Back
[00:00:10] <pfred1> tjb1 I know humanity has finally arrived because now we have remote controlled fire
[00:00:37] <pfred1> that is an awesome movie too if anyone hasn't caught it yet Quest for Fire
[00:00:38] <tjb1> The remote actually has a themostat in it too ;)
[00:00:56] <pfred1> it really puts stuff into perspective for ya
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[00:03:51] <pfred1> http://www.imdb.com/title/tt0082484/
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[00:16:27] <RoyOnWheels> any plasma cnc operator around?
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[00:21:52] <andypugh> RoyOnWheels: What's the question? (I don't have a Plasma, but the question might be generic enough)
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[00:28:59] <andypugh> RoyOnWheels: One of the guys with a Plasma headed off to cook, he'll probbaly be back.
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[00:33:38] <tjb1> I have plasma :P
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[00:44:05] <tjb1> RoyOnWheels: ?
[00:48:34] <tjb1> Asks a question then leaves?
[00:53:39] <RoyOnWheels> what are plasma cutters tolerance now?
[00:54:08] <RoyOnWheels> cutting aluminum seems possible with plasma
[00:55:47] <andypugh> halrun
[00:55:49] <andypugh> Doh
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[00:57:00] <RoyOnWheels> .1mm .05?
[00:57:33] <tjb1> Air plasma has pretty good taper
[00:57:43] <tjb1> .02 per side on .250" thick parts
[00:58:06] <tjb1> but I can cut probably within .010
[01:00:59] <tjb1> Plasma will cut anything conductive
[01:01:00] <andypugh> Unit mismatch here I think.
[01:01:37] <RoyOnWheels> yeah working in mm
[01:02:16] <tjb1> I get .5mm taper per side on 6.35mm thick parts
[01:02:34] <andypugh> I would guess that job-to-job with a CNC the accuracy is limited by the machine, not the process.
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[01:03:18] <tjb1> My plasma can probably hold within .25mm
[01:03:29] <tjb1> or better once I get it properly set up
[01:05:15] <RoyOnWheels> looking at pretty thin alu, .i think16-.19, looking at router too
[01:05:17] <tjb1> HiDef systems can cut with minimal taper but good luck finding someone with one of those
[01:05:31] <RoyOnWheels> can't afford waterjet unit
[01:05:33] <tjb1> .16-.19mm or 16-19 gauge?
[01:06:33] <andypugh> Laser?
[01:07:20] <RoyOnWheels> had to check, yeah mm maybe even .25mm
[01:07:37] <tjb1> Thats almost aluminum foil lol
[01:07:50] <RoyOnWheels> er
[01:08:04] <tjb1> maybe not but that is thin :P
[01:08:16] <RoyOnWheels> sorry, 1/4 inch thinkness
[01:08:33] <RoyOnWheels> fail on conversion
[01:09:00] <RoyOnWheels> 6mm ish
[01:09:20] <RoyOnWheels> andypugh yeah laser cosf?
[01:09:57] <RoyOnWheels> we'll probably pay a company for now
[01:10:33] <tjb1> Any plasma cutter is going to have significant taper on something that thick
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[01:12:45] <RoyOnWheels> k
[01:13:39] <RoyOnWheels> and router probably slower then waterjet,laser?
[01:13:43] <tjb1> The higher amperage systems should do it with less, hidef will cut with almost no taper too
[01:14:06] <tjb1> Laser than can cut 1/4 alum is going to be a very large laser
[01:14:21] <tjb1> But laser, waterjet, and plasma are the fastest
[01:14:55] <andypugh> Router will be most accurate, but very very much slower. (and more wasteful)
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[01:15:18] <tjb1> Might be the cheapest out of laser and waterjet
[01:15:59] <tjb1> My machine will cut .250 alum at 80ipm
[01:16:11] <tjb1> 100ipm max.
[01:16:36] <tjb1> 2050mm to 2540mm a min
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[01:18:55] <tjb1> Anyone in here dual booting windows/linuxcnc?
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[01:24:18] <micges> tjb1: yes
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[02:15:03] <tjb1> Oh my.
http://www.youtube.com/watch?v=nebJ59TcYlQ&feature=youtu.be
[02:23:04] <RoyOnWheels> cool eh
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[02:27:44] <tjb1> Hey postaL
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[02:27:51] <postaL> hey bud
[02:28:05] <tjb1> No Halo4 until next tuesday at least
[02:28:21] <postaL> at least. i gots me a new baby boy :)
[02:28:52] <tjb1> Congratulations!
[02:28:53] <Jymmm> amazon.com ?
