#emc | Logs for 2011-11-01

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[00:00:01] <Danimal_garage|2> sweet, anodizing came out great
[00:00:10] <Danimal_garage|2> i officially quadrupled my anodizing capacity
[00:00:16] <elmo40> skunkKandT: true.
[00:00:22] <elmo40> or a punch :-p
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[00:01:19] <skunkKandT> yep- tap still works (with correct program)
[00:01:53] <Danimal_garage|2> lol
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[00:04:27] <elmo40> must have been Al
[00:04:30] <elmo40> or plastic
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[00:14:09] <skunkKandT> Al
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[00:42:02] <skunkKandT> no matter what I do - I cannot seem to get rid of a .00002" oscolation
[00:42:15] <cradek> is that one count?
[00:42:34] <skunkKandT> one count is .000016ish
[00:42:54] <skunkKandT> I have the deadband set to .00002
[00:43:24] <skunkKandT> so - actually it is .00003ish oscolations
[00:43:41] <skunkKandT> Heh - I really suck at this
[00:44:44] <skunkKandT> period looks like 150us
[00:45:17] <skunkKandT> wait that isn't right
[00:45:40] <skunkKandT> heh - 15ms sounds better
[00:45:47] <cradek> hm gmane is broken
[00:47:05] <skunkKandT> P 2000 D 5 and ff1 is .835
[00:47:10] <cradek> I bet it's just dithering
[00:47:16] <cradek> set deadband to zero and it'll dither one count
[00:47:34] <cradek> then you might be able to slow or stop it by setting your offset pot carefully
[00:47:52] <cradek> have you set up high quality velocity to pid?
[00:48:01] <skunkKandT> yes
[00:48:04] <skunkKandT> on all axis
[00:48:36] <cradek> http://www.mailinglistarchive.com/html/emc-users@lists.sourceforge.net/2010-10/msg00195.html
[00:48:55] <cradek> this isn't the one I was thinking of, guess I've given this advice several times
[00:49:13] <skunkKandT> heh
[00:52:47] <skunkKandT> with deadband at zero it dithers +/- .00003ish which is a few counts
[00:58:10] <skunkKandT> Y axis seems to dither about 11 count
[00:58:38] <skunkKandT> * y axis seems to dither about 1 count.. That one is using the mesa encoder velocity to the amp
[00:59:13] <cradek> I think 1 count dither is normal and nearly unavoidable
[00:59:35] <cradek> you can only slow it down (offset pot again)
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[01:05:23] <skunkKandT> I will have to play with it more when I have more time
[01:08:37] <skunkKandT> I have had some odd facetting on some parts - I think it might be the tuning
[01:10:07] <skunkKandT> maybe
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[01:11:00] <cradek> yeah if it's actually moving that distance...
[01:11:32] <skunkKandT> well - I just measured all the axis - only z has any measurable backlash and that is less than .0001
[01:11:50] <skunkKandT> So - I think anything the servos are doing are transmitted to the part
[01:12:06] <cradek> usually a good thing
[01:12:10] <skunkKandT> yep
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[01:14:25] <skunkKandT> cradek: this was taken this weekend http://imagebin.org/181513
[01:15:17] <skunkKandT> x axis is peaking at around .00003ish
[01:15:41] <cradek> what a weird pattern
[01:15:49] <cradek> I'm sure it means something...
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[01:16:01] <skunkKandT> what though.. ;)
[01:16:18] <skunkKandT> I have to run. bbl
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[01:17:22] <Valen> wow that is odd
[01:19:10] <Valen> I wonder if he has some kind of smoothing or something
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[01:26:59] <jdhNC> anyone have a floating head for engraving or something?
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[01:43:17] <tom3p> cradek ? hello i have same problem insmod rtai_hal http://timeguy.com/cradek-files/emc/lucid-on-asus-p3-1200.errors.txt
[01:43:42] <tom3p> what did you do to fix? (i get it on emc lucid live cd )
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[01:45:17] <tom3p> can i add this to boot of live cd ? .... quiet splash lapic ?
[01:45:40] <tom3p> i turned APIC off in bios
[01:46:09] <skunkworks> I would be tempted to do the virtual tach signal on x and z
[01:46:48] <tom3p> and set no lapic in menu F6 of cd boot ( it doesnt appear in cmd line )
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[01:53:06] <emcrules_w700> how do you ensure both axis in a gantry setup stay in sync with a stepper setup?
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[06:50:40] <Loetmichel> mornin'
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[12:43:43] <IchGucksLive> Hi all can i force the display only to show 2 digits beond the dot ?
[12:44:04] <IchGucksLive> in axis
[12:59:07] <IchGucksLive> no one nows ?
[12:59:38] <IchGucksLive> cradek: ? any idee
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[13:19:08] <skunkworks> so - it looks like y and x are acting the same.. http://imagebin.org/181513
[13:21:14] <skunkworks> My amps are so far off that it is constantly correcting?
