the home switch be totally ignored when running Gcode?
[15:17:43] <cradek> yes -- BUT a home switch should stay triggered all the way to one end of travel
[15:18:07] <cradek> yes it is totally ignored while not homing
[15:18:23] <cradek> but if it trips in the middle of the table it better stay tripped all the way to one end
[15:18:57] <cradek> (that's why they're usually at one end)
[15:19:15] <Aero-Tec> why if it is ignored when not homing?
[15:19:28] <cradek> why what?
[15:19:54] <Aero-Tec> why does it need to stay triggered all the way to one end?
[15:20:15] <cradek> because otherwise you don't know which way to move to find it in order to home
[15:20:43] <cradek> so if you start on one side it'll work, on the other side it'll stupidly smash into a limit
[15:21:08] <cradek> if it stays triggered homing will always work right, no matter where you start
[15:21:10] <cradek> brb
[15:22:14] <Aero-Tec> I do not want to run the carriage all the way to the right, or end of bed to home and I run several chucks so homing at the chuck end will not work so a mid bed home makes more sense to me
[15:22:48] <Aero-Tec> ok
[15:23:02] <Aero-Tec> I maybe able to work with that
[15:24:08] <Aero-Tec> would it be hard to auto home just one axis?
[15:27:27] <JT-Shop> hmm, Touchy doesn't seem to "know" about M61
[15:28:29] <JT-Shop> if you run a G code program in Touchy that does not load a tool the Z axis DRO changes to something else when you start the program
[15:28:36] <cradek> neither does the gcode quickref
[15:29:16] <cradek> that makes no sense, so I don't believe you
[15:34:41] <JT-Shop> it's like a G49 is issued at the start of a program
[15:35:01] <JT-Shop> I can do a G43 H1 and the DRO reads correctly
[15:37:10] <cradek> what version?
[15:37:29] <JT-Shop> and T6 is not on the quick reference either opps
[15:38:02] <cradek> T and M6 are both on there
[15:38:04] <JT-Shop> 2.5
[15:38:38] <JT-Shop> got my T and M mixed up
[15:39:00] <cradek> ?
[15:39:21] <JT-Shop> I searched the page for T6 instead of M6
[15:41:38] <JT-Shop> this is the file I'm running very basic http://pastebin.com/Ett5udE6
[15:42:23] <nspiel> i have a 7i43 and i am trying to run pncconf with two 7i25s. Which daughter board should I select? The 7i29 seems very similar. Will it work?
[15:42:28] <JT-Shop> I touch off the tool then move down some and face along the X axis move up with G91 move over then move back down
[15:42:30] <cradek> that program wouldn't do anything would it?
[15:42:53] <JT-Shop> it starts the spindle goes to the end then comes back
[15:43:01] <JT-Shop> I use it to siize parts
[15:43:05] <cradek> but it's only a sub definition
[15:43:19] <JT-Shop> ngcgui
[15:43:36] <cradek> ok, I now know I don't know the answer to your question
[15:44:16] <cradek> I don't know how ngcgui works at all :-/
[15:44:29] <cradek> I did add touchy support for M61
[15:44:36] <cradek> M61 Q
[15:45:33] <JT-Shop> hmm when I enter M61 the Q doesn't show up
[15:45:48] <JT-Shop> the sub would be the same as a regular sub really
[15:45:51] <cradek> I just added it
[15:46:16] <cradek> it didn't know about M61 so it just assumes there are no arguments
[15:46:35] <nspiel> i have a 7i43 and i am trying to run pncconf with two 7i25s. Which daughter board should I select? The 7i29 seems very similar. Will it work?
[15:48:20] <JT-Shop> cradek: thanks
[15:48:57] <JT-Shop> nspiel: best to ask on the forum the author of pncconf hangs out there
[16:01:23] <JT-Shop> I found the problem, the std ngcgui preamble does do a G49
[16:06:32] <cradek> aha
[16:07:28] <jthornton> sure had me going for a bit
[16:17:37] <DJ9DJ> gn8
[16:34:40] <Nick001-Shop> andy - found the ppmc.0.encoder.03.velocity pin in halmeter - 1rpm=1000.033, 10rpm=1000.033, 100rpm=7000.231. What should they be and how do I fix them?
[17:29:46] <Nick001-Shop> andypugh - you around?
[17:32:27] <andypugh> Sort-of
[17:34:14] <Nick001-Shop> andy - found the ppmc.0.encoder.03.velocity pin in halmeter - 1rpm=1000.033, 10rpm=1000.033, 100rpm=7000.231. What should they be and how do I fix them?
[17:35:19] <Nick001-Shop> feed rates a screwed up. 0.002 feed per rev at 400 rpm flies
[17:35:28] <Nick001-Shop> a/are
[18:02:09] <andypugh> Nick001-Shop: SOunds like a problem with the velocity scaling.
