#linuxcnc | Logs for 2013-08-14

[00:00:06] <Nick001-Shop> where is it in hal file?
[00:00:20] <andypugh> It isn't in the HAL file
[00:00:42] <andypugh> (well, actually, it should be, but that's not the quaestion I am asking)
[00:01:00] <Nick001-Shop> where then - cant seem to find it
[00:01:10] <andypugh> Halmeter
[00:03:18] <Nick001-Shop> have to pick this back up tomorrow - wife called me for dinner -
[00:03:45] <andypugh> Luck you, it's an hour past my bed-time
[00:04:22] <Nick001-Shop> it's 8 pm and I'm hungry -)
[00:04:31] <andypugh> These are very simple questons. Do the pins show the right values when the spindle is going round.
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[00:04:42] <andypugh> That is all I am asking you to determine.
[00:05:34] <Nick001-Shop> will do - in the morning
[00:05:51] <andypugh> Good night
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[02:01:48] <ni291187> is there an easy way to tell what stepconf file your using? I can't see, to find anything helpful in my ini file.
[02:03:01] <jdh> look in the config dir
[02:03:49] <jdh> it will be <config-name>.stepconf
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[02:09:33] <ni291187> there's no .stepconf that I can find in there
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[02:11:03] <jdh> locate .stepconf
[02:15:56] <ni291187> yeah. we've got 3 stepconf files. I'm not sure that any of them are the ones we actually need.
[02:16:54] <ni291187> was hoping to find a way to determine which one is used. lsof hasn't been much help
[02:17:37] <jdh> why would lsof help?
[02:19:31] <jdh> <config>.stepconf is an xml file that stepconf uses to retain the information you entered to generate the .ini and .hal files
[02:22:41] <ni291187> hrm, maybe I'm asking the wrong question. we recently upgraded the lead screws in our g0704 that were converting to ball screws. I'm trying to update the threads / in. using the step config tool isn't making a difference.
[02:23:19] <jdh> skip the stepconf and just edit the .ini file directly
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[02:25:04] <ni291187> what would I be looking for in there for steps per inch?
[02:25:47] <jdh> SCALE =
[02:26:32] <ni291187> axis 0 and axis1 are x and y respectively?
[02:26:37] <jdh> yes
[02:27:11] <ni291187> Ty.
[02:29:31] <pcw_home> crc-reveng sure saved me some guessing, neat program
[02:30:34] <ni291187> that worked beautifully. thanks. I was making it harder than I needed
[02:31:27] <jdh> what screws
[02:32:51] <ni291187> some Chinese ball screws from eBay
[02:33:42] <ni291187> we're converting the machine to cnc. found out after getting motors on it that the factory screws were bent
[02:34:21] <jdh> mine came without the bolts for backlash adjustment
[02:34:49] <jdh> but, I only used them long enough to make parts for the ballscrews
[02:34:58] <ni291187> bummer. pretty easy fix though.
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[02:35:32] <jdh> yeah. Other than that it was pretty good. Pre-3-bolt-head though
[02:36:19] <ni291187> we're a hacker space trying to make this work. seb_kuzm1nsky is a member and been helping us out.
[02:37:19] <jdh> cool.
[02:37:31] <jdh> we have about 8% of a hackerspace here.
[02:37:55] <jdh> a name, a logo, and 20-30 people of which 5 or 6 show up for meetings
[02:38:56] <ni291187> we're at our meeting now. 50+ members now. growing like crazy. where are you located?
[02:39:07] <jdh> wilmington.nc.us
[02:40:11] <ni291187> nice. never been over that direction.
[02:41:16] <jdh> great place, IMO.. but for a 25mile radius, 2/3 of it is water so it's hard to draw a lot of people.
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[03:31:35] <blossom> hi
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[04:17:13] <nspiel> does integrated parallel port always work for driving mesa i/o ports
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[04:18:42] <nspiel> on the motherboard
[04:26:51] <nspiel> how do you setup the parport
[04:26:59] <nspiel> where is loadrt at?
[04:36:58] <nspiel> is anyone there? PCW?
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[05:12:29] <nspiel> is anyone there?
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[06:51:49] <DJ9DJ> moin
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[08:33:43] <erasmo> hi all
[08:33:45] <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
[08:33:52] <erasmo> I have a problem with lcnc latency
[08:34:03] <erasmo> My motherboard i a Gigabyte Ga-p35-ds3r
[08:34:12] <erasmo> under ubuntu 10.04 in lcnc i have hudge latency
[08:34:19] <erasmo> but under ubuntu 8.04 latency is ok
[08:34:27] <erasmo> is there any tool for logging what kind of program/hardware causes latency issues?
[08:36:50] <erasmo> my cpu is Intel core2duo
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[08:53:49] <archivist> kengu, mesa card in pci slot
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[10:04:21] <kengu> archivist: as in I might as well just use the lpt-port
[10:05:13] <archivist> with the mesa cards you get hardware counting an better servo support and extra I/O
[10:05:38] <archivist> not the same as a parallel port
[10:07:08] <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
[10:08:14] <kengu> true
[10:14:29] <archivist> I have a 5 axis mill crammed into one parallel port, not ideal
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[10:21:41] <kengu> archivist: well.. that cnc is just a plasma so it is in my research pretty doable with parallel
[10:23:08] <archivist> depends, plasma seems to need some kind of active height control
[10:24:12] <kengu> I spent yesterday evening reading about THC, (torch height controller) etc
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[11:22:52] <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.