[13:25:35] <skunkworks> I think the plot is of it going past a arc quadrant.
[13:25:58] <skunkworks> the saw tooth reverses
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[14:36:41] <pcw_home> Yeah,looks like the smooth part of the trace is from the trajectory (much finer resolution than encoder counts)
[14:36:42] <pcw_home> Then the servo dithering around 0 error
[14:41:03] <skunkworks> It is funny - I should take a picture of one of the parts I cut. I don't know if my 'dithering' is sometimes causing a wierd surface finish or not.
[14:42:07] <syyl> hmm
[14:42:45] <skunkworks> It looks like there is aprox .025" 'flats' on a circle.
[14:42:48] <syyl> a friend told me, that emc was developed/first tested on a big industrial machining centre
[14:42:52] <syyl> is that right?
[14:42:54] <skunkworks> yes
[14:43:12] <skunkworks> a kearney and trecker mill at GM iirc
[14:43:57] <syyl> gm...general motors?
[14:44:01] <skunkworks> yes
[14:44:06] <syyl> interesting :o
[14:44:49] <skunkworks> 4-axis Kearney & Trecker horizontal machining center at General Motors Powertrain in Pontiac, MI. This machine ran a precursor to the full-software EMC which used a hardware motion control board
[14:46:56] <syyl> hmm
[14:47:10] <syyl> those K&T look like nice machines#
[14:47:14] <syyl> pretty sturdy
[14:47:20] <skunkworks> I agree ;)
[14:47:33] <syyl> ah right, you got one, too
[14:47:37] <syyl> *remembers*
[14:47:39] <skunkworks> heh
[14:49:33] <Danimal_garage|2> that was the first emc machine?
[14:49:42] <skunkworks> one of the first
[14:49:47] <Danimal_garage|2> i remember seeing that youtube vid
[14:49:53] <Danimal_garage|2> when was that?
[14:50:10] <skunkworks> youtube vid?
[14:50:14] <skunkworks> I have not seen that.
[14:50:25] <Danimal_garage|2> really?
[14:50:27] <Danimal_garage|2> hmm
[14:51:04] <skunkworks> http://www.isd.mel.nist.gov/documents/proctor/sim/
[14:52:19] <cradek> 3 computers!
[14:53:13] <Danimal_garage|2> early 90's
[14:54:08] <Danimal_garage|2> maybe it was a different machine
[14:54:45] <skunkworks> Danimal_garage|2: if you could find that.... ;)
[14:54:53] <Danimal_garage|2> it was a huge mill, i thought maybe 4 or 5 axis, the whole head rotated, and they made a sphere in the vid
[14:55:29] <Danimal_garage|2> i thought it was seb_kuzminsky's video
[14:56:11] <Danimal_garage|2> skunkworks: i'd have to do it on another pc, this one has been on too long and is locking up
[14:56:30] <skunkworks> heh
[14:57:44] <skunkworks> wow - their emc page is gone http://www.isd.mel.nist.gov/projects/_emc/
[15:01:23] <syyl> hmm
[15:01:41] <syyl> there are a few large scale machines with emc2 control on youtube
[15:02:10] <syyl> uh
[15:02:16] <syyl> that chiron scares me :D
[15:02:17] <syyl> http://www.youtube.com/watch?v=qeQ2rooVrPU&feature=related
[15:05:39] <skunkworks> I love that tool changer
[15:05:49] <skunkworks> looks like a starwars droid
[15:06:00] <syyl> absolute :D
[15:06:52] <pcw_home> looks like that could wack you upside yo head if you weren't careful
[15:06:54] <cradek> does it just turn the spindle slowly and mash the tool holder in there? I think I see drive dogs but there is no way to do orient
[15:07:15] <cradek> the spindle seems to keep turning during the tool change
[15:07:34] <skunkworks> http://www.youtube.com/watch?v=NZQH6XoUsY0&feature=related
[15:08:03] <syyl> if you have a full on crash with that machine
[15:08:08] <syyl> you will loose a lot of tools ;)
[15:12:07] <Loetmichel> syyl: only if you crash so bad taht the spindle is pressed back up ;-)
[15:12:19] <Loetmichel> but nice idea
[15:12:25] <syyl> or hit something high sideways...
[15:12:59] <Loetmichel> let the toolring rotate and use only one changer arm and tahts a compact solution for gantry mills with 1/8" tools ;)
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[15:25:08] <pcw_home> skunkworks: Might be interesting to see what a bit of I term does
[15:27:11] <skunkworks> pcw_home: I will goof around with it soon.
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[15:33:57] <skunkworks> I think the x was P300 I0 and D3. FF1 was a little less than 1.
[15:35:44] <Danimal_garage|2> are those nmbt40 holders in the vid?