[18:03:25] <andypugh> But perhaps the velocity pin doesn't work? I know almost nothing about the PPMC boards.
[18:04:06] <Nick001-Shop> what lines (hal ? ) have velocity scaling for the spindle
[18:04:49] <andypugh> What is the spindle encoder scale set to?
[18:04:53] <skunkworks> that doesn't make sense.
[18:05:21] <skunkworks> the encoder velocity pin I think is pretty new in the ppmc boards
[18:05:30] <Nick001-Shop> where would that be located
[18:05:31] <andypugh> ppmc.0.encoder.03.scale?
[18:06:15] <Nick001-Shop> in hal?
[18:06:50] <andypugh> If one rotation of the spindle equals a change of exactly 1 in ppmc.0.encoder.03.position then the scale should be right though.
[18:07:20] <Nick001-Shop> I don't see it in pastebin or I'm sleepy http://pastebin.com/tnXGdWkf
[18:08:18] <Nick001-Shop> I'll go do halmeter and be back
[18:09:01] <andypugh> You still haven't answered the question about whether one turn of the spindle is exactly a change of 1 in spindle-revs. But it has only been three days that I have been asking for.
[18:13:40] <Nick001-Shop> ppmc.0.encoder.03.position 6 digit# 122320 gos to 134052 approx 1/2 turn
[18:14:06] <Nick001-Shop> I'll go do spindle-revs
[18:15:38] <skunkworks> what is the lines on that encoder?
[18:15:49] <Jymmm> ------------------------
[18:16:03] <skunkworks> around 2500?
[18:16:03] <Jymmm> and ||||||||||||||||||||||||||||
[18:16:13] <skunkworks> heh
[18:17:02] <skunkworks> Jymmm: bought at refirbished asus k55a from newegg. Looks to be a pretty nice machine. i5, 3rd gen for $359
[18:17:19] <skunkworks> grade b - so some scratches.
[18:17:49] <skunkworks> (and windows 7...)
[18:17:54] <Jymmm> skunkworks: Nice!!!
[18:18:39] <Jymmm> skunkworks: Did I show you my new (used) machine?
[18:18:46] <skunkworks> no?
[18:20:57] <Nick001-Shop> resolver with pico encoder adaptor 4096 output?
[18:21:31] <Jymmm> skunkworks: $750 off craigslist, added 4GB+16GB=20GB Ram for $120, plus $15 for a video adapter to connect to my 24" LCD @ 2048x1152 - http://everymac.com/systems/apple/imac/specs/imac-core-i5-2.5-21-inch-aluminum-mid-2011-thunderbolt-specs.html
[18:22:24] <Nick001-Shop> hal config - motion - spindle-revs start 157800- approx 1 rev 161980 if that helps
[18:22:57] <Jymmm> skunkworks: In PERFECT condition, including original box/pkg
[18:24:06] <skunkworks> nice!
[18:24:12] <skunkworks> http://www.newegg.com/Product/Product.aspx?Item=N82E16834230920
[18:25:26] <Jymmm> skunkworks: big kybd
[18:25:34] <andypugh> And you say that threading works properly? Then I don't understand LinuxCNC and should stop.
[18:26:31] <andypugh> setp ppmc.0.encoder.03.scale 4096
[18:28:18] <Nick001-Shop> the 3 lines you gave me enabled g76 to work - then the feed per rev went crazy total z distance checks out and rest of distances are ok. Just feed per rev in g95.
[18:28:56] <Nick001-Shop> ill try that line
[18:29:13] <andypugh> I suspect that G76 was just running at full speed.
[18:37:56] <Nick001-Shop> g76 wouldn't run at all - come to initial point and stayed there untill I put those 3 lines in.
[18:38:25] <Nick001-Shop> setp ppmc.0.encoder.03.scale 4096 put in hal and no difference
[19:06:07] <Nick001-Shop> too many screens open - putting changes into files on a stick - put setp ppmc.0.encoder.03.scale 4096 and now the feeds are behaving nicely
[19:07:15] <Nick001-Shop> andy - thanks for the help
[19:08:52] <jdh> heh... I just replaced a 10b2 coax to the garage with a cat5e so I can get rid of my PCI wifi card. I forgot I ran teh coax years ago
[19:09:44] <Nick001-Shop> I'll actually cut some material tomorrow and stop annoying people - dinner time
[19:12:18] <andypugh> Bon Appetit
[19:12:39] <andypugh> (If you had answered the spindle-revs question when I first asked it we could have saved days)
[19:18:16] <Nick001-Shop> I had to learn how to find pins and stuff to get an answer for you - thanks again
[21:50:05] <spack> so how would one go about moving a 4000 mill about 500 miles?