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[12:04:01] <kengu> maybe something like this to the plasma, http://www.cnc4you.co.uk/index.php?route=product/product&product_id=160
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[12:07:05] <archivist> some stepper drivers have the opto built in so less is needed on the breakout
[12:08:13] <archivist> I tend yo have just a driver chip like a ULN2002 or 74 series open collector driver
[12:10:31] <kengu> is it causing something bad if there are multiple optos in the chain
[12:11:13] <jdh> some are too slow for fast stepping
[12:11:20] <archivist> no except some are a bit slow or need current
[12:17:10] <kengu> well.. there are optos on the drivers
[12:19:04] -!- PetefromTn [PetefromTn!~quassel@66-168-88-82.dhcp.kgpt.tn.charter.com] has joined #linuxcnc
[12:19:31] <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
[12:20:33] <archivist> I have enough parts that compared to that item you showed it is £45 cheaper
[12:21:58] <kengu> that is pretty much true
[12:25:11] <Tom_itx> sure hope you didn't order anything UPS lately. one of their planes just crashed
[12:25:42] <kengu> nothing that should be there on the states at least
[12:25:47] <kengu> should or could
[12:26:11] <kengu> mainly those snailmail postal services from cn or hk
[12:28:54] <PetefromTn> mornin everyone..
[12:29:18] <Tom_itx> in birmingham
[12:30:33] <archivist> which birmingham
[12:32:08] <Tom_itx> baba
[12:32:14] <Tom_itx> bama*
[12:32:40] <PetefromTn> Apparently the pilot and copilot are dead..
[12:33:01] <archivist> second recent cargo crash, National Air Cargo in Afganistan in April
[12:33:30] <Tom_itx> what's with all these planes going down lately?
[12:34:25] <PetefromTn> Dunno really most of them almost fly themselves nowadays..
[12:34:31] <archivist> reduced costs
[12:34:57] <Tom_itx> heck, terrorists can fly better than that one pilot
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[12:35:23] <PetefromTn> That's pretty harsh
[12:35:55] <Tom_itx> consider the experience level
[12:36:04] <PetefromTn> Well guys I have got a dilemma here...
[12:36:32] <PetefromTn> I dunno if I have mentioned it on here before but my family and I wish to move back to Florida.
[12:36:57] <PetefromTn> In that direction we have just listed our home with a realtor locally.
[12:37:00] <archivist> and live above a sink hole ?
[12:37:01] <jdh> to join the rest of the canadians and new yorkers?
[12:37:16] <PetefromTn> Yes exactly, I am FROM new york...
[12:37:40] <jdh> where in .fl.us?
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[12:37:50] <PetefromTn> at least was born there and lived until I was five then we moved to florida
[12:38:05] <PetefromTn> Hopefully Port St. Lucie.
[12:38:12] <jdh> I go to FL 4-5 times a year.
[12:38:48] <PetefromTn> Anyways, the dilemma is this..
[12:38:55] <jdh> now that my kids are out of school, I could move there.
[12:39:23] <PetefromTn> As many of you know I have bought a Cincinatti Arrow 500 VMC and converted it to run on linuxCNC
[12:39:56] <PetefromTn> This machine is about 7k lbs and is slightly taller than your average garage door.
[12:40:22] <PetefromTn> So far it has been a great machine and while not completely finished it is working well now except for the toolchanger setup.
[12:40:48] <archivist> post it to me :)
[12:40:59] <Tom_itx> haha
[12:41:02] <PetefromTn> The problem here is that MOST homes in Florida we will be looking at wil be CBS construction with typical garage doors.
[12:41:05] <jdh> I'll give you $1250 for it and pick it up.
[12:41:40] <PetefromTn> Unlike our house here which has a 9' garage ceiling height
[12:41:53] <PetefromTn> and the ability to remove the overhead over the garage door.
[12:42:05] <jdh> look for a house with some space on the side, pour a pad, a mill room.
[12:42:24] <PetefromTn> In short it will most likely be difficult to find a home that has a large enough garage door opening.
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[12:42:53] <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,"
[12:43:05] <archivist> it can live on grass till the concrete is hard
[12:43:18] <jdh> when was the last time you were in PSL?
[12:43:55] <PetefromTn> If we can get a home with a shop that would be great but I am not sure what we will find.
[12:44:06] <PetefromTn> about a year and a half ago.
[12:45:08] <PetefromTn> I am CONSIDERING selling this machine here and then either buying another machine down there that will fit at my leisure
[12:45:19] <PetefromTn> because there is also the moving costs of the machine.
[12:45:23] <jdh> I'll give you $1250 for it and pick it up.
[12:45:52] <PetefromTn> LOL sorry man it was worth much more than that when it was NOT working...
[12:46:17] <archivist> 1251 dolla ?
[12:46:55] <PetefromTn> I am ALSO considering trying to TRADE it for a VERY nice heavy duty 4x8' CNC router table and some cash..
[12:48:38] <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.
[12:49:24] <jdh> how does one obtain work for a mill?
