#linuxcnc | Logs for 2014-07-18

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[02:42:19] <XXCoder> ssi: nice to own 3d printer eh
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[02:45:44] <jymmm> Everyone has a glue gun.
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[05:48:24] <ssi> they're handy occasionally
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[06:45:24] <beybozkurt> hi
[06:47:22] <beybozkurt> can i help you
[06:48:57] <beybozkurt> can you help me
[06:49:53] <MrSunshine> just state your question and wait for answers =)
[06:50:20] <beybozkurt> I try to make hexapod machine in this video
[06:50:32] <beybozkurt> http://www.youtube.com/watch?v=G_UmhUjZhNo
[06:50:43] <beybozkurt> but I don't know there mesa card and he used two card why
[06:52:07] <archivist> because of how many servos he is running
[06:52:18] <beybozkurt> 6
[06:52:44] <beybozkurt> 6 servos+1 spindle
[06:53:09] <archivist> never understood the allure of a hexapod because of that
[06:54:20] <beybozkurt> it is my collage project
[06:54:44] <beybozkurt> card name is 7i43
[06:55:02] <beybozkurt> how do ı connect two card
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[07:06:34] <archivist> the config files are on his site http://www.pkm.org.ua/
[07:07:22] <beybozkurt> I saw it .hal files and ini files
[07:07:53] <beybozkurt> but I don't know stepconfig and other config
[07:09:56] <beybozkurt> can you help me remote connection
[07:14:43] <archivist> that is a servo system not stepper, no stepconfig
[07:16:03] <beybozkurt> how do i configration
[07:16:13] <archivist> even if you are building a stepper system you will have to hand edit files stepconf cannot deal with your system
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[07:17:43] <beybozkurt> so what will i do
[07:17:59] <beybozkurt> where am i start
[07:19:06] <beybozkurt> how do i use that file :/
[07:20:25] <archivist> very few build hexapods, you have some learning
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[07:22:28] <beybozkurt> I see :/
[07:24:53] <beybozkurt> well, what did it use two card
[07:25:53] <beybozkurt> I guess mesa 7i43
[07:25:53] <archivist> we answered that already it is simple maths
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[07:26:52] <beybozkurt> I did not understand the connection of the two cards
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[07:27:48] <ssi> just need two EPP ports
[07:28:00] <ssi> or use something different, like a 5i25 with two 7i77 servo daughterboards
[07:28:03] <Deejay> moin
[07:28:04] <ssi> that'll give you 12 servo interfaces
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[07:33:03] <beybozkurt> how do ı connect a 5i25 with two 7i77 servo daughterboards
[07:33:16] <beybozkurt> for 6 axis
[07:33:27] <ssi> one 7i77 will do 6 axes
[07:33:37] <ssi> but, you connect them with a cable :P
[07:33:37] <beybozkurt> wooww really
[07:33:42] <ssi> it could hardly be more straightforward
[07:34:59] <beybozkurt> ssi thank you for answers. I'm turkish may english is not good
[07:35:11] <ssi> http://www.mesanet.com/pdf/parallel/7i77man.pdf
[07:35:27] <beybozkurt> please can you give mail adress
[07:35:27] <ssi> if you run six axes on it, I'm not sure if you can use the field IO to run a spindle or not
[07:36:00] <archivist> and you need enough pins for limits etc
[07:36:17] <ssi> 7i77 field io should be more than enough
[07:36:31] <ssi> my only question is whether you can use field io to run an analog spindle drive
[07:37:11] <beybozkurt> wait please
[07:37:41] <ssi> I'm almost certain you can do a pwm spindle command with field IO, but I don't think you could do proper analog
[07:38:10] <beybozkurt> http://www.dmm-tech.com/Dyn3.html my drive
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[07:38:31] <ssi> is this the drive for your spindle? or for the axes
[07:39:00] <beybozkurt> all of them
[07:40:31] <ssi> yeah you can run those fine with a 7i77
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[07:41:01] <beybozkurt> really
[07:41:15] <ssi> but if you need to run seven of them, you may need either two 7i77s or a smartserial addon board of some kind
[07:42:13] <beybozkurt> I don't understand. what is the smartserial addon board
[07:42:32] <ssi> do you understand how servo drive commands work?
[07:42:40] <ssi> +/-10V analog?
[07:42:54] <beybozkurt> I don't know :/
[07:43:39] <ssi> well the 7i77 only has six analog command outputs
[07:43:45] <ssi> which is fine to run your axes
[07:43:48] <beybozkurt> I want to make theese machine http://www.youtube.com/watch?v=G_UmhUjZhNo
[07:43:53] <ssi> yeah I saw it
[07:44:16] <beybozkurt> but ı have not about linuxcnc
[07:45:05] <ssi> start reading up on servo systems and control systems
[07:45:14] <ssi> sounds like you have a lot of learning to do
[07:46:28] <beybozkurt> I know little servo and control system. but ı didn't chooise cards and driver :/
[07:48:55] <Einar1> The hexapod will need a lot of steel to make it stiff enough! And use a lot of expensive components to avoid backlash. So what is the benefit?
[07:49:46] <beybozkurt> this is my university project :/
[07:50:10] <archivist> it is hard to implement so makes learners work harder
[07:51:40] <Einar1> It's also expensive, which I thought uni projects should not be. If you have to take a side job to do it, that will not benefit learning. Or does uni pay the parts?
[07:52:45] <beybozkurt> money is not important. Because I have a sponsor
[07:52:59] <Einar1> Other than that, I understand you Archivist. Designing a hexapod they cannot just sit on their bum drinking beer!
[07:53:02] <beybozkurt> just am ı do
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[07:53:36] <archivist> he has the kins to write :)
[07:54:03] <beybozkurt> hexapod were designed
[07:54:25] <Einar1> Ooopps! Well I can do 2+2 pretty well, but hexapod kins .....
[07:55:42] <archivist> and as it is a uni project we must not spoon feed too much
[07:56:36] <beybozkurt> I must connect drives and cards :(
[07:56:43] <beybozkurt> but i can't
[07:57:08] <archivist> read manuals, decide, connect
[07:57:26] <beybozkurt> okay. I understand you. Can't be help me. No problem. Thank you everything :(
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[07:58:42] <archivist> there is no problem asking questions just dont expect the exact answer done for your setup
[08:00:09] <ssi> and honestly the drives and cards is the easiest part of this project by a long shot
[08:02:25] <beybozkurt> I couldn't do, I can't do , I won't do :(( and my English is terrible :(
[08:03:26] <archivist> are you intending to fail
[08:04:13] <beybozkurt> I don't know :(
[08:04:30] <beybozkurt> but I don't want to fail
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[08:11:15] <Einar1> ssi: the drives and cards may not be the easiest part if he's studying mathematics. OTOH hexapod kins will probably be nontrivial if he's studying automation.
[08:11:40] <Einar1> So, beybozkurt, what are you studying?
[08:11:57] <beybozkurt> computer science
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[08:14:12] <Einar1> Then I would not find any problem helping with connecting dives and cards down to detail. Another thing is that I cant. I don't know the mentioned hardware.
[08:15:02] <Einar1> What I'm saying is I don't think that would be serving a student a "Lego kit".
[08:15:47] <archivist> with all the data available, this is close to lego :)
[08:16:11] <archivist> if he uses linuxcnc
[08:16:52] <Einar1> OK, like Lego we I was a kid and you had to design your own. Have you seen Lego today? Even with build instructions!