[21:50:19] <spack> let's say i rented a flatbed... how do i ever get it on/off of it? :S
[21:50:21] <Tom_itx> call an equipment mover
[21:50:29] <spack> i'm assuming that will cost too much
[21:50:41] <Tom_itx> Belger Cartage service is one
[21:51:00] <Tom_itx> likely rather costly yes
[21:51:33] <Tom_itx> rent a crane to get it off
[21:52:02] <Tom_itx> companies rent such things
[21:52:03] <cradek> spack: use uship.com to find a semi driver with an appropriate trailer. rent or borrow a forklift at both ends.
[21:52:23] <spack> hmm
[21:52:28] <Tom_itx> might be too heavy or cumbersome for a forklift
[21:52:34] <cradek> you'll be done for < $1k
[21:52:41] <Tom_itx> might just tip the forklift
[21:52:42] <spack> depends if it's palletized or not
[21:52:43] <cradek> nah only 2 tons, no problem
[21:52:47] <Tom_itx> k
[21:52:52] <spack> there are some giant forklifts out there
[21:53:04] <cradek> sure you have to get appropriate forklifts :-)
[21:53:08] <spack> :)
[21:53:19] <Tom_itx> there are moving rollers as well to get it out the door
[21:53:47] <spack> i plan on egyptian-ing it
[21:53:50] <spack> with pipes
[21:54:00] <spack> but if i have a forklift, might as well use that
[21:54:06] <Tom_itx> that works just as well
[21:54:19] <Tom_itx> * nearly as well
[21:54:34] <spack> will finding a guy on uship be cheaper than renting a flatbed?
[21:54:37] <cradek> I think mine weighs about twice that and I didn't have any trouble renting a forklift
[21:55:14] <cradek> spack: renting a flatbed PLUS 1000 miles worth of fuel
[21:55:25] <spack> well i was including that
[21:55:26] <cradek> remember you drive both ways, he drives one way
[21:56:03] <spack> yeah, i guess it only cost $800 to have a car shipped coast to coast
[21:56:07] <spack> but he had like 5 other cars on there
[21:56:28] <spack> those tend to be a lot easier to get on and off too :)
[21:56:29] <cradek> a smart truck driver will load his truck appropriately and won't cross the country without carrying something useful
[21:56:33] <spack> weigh about the same...
[21:56:43] <cradek> on uship they bid for your business, so they are smart those ways
[21:56:53] <spack> i'll check it out
[21:57:19] <cradek> I'd do it again that way in a heartbeat (although mine was way too big to pull with my truck)
[21:57:38] <Tom_itx> maybe he can leave his flatbed so you're not paying him to stand around
[21:57:52] <cradek> 2T you can probably do with a regular truck, but I bet you'll pay $500+ for JUST the fuel
[21:58:04] <skunkworks> the driver slid the acroloc off the back of his flatbed.
[21:58:34] <Tom_itx> or borrow JT-Shop's frontloader and flatbed :D
[21:58:42] <skunkworks> dad was impressed - the guy unhooked the cable and dad was wondering... but slid off as slick as snot.
[21:59:13] <spack> looks like a forklift is $300-$400/day
[21:59:19] <spack> times 2
[21:59:40] <cradek> around here you usually rent them by the hour?
[22:00:00] <spack> hmm
[22:00:08] <spack> this site has them by day, week, and 4 week
[22:01:31] <spack> i'll check CL
[22:18:36] <nspielb> is pcw home here?
[22:20:15] <nspielb> does anyone know how to arrange the jumpers w4 ans w5 on the 7i43 for lcnc
[22:22:46] <cradek> http://www.linuxcnc.org/docs/html/man/man9/hm2_7i43.9.html
[22:25:23] <nspielb> im confused how to know whether it is 200k or 400k
[22:25:59] <cradek> 09:32 < pcw_home> 7I43-2 is 200K 7I43-4 is 400K
[22:26:07] <cradek> you asked that question earlier
[22:27:28] <nspielb> yeah and he said on the board it should say 200k or 400k and i cant find where it says it on the board
[22:32:37] <nspielb> they put yellow paint over the xlinx chips
[22:37:34] <KimK_3> nspielb: Yellow=4, if that means anything. Do they put red (=2) paint over some of them?
[22:38:02] <nspielb> nope. its actually a 2
[22:38:13] <nspielb> i googled the xlinx number and it said 200k in the datasheet
[22:38:20] <KimK_3> Ah, how did you figure it out?
[22:38:36] <KimK_3> So you got the paint off?
[22:38:44] <nspielb> a little bit yes
[22:38:47] <nspielb> the top line
[22:39:21] <KimK_3> Great, congrats!
[23:49:02] <nspiel> where can i find the .pin file for the 7i43
[23:53:02] <nspiel> does hooking a 7i43 up to a pc power supply for the 5volts supply kill it?
[23:56:55] <nspiel> what is the first parallel port set for output screen on pncconf signify?