[12:49:33] <PetefromTn> The CNC router should be able to do the cabinet carcasses and drilling shelf pin holes etc.
[12:49:48] <PetefromTn> Good question LOL
[12:49:50] <archivist> I wish I knew how to get good paying work too
[12:50:28] <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..
[12:51:15] <Tom_itx> living around an industrial area helps. aircraft, farm equipment, auto, forestry etc
[12:51:24] <PetefromTn> Plus I can probably do some cool sign work and other stuff with the router.
[12:52:04] <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.
[12:52:26] <PetefromTn> I would RATHER keep the VMC because I know what it can do but I gotta be a realist too.
[12:52:37] <Tom_itx> what's it cost to haul and store it?
[12:52:45] <PetefromTn> Moving the machine to FLorida will probably be about $2k just by itself.
[12:52:48] <Tom_itx> opposed to taking a loss on it
[12:53:11] <PetefromTn> Might be able to do better than that if I shop around.
[12:53:27] <PetefromTn> I will NOT take a loss on the machine no matter what happens.
[12:54:13] <PetefromTn> It is worth a lot more than I have in it since I got it for such a low price initially.
[12:54:34] <PetefromTn> It does have a COMPLETLEY brand new electronics system in it now tho.
[12:54:43] <PetefromTn> All brand new Teco motors and drives
[12:54:50] <PetefromTn> A brand new computer and monitor.
[12:55:08] <Tom_itx> if the realtor sells, you might be under more pressure to make a move on it
[12:55:36] <PetefromTn> a complete Mesa card setup which is infinitely expandable.
[12:56:01] <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.
[12:56:20] <PetefromTn> with just a LITTLE bit more work this machine would be fully functional.
[12:56:41] <Tom_itx> so you're gonna have to sell it fairly quick or pay to move it somewhere, be it storage or Fl.
[12:56:56] <jdh> you could just give it to Connor
[12:57:02] <Tom_itx> or me :)
[12:57:09] <Tom_itx> i don't have room for it though
[12:57:12] <PetefromTn> It would need to be moved to florida assuming we can find a place to put it.
[12:57:26] <PetefromTn> Neither does Connor, he barely has room for his 0704 LOL
[12:57:37] <Tom_itx> and you don't wanna have to move it twice
[12:57:46] <PetefromTn> Definitely NOT...
[12:58:18] <PetefromTn> I would trade it for a NICE CNC flatbed router like a Mechmate or similar 4'x8' or larger and some cash...
[12:58:23] <jdh> buy a hefty trailer, put it on there, seal it up.
[12:58:40] <PetefromTn> Don't own a truck heavy enough to tow it with.
[12:58:56] <jdh> u-haul
[12:59:22] <PetefromTn> Naah it would probably be cheaper to just pay a rigger to move it down there.
[13:00:01] <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.
[13:00:15] <PetefromTn> The REAL problem is finding a home that will fit the damn thing...
[13:01:37] <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.
[13:02:25] <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.
[13:02:49] <PetefromTn> I gotta get my ass out into the shop and build a refridgerator cabinet now.
[13:02:50] <jdh> got a realtor down there?
[13:03:16] <PetefromTn> Naah we will most likely just travel down there and look with friends and family at homes for sale.
[13:03:52] <PetefromTn> Who knows maybe my house won't sell at all...
[13:04:36] <jdh> a friend that works at alcoa sent me an email saying they were hiring lots of people
[13:04:51] <PetefromTn> The Realtor we hired seemed to think we are priced pretty good and she said it should sell pretty quick.
[13:05:05] <PetefromTn> REALLY? I thought that place was dying...
[13:05:26] <PetefromTn> would never want to work there tho, that is a pretty dangerous place to work.
[13:05:31] <jdh> so did I. Evidently they will be making something other than can stock
[13:05:59] <jdh> I did some work there in the early 90s. Massive place.
[13:06:12] <PetefromTn> They sure make some damn fine aluminum tho.
[13:08:10] <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.
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[13:11:31] <PetefromTn> Apparenlty Google admits that email you send with Gmail is NOT private. Not that we ever really thought it was LOL
[13:12:13] <PetefromTn> Oh well talk later guys...Have a good day.
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[13:16:19] <Jymmm> Do SS welding rods come in 12" lengths? IF so, what is the largest diameter?
[13:21:13] <PetefromTn> http://www.lincolnelectric.com/en-us/support/welding-solutions/pages/stainless-steel-electrodes.aspx
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[13:57:44] <nspiel> is anyone there
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[13:58:46] <cradek> hi nspiel
[13:58:51] <cradek> there are always lots of people here
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[13:59:20] <nspiel> hi, looking for some guidance on setting up my 7i43 and making sure i set up my onboard parallel port correctly
[14:00:20] <cradek> cool, the custom on irc is to go ahead and explain/ask and then stick around, and if anyone can help they will
[14:01:07] <pcw_home> You should set the parallel port to EPP mode in the BIOS (v1.9 if you have an option)
[14:01:30] <nspiel> yep i already did that
[14:01:47] <pcw_home> 7I43 option jumpers both down
[14:01:59] <nspiel> @ tcradek the custom on irc?