[15:37:14] <Danimal_garage|2> i wonder how clean the tool holders stay
[15:38:06] <pcw_home> But if you have .025 flats I dont think thats tuning related (thats +- 500 or so counts)
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[15:43:17] <Guest171> anyone know why i get
[15:43:41] <Guest171> wrong mocca version with 2.2.8
[15:43:54] <Jymmm> Mornin folks
[15:44:04] <Guest171> when package is >=2.4
[15:44:06] <Danimal_garage|2> morning
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[15:57:20] <skunkworks> Guest171: I don't think too many on here are up on mocca. might want to ask on the forum
[15:58:05] <skunkworks> pcw_home: it could be the cutter.... I don't know yet
[15:58:39] <Jymmm> mochachino is about it for me.
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[16:00:24] <skunkworks> what is wierd is it seemes to be consistant all the way around the part.
[16:00:43] <skunkworks> one part cuts fine - the next has the pattern
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[16:03:07] <pcw_home> maybe a feed/ spindle speed/flute thing?
[16:08:10] <skunkworks> at 1500rpm - and 2ipm.. I don't think that comes to any pattern like that..
[16:08:27] <skunkworks> 4 flute
[16:08:49] <skunkworks> (I had slowed the feed down)
[16:09:04] <skunkworks> I will have to do some more experimenting
[16:09:09] <Danimal_garage|2> what size em?
[16:10:43] <Danimal_garage|2> thats pretty slow, could be tool chatter
[16:10:43] <Jymmm> Dumb bank... sent me an email that my address had been changed (hasn't changed in 15+ years). Call them this morning and they tell me they're updating their system.
[16:11:05] <Danimal_garage|2> you havent moved in 15 years?
[16:11:16] <Danimal_garage|2> you live with your mom? lol
[16:11:20] <Jymmm> Danimal_garage|2: PO Box
[16:11:26] <Danimal_garage|2> ah
[16:15:25] <skunkworks> 1 inch
[16:18:21] <Jymmm> skunkworks: That thing likes like some futuristic robotic surgical/torture device
[16:18:50] <skunkworks> heh
[16:19:11] <skunkworks> The cutter is getting dull... SO maybe it is an endmill issue..
[16:19:21] <skunkworks> sure made a perfect pattern though
[16:19:26] <Jymmm> chatter?
[16:19:37] <skunkworks> maybe
[16:19:54] <skunkworks> we should have tried speeding up/ slowing down the spindle
[16:20:10] <Danimal_garage|2> 2ipm?? wow, slow!
[16:20:27] <skunkworks> I was running 4 iirc
[16:20:45] <Jymmm> on what material?
[16:20:50] <skunkworks> AL
[16:20:59] <Jymmm> how thick?
[16:21:08] <skunkworks> about 1 inch deep
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[16:21:31] <Jymmm> you wee taking a 1" thick cut?!
[16:21:38] <Jymmm> were
[16:21:58] <skunkworks> 1 inch deep - about 1/8 thick
[16:22:09] <Jymmm> oh, ok
[16:22:36] <Jymmm> did you feel/hear anything vibrating
[16:23:00] <skunkworks> (making a 2.5 inch shaft into a 2.375 shaft) so 1/16ish
[16:23:04] <skunkworks> not that I could tell
[16:23:14] <Jymmm> (I don't know how loud your K&T is)
[16:23:28] <skunkworks> it is pretty loud with the hydraulic pumps running
[16:23:50] <Jymmm> I figured is wasn't as quiet as a church mouse =)
[16:25:19] <Danimal_garage|2> you should be able to run much faster than that, however i'dd be running a much smaller endmill
[16:26:07] <Danimal_garage|2> like a 1/2" or 3/4" max
[16:26:29] <Danimal_garage|2> i guess the speed depends on how you're holding it though
[16:31:21] <skunkworks> it is held in a big ass chuck
[16:32:06] <skunkworks> you can see it here http://www.electronicsam.com/images/KandT/conversion/decking2.jpg
[16:34:46] <Danimal_garage|2> if the chatter is all the way around, it isn't the part
[16:34:58] <Danimal_garage|2> it's the tool or something in the spindle
[16:35:07] <Danimal_garage|2> or oscilation
[16:35:44] <Danimal_garage|2> it would be in approximately 3 equal spaces (between the jaws) if it were the part
[16:36:12] <Danimal_garage|2> or at least it would be worse in those areas
[16:37:06] <Jymmm> stick a glass of water or whatever on the part and watch the waves
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[16:58:44] <Loetmichel> re @ home
[17:06:11] <Danimal_garage|2> turning a .125" washer into a .05" spacer is always a fun task on the surface grinder
[17:06:38] <Danimal_garage|2> good for a few grey hairs when it gets thin
[17:06:49] <skunkworks> zing?