[08:18:23] <Einar1> beybozkurt: Another thing: Your English is fine. As good as many of us here that does not have it as our native language.
[08:18:41] <beybozkurt> if I bothered you. I'm sorry about that :(
[08:20:20] <Einar1> I've been there too. Quite recently. And got lots of helpful advice even if some of my questions must have seemed quite basic for those that did this for a long time.
[08:20:32] <ssi> you're fine
[08:20:39] <ssi> the 7i77 would be a good choice for the drives you have
[08:20:51] <Einar1> Nobody told me I bothered them, even if they spent time helping me,
[08:21:01] <ssi> there's a kit... comes with a 5i25 or 6i25, which is the host card
[08:21:09] <ssi> the difference is 5i25 is pci, and 6i25 is pcie
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[08:21:24] <ssi> and comes with a cable, it's just a straight through DB25 cable, like a parallel cable
[08:21:44] <ssi> interfacing with the drives should be straightforward, just follow both your drive's manual and the 7i77 manual
[08:21:57] <ssi> configuring linuxcnc will be more challenging... there's a lot to learn
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[08:25:37] <Einar1> I believie in our universities something like this would be set up as a team of students. Some in computer science, some from mathematics, some from automation etc.
[08:26:02] <Einar1> That is how it is done in actual life (industry).
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[08:26:16] <ssi> haha if only :P
[08:27:31] <ssi> I get to be the CS guy, the math guy, the kinematics guy, the EE guy, the cabling guy, the mechE guy, the automation guy, the control theory guy, the machinist guy, AND the monkey that pushes the button
[08:28:35] <archivist> I get the be the guy who did the work no pay
[08:28:42] <Tom_itx> ssi, no pointing fingers there :D
[08:28:46] <ssi> oh yeah I'm that guy too
[08:28:58] <ssi> the one doing all this for no money in the hopes that one day it'll be useful
[08:29:18] <Einar1> I'm considering buying a set of Mesa boards. Considering it seems older PC's have better real time performance, would not PCI be better than PCIE?
[08:29:31] <archivist> Im fed up with lack of sensible money
[08:30:02] <ssi> Einar1: I tend to buy off-lease dell optiplex low profile machines and put PCI 5i25s in them
[08:30:39] <ssi> does this link work?
[08:30:39] <ssi> https://www.facebook.com/photo.php?v=10100430665435522&l=8584956244387437248
[08:30:46] <ssi> I got the lid built to the laser table :D
[08:31:43] <Einar1> It does for me.
[08:31:46] <ssi> archivist: you should go on strike against the management
[08:31:48] <ssi> Einar1: sweet :D
[08:32:05] <archivist> ssi erm that is me
[08:32:12] <ssi> :)
[08:32:46] <Einar1> Haha! You have your board meetings in front of the mirror?
[08:33:06] <archivist> getting customers to cough up is my problem
[08:33:21] <ssi> yeah that's a tough one
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[08:34:07] <ssi> I am gonna have to buy several hundred dollars worth of plexiglass to finish this enclosure :/
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[08:40:00] <Einar1> This looks like a nice vehicle for developing different kinds of kinematics? http://www.youtube.com/watch?v=wkk4zv96Dvo
[08:41:54] <ssi> could be
[08:42:04] <ssi> except it's "PROTECTED BY PATENTS AND COPYRIGHTS"
[08:42:15] <ssi> glad someone had the foresight to patent the concept of a linear actuator :P
[08:43:21] <ssi> I have a constrained delta robot that I built, but I never finished getting kinematics running for it
[08:43:24] <ssi> one of these days I'll get back to it
[08:43:57] <ssi> similar to the configuration they show at 3:15
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[09:02:56] <SpeedEvil> ssi: much cheaper alternative.
[09:03:12] <SpeedEvil> Turn up the ac, use sheets of ice
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[10:52:54] <marmite> http://hackoteket.se/wp-content/uploads/2014/07/IMG_28361.jpg muhaha
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[11:14:54] <Vq> Interesting choice in building material.
[11:15:33] <marmite> i allways use vinyl records as beta material :)
[11:15:51] <marmite> i get 50 records for 5 usd :P
[11:16:01] <marmite> got
[11:16:15] <marmite> its really hard and easy to work with ! perfect for smaler things:)
[11:19:42] <Vq> Good point, I imagine they bend nicely under heat as well.
[11:19:51] <marmite> https://dl.dropboxusercontent.com/u/15996745/IMG_2395.JPG Vq
[11:19:56] <marmite> ^^
[11:20:11] <marmite> yes and suppresingly strong during vibration aswell
[11:20:16] <marmite> so you can do really delicate work
[11:20:39] <marmite> neck of the flamingo stick is 0.2
[11:20:55] <marmite> just stuck it to the work area with dubble adhesive tape
[11:22:25] <Vq> That's actually quite impressive.
[11:22:37] <marmite> :)
[11:22:43] <marmite> and that was cut with a dremel btw
[11:22:43] <marmite> :D
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[11:23:06] <Vq> It looks a bit rough, but I guess it shines as a proof-of-concept material.
[11:23:36] <marmite> indeed, i amd gonna reedo it with my new spindle it will be alot better
[11:24:01] <marmite> 2mm thick btw
[11:24:14] <Vq> A dremel would be advantageous would it not? High RPM, less vibrations?
[11:24:45] <marmite> hmmm problem is that is unsatable whel atleast mine is, bad bearings
[11:24:50] <jthornton> dremels vibrate a lot
[11:25:05] <jthornton> and have poor spindle bearings
[11:26:05] <Vq> ok
[11:26:36] <marmite> but i really recomend you guys to test vinyl records ^^
[11:27:45] <Vq> Might give it a try some time :)
[11:27:53] <marmite> :)
[11:28:48] <Vq> Nice cheap keyboard btw
[11:30:08] <Vq> (typing this on an identical down to the safety label ;)
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[11:34:16] <Vq> What kind of tool are you using?
[11:39:09] <marmite> haha awsomo !
[11:39:27] <marmite> for the pickguard a china 2mm 2flute endmill
[11:39:42] <marmite> for the jewelery a used a 0.2 singel engraving endmill
[11:41:00] <marmite> those keyboards rock !
[11:41:15] <marmite> http://upload.wikimedia.org/wikipedia/commons/4/46/Dell_L100_keyboard.JPG one of my favorites aswell
[11:41:56] <Vq> They are surprisingly good for their price, might be the second best product to be produced by HP.
[11:42:16] <marmite> indeed
[11:42:53] <archivist> dell != HP
[11:43:13] <jymmm> (yet)
[11:44:01] <archivist> unless Dell buys what's left of HP as it falls over slowly
[11:45:06] <jymmm> I suppose it wouldn't be a bad thing picking up Compaw/HP customer base and existing resources
[11:45:13] <jymmm> Compaq*
[11:45:36] <Vq> HPs RPN calculators and those cheap keyboards are still the best to come from HP or Dell...
[11:45:44] <jymmm> HP sells to Medical groups by the pallet fulls
[11:45:54] <jymmm> Kaiser, etc
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[12:05:56] <marmite> well the hp2600 is fucking great :D
[12:10:28] <marmite> https://www.kickstarter.com/projects/shawnpwest/30-second-charging-rechargeable-battery alla?
[12:11:20] <marmite> smart^^
[12:16:13] <jdh> HP LJII/4 are great
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[12:25:36] <jymmm> jdh: Come join us in THIS century!!!