[14:02:11] <nspiel> oh i forgot to set the jumpers
[14:02:18] <nspiel> hopefully it did not break the board
[14:02:56] <nspiel> it lit up when i plugged it into parallel port
[14:02:57] <pcw_home> (W4,W5 down)
[14:03:31] <pcw_home> also the 7I43 needs 5V power
[14:04:38] <pcw_home> It is possible to break 7I43s but nothing you do with jumpering will hurt
[14:05:15] <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
[14:06:01] <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)
[14:06:48] <nspiel> i just plugged the 7i43 with their cable to the parallel port on the computer. the 7i43 is not connected to anything
[14:06:50] <nspiel> and it lit up
[14:07:38] <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)
[14:09:18] <pcw_home> The parallel port pins will (sort of) power the 7I43, but to operate, the 7I43 needs 5V
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[14:10:03] <nspiel> oh ok. Gotcha. i have the 7i43-2 right?
[14:10:10] <nspiel> because it has p3 and p4?
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[14:20:59] <nspiel> @pcw which daughter boards should i select? 7i29?
[14:21:42] <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?
[14:21:59] <pcw_home> all 7I43s have P3 and P4
[14:22:00] <pcw_home> On the standard 4 axis servo configurations the servo interface in on P4
[14:22:01] <Tom_itx> for an I beam?
[14:22:02] <pcw_home> Yes, 7I29 should work
[14:22:20] <Jymmm> nspiel: You don't need to use '@', just saying their name is enough.
[14:22:31] <Gigs-> irtwitter
[14:22:51] <Tom_itx> Gigs-, google I beam trolley
[14:22:57] <nspiel> oh ok thanks
[14:23:00] <Gigs-> ok I'll take a look
[14:23:21] <Gigs-> Tom_itx: no not that, just a flange bearing
[14:23:22] <nspiel> but what is the selection on pncconf that is 7i43-4 and 7i43-2?
[14:24:35] <Gigs-> Tom_itx: like this guy swivels around https://d2t1xqejof9utc.cloudfront.net/screenshots/pics/0d69fad4f2bd0939c87f5580f0804536/medium.JPG
[14:24:36] <pcw_home> those are the 2 7I43 versions with different FPGA sizes (so pncconf can select the right firmware)
[14:24:42] <Tom_itx> Gigs-, like a garage door bearing?
[14:24:54] <Gigs-> Tom_itx: I want one that doesn't do that, that can support a horzontal load without swiveling
[14:25:04] <Gigs-> I'll check those
[14:25:17] <Tom_itx> not sure
[14:25:35] <Tom_itx> if that didn't swivel, the bearing load would be on the wrong axis it appears
[14:25:48] <Tom_itx> that's why they have pillow blocks
[14:26:15] <Gigs-> yeah that's why I think it has to be a tapered roller
[14:26:23] <Gigs-> because ball bearings don't like that direction loading
[14:26:34] <Tom_itx> http://www.vxb.com/page/bearings/PROD/Kit7369?gclid=COrBmp-S_bgCFZKk4Aodhn0AhA
[14:26:37] <Tom_itx> or such
[14:26:55] <Gigs-> that pillow swivels too
[14:27:10] <Tom_itx> it was the first pic i saw of a pillow block :D
[14:27:42] <Tom_itx> http://www.vxb.com/page/bearings/PROD/Kit7358
[14:27:47] <Tom_itx> does that one?
[14:29:01] <Gigs-> yeah
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[14:29:22] <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
[14:31:52] <nspiel> how do i know which fpga size i have? by the two p3 and p4 connectors? Are those the "fpga" connectors?
[14:32:22] <pcw_home> 7I43-2 is 200K 7I43-4 is 400K
[14:33:11] <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)
[14:33:15] <nspiel> how do i know which one I have?
[14:33:35] <pcw_home> look at the label?
[14:34:13] <Gigs-> hard core.. what are you fpga-ing?
[14:34:43] <nspiel> oh ok gotcha
[14:35:39] <nspiel> Also for the standard machine config I selected Scara. What other files do I need? Just the .c kinematics file?
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[14:37:01] <pcw_home> I know nothing about scara configs so maybe someone else can help with that
[14:38:06] <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
[14:38:17] <nspiel> is this what i enter as the parport location in pncconf
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[14:42:56] <pcw_home> 0x378 is the usually motherboard default so I would leave it at that
[14:48:46] <nspiel> is that the same as 378h?
[14:50:33] <pcw_home> yes 0x378 is a 'C' ism
[14:51:46] <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?
[14:53:01] <pcw_home> Not sure pncconf knows about scara configs
[15:02:02] <nspiel> its seems like it doesnt.. is there another way to run that config? or an easy way? or a traditional way?
[15:04:55] <archivist> Gigs-, car wheel hub, two bearings
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[15:07:28] <pcw_home> I would get the 7I43 working and configured before worrying about kinematics
[15:07:29] <pcw_home> You will very like need to edit the hal file (you can start with the pncconf generated one)
[15:07:31] <pcw_home> First steps are:
[15:07:32] <pcw_home> Get 5V power wired to 7I43 and 7I25s
[15:07:34] <pcw_home> connect encoders (do not connect motors or motor power)
[15:07:35] <pcw_home> Check encoder operation and direction
[15:14:34] <Gigs-> archivist yeah like that would work, still can't find one though!