[17:07:21] <Danimal_garage|2> fortunately no
[17:07:37] <Danimal_garage|2> i was taking .005" a pass for most of it too
[17:07:48] <Danimal_garage|2> .005" DOC
[17:12:19] <Danimal_garage|2> i wore safety glasses for a change lol
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[17:32:45] <skunkworks> probably one of the reasons why I will never get lazic
[17:33:29] <Danimal_garage|2> so you don't have to wear saftey glasses?
[17:33:46] <Danimal_garage|2> do you wear saftey contact lenses?
[17:33:50] <skunkworks> So normally I have some sort of eye protection on.. even if it is just my normal glasses
[17:33:55] <skunkworks> (I don't wear contacts)
[17:34:15] <Danimal_garage|2> when i had a job i used to always wear them, religiously
[17:34:26] <Danimal_garage|2> not sure what happened when i started working for myself
[17:34:52] <Danimal_garage|2> i never drank beer at work before either
[17:35:02] <syyl> grinding washers on the surfacegrinder...
[17:35:04] <syyl> always fun :D
[17:35:09] <Danimal_garage|2> aint it?
[17:35:23] <Danimal_garage|2> i had to take off .075"
[17:36:12] * syyl takes out his calculator
[17:36:22] <syyl> ah, 1,905mm
[17:36:27] <Danimal_garage|2> ha
[17:36:34] <Jymmm> You guys never had Beer Friday's?
[17:36:42] <syyl> thats quite a lot
[17:37:15] <Jymmm> Beer Friday's is almost a requirement in most companies in this area
[17:37:23] <Danimal_garage|2> at a machine shop?
[17:37:31] <syyl> we have a monday beer too..
[17:37:32] <Danimal_garage|2> i've had liquid lunches....
[17:37:33] <Tom_itx> leave it to Ca to come up with that
[17:37:38] <syyl> and a tuesday beer...
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[17:38:25] <Jymmm> Tom_itx: Well, sure. But some of them will sleep under their desks too, so they work/play harder than most.
[17:39:58] <Danimal_garage|2> i'm in detox mode right now
[17:40:06] <Danimal_garage|2> holloween weekend is always rough for me
[17:40:11] <syyl> hihi
[17:40:15] <Jymmm> heh
[17:40:23] <Tom_itx> i used to work with a guy i'd swear was pickled
[17:40:33] <Jymmm> Danimal_garage|2: Candy Detox, gotcha ;)
[17:40:52] <Tom_itx> he always had at least one bottle of vodka in his pant pocket
[17:41:03] <Danimal_garage|2> i set up a booth at one of the local cyclocross races this weekend, i have a fully functioning bar as a display booth for my parts
[17:41:17] <Danimal_garage|2> i had a keg of Stone Pale Ale in there
[17:41:25] <Jymmm> Tom_itx: in a machine shop, that is bad.
[17:41:47] <Tom_itx> he was so used to it he couldn't function otherwise and he was a leadman
[17:42:08] <syyl> we have one guy at a surface grinder, he needs his first beer at 8 in the morning...
[17:42:09] <Jymmm> Tom_itx: did he ever fuabar?
[17:42:35] <Tom_itx> not that i'm aware of until they sent him to rehab and he came back
[17:42:40] <Tom_itx> then he did
[17:42:43] <syyl> before that first beer, its no good idea to talk to him...
[17:42:45] <Jymmm> doh
[17:43:54] <Danimal_garage|2> http://a6.sphotos.ak.fbcdn.net/hphotos-ak-ash4/316310_10150349137544514_792649513_8057173_767347289_n.jpg
[17:44:27] <syyl> Oo
[17:44:31] <Danimal_garage|2> http://a2.sphotos.ak.fbcdn.net/hphotos-ak-snc6/216449_209066475789471_100000583605731_739433_3891461_n.jpg
[17:44:41] <Danimal_garage|2> bar on wheels
[17:44:43] <Danimal_garage|2> :)
[17:44:59] <Jymmm> Danimal_garage|2: donations go to who?
[17:45:00] <syyl> handy to have
[17:46:05] <Danimal_garage|2> the park where the race was held
[17:46:14] <Jymmm> ah, cool.
[17:46:46] <Danimal_garage|2> raised $200 for them
[17:47:01] <Danimal_garage|2> emptied the full size keg
[17:47:27] <Jymmm> Danimal_garage|2: I like your display, but it seems like it's "missing something", but I can't put my finger on it.
[17:48:07] <Jymmm> (other than bar stools)
[17:49:00] <Danimal_garage|2> it's a work in progress
[17:49:07] <Danimal_garage|2> i add a little to it each time
[17:49:38] <Danimal_garage|2> this time i put some big columms to hold up the homebrewed components sign
[17:49:39] <Jymmm> Danimal_garage|2: try adding a Blonde next time maybe?
[17:49:50] <Danimal_garage|2> and made some aluminum shelves for the parts
[17:50:00] <Danimal_garage|2> yea....
[17:50:07] <Danimal_garage|2> almost did that last time
[17:50:23] <syyl> aww, right Jymmm, thats whats missing!