[12:25:59] <jymmm> jdh: (But yes, yes they were)
[12:26:08] <archivist> ARE
[12:26:11] <Smidge204__> This century sucks. I'll wait for the next one :/
[12:26:15] <jdh> "great" vs. "good for current consumer grade crap"
[12:26:30] <jymmm> No, great vs crap
[12:26:41] <jymmm> consumer or professional
[12:26:46] <jymmm> doens't matter
[12:26:57] <jdh> 2600 is the one that bleeds toner down that front roller thing?
[12:27:12] <jymmm> Is that color?
[12:27:33] <jdh> if they kept making LJ4 type printers, they would only sell 10% as many
[12:27:43] <jymmm> If so, it eats toner for breakfast
[12:28:09] <jymmm> I think I paid $950 for my LJ4p
[12:28:46] <jymmm> I just got rid of it earlier this year too
[12:29:08] <archivist> I managed to get postscript version
[12:29:20] <jymmm> LJ4MP ?
[12:29:26] <archivist> :)
[12:29:41] <archivist> used it for printing PCB info
[12:30:16] <jymmm> Yeah, I do love them, but 4ppm, no pwr mgnt, no usb/ether
[12:31:29] <jymmm> I've been looking for a Color laser AIO for years; nada
[12:32:13] <jymmm> I have to go with one of those copier style ones if I want quality
[12:32:37] <archivist> I have a colour Lexmark rusting in a shed
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[12:33:07] <jdh> buying toner for color lasers is painful
[12:33:43] <jymmm> yeah, and now they have that count chip in them too
[12:33:52] <jymmm> easy fix if you buy off ebay
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[12:38:22] <RobertBerger> did someone here have a look at out of memory/large files results in stopped LinuxCNC - https://github.com/machinekit/machinekit/issues/193 ?
[12:40:03] <archivist> ask on their mailing list
[12:40:24] <RobertBerger> OK
[12:40:57] <RobertBerger> you mean goggle group machinekit ?
[12:48:21] <jymmm> or whatever support mechanism they provide.
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[13:17:56] <Deejay> hi
[13:20:09] <Smidge204__> Ho
[13:21:47] <Deejay> yo :)
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[13:22:38] <archivist> bugger....local and cannot afford http://www.ebay.co.uk/itm/Cincinnati-Arrow-750-vmc-cnc-milling-machine-mill-/231282333173?pt=LH_DefaultDomain_3&hash=item35d98055f5
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[13:36:25] <JT-Shop> priced a bit high for parts or not working IMHO
[13:37:52] <JT-Shop> at least you can make an offer on it
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[13:42:58] <archivist> I couldnt even fight properly for this today http://www.ebay.co.uk/itm/261529710214?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
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[13:49:46] <jdh> I have no need for one, but it certainly looks cool.
[13:52:22] <archivist> I made something to do that job for small stuff but not as good
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[14:18:10] <PetefromTn_> Morning folks
[14:22:00] <Vq> Good afternoon
[14:22:54] <PetefromTn_> ;)
[14:24:03] <Deejay> hi Pete
[14:24:17] <PetefromTn_> Hey Deejay!!
[14:25:26] <PetefromTn_> It's my Birthday today LOL Gettin' old...
[14:25:50] <Deejay> congrats! happy birthday!
[14:25:56] <skunkworks> Happy Birthday!
[14:25:59] <PetefromTn_> hehe Thanks man..
[14:26:38] <jthornton> yea, once you stop getting old you don't do much anymore
[14:26:50] <PetefromTn_> sure don't LOL
[14:26:50] <Vq> PetefromTn_: Congratulations :)
[14:26:52] <jthornton> congrats on having another birthday
[14:28:45] <PetefromTn_> thanks JT
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[15:07:07] <ssi> man Iwas up too late last night
[15:07:27] <jdh> couldn't stop watching youtube kitten videos?
[15:07:59] <Deejay> hrhr
[15:08:38] <archivist> time for a cnc kitty
[15:08:44] <zeeshan> i was up late too
[15:08:47] <zeeshan> driving the new daily driver
[15:08:54] <zeeshan> my body hates me for it right now
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[15:14:14] <jdh> for driving late?
[15:15:46] <JT-Shop> PetefromTn_, so how many times has this happened to you so far?
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[15:19:46] <zeeshan> jdh yes
[15:19:49] <zeeshan> lack of sleep
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[15:24:52] <ssi> https://www.youtube.com/watch?v=7IvmPCEMQog&list=UUr7MNWyB-ulNKaO_zPfQ8nw
[15:25:00] <ssi> I got my lid built lasternight tho :D
[15:27:25] <skunkworks> ssi, did you get your tube to fit?
[15:28:04] prtksxna is now known as zz_prtksxna
[15:28:54] <ssi> yeah I added 5" to the back of the frame
[15:29:03] <ssi> I still need to finish boxing in around the bottom
[15:29:08] <skunkworks> heh - that is cheating ;)
[15:29:24] <ssi> oh yeah? whtat would have been not cheating? :P
[15:29:45] <skunkworks> creating alternative space time within the frame?
[15:29:50] <ssi> :)
[15:30:04] <ssi> I thought about putting the tube below, but that would have meant adding a fourth bounce mirror
[15:30:09] <ssi> and I ultimately decided that was a bad idea
[15:32:40] <zeeshan> i have
[15:32:50] <zeeshan> 36 1/4-20 holes i gotta tap in a plate
[15:32:56] <zeeshan> i'm really considering power tapping
[15:33:04] <ssi> I would
[15:33:06] <ssi> I power tap everything :P
[15:33:11] <zeeshan> i don't have a power tap head
[15:33:15] <zeeshan> nor a cnc mill
[15:33:18] <ssi> hand drill
[15:33:29] <zeeshan> i'm afraid with a hand drill it'll go crooked
[15:33:36] <JT-Shop> armstrong power then
[15:33:42] <ssi> make a bushing block to start it
[15:33:43] <zeeshan> i was thinking in a milling machine
[15:33:51] <zeeshan> just have the plate free floating
[15:33:55] <zeeshan> and go at it?
[15:34:06] <zeeshan> cause i can have it in back gear and spin it at like 5 rpm
[15:34:18] <ssi> sounds like a recipe for disaster :)
[15:34:22] <zeeshan> why
[15:34:34] <zeeshan> i can have it mounted in a vise
[15:34:36] <zeeshan> that floats
[15:34:44] <JT-Shop> the plate won't float once you get torque on it
[15:34:44] <ssi> cause if you screw up and bottom out the tap it'll break off
[15:35:08] <ssi> and the plate's probably heavy enough that when it tries to climb up the tap it'll angle real bad and break the tap
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[15:35:20] <zeeshan> so you're saying position it
[15:35:23] <zeeshan> and lock it in place
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[15:35:32] <ssi> might be better off making the quill nice and loose
[15:35:36] <ssi> if you have a quill
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[15:35:40] <zeeshan> i do
[15:35:45] <zeeshan> its a bridgeport replica
[15:35:47] <ssi> let the tap pull the quill into the work
[15:35:54] <ssi> rather than expecting it to pull the plate up
[15:35:57] <JT-Shop> that might work
[15:36:06] <zeeshan> can i still keep the vise free floating
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[15:36:13] <ssi> but you have to make sure you don't let it spin down to the bottom of the flutes
[15:36:13] <zeeshan> so i can position the holes
[15:36:14] <zeeshan> quickly
[15:36:19] <ssi> in back gear you have a TON of torque
[15:36:26] <ssi> and it'll break that tap like it's nothing
[15:36:34] <zeeshan> especially a 1/4"
[15:36:35] <zeeshan> ;p
[15:36:39] <JT-Shop> what size tap?