[15:14:57] <archivist> one...scrap yard
[15:15:10] <Gigs-> oh, an actual car bearing would be way to big
[15:15:13] <Gigs-> too
[15:15:33] <nspiel> pcw will you be around tonight?
[15:15:57] <Gigs-> I just need a little 3/4 inch bore one
[15:16:05] <pcw_home> Probably
[15:17:49] <archivist> Gigs-, er small car the dimensions are about that, but probably two differing diameters, see also trailer spares and hubs
[15:20:31] <archivist> Gigs-, http://www.indespension.co.uk/Unbraked-Trailer-Hubs.html
[15:25:39] <Tom_itx> haha i didn't think of that
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[15:29:20] <archivist> we used a car hub from a front wheel drive to put a prop on a raft to steer the prop
[15:29:53] <nspiel> does anyone here know about scara config
[15:29:59] <Tom_itx> i just changed a set of those too
[15:30:54] <archivist> nspiel, in irc ask the real question not do we know about x
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[15:32:53] <nspiel> what is irc
[15:33:43] <archivist> you are speaking on it
[15:34:30] <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
[15:35:05] <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.
[15:35:40] <nspiel> \ok thank you. i am new to this
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[15:36:15] <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
[15:36:40] <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
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[15:40:30] <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?
[15:41:20] <Gigs-> hmm yeah it looks like some of them do
[15:44:53] <Gigs-> still an excellent lead, super cheap compared to some of the industrial taper bearings I've been looking at
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[15:48:57] <nspiel> how do you change configurations manually? write a custom config or hal file?
[15:50:10] <JT-Shop> I use Gedit
[15:50:20] <Tom_itx> ja
[15:50:44] <Tom_itx> JT-Shop, how's the jt-mart coming along?
[15:50:52] <archivist> Gigs-, yes a stepped shaft
[15:50:57] <JT-Shop> lol slow
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[15:51:35] <Tom_itx> any colored parts yet?
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[15:52:41] <JT-Shop> getting close, got some fresh chemicals in the other day
[15:52:57] <JT-Shop> just need to do some final tweaking on the system before I fire it up
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[15:54:06] <Tom_itx> i saw a 'backwards' can am the other day
[15:54:10] <Tom_itx> forget what brand it was
[15:54:20] <Tom_itx> single front wheel
[15:54:30] <JT-Shop> it's called a trike
[15:54:33] <JT-Shop> lol
[15:54:44] <Tom_itx> yeah but i don't know the mfg
[15:54:58] <JT-Shop> the one with the steering wheel?
[15:55:08] <Tom_itx> umm yeah i think it may have
[15:55:32] <Jymmm> golf cart??
[15:55:35] <JT-Shop> Stallion or something similar
[15:55:36] <Tom_itx> it was shrouded in so much plastic it was hard to see going down the road
[15:55:41] <JT-Shop> even has AC
[15:55:53] <JT-Shop> there is at least one around here
[15:55:55] <nspiel> what is gedit
[15:56:08] <Tom_itx> a linux text editor
[15:56:09] <JT-Shop> a text editor
[15:56:34] <Tom_itx> i put an icon on the screen for it
[15:56:41] <nspiel> so i will have to manually overwrite the config file with a text editor?
[15:56:52] <JT-Shop> at some point yes
[15:56:57] <Tom_itx> that's the way the big boys do it
[15:57:03] <JT-Shop> it's not like Mack
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[15:57:31] <Tom_itx> it's not that difficult either once you read what the parameters are for
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[15:58:57] <nspiel> whats the best way to learn the implementation and how it works
[15:59:10] <Jymmm> read?
[15:59:13] <JT-Shop> the manual and the man pages
[15:59:31] <JT-Shop> http://www.linuxcnc.org/docs/html/
[15:59:57] <JT-Shop> scroll to the bottom of that link for all the components
[16:00:04] <JT-Shop> http://www.linuxcnc.org/docs/html/config/ini_config.html
[16:00:22] <JT-Shop> and last but not least http://www.linuxcnc.org/docs/html/hal/basic_hal.html
[16:00:58] <Tom_itx> do those cover the kinematics?
[16:01:28] <nspiel> I already have the kinematics file
[16:01:59] <nspiel> I know the kinematic equations are correct because i rederived them and checked them but im not sure the implementation is
[16:02:09] <nspiel> the guy i got it from had a working scara though so i assume they are
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[16:03:07] <Tom_itx> just don't let it chase you around the room
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[16:06:11] <nspiel> huh?
[16:06:26] <Tom_itx> the arm
[16:06:32] <JT-Shop> Tom_itx: this one? http://www.motortrike.com/trikeThoroughbredStallion.aspx
[16:07:11] <Tom_itx> looks like it
[16:08:23] <nspiel> i havent been able to figure out if it has limit switches yet
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[16:16:05] <nspiel> there is also a premade scara configuration, how much will this have to be modified to my particular setup?
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[16:24:19] <cradek> nspiel: you will probably only know that once you dig in.
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[16:58:54] <nspiel> what are the scara simulation files for?
[17:02:23] <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
[17:03:22] <CaptHindsight> http://www.youtube.com/watch?v=kzDL9Qx883I
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[17:03:38] <IchGuckLive> hi all B)
[17:03:42] <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.
[17:04:14] <IchGuckLive> i agree with that B)
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[17:09:46] <jdh> anyone have a drawing for a BK10 bearing block?