[17:52:13] <Jymmm> Danimal_garage|2: Ok, you have company name up top. What about a real basic description/illustration of what you offer below? Or even a HUGE sprocket they can see from a distance?
[17:52:28] <Danimal_garage|2> cyclists just see beer
[17:52:36] <Danimal_garage|2> i have no problem with traffic
[17:53:33] <Danimal_garage|2> plus it's always the most elaborate display at the shows
[17:53:33] <Jymmm> heh
[17:53:35] <Jymmm> Danimal_garage|2: bitch to move/setup?
[17:53:35] <Danimal_garage|2> kinda
[17:53:35] <Danimal_garage|2> not too bad though
[17:53:35] <Danimal_garage|2> it comes apart in 3 major pieces
[17:53:41] <Danimal_garage|2> it all fits in my van
[17:53:52] <Danimal_garage|2> i loaded/unloaded it myself
[17:54:00] <Jymmm> cool
[17:54:11] <Danimal_garage|2> takes about 30 minutes to set up
[17:55:24] <Jymmm> Danimal_garage|2: I think the dark background where the rings sit needs some attention
[17:55:24] <Danimal_garage|2> well worth it though.... there's always a little media attention at the shows
[17:55:59] <Jymmm> Maybe lil signs that describe what this "section" of items is/are.
[17:56:51] <Jymmm> Danimal_garage|2: Oh, I know what's missing your website/contact info.
[17:57:44] <Jymmm> Danimal_garage|2: You have them coming in, but where do they give you the money???
[17:57:45] <Jymmm> (place an order)
[17:57:45] <Danimal_garage|2> my website
[17:57:47] <Jymmm> Danimal_garage|2: But it's not on your display
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[17:58:33] <Jymmm> Danimal_garage|2: Also, you might add a QR tag too.
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[18:05:26] <Danimal_garage|2> i have business cards on the bar
[18:05:42] <Danimal_garage|2> i have a qr tag in my magazine ads
[18:06:04] <Jymmm> k
[18:06:14] <Danimal_garage|2> i'm going to get some new cards made with a qr tag on them as well
[18:07:03] <Jymmm> Danimal_garage|2: But put your url on the display. I don't know how many times I've ben interested in something, but can't find a way to contact them or get more info.
[18:07:22] <Jymmm> s/ben/been/
[18:07:52] <Danimal_garage|2> business cars on the bar with my website/email/phone number?
[18:08:21] <Tom_itx> from plate aluminum?
[18:08:25] <Tom_itx> annodized
[18:08:28] <Danimal_garage|2> ha]
[18:08:40] <Jymmm> Danimal_garage|2: Tom_itx has a point.
[18:08:40] <Danimal_garage|2> i'm not investing that kind of money into cards
[18:09:02] <Danimal_garage|2> i may have some card sized bottle openers made with my name on them
[18:09:04] <Tom_itx> but how much down time do your machines have?
[18:09:04] <Jymmm> Danimal_garage|2: make a big ass url out of titanium =)
[18:09:10] <Danimal_garage|2> as promotional items
[18:09:12] <Tom_itx> you could take up some of the slack there
[18:09:32] <Tom_itx> send them as 'christmas cards' to a handfull of your best clients
[18:09:35] <Danimal_garage|2> Tom_itx: my goal is to have as much down time as possible
[18:09:42] <Jymmm> lol
[18:09:45] <Danimal_garage|2> so i have time to do other stuff
[18:09:45] <Tom_itx> how's that workin out?
[18:09:50] <Danimal_garage|2> eh
[18:09:57] <Danimal_garage|2> machine's running now...
[18:10:02] <Danimal_garage|2> 2 are actually
[18:10:16] <Jymmm> Tom_itx: He's mucking around on IRC, that takes up all his "free" time ;)
[18:10:50] <Danimal_garage|2> hardly
[18:10:59] <Jymmm> Danimal_garage|2: jk
[18:11:01] <Danimal_garage|2> if i'm on irc, it means my machines are running
[18:11:13] <Danimal_garage|2> :)
[18:12:21] <Tom_itx> Jymmm that's an insult. he wants less time on irc
[18:12:52] <Danimal_garage|2> yea!
[18:13:30] <Danimal_garage|2> Jymmm: don't you work?
[18:13:34] <anonimasu> Danimal_garage|2: get more machines :p keep the irc time low
[18:13:36] <Danimal_garage|2> i always see you on here
[18:13:38] <Jymmm> Tom_itx: IRC Detox Center?