[15:36:43] <zeeshan> 1/4-20
[15:36:54] <zeeshan> i have all sorts of taps
[15:36:59] <zeeshan> bottoming, spiral etc
[15:37:04] <zeeshan> i was thinking spiral i'll use
[15:37:11] <zeeshan> but its also the weakest and easiest to break
[15:37:20] <JT-Shop> spiral point for thru holes
[15:37:26] <ssi> if you have one where the shank is smaller than the flutes
[15:37:26] <zeeshan> actually i dont need spiral for thru
[15:37:27] <zeeshan> yes
[15:37:38] <zeeshan> ssi all my taps are like that
[15:37:43] <zeeshan> thats why i was confused why you're saying
[15:37:44] <zeeshan> it'll break
[15:37:45] <ssi> ok
[15:37:46] <JT-Shop> spiral point or spiral flute?
[15:37:48] <zeeshan> cause it'll go right through
[15:37:53] <ssi> that'd be better then
[15:37:57] <zeeshan> JT-Shop: both
[15:38:25] <ssi> spiral point are for thru, spiral flute are for blind holes cause they auger chips back out
[15:38:26] <JT-Shop> spiral point pushes the chips ahead and is what you normally use for thru holes
[15:38:36] <JT-Shop> what ssi said
[15:38:43] * JT-Shop goes to town
[15:38:50] <ssi> I think I'm gonna go to town too
[15:38:50] <zeeshan> :]
[15:38:57] <ssi> need to go get some mcmaster crap
[15:39:01] * JT-Shop tapped a zillion 1/4-20 holes with a hand drill a few years ago
[15:39:16] <JT-Shop> in 11ga tubing
[15:40:02] <zeeshan> this is 1/2" 6061
[15:40:10] <zeeshan> so less tolerant to angled tap hole
[15:41:45] <PetefromTn_> JT-Shop How many times has what happened to me ?
[15:42:41] <skunkworks> I assume 'birthdays'
[15:42:57] <PetefromTn_> Oh okay I wondered. 44 unfortunately LOL...
[15:43:11] <PetefromTn_> Gettin' old..
[15:43:43] <skunkworks> heh - just turned 41...
[15:43:53] <skunkworks> (and have a 2yo...)
[15:44:28] <PetefromTn_> I have a six and twelve year old kids..
[15:44:29] <PetefromTn_> oops seven now actually
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[15:45:08] <skunkworks> he
[15:45:09] <skunkworks> ehe
[15:45:11] <skunkworks> heh
[15:45:46] <jdh> mine are 18/19 and mostly gone!
[15:46:00] <skunkworks> nice!
[15:46:18] <PetefromTn_> https://www.youtube.com/watch?v=KYJQhbgHErk
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[15:46:50] <skunkworks> http://electronicsam.com/images/KandT/testing/IMG_20140717_110054_019.jpg
[15:47:42] <zeeshan> =]
[15:47:55] <PetefromTn_> what're we looking at skunkie?
[15:48:48] <jymmm> skunkworks: 2000 series intel mobo?
[15:48:59] <jymmm> skunkworks: 12v version?
[15:49:07] <skunkworks> it is a gigabyte j1900
[15:49:11] <jymmm> wait, no, too tall
[15:50:03] <skunkworks> dual nics - playing with the 7i80
[15:50:22] <jymmm> skunkworks: what ether chipset?
[15:50:44] <ssi> good god acrylic sheet is expensive :(
[15:51:28] <jymmm> skunkworks: realtek, ewwww. known linux bugs
[15:51:38] <jymmm> ssi: not really
[15:52:01] <ssi> $76 for 4'x4' 1/8 :(
[15:52:11] <ssi> looks like that's $55 on eplastics.com
[15:52:20] <ssi> any suggestions on local vendors that might not be too rapey?
[15:52:50] <ssi> hell it looks like even home depot might be cheaper than mcmaster
[15:53:28] <zeeshan> thats over priced
[15:53:34] <ssi> I agree
[15:53:52] <zeeshan> to give you a comparison, my local supplier "p&a plastics" charged me 52$ for a 1/4" 24x24" piece
[15:53:57] <zeeshan> for lexan
[15:54:00] <zeeshan> which is more expensive..
[15:54:23] <zeeshan> the 6"x6" 1/4" piece of white acrylic was 18$
[15:54:38] <zeeshan> but we might have gotten university discount or something
[15:54:39] <zeeshan> i dont know
[15:54:47] <jymmm> 1/8x48x96 $107, @3 $87/ea
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[15:55:07] <zeeshan> oh 4 FEET
[15:55:08] <zeeshan> lol
[15:55:12] <zeeshan> i misread.
[15:55:17] <ssi> heh
[15:55:26] <ssi> http://www.homedepot.com/p/Unbranded-48-in-x-96-in-x-1-8-in-Acrylic-Sheet-MC-100/202038054
[15:55:28] <PetefromTn_> SSI You can get acrylic sheet as well as other plastics from Onlinemetals for reasonable prices. .118 24x48 is like $24.00]
[15:55:32] <ssi> unfortunately that's online only :(
[15:55:32] <jymmm> .062x48x96 $63
[15:55:38] <zeeshan> my bad!
[15:55:50] <ssi> 0.062 would probably work
[15:56:00] <zeeshan> why acrylic
[15:56:13] <zeeshan> !
[15:56:21] <ssi> as opposed to what?
[15:56:24] <zeeshan> lexan
[15:56:30] <ssi> acrylic is cheaper
[15:56:38] <zeeshan> but it cracks so easy!
[15:57:01] <zeeshan> i made a gauge pod out of acrylic for the rx7
[15:57:02] <zeeshan> 1/4"
[15:57:11] <ssi> hell actually from mcmaster at least it's not any cheaper
[15:57:13] <zeeshan> survived hole saws
[15:57:18] <ssi> jymmm: is polycarbonate laser safe?
[15:57:20] <zeeshan> but snapped during install :p
[15:57:29] <zeeshan> yea it is
[15:57:39] <zeeshan> we made a die out of lexan on the laser
[15:57:50] <jymmm> ssi: Yes, anything but PVC
[15:57:59] <ssi> ok
[15:58:16] <zeeshan> to give you a comparison
[15:58:22] <zeeshan> bandsawing lexan vs acrylic
[15:58:27] <zeeshan> 1/4"
[15:58:32] <zeeshan> acrylic always cracked on me
[15:58:46] <zeeshan> thats the main reason we ended up going with lexan
[15:59:31] <ssi> bleh i'd really lather use 1/8" than 1/16"
[15:59:40] <ssi> I'm afraid the 1/16" will rattle around even with this snap in channel
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[16:00:51] <ssi> 1/8" lexan is $145/sheet from mcmaster
[16:00:55] <ssi> one sheet won't quite do the whole enclosure
[16:00:58] <ssi> but it should get me close
[16:01:22] <ssi> oh weird, "UV resistant" lexan is cheaper
[16:01:27] <ssi> $129/sheet
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[16:04:54] <ssi> there goes another $450 mcmaster order
[16:04:58] <ssi> this machine is getting expensive :)
[16:06:31] <Smidge204__> Kind of your fault :p
[16:06:36] <ssi> now the question is, can I get to mcmaster and pick it up and get home before the mailman comes
[16:06:46] <ssi> my mesa card is hopefully in the mail, and it's almost certainly signature required
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[16:07:30] <Smidge204__> eh... what's that for?