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[17:10:50] <IchGuckLive> http://i.ebayimg.com/t/Ballscrew-end-supports-BK10-BF10-bearing-blocks-2-pcs-/00/s/MTAwMlg2MTc=/z/45EAAOxye3BRuzMt/$T2eC16FHJHIFFhoLIbPGBRuzMs1Pbg~~60_14.JPG
[17:11:02] <IchGuckLive> here is jour drawing
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[17:13:15] <CaptHindsight> 39px × 64px heh
[17:15:04] <ReadError> lol
[17:15:43] <IchGuckLive> oh
[17:16:14] <IchGuckLive> http://www.ebay.de/itm/Ballscrew-end-supports-BK10-BF10-bearing-blocks-2-pcs-/250474738034
[17:16:20] <IchGuckLive> BETTER to go via link
[17:17:01] <IchGuckLive> O.O
[17:17:13] <jdh> I was hoping for a real drawing. Or at least dimensions
[17:17:33] <IchGuckLive> dimantions are on the list
[17:17:35] <jdh> but, that's the guy I got teh screw/nut from though
[17:17:45] <IchGuckLive> what file do you need i got part access
[17:17:53] <jdh> I see no dimensions
[17:18:15] <jdh> bearing sizes mainly
[17:18:19] <IchGuckLive> is it a BK 10
[17:18:53] <jdh> I see no attachment.
[17:19:28] <jdh> I thoguht I was getting a BK10 with my ballscrew, but the order was a littel confusing.
[17:20:35] <IchGuckLive> ok shoudt i upload the big image for you
[17:20:45] <jdh> I'll look for some more ebay pics
[17:21:13] <IchGuckLive> all the messurments are on the image
[17:22:35] <jdh> got one. Thanks.
[17:23:10] <IchGuckLive> NP
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[17:29:31] <jdh> checked the 'invoice', it does say with BK10 and locknut.
[17:29:58] <IchGuckLive> so giver him a hint
[17:30:49] <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.
[17:31:11] <IchGuckLive> bad
[17:31:42] <jdh> I had been thinking about just pulling the bearings out of it anyway since it is bulky and not quite the right shape.
[17:32:30] <CaptHindsight> I had similar issues with ballscrews and bearing blocks from keling/automation tech. I had to stop in to be sure everything matched
[17:32:33] <IchGuckLive> why then not going for a new one homemade with all the good stuff and messurments
[17:32:42] <jdh> all the ebay/ali ballscrews are 12/16/20/25mm. Are there any standard like smaller sizes?
[17:32:59] <nspiel> captainhindsight- thats my goal. make my robot work like those
[17:33:05] <nspiel> ive seen those videos so i know its possible
[17:33:09] <CaptHindsight> some of the bearings also had detents :)
[17:33:14] <jdh> heh
[17:33:15] <IchGuckLive> 12 is lowest as it bearly can hold the 5mm tread
[17:33:48] <jdh> there are 8mm ones out there, but pricey.
[17:34:35] <jdh> the bearings that came with the other screw are labeled NSK/Japan
[17:36:11] <IchGuckLive> they all come from there even the FAG
[17:36:28] <IchGuckLive> only the fag are well inside the given parametrics
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[17:37:45] <jdh> http://tinyurl.com/qc872cd
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[17:38:04] <jdh> an 8mm one that costs 4x as much as the 12mm
[17:43:15] <CaptHindsight> it costs more to find children with smaller fingers to perform the assembly, they grow up so fast
[17:43:42] <jdh> breed more
[17:44:11] <jdh> I don't see bearing dimensions on the picture
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[17:59:23] <Optic> just reading about emc2 for the first time in a while
[17:59:31] <Optic> still seems very parallel portish :)
[17:59:41] <archivist> not at all
[18:00:03] <jdh> linuxcnc doesn't really care what the hardware interface is
[18:00:20] <Optic> oh I was just looking at the supported hardware page in the linuxcnc wiki
[18:00:21] <archivist> it hates usb !
[18:00:22] <IchGuckLive> Optic: hi we deported to linuxcnc
[18:00:47] <IchGuckLive> usb is good on buttons nothing els
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[18:01:47] <Optic> but the best way to DIY is still to use an old motherboard and shove in some PCI parallel port cards?
[18:02:01] <jdh> cheapest, not best.
[18:02:34] <jdh> if you are going to add a PCI card, add a Mesa 5i25 instead of a p-port card.
[18:02:43] * Optic googles
[18:02:58] <IchGuckLive> yeah that gives you alot of speed
[18:03:00] <Optic> oh cool
[18:03:05] <Optic> and lots of i/os
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[18:03:19] <Optic> linuxcnc likes taht one?
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[18:04:18] <jdh> yes, among others.
[18:04:30] <Optic> cool :) those looks like nice cards, and very fair prices
[18:05:12] <jdh> but, for non-demanding applications, linuxcnc will work as well with an existing p-port
[18:05:53] <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 :)
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[18:06:20] <jdh> you could use a dual-port PCI card
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[18:06:32] <IchGuckLive> Optic: a second parport is best at 10USD
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[18:06:35] <Optic> yeah, but light you said you might as well get the 5i25
[18:06:38] <Optic> wow
[18:06:40] <jdh> mesa cards are much sexier
[18:06:40] <Optic> like you said
[18:06:45] <Optic> sorry, my fingers aren't working well today :)
[18:06:55] <IchGuckLive> Optic: are you in europ ?