[02:29:09] <tjb1> ebay ;)
[02:29:47] <Jymmm> Man, shipping a kid musta been expensive. Just imagine trying to pack the sucker i the box
[02:30:16] <archivist> make it on the cnc
[02:30:49] <Jymmm> he said boy, not Guvenator
[02:33:03] <Jymmm> are the cutters on a pipe threader adjustable? I need to thread the outside of a 2" ABS pipe
[02:33:49] <archivist> some yes some no
[02:34:23] <Jymmm> Ok, thanks. I'll keep my eyes out then.
[02:34:50] <postaL> lol
[02:34:51] <postaL> thanks guys :)
[02:34:52] <archivist> but abs really wants glue
[02:35:08] <tjb1> Lowes has a nice setup where one die will do like .750 up to 1.250
[02:35:16] <tjb1> maybe more
[02:35:49] <Jymmm> archivist: It's not for attachement, but grooves to wind a loading coil and use it as the core.
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[02:37:45] <Jymmm> archivist: kinda like this
http://ad5yu.files.wordpress.com/2007/01/img_4837.JPG
[02:40:01] <archivist> just get some strips for a wiring pen and glue on
http://info.ee.surrey.ac.uk/Workshop/advice/grotwire/usingPen.html
[02:42:10] <archivist> http://www.rrunner.co.uk/strips/strips.htm
[02:42:56] <Jymmm> Never heard of them
[02:43:05] <Jymmm> http://w1jks.com/img/ad5x_vert/loading_coil.jpg
[02:44:06] <tjb1> texas bug catcher huh
[02:44:37] <Jymmm> 16ft vertical fishtenna
[02:44:56] <tjb1> What is the purpose of the pipe threads? To wind the coil in?
[02:46:16] <Jymmm> tjb1:
http://i46.tinypic.com/2rc7cb4.jpg
[02:46:39] <Jymmm> tjb1: in front of the red pipe, but that one is ceramic
[02:46:55] <Jymmm> he pulled if from some old gear.
[02:47:07] <tjb1> Are you just using pipe thread because thats common for 2inch?
[02:47:14] <Jymmm> I want to do 2", 4" , and 6"
[02:47:21] <Jymmm> yeah
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[02:47:33] <Jymmm> If I had a lathe, then no biggy
[02:48:38] <tjb1> http://www.autobodytoolmart.com/otc-universal-outside-thread-chaser-7402-p-15003.aspx?gclid=CPmB4IPI4bMCFU-d4AodYCwA1Q
[02:48:39] <Jymmm> http://www.powerplaceinc.com/pipe_threader.gif
[02:48:42] <tjb1> Would something like that work?
[02:49:41] <Jymmm> I'm not sure, I dont think so because it has no guide for the thread itself.
[02:50:18] <Jymmm> I might have to make a ghetto lathe
[02:50:27] <tjb1> I imagine if you tighted it a bit it would cut threads into pvc
[02:50:32] <tjb1> tightened...
[02:51:02] <Jymmm> oh it'll vut them no problem, but it might /// / // / / instead of ////////////
[02:51:15] <Jymmm> cut
[02:51:32] <Jymmm> or even ||||///// ||////
[02:51:51] <tjb1> I see now…no way to advance itself
[02:52:00] <Jymmm> right
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[02:52:06] <Jymmm> and consistantly
[02:52:26] <tjb1> I dont have any other ideas, sorry
[02:52:42] <Jymmm> It's frickin ABS, it wouldn't take much and doens't need alot of force either.
[02:52:57] <tjb1> how critical is the lead?
[02:53:37] <Jymmm> it's not. just consistant for when electrically taping the coil
[02:54:43] <Jymmm> but I can control that by adjusting the speed at which the cutter travels
[02:54:46] <tjb1> You could go to lowes and maybe they will cut it for you
[02:55:23] <tjb1> or maybe get a 2inch pipe coupler, cut it where the threads end and screw the pipe in?
[02:56:10] <Jymmm> I'm really just cutting grooves for the wire to follow is all, not really "threads"
[02:56:17] <tjb1> well 1 1/2 pipe has a 1.9 outside diameter
[02:56:27] <Jymmm> I need 4" diameter too
[02:56:53] <tjb1> 4" has 4.5 outside
[02:56:57] <tjb1> 3 has 3.5
[02:57:18] <Jymmm> yeah, that's no biggy.
[02:57:19] <tjb1> 1 1/2 pvc has a 1.9 outside diameter
[02:57:33] <tjb1> you could probably screw that right into a pipe coupler to get the threads on
[02:58:18] <Jymmm> I have a couple of motors around here I'll play with
[02:58:56] <tjb1> http://www.fastenal.com/web/products/detail.ex?sku=0467313
[02:59:01] <tjb1> easy peasy
[03:00:04] <Jymmm> Only $164
http://www.fastenal.com/web/products/detail.ex