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[16:07:47] <ssi> mesa card?
[16:07:48] <bildz> anyone here worked with the isilon before?
[16:07:53] <Smidge204__> Oh! Sorry, I'm looking at the wrong chanel
[16:07:56] <ssi> oh
[16:07:57] <ssi> heheh
[16:08:12] <Smidge204__> I thought this was #reprap, thinking "Jesus, that's overkill..."
[16:08:26] <ssi> hahaha
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[16:15:24] <CaptHindsight> ssi: aren't there any plastic sheet suppliers in your neck of the woods? that sheet will be 1/2 that
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[16:19:05] <CaptHindsight> http://www.eplastics.com/Lexan_Clear_Polycarbonate_Sheet
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[16:46:53] <IchGuckLive> hi all
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[16:47:40] <SpeedEvil> ssi: where are you?
[16:47:42] <SpeedEvil> Oh - USA
[16:47:44] <XXCoder1> hey
[16:48:28] <IchGuckLive> its melting germany tofay as temperatures hit record high and tomorrow even more
[16:49:17] <IchGuckLive> CaptHindsight: lexan PC is double the price of standard PC with a trick you can mill PC standard at halv price
[16:51:28] <IchGuckLive> zeeshan: there are clots of PMMA that will work also at cheeper values
[16:52:18] <SpeedEvil> ssi: What are you using this lexan for?
[16:52:25] <CaptHindsight> yes, Lexan is a trade name, Polycarbonates are a group of thermoplastics, so pricing will vary widely based on the formulation, supplier and popularity
[16:54:25] <IchGuckLive> depends on how tight te molekule grid structure is and on how long the Ethan chanins are
[16:54:45] <IchGuckLive> it breaks at drill or at liniar force
[16:55:18] -!- grummund has quit [Ping timeout: 240 seconds]
[16:55:37] <IchGuckLive> there are PC and PMMA out that are well thermo produced and handeld so they can take alot of force
[16:56:38] <IchGuckLive> i got this problem years ago as i did a scale ship for the world chanpionship of boot modelling
[16:57:05] <IchGuckLive> in Augest at high temperatures in a cold lake its a nightmar to keep it watertight
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[17:31:25] <IchGuckLive> K6MLE: all clear at gacko fromtier
[17:32:13] <K6MLE> Hi Ich ... no-go so far ... still fighting it!
[17:32:31] <IchGuckLive> dir is solved
[17:33:12] <K6MLE> DIR is still a problem. Doesn't always respond to a change in direction signal ...
[17:33:41] <jdh> I know the subway
[17:33:50] <jdh> do you have another computer ?
[17:33:53] <IchGuckLive> did you change the X Y connectors to check if it happens at the changed axis also
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[17:36:08] <IchGuckLive> this may give you a ideei f Mashine or PC is to blame for the issue
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[17:46:32] <K6MLE> Sorry ... had a short meeting .... I did swap the connectors, with the same result.
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[17:47:24] <IchGuckLive> same result on what
[17:47:37] <IchGuckLive> did now the Y not change dir
[17:48:18] <IchGuckLive> X has been the problem
[17:48:36] <IchGuckLive> or both
[17:50:48] <K6MLE> I still get X & Y not always responding to the DIR signal ...
[17:51:22] <K6MLE> I was just using X a a simple test, but it's really the same on all axes.
[17:52:07] <archivist> need to fix not getting full 0-5 v signals (where I last saw progress/lack of)
[17:52:44] <IchGuckLive> ok then we blame the PC
[17:52:57] <jdh> this is a g540? which connector did you swap?
[17:53:07] <K6MLE> arch: perhaps a new parallel port board? This port is currently part of the mother board.
[17:53:31] <IchGuckLive> 10 USD so go for it
[17:53:49] <IchGuckLive> how lng is the cable is it IDEEE
[17:53:51] <K6MLE> jdh: this is a G540 ...
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[17:54:18] <K6MLE> The DB25 cable is a 6 foot cable.
[17:54:58] <IchGuckLive> oh thats long at DB25
[17:55:08] <jdh> you swapped the connector between the motor and the g540? or between the X & Y drives on teh g540?
[17:55:25] <archivist> increase the dirdelay with a long cable
[17:55:54] <K6MLE> jdh: swapped the DB9 cables at the G540.
[17:56:11] <jdh> heh
[17:56:29] <IchGuckLive> db9 are motor plugs
[17:56:47] <IchGuckLive> arend there 4 of this and only 3 motors
[17:57:10] <K6MLE> only 3 motors ... on a 4-axis controller
[17:57:37] <IchGuckLive> did you correctly grounded the 4th that maybe the noice
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[17:58:04] <K6MLE> The 4th has no connector on it.
[17:59:11] <IchGuckLive> so that might be a problem as DB25 has high pullups and the Hbrige is on fire
[18:00:40] <jdh> if you buy a new pport, you might as well splurge on a 5i25
[18:00:43] <K6MLE> I think picking up a parallel port board would be a good idea ...
[18:01:15] <K6MLE> jdh: not sure what that is (5i25).
[18:01:49] <K6MLE> They've got the boards just down the street from me for $20.
[18:02:26] <jdh> there is a lot to be said for that.
[18:02:30] <jdh> http://www.mesanet.com/fpgacardinfo.html
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[18:04:22] <ssi> well that was a waste of a two hour drive :(
[18:05:03] <IchGuckLive> ssi sometimes it is that way
[18:05:32] <K6MLE> ssi: but you got outside with the wind in your hair !! :)
[18:05:36] -!- gonzo___ has quit [Ping timeout: 240 seconds]
[18:05:40] <ssi> heh
[18:05:49] <IchGuckLive> onm a bikeride !
[18:06:02] <ssi> I drove to mcmaster to pick up all the crap I ordered
[18:06:12] <ssi> and the crew in the auxilary warehouse was at lunch
[18:06:17] <ssi> and they estimated 2 hours before it could be picked
[18:06:25] <ssi> but I have to be home to receive the mail to sign for mesa gear
[18:06:39] <ssi> so I came home empty handed... I'll have to try to go after traffic before they close, or tomorrow morning
[18:06:58] <jdh> they do pickup on Sat?
[18:06:58] <IchGuckLive> friday 14th
[18:07:03] <ssi> will call, yes
[18:07:05] <jdh> cool
[18:08:26] <IchGuckLive> ssi do they got a showroom
[18:08:37] <ssi> no
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[18:12:54] <IchGuckLive> im off BYE
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[20:01:48] <Deejay> gn8
[20:02:16] <JT-Shop> dang all I got done this afternoon was to put 5 gallons of diesel in the dozer and 5 gallons in the backhoe
[20:02:33] -!- Deejay has quit [Quit: bye]
[20:02:38] <archivist> a lazy sunny afternoon
[20:09:48] -!- ej [ej!5b9d8d48@gateway/web/freenode/ip.] has joined #linuxcnc
[20:10:31] <ej> hello!
[20:10:38] <JT-Shop> been running all over the country side looking at crawlers with my friend who has the itch for one now
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[20:16:38] <jymmm> isn't that what the tractors you have are for?