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[18:07:14] <Optic> nope, Canada
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[18:07:37] <IchGuckLive> oh the far zone as the US dont like canadians as well as mexicans
[18:07:48] <CaptHindsight> IchGuckLive: is there a list of know good parallel port cards for <$20?
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[18:08:05] <IchGuckLive> on the wiki there is a chilist
[18:08:11] <IchGuckLive> chip list
[18:08:38] <IchGuckLive> >)
[18:09:23] <Optic> cool. If I redo this project, the 5i25+7i76 looks awesome
[18:10:09] <IchGuckLive> Optic: its the first choice
[18:10:23] <IchGuckLive> for a mill
[18:10:34] <Optic> this is a laser engraver
[18:11:00] <IchGuckLive> laser engraver on a parport is to slow
[18:11:08] * Optic nods :)
[18:11:18] <IchGuckLive> the mesa will increase at least 100times
[18:11:57] <IchGuckLive> ok im getting off by
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[18:12:09] <Optic> right now we have a very homebrew solution but I think new stepper drives and a new interface might make a huge difference
[18:12:57] <Optic> we have a paralell port driving a custom PIC + amplifier board, single-stepping the motors
[18:13:37] <Optic> have you tried those polou drives that are so popular with the 3d printing crowd?
[18:14:02] <skunkworks> Optic, are you rasterizing?
[18:14:07] <archivist> if you want some proper speed, servos
[18:14:11] <Optic> only occasionally
[18:14:17] <skunkworks> how are you doing that?
[18:14:56] <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?
[18:14:59] <NickParker> the small black one.
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[18:15:55] <Optic> skunkworks: good question, let me review :)
[18:16:07] <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.)
[18:16:16] <cradek> (the bigger black slot)
[18:17:45] <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
[18:18:01] <NickParker> anyway thanks for confirmation, time to order
[18:20:56] <Optic> skunkworks: it uses the halstreamer stuff I think
[18:21:19] <Optic> graster
[18:22:03] <skunkworks> ok. you might want to look at ben stuff http://www.buildlog.net/forum/viewtopic.php?f=16&t=557&start=110
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[18:23:00] <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)
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[18:28:32] <Optic> nod
[18:30:10] <Optic> we're also always fighting with CAM software, hehee
[18:30:22] <Optic> I might give cambam a try
[18:31:27] <JT-Shop> yuck Touchy just locked up
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[18:34:32] <PetefromTn> I have been playing with CamBam too. Not done a lot with it but it looks promising.
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[18:44:02] <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.
[18:44:19] <NickParker> also, if i go with a 6i25 can i use the motherboard parallel port as well for auxillary functions?
[18:45:15] <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.
[18:45:22] <cradek> NickParker: 20000-25000 is generally fine for software stepping
[18:45:41] <cradek> yes you can use any combination of IO hardware
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[18:46:36] <NickParker> cool thanks.
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[19:24:15] <nspiel> is pcw here?
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[20:01:51] <Aero-Tec> can one set up a home switch mid lathe bed and run Gcode right through the home switch?
[20:03:01] <Aero-Tec> like can the home switch be totally ignored when running Gcode?
[20:03:07] <cradek> yes -- BUT a home switch should stay triggered all the way to one end of travel
[20:03:31] <cradek> yes it is totally ignored while not homing
[20:03:47] <cradek> but if it trips in the middle of the table it better stay tripped all the way to one end
[20:04:21] <cradek> (that's why they're usually at one end)
[20:04:39] <Aero-Tec> why if it is ignored when not homing?
[20:04:53] <cradek> why what?
[20:05:18] <Aero-Tec> why does it need to stay triggered all the way to one end?
[20:05:39] <cradek> because otherwise you don't know which way to move to find it in order to home
[20:06:07] <cradek> so if you start on one side it'll work, on the other side it'll stupidly smash into a limit
[20:06:32] <cradek> if it stays triggered homing will always work right, no matter where you start
[20:06:34] <cradek> brb
[20:07:39] <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
[20:08:12] <Aero-Tec> ok
[20:08:26] <Aero-Tec> I maybe able to work with that
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[20:09:32] <Aero-Tec> would it be hard to auto home just one axis?
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[20:12:50] <JT-Shop> hmm, Touchy doesn't seem to "know" about M61
[20:13:53] <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
[20:14:00] <cradek> neither does the gcode quickref
[20:14:40] <cradek> that makes no sense, so I don't believe you
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[20:20:06] <JT-Shop> it's like a G49 is issued at the start of a program
[20:20:25] <JT-Shop> I can do a G43 H1 and the DRO reads correctly
[20:22:34] <cradek> what version?
[20:22:54] <JT-Shop> and T6 is not on the quick reference either opps
[20:23:26] <cradek> T and M6 are both on there
[20:23:29] <JT-Shop> 2.5
[20:24:02] <JT-Shop> got my T and M mixed up
[20:24:24] <cradek> ?
[20:24:46] <JT-Shop> I searched the page for T6 instead of M6
[20:27:02] <JT-Shop> this is the file I'm running very basic http://pastebin.com/Ett5udE6
[20:27:48] <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?