[18:13:56] <Danimal_garage|2> anonimasu: that would mean i'd have to work more
[18:14:09] <Danimal_garage|2> the whole point is avoiding labor
[18:14:23] <anonimasu> automate more :)
[18:15:51] <Danimal_garage|2> ha
[18:15:59] <Danimal_garage|2> easier said than done
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[18:23:06] <skunkworks> can you tell which one has the pattern http://www.electronicsam.com/images/DSC_1087.JPG
[18:23:56] <awallin> you need to turn up the level-of-detail on the left one :)
[18:23:57] <archivist> left
[18:24:06] <awallin> or maybe it's rendered with a crappy gfx card
[18:24:08] <skunkworks> yep. one was run right after the other
[18:24:22] <skunkworks> heh
[18:24:29] <skunkworks> wierd
[18:25:17] <pcw_home> Can you measure the deviation with your probe?
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[18:26:19] <IchGucksLive> Hi all
[18:26:49] <archivist> could you hear any tone/squeal on the left one
[18:29:02] <Danimal_garage|2> Jymmm: do you have Fresh n Easy up there?
[18:29:26] <IchGucksLive> kdenlive released yesterday 0.8.2 whow
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[18:34:02] <skunkworks> archivistI don't think so..
[18:34:14] <skunkworks> pcw_home: I don't know ;)
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[18:35:41] <skunkworks> you can barely feel it.
[18:36:16] <Danimal_garage|2> thats what she said
[18:39:20] <skunkworks> jeepers
[18:41:34] <archivist> skunkworks, it could be a critical speed of the cutter compared to surface speed too
[18:42:07] <Danimal_garage|2> are you running carbide or hss?
[18:42:51] <skunkworks> it did it at 1500rpm 4ipm and 2ipm
[18:42:55] <Jymmm> Danimal_garage|2: What's that?
[18:43:05] <Danimal_garage|2> Jymmm: they're types of metal
[18:43:27] <Jymmm> Danimal_garage|2: "Fresh n Easy" are types of metals???
[18:43:44] <Danimal_garage|2> skunkworks: 1/2" carbide endmill, 4000rpm, 30ipm
[18:43:53] <Danimal_garage|2> ah, it's a grocery store
[18:44:51] <Danimal_garage|2> or higher if your spindle can do it
[18:45:07] <skunkworks> our spindle is maxed out at 3000rpm
[18:45:12] <Jymmm> Danimal_garage|2: Ah, no. We have Safeway, Luckys, FoodMax, CVS, Walgreens, Rite Aid, and some "green" grocery chain
[18:45:38] <skunkworks> it is old.. HSM was not a buzz word back then
[18:46:09] <Danimal_garage|2> skunkworks: 3000rpm and 25ipm
[18:46:32] <Danimal_garage|2> 2 or 3 flute
[18:47:29] <Danimal_garage|2> i was doing .3" DOC slotting at 35ipm, 4krpm on my little mill
[18:47:38] <Danimal_garage|2> 1/2" 2 flute carbide
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[18:56:15] <IchGucksLive> is it posible to get axis only showing 2 dec digits
[18:56:40] <IchGucksLive> my education mashines dont neet the 3rd digit
[18:56:45] <Danimal_garage|2> i think so
[18:57:31] <Danimal_garage|2> forgot how, but i remember seeing it in the manual somewhere
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[19:03:51] <cradek> it shows 4 in inches, 3 in mm. it is not configurable except by changing the program.
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[20:00:01] <IchGucksLive> cradek: Thanks
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[20:10:48] <Danimal_garage|2> hmm odd i thought it was. oh well
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[21:21:02] <mrsun> any recomendations on how to cut up a cast iron plate that is like 400x400mm and thickest something like 50mm and thinnest maybe 20 or 25mm ...
[21:21:17] <mrsun> without wasting like 200$ on cutting wheels for the grinder :p
[21:21:53] <Danimal_garage|2> band saw?
[21:22:02] <Danimal_garage|2> cast iron cuts pretty good on the band saw
[21:22:48] <mrsun> it does? :) goodie as i might have access to one if they are nice to me :P
[21:23:23] <Danimal_garage|2> i have cut a lot of it, about 12"x12", 1.5" thick into 6"x6" squares
[21:23:58] <mrsun> found a good plate to make myself some pieces for scraping on =) like flat surfaces, prism etc if i just cut it up to good pieces =)
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[21:30:39] <mrsun> hmm i wonder if its possible to just change blade in the bandsaw for wood to cut metall :P
[21:30:44] <mrsun> if its stirdy enough
[21:31:04] <syyl> if you can get the speed down?
[21:31:19] <mrsun> ahh true =)
[21:32:03] <syyl> but cast iron cuts also very well with an abrasive disc
[21:32:12] <syyl> if there is no other option
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[21:35:14] <mrsun> i guess but its harder to control the angle etc with them, and i guess that plate would eat ALOT of disks :P
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[21:36:13] <mrsun> i guess but its harder to control the angle etc with them, and i guess that plate would eat ALOT of disks :P
[21:36:20] <syyl> of course its only a rough cut
[21:47:46] <mrsun> is it possible to use a diamond disk cutter for cast iron ?