[20:18:31] <JT-Shop> big difference between a tractor, a backhoe and a dozer
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[20:18:49] <JT-Shop> but yea you play in the dirt with all three but not at the same time
[20:20:24] <SpeedEvil> Add R/C, so you can play with more than one at once
[20:28:31] <jdh> how do you make a fillet go the other direction in autocad
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[20:39:41] <mesa-vsd> hi! does anyone have experience on buliding custom mesa hostmot2 firmware bitfiles?
[20:43:06] -!- automata_ has quit [Ping timeout: 240 seconds]
[20:43:21] <cradek> I have experience in avoiding doing that
[20:43:25] <cradek> why do you want to?
[20:44:05] <cradek> (I've rewired to avoid needing a custom one)
[20:44:21] <mesa-vsd> my choises are either at least two board BOB, or one with custom fw
[20:44:52] <mesa-vsd> plus with custom fw, I'd have two sserial ports
[20:48:30] <mesa-vsd> so I'll take the silence as a no?
[20:48:53] <cradek> I imagine very few people have built their own
[20:49:21] <mesa-vsd> true
[20:49:22] <cradek> peter certainly builds customs for people, but then you risk not getting bugfixes, etc.
[20:49:57] <cradek> but don't let me discourage you. you can certainly do it yourself (... somehow)
[20:49:59] <mesa-vsd> peter?
[20:50:13] <cradek> the smart mesa guy
[20:50:24] <mesa-vsd> ok
[20:50:29] <cradek> if you just say PCW he will often appear
[20:50:32] <mesa-vsd> my other pc is currently downloading ISE for linux
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[20:51:02] <mesa-vsd> good to know :O
[20:52:08] <mesa-vsd> I got the impression, that the PIN_...vhdl file should be enough and no other code/file needs to be edited in order to create new firmwares
[20:52:27] -!- i_tarzan [i_tarzan!~i_tarzan@] has joined #linuxcnc
[20:53:06] <mesa-vsd> ..in addition of adding the file to the firmwares.txt -list
[20:53:22] <mesa-vsd> setting the environment is the issue for me
[20:53:58] <cradek> I have also heard that you have to pick the ISE version carefully
[20:54:07] <cradek> I'm sorry I don't know any details for you
[20:54:36] <mesa-vsd> some web pages suggest, that the correct ise version might be critical
[20:54:52] <cradek> yep
[21:00:11] <mesa-vsd> thanks & bye! :)
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[21:18:53] <k6mle-CNC> Got a new parallel port card ... still getting occaisional direction change misses ...
[21:19:14] <jdh> on all axes?
[21:19:31] <k6mle-CNC> Just tried it on the X
[21:19:54] <k6mle-CNC> I can make a quick gcode change to test others.
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[21:22:06] <k6mle-CNC> Just tried in on Y with same result ... I am noticing that the ramp up and down appear 'jumpy'...
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[21:24:07] <jdh> p-port in EPP mode?
[21:24:54] <k6mle-CNC> Now that's a good question ... the PCI board I just added didn't appear in the BIOS, as I recall.
[21:25:18] <jdh> was your onboard pport in EPP mode?
[21:25:29] <k6mle-CNC> Yes it was.
[21:26:08] <jdh> and the two ports fail the same?
[21:26:15] <k6mle-CNC> yes.
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[21:28:10] <k6mle-CNC> Jog speed and Max velocity sliders are at 5.8 In/min & 60 in/min respectively, if that helps.
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[21:32:40] <jdh> shouldn't affect direction changes. are your dirlen/etc abnormally low?
[21:33:05] <k6mle-CNC> Let me check ...
[21:34:14] <jdh> dirhold/dirsetup/wtf
[21:35:19] <k6mle-CNC> HAL file has: setp stepgen.0.dirhold 6500; setp stepgen.0.dirsetup 6500; setp stepgen.0.stepspace 0; setp stepgen.0.steplen 1
[21:38:18] <k6mle-CNC> Is 6500 abnormal ? High, or low?
[21:39:11] <jdh> where did those values come from?
[21:39:30] <k6mle-CNC> Probably from the default G540 settings in stepconf
[21:40:19] <jdh> manual says min 200nS so 6500 should be plenty.
[21:40:35] <jdh> says 2uS/1uS for step time though.
[21:41:44] <k6mle-CNC> is that steplen/stepspace?
[21:41:48] <jdh> change the no
[21:41:50] <jdh> no
[21:41:58] <k6mle-CNC> oka
[21:42:33] <jdh> my pport config has steplen1 but I don't know that it is related.
[21:42:38] <jdh> (and not a g540)
[21:43:14] <k6mle-CNC> okay ... is there a "HAL for Dummies" book anywhere !? :)
[21:43:30] <jdh> integrators manual. I just google though
[21:44:10] <k6mle-CNC> Yeah ... that's what I was afraid of ... reference manual, but not really a hand-holding guide.
[21:44:54] <jdh> I was under the impression that G540 was usually plug-and-play
[21:45:12] <k6mle-CNC> That's what I thought when I bought it!
[21:45:31] <k6mle-CNC> Makes me think I'm overlooking something real simple!
[21:46:35] <k6mle-CNC> There must be folks running the G540 with LinuxCNC?
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[21:54:05] <jdh> email Mariss
[21:55:43] <k6mle-CNC> Mariss?
[21:55:58] <jdh> Mr. Gecko
[21:56:13] <jdh> might be interesting: http://www.cnczone.com/forums/linuxcnc-formerly-emc2-/97534-losing-position-lots-position.html#post723135
[21:56:20] <k6mle-CNC> Does he hang out here? I don't see him logged in right now.
[21:56:26] <jdh> no
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[22:06:53] <ssi> k6mle-CNC: I've been running a g540 with linuxcnc for years
[22:06:55] <ssi> no issues
[22:07:05] <ssi> not those issues anyway :)
[22:07:25] <k6mle-CNC> ssi: what motors are you using?
[22:07:33] <ssi> 381ozin keling steppers
[22:08:21] <k6mle-CNC> Mine are KL23H276-28-4B
[22:08:52] <k6mle-CNC> Spec sheet is at my desk in another part of the facility ...
[22:08:58] <ssi> I've used those as well... those should be well matched
[22:09:04] <ssi> http://www.kelinginc.net/KL23H276-28-4B.pdf
[22:09:16] <ssi> what voltage psu?
[22:09:35] <k6mle-CNC> Do you have a HAL and INI file you could let me look at?
[22:09:51] <k6mle-CNC> Voltage is currently set to 45V
[22:10:07] <ssi> I can, but I dunno how helpful it'll be
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[22:11:20] <k6mle-CNC> If these motors should work with the G540, then it's something with the computer, hardware, or configuration ... just gave it a new PCI parallel port earlier this afternoon ... no change!
[22:11:25] <ssi> here's the ini
[22:11:25] <ssi> http://pastebin.com/WnFBhc7Z
[22:12:20] <ssi> here's the hal
[22:12:20] <ssi> http://pastebin.com/3js19qiW
[22:12:47] <ssi> might be worth your while to spend the $60 or whatever on a 5i25
[22:12:56] <ssi> I don't do software stepping at all
[22:13:20] <ssi> life's too short to screw with software stepping :)
[22:14:17] <k6mle-CNC> Is that a PCI board?
[22:14:20] <ssi> yes
[22:14:26] <ssi> 6i25 is same thing but pcie
[22:14:50] <ssi> you can get it with a preloaded g540 firmware, plugs directly into g540 as if it were a parallel port
[22:14:56] <k6mle-CNC> Okay ... this machine only has PCI slots, so the 5i25 would work.