[20:27:52] <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
[20:27:54] <cradek> that program wouldn't do anything would it?
[20:28:17] <JT-Shop> it starts the spindle goes to the end then comes back
[20:28:25] <JT-Shop> I use it to siize parts
[20:28:29] <cradek> but it's only a sub definition
[20:28:43] <JT-Shop> ngcgui
[20:29:00] <cradek> ok, I now know I don't know the answer to your question
[20:29:40] <cradek> I don't know how ngcgui works at all :-/
[20:29:53] <cradek> I did add touchy support for M61
[20:30:00] <cradek> M61 Q
[20:30:57] <JT-Shop> hmm when I enter M61 the Q doesn't show up
[20:31:13] <JT-Shop> the sub would be the same as a regular sub really
[20:31:15] <cradek> I just added it
[20:31:40] <cradek> it didn't know about M61 so it just assumes there are no arguments
[20:31:59] <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?
[20:33:44] <JT-Shop> cradek: thanks
[20:34:21] <JT-Shop> nspiel: best to ask on the forum the author of pncconf hangs out there
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[20:46:48] <JT-Shop> I found the problem, the std ngcgui preamble does do a G49
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[20:51:56] <cradek> aha
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[20:52:54] <jthornton> sure had me going for a bit
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[21:03:01] <DJ9DJ> gn8
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[21:20:05] <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?
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[22:15:10] <Nick001-Shop> andypugh - you around?
[22:17:52] <andypugh> Sort-of
[22:19:38] <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?
[22:20:43] <Nick001-Shop> feed rates a screwed up. 0.002 feed per rev at 400 rpm flies
[22:20:52] <Nick001-Shop> a/are
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[22:47:33] <andypugh> Nick001-Shop: SOunds like a problem with the velocity scaling.
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[22:48:49] <andypugh> But perhaps the velocity pin doesn't work? I know almost nothing about the PPMC boards.
[22:49:30] <Nick001-Shop> what lines (hal ? ) have velocity scaling for the spindle
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[22:50:13] <andypugh> What is the spindle encoder scale set to?
[22:50:17] <skunkworks> that doesn't make sense.
[22:50:45] <skunkworks> the encoder velocity pin I think is pretty new in the ppmc boards
[22:50:54] <Nick001-Shop> where would that be located
[22:50:55] <andypugh> ppmc.0.encoder.03.scale?
[22:51:39] <Nick001-Shop> in hal?
[22:52:15] <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.
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[22:52:44] <Nick001-Shop> I don't see it in pastebin or I'm sleepy http://pastebin.com/tnXGdWkf
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[22:53:43] <Nick001-Shop> I'll go do halmeter and be back
[22:54:25] <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.
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[22:59:04] <Nick001-Shop> ppmc.0.encoder.03.position 6 digit# 122320 gos to 134052 approx 1/2 turn
[22:59:30] <Nick001-Shop> I'll go do spindle-revs
[23:01:02] <skunkworks> what is the lines on that encoder?
[23:01:13] <Jymmm> ------------------------
[23:01:27] <skunkworks> around 2500?
[23:01:27] <Jymmm> and ||||||||||||||||||||||||||||
[23:01:37] <skunkworks> heh
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[23:02:26] <skunkworks> Jymmm: bought at refirbished asus k55a from newegg. Looks to be a pretty nice machine. i5, 3rd gen for $359
[23:02:43] <skunkworks> grade b - so some scratches.
[23:03:14] <skunkworks> (and windows 7...)
[23:03:18] <Jymmm> skunkworks: Nice!!!
[23:04:03] <Jymmm> skunkworks: Did I show you my new (used) machine?
[23:04:10] <skunkworks> no?
[23:06:21] <Nick001-Shop> resolver with pico encoder adaptor 4096 output?
[23:06:55] <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
[23:07:49] <Nick001-Shop> hal config - motion - spindle-revs start 157800- approx 1 rev 161980 if that helps
[23:08:22] <Jymmm> skunkworks: In PERFECT condition, including original box/pkg
[23:09:30] <skunkworks> nice!
[23:09:36] <skunkworks> http://www.newegg.com/Product/Product.aspx?Item=N82E16834230920
[23:10:50] <Jymmm> skunkworks: big kybd
[23:10:58] <andypugh> And you say that threading works properly? Then I don't understand LinuxCNC and should stop.
[23:11:56] <andypugh> setp ppmc.0.encoder.03.scale 4096
[23:13:42] <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.
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[23:14:21] <Nick001-Shop> ill try that line
[23:14:37] <andypugh> I suspect that G76 was just running at full speed.
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[23:23:21] <Nick001-Shop> g76 wouldn't run at all - come to initial point and stayed there untill I put those 3 lines in.
[23:23:49] <Nick001-Shop> setp ppmc.0.encoder.03.scale 4096 put in hal and no difference
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[23:51:31] <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
[23:52:39] <Nick001-Shop> andy - thanks for the help
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[23:54:16] <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
[23:55:08] <Nick001-Shop> I'll actually cut some material tomorrow and stop annoying people - dinner time
[23:57:42] <andypugh> Bon Appetit
[23:58:03] <andypugh> (If you had answered the spindle-revs question when I first asked it we could have saved days)