[21:47:53] <mrsun> http://www.youtube.com/watch?v=9fS2B3A-FLE
[21:49:31] <mrsun> 2 x Professional universal diamond cutting discs
[21:49:31] <mrsun> Cut concrete, masonry, brick, granite, cast iron, pipe and metal
[21:49:38] <mrsun> hmm looks like it would be possible :P
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[21:51:54] <Jymmm> On my N2 tank regulator, it has a 0-40L/m gauge. Is there some correlation between a pressure and volume gauge by chance?
[21:51:59] <mrsun> quite expensive to destroy tho :P
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[22:02:39] <syyl> i would go for a big angle grinder anyway ;)
[22:02:55] <syyl> biggest you can get, then go for it
[22:03:12] <robin_sz> two stroke ;)
[22:03:23] <syyl> perfect
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[22:04:22] <robin_sz> unless ...
[22:04:29] <robin_sz> you can get 4 strok angle grinders?
[22:05:52] <syyl> you could also use a shaped charge...
[22:06:22] <andypugh> You can get 2-stroke ones. My dad has two.
[22:07:01] <robin_sz> oh plenty of 2 smoke ones
[22:07:25] <robin_sz> Stihl do a 4 stroke power unit, but not on their big cut off saws sadly
[22:08:30] <syyl> time to go to bed..
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[22:09:35] <andypugh> Why would you want a 4-stroke one?
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[22:11:56] <robin_sz> what , seriously why?
[22:12:31] <robin_sz> quieter, lower fuel consumption
[22:12:51] <andypugh> Les performance, less fun...
[22:13:09] <FinboySlick> bolt a handle to a hayabusa engine?
[22:13:23] <robin_sz> I saw a chevy V8 chainsaw
[22:13:37] <andypugh> Retrofit a CB100 engine to a Stihl-saw :-)
[22:14:07] <andypugh> An advantage of a 2-stroke in the application is that it is easier to make it work upside-down.
[22:14:43] <FinboySlick> Important that when you're wearing a leather mask and chasing girls.
[22:14:52] <robin_sz> http://www.youtube.com/watch?v=E9x8rBKC4BE
[22:18:28] <Loetmichel> andypugh: hmmm
[22:19:01] <Loetmichel> dry sump oiling, injection instead of carburetor, bingo ;-)
[22:19:04] <FinboySlick> That made me think of Red Green.
[22:20:30] <PCW> Andy: I couldn't get your patch to apply to 2.5
[22:23:43] <andypugh> Odd.
[22:23:56] <andypugh> Anyway, I have done more since.
[22:24:44] <andypugh> I have bidirectional pins now. I reckon that it isn't the driver's job to do anything with them, just pass them through for HAL components to read and write to.
[22:25:30] <andypugh> There is no way to avoid the write (that I can think of)
[22:26:08] <PCW> Something about patch formatting...
[22:26:10] <PCW> Ive also played around a little with SSLBP V29
[22:26:11] <PCW> No that has to be handled by the remote somehow
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[22:26:57] <andypugh> But typically the IO card end would be looking for a change of value rather than just a write anyway, I think? (as the pins all round it in the same buffer are going to set off the "new data" flags?
[22:28:25] <PCW> The secret with startup error reporting (now that I understand it better)
[22:28:26] <PCW> is to do the setup start, login in devices, and then fail (with error print)
[22:28:28] <PCW> if a normal start of found remotes fails at this point
[22:28:28] <andypugh> I guess if the patch wouldn't take you haven't been able to try it with the encoder
[22:28:47] <andypugh> Yes, that's my current plan.
[22:29:17] <andypugh> I am wondering if 8i20s with amp-enable not set should mask their bit in the "DoIt"?
[22:29:27] <PCW> No not yet. We could hack a 7i69 to add encoder in on a few pins
[22:30:18] <andypugh> That is something for a separate patch, though.
[22:31:25] <andypugh> Currently I have managed to modify the driver so that it dumps Ubuntu out to the BSOD, so I think I ought to fix that before pushing it.
[22:31:49] <PCW> Thats not good
[22:32:37] <andypugh> It's likely to be a kfree of an already-freed variable.
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[22:33:11] <PCW> Yeah stack balance is a sure crash
[22:33:13] <PCW> We have the 7I77 working but I think the 7I77 needs the array support
[22:34:08] <andypugh> How does a boolean array differ from a set of bits?
[22:34:32] <andypugh> Or is it non-boolean, and too many to fit into the firmware descriptions?
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[22:35:15] <PCW> Beg your pardon it does not require arrays
[22:36:09] <PCW> boolean is a flag (but may be 1,2,3,32 bits long)
[22:36:39] <PCW> so a boolean represents a single bit (non-zero=true)
[22:36:56] <PCW> but can have any bit length
[22:37:08] <andypugh> OK. I am curious why a flag needs multiple bits (but it is coded and ready to test anyway)
[22:39:00] <PCW> Basicall since the serial interfaces smallest data element is a byte, several independent flags are represented as boolean flags
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[22:39:40] <andypugh> OK.