[22:15:47] <k6mle-CNC> I gather the 5i25 is doing the stepping then?
[22:15:50] <ssi> yes
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[22:16:26] <k6mle-CNC> I'll see if I can't get one ordered tomorrow.
[22:16:27] <ssi> I just got another one in the mail today... weeee :D
[22:16:49] <ssi> I have like five of them... and three of the older interface cards
[22:17:10] <k6mle-CNC> What's involved in setting it up in LinuxCNC?
[22:17:15] <ssi> it's pretty simple
[22:17:19] <ssi> stepconf has a profile for it
[22:17:32] <ssi> but if you look at the hal/ini files I linked you, you can see how mine's setup
[22:17:44] <ssi> you're worknig with hostmot2 stepgens rather than the regular "stepgen" component
[22:17:51] <ssi> and the gpios are broken out under hostmot2 as well
[22:17:54] <ssi> other than that, it's the same
[22:18:40] <k6mle-CNC> Sounds like the way to go. I've been beating myself up over this upgrade for far too long!
[22:18:57] <ssi> well hopefully it'll take care of your problem, and it'll be a nice upgrade as well
[22:19:04] <ssi> really takes a lot of the realtime burden off the pc
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[22:19:31] <ssi> that way you only have the 1ms servo thread, and no tight stepgen loop
[22:20:32] <k6mle-CNC> This computer has been something of a question mark all along!
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[22:23:15] <Nick001-shop> <ssi> What mesa cards do you have in the hardinge?
[22:23:43] <ssi> 5i20 I think
[22:23:45] <ssi> one of that series
[22:23:53] <ssi> and then the 7i49 resolver interface/servo drive
[22:23:59] <ssi> and a gpio breakout of some kind
[22:24:35] <Nick001-shop> any part #?
[22:24:41] <k6mle-CNC> ssi: what's the selection I want in the stepconf drop down?
[22:24:43] <andypugh> 7i49 is cool. Because Resolvers are cool :-)
[22:24:50] <ssi> not sure what the part on the gpio card is
[22:24:53] <ssi> andypugh: yes, yes they are :)
[22:24:58] <ssi> at first I thought they were a liability
[22:25:12] <ssi> but once I got them working, I was blown away
[22:25:13] <andypugh> Me too. They grow on you :-)
[22:25:22] <ssi> the way they work is super awesome
[22:25:40] <ssi> k6mle-CNC: I don't know offhand; haven't seen stepconf in awhile :)
[22:25:58] <Nick001-shop> I think I need a 7149HV for my resolvers - according to my notes
[22:26:03] <ssi> yeah that's the one I have
[22:26:11] <andypugh> And no worries about losing a count and creeping. +100% repeatable homing.
[22:26:22] <ssi> I think pcw actually made the HV version special for me cause I was having issues with resolvers clipping
[22:26:27] <k6mle-CNC> ssi: okay ... your HAL and INI files will help then ... the dropdown is for the driver type, which I guess should still be the G540 ..
[22:26:53] <ssi> drive level was too high
[22:27:56] <Nick001-shop> It was the ratio in the resolvers that was different and he came up with the HV version
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[22:30:01] <ssi> yea the transformation ratio, that's right
[22:30:08] <Nick001-shop> It's time for me to do the second hardinge and I wanted to try something different than the pico cards that I'm using now. They've been working but now the single point threating seems to have hiccuped. I think it's the index signal coming from the spindle resolver through the adapter card and mesa has it where I can hook the resolvers up directly.
[22:31:41] <ssi> resolvers have been rock solid on the 7i49
[22:31:46] <ssi> I definitely recommend it :)
[22:31:55] <ssi> I recall the pico cards being super expensive too
[22:31:56] <Nick001-shop> It would also save me having to buy three resolver converter cards at hundred and $150 each. Plus cut down on the number of things I can go wrong which they really have a habit of doing here.
[22:32:26] <ssi> my pneumatics are dorked up, hardinge hasn't run for a year and a half :/
[22:32:26] <Nick001-shop> I/which
[22:33:55] <Nick001-shop> You still really do need to start disassembling from the intake sde and start cleaning things out as you said you had real Rrusty pipes and no regulator assembly at the machine.
[22:35:03] <Nick001-shop> gpio breakout card?
[22:37:38] <andypugh> Nick001-shop: I like the 7i64. Lots of isolated 2A / 48V IO :-)
[22:38:18] <andypugh> My machine has 5i23, 7i49, 3x 8i20, 7i44, 7i39, 7i64 and 7i73.
[22:39:00] <Nick001-shop> will it work with the 5i20 and 7149hv ?
[22:39:24] <andypugh> I can’t claim to have paid for them all though, I got at least the 8i20, 7i49, 7i39 and 7i64 as samples to write the drivers for.
[22:40:49] <andypugh> Nick001-shop: You would need a 7i44 to connect the smart-serial cards. for just one card that seems like a waste.
[22:41:08] <ssi> I need someone who knows what the hell they're doing to come help me with the pneumatics :P
[22:41:23] <andypugh> There are ways to hae one channel of smart-serial out of some other cards.
[22:42:47] <Nick001-shop> I also need to drive 2 pico servo amps in place of the AB servo's which are getting querky lately
[22:43:43] <Nick001-shop> what ways - ant docs
[22:43:49] <Nick001-shop> any
[22:46:12] <andypugh> The amps are PWM I think?
[22:46:38] <Nick001-shop> yes they are
[22:46:55] <andypugh> Pity, the 7i49 is analogue output.
[22:47:12] <andypugh> Do you already have the Pico amps
[22:47:13] <andypugh> ?
[22:47:52] <Nick001-shop> using 2 on the first machine and they are working out good
[22:48:34] <Nick001-shop> the need to take 110 VDC yet I have them fused at 4 anps to the motor
[22:49:16] <Nick001-shop> which is 1/2 amp lower than the AB setup
[22:49:26] <andypugh> If you _don’t_ have the amps then the 8i20 might suit.
[22:50:07] <Nick001-shop> is that a servo driver card?
[22:50:22] <andypugh> Yes, brushless servo drive.
[22:51:14] <Nick001-shop> I have brushed motors - these are 35 year old motors and drives
[22:51:23] <andypugh> Mesa also have a dual brushed-servo drive that plugs straight into the 8i20
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[22:52:02] <Nick001-shop> no room to put different motors on x axis
[22:52:25] <Nick001-shop> what would that part # be?
[22:52:38] <andypugh> http://store.mesanet.com/index.php?route=product/product&path=83_90&product_id=141
[22:53:22] <andypugh> That drives 2 motors, and you can have 2 of them (4 motors) on one 5i20 socket
[22:54:15] <andypugh> It’s a bit overkill for your motors, but the next one down is the 7i40 HV and that is only 80V / 7A
[22:55:21] <andypugh> So the Pico cards might be a better fit.
[22:56:28] <Nick001-shop> I thought mesa had a way of driving an AB servo amp - which means it should be adaptable to the pico
[22:57:35] <andypugh> PWM output is pretty easy from the Mesa cards, just not on the 7i49
[22:58:03] <Nick001-shop> and they have to work with 5i20,7164hv and 7i64 cards
[22:58:24] <andypugh> You could have PWM through a suitable daughter card (or, in fact, just some wires) on another port.
[22:58:32] <Nick001-shop> 7i49 is for the resolver feedback
[22:59:08] <andypugh> Yes, but the 7i49 also has an analogue output for each resolver to drive the drives. All but one of mine are wasted too.
[22:59:28] <andypugh> (i drive the VFD from one analogue out)
[23:00:36] <andypugh> If you are going for PWM out then you probably want the 7i37TA and don’t bother with the 7i64.
[23:00:42] <Nick001-shop> i don't have any VFD's - also need +& - 10vdc to drive the spindle driver
[23:00:55] <andypugh> http://store.mesanet.com/index.php?route=product/product&path=83_86&product_id=104
[23:01:50] <andypugh> (As a plus, it is much cheaper than the 7i64, and not that much less capable (1 A 48V rather than 2A 48V on the output)
[23:02:22] <andypugh> Actually, talk to PCW, the 7i37 outpouts might but sub-optimally slow to output PWM.
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[23:05:54] <K6MLE> ssi: got the 5i25 ordered ... it should arrive Monday ...
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[23:06:28] <Nick001-shop> 7i37ta is the card ssi is using so that should work for me. My machine is a combination of ssi and JT's hardinges. I have a servo for the spindle motor which is why the high supply voltage
[23:07:49] <andypugh> My 8i20s are running at 300V DC, just rectified mains into big caps
[23:08:01] <Nick001-shop> I have to drop the AB servos for the axes drives and run them with just resolver feedback without the tachs.
[23:08:27] <andypugh> It is possible to emulate tachs, it has even been done.
[23:09:09] <Nick001-shop> 8i20 - how do I run brushed motors with it
[23:09:10] <andypugh> In fact, that would be a use for the 7i49 analogue outputs, hook them up to the resolver velocity pin, instand pseudo-tachs
[23:09:36] <Nick001-shop> any docs on this?
[23:09:47] <andypugh> Nick001-shop: Sorry, you can’t run brushed with the 8i20. (well, you probably could with the right 8i20 firmware)
[23:10:35] <andypugh> Actually, you could with the normal firmware, just set the phase angle right, and only wire two phases. But it would be silly :-)
[23:11:27] <andypugh> Nick001-shop: There might be a forum post about generating pseudo-tach signals.
[23:11:49] <andypugh> With different hardware, but the theory is the same
[23:12:48] <Nick001-shop> 7i49 solves the tach problem - how to drive the pico amps that will work with rest of cards
[23:14:52] <ssi> K6MLE: excellent
[23:15:15] <andypugh> You just need a GPIO card on another port, and a 5i20 firmware that has PWM on those channels.
[23:15:36] <K6MLE> I'll know by the end of the day if the problem's been solved ...
[23:16:22] <K6MLE> Then I can 'pretty-up' the bench and get it ready for the production folks ...
[23:17:37] <andypugh> Nick001-shop: 7i29 too spendy for you?
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[23:20:12] <Nick001-shop> not really - if it does the job
[23:20:49] <XXCoder> ohhh https://www.kickstarter.com/projects/shawnpwest/30-second-charging-rechargeable-battery
[23:21:00] <ssi> so I bought this plastic channel that snaps into the slot on extrusion
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[23:21:16] <ssi> it can go one way to act as a cable channel, or the other way to hold something like a lexan sheet
[23:21:29] <ssi> in theory it'll hold 1/8" sheet, but it really doesn't like to :/
[23:21:33] <Nick001-shop> tha'ts what 2 pico amps will cost - will it handle 110VFC?
[23:21:45] <Nick001-shop> VDC
[23:21:58] <ssi> debating if I want to fight with it for thirty windows, or if I should just silicone caulk it all in :P
[23:22:31] <andypugh> Nick001-shop: Talk to PCW. But the 7i29 is 22.5A / 165V
[23:23:09] <XXCoder> immortal AA batteries
[23:23:11] <XXCoder> I need that
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[23:23:50] <Nick001-shop> That would do me - I need 110vdc at 4 amps output fused - 2 drives - X & Z axis
[23:25:55] <Nick001-shop> will any of these card supply a +/ - 10vc to control spindle speed
[23:26:19] <andypugh> 7i49 has 6 +/- 10V channels
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[23:27:15] <andypugh> So, use some as pseudo-tachs, and one to drive the spindle. And 3 to drive some RGB LED mood lighting.
[23:27:26] <ssi> Nick001-shop: do you not have tachs?
[23:27:43] <ssi> or are you just tired of them getting dirty? :P
[23:27:56] <Nick001-shop> that will certainly do -) so I'm at 5i20,7i37ta,7i49 and 7i29 cards to do this hardinge
[23:29:36] <Nick001-shop> I've spentt over 30 years pulling and cleaning those stupid tachs and it's not worth it any more given there are now better ways
[23:29:47] <ssi> what drives are you using?
[23:29:54] <ssi> the stock hiaks?
[23:30:04] <andypugh> Can I gloat? I am dead chuffed with how these parts came out: http://bodgesoc.blogspot.co.uk/2014/07/neracar6.html
[23:30:21] <Nick001-shop> of doing things
[23:31:12] <Nick001-shop> Yes - HiAk's. I keep the one for the spindle bur the axis servos are getting shot
[23:32:39] <ssi> if you're sick of the tachs, why not just get some torque mode drives for them?
[23:33:14] <Nick001-shop> I guess that what the pico amps are
[23:33:47] <Nick001-shop> and they're a lot smaller
[23:33:50] <ssi> andypugh: wow nice work
[23:34:02] <andypugh> Nick001-shop: The 5i20 _might_ not have enough gates for the 7i49. Check with Mesa. The 5i24 is smaller and cheaper.
[23:34:22] <ssi> floorboards look great
[23:34:30] <ssi> I'm pretty sure I have a 5i20 and it's running the 7i49 fine
[23:34:41] <ssi> might be 5i23, not sure offhand
[23:34:49] <PCW> resolver firmware will not fit in a 5I20
[23:34:54] <andypugh> 5i23 definitely works, that is what I have
[23:35:13] <ssi> I must have a 5i23 then :)
[23:35:31] <andypugh> PCW: is 5i24 an option?
[23:35:56] <andypugh> It looks easier to pack
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[23:37:50] <PCW> Eventually but it will take a bit of work to get clocks right because the resolver module uses
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[23:37:51] <PCW> clockmed which is 50 MHz in most spartan 2/3 cards but 100 MHz in spartan 6 (like 5I24)
[23:38:29] <andypugh> So, 5i23 is the smart choice then?
[23:39:40] <PCW> That would l be my choice (since it doesn't involve me patching hm2 source)
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[23:41:14] <Nick001-shop> I guess shopping list has changed 5123 7i37TA 7i49HV 7i29 and hope for the best
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[23:42:04] <PCW> the best solution would be for me to fix the resolver firmware so it read is master clock frequency
[23:42:06] <PCW> and calculates all it timings from that (like SSLBP does) but thats a fair amount if fussy work
[23:42:26] <PCW> of fussy work
[23:43:42] <Nick001-shop> the 7i49HV should work for me
[23:44:17] <Nick001-shop> ssi has the same resolvers as I do
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[23:56:59] <ssi> yep
[23:57:10] <ssi> we're like resolver brothers
[23:57:10] <ssi> :D
[23:57:53] <andypugh> I have a servo that I intend to convert from incemental encoder to resolver. That’s probably unusual.
[23:58:00] <ssi> probably
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