[22:40:03] <andypugh> I guess that boolean-write should always set all bits?
[22:40:38] <PCW> Yeah we always return -1 for true
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[22:43:29] <PCW> mainly the array types allow better naming (so instead of analog0, analog1, analog2 names in the PTOC we just have Analog and let the driver enumerate with dotN like normal HAL pins)
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[22:52:16] <PCW> The good thing is if we consolidate some of the byte booleans into bits for communication overhead reduction, it should be transparent at the HAL level
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[22:56:04] <PCW> bit booleans I should have said
[22:56:35] <PCW> instead of bits
[22:56:41] <andypugh> Yes, the HAL pins should never know
[22:57:34] <PCW> Only if we mess up and change names
[23:01:41] <PCW> Curious to see what the driver thinks of the 7I77
[23:01:43] <PCW> (I presume the 7I73 would cause a bail because of the unhandled stream data)
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[23:03:46] <andypugh> Yes. I am concerned about how we will be able to handle that
[23:03:55] <andypugh> (At the HAL end)
[23:03:58] <PCW> but we can make a temporary firmware mod with no stream data to test the encoder
[23:04:36] <PCW> I think all that can be done for now is pass it as a u32 up or down
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[23:05:07] <PCW> stream data will always require a comp to deal with it
[23:06:04] <PCW> for example the LCD data stream is just ASCII (but with nulls as fillers if nothing is to be sent)
[23:07:30] <PCW> then driver should not do anything basically but pass the buck
[23:07:38] <PCW> the
[23:08:34] <andypugh> I guess 4 bytes every mS would be enough bandwidth?
[23:08:40] <PCW> too bad that HAL does not have chars or bytes but thats just a very minor efficiency nit
[23:09:10] <PCW> well actually only a byte per ms unless we change it
[23:09:20] <PCW> (like 9600 baud)
[23:09:59] <andypugh> That's fine then, no need for any extra interfaces (like the 7i65 needed)
[23:10:55] <PCW> no I think it should be up to the comp to deal with
[23:11:48] <andypugh> Which way does the data flow?
[23:12:10] <andypugh> Sorry, daft question.
[23:12:14] <andypugh> Ignore that
[23:12:18] <PCW> thats like the other data types (the 2 MSBs in the data direction)
[23:12:54] <PCW> currently all we have like this is LCD out and KB in
[23:12:56] <andypugh> So, people would be writing their own comp to send data to the LCD?
[23:13:43] <andypugh> I guess it would be easy to write a sample one (X, Y, Z posiitons, say)
[23:13:46] <PCW> Yes it should be pretty easy (we emulate a ADM3!)
[23:14:52] <PCW> so ASCII text CR,LF, cursor addressing etc
[23:16:37] <PCW> KB sends keycode (deltas) plus all-up or some-down codes
[23:17:22] <andypugh> Sounds fun.
[23:18:47] <PCW> But we still have KB work and wont support N key rollover for a while (if ever)
[23:20:24] <PCW> Needs diodes in the scanner for nkey rollover
[23:20:59] <andypugh> 7i73 shouldn't actually bail, I just print a warning for unhandled datatypes.
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[23:21:54] <PCW> OK, I will try it
[23:22:40] <andypugh> Well, you need the patch to work first ;-)
[23:23:00] <PCW> Details details...
[23:49:38] <anonimasu> PCW: does the 7i66 work with emc?
[23:49:57] <anonimasu> 7i66-7 and can you read the analog values=
[23:49:59] <anonimasu> ?
[23:50:01] <anonimasu> -8
[23:51:22] <andypugh> It ought to,
[23:51:23] <PCW> Andys work in progress is needed...
[23:52:26] <PCW> Note that the analog ins are not very good (8 bits and 33V full scale)
[23:52:32] <anonimasu> it looks like a better option then a 0.5mm x 16 cable all around the machine
[23:52:55] <anonimasu> I see, so another option might be better for spindle/feed override
[23:53:02] <PCW> basically a side effect of how wer read the digital inputs (as analog)
[23:53:23] <andypugh> The driver is now set to bomb-out if it gets an error. The problem is that 7i76 gives an LBPCOM error every time...
[23:54:53] <andypugh> (This is in the setup mode)
[23:55:07] <PCW> well for that it might be OK (better than .6% resolution with 24V)
[23:55:51] <anonimasu> what about 0-5v?
[23:56:22] <anonimasu> tho 24v is nicely possible.
[23:56:25] <PCW> not good
[23:56:53] <anonimasu> i'll go that way then, dosent make a difference really
[23:56:53] <andypugh> 0.13V resolution.
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[23:57:13] <andypugh> about 40 counts at 5V
[23:58:12] <anonimasu> 0-150% seems doable with decent enough precision
[23:58:23] <anonimasu> at 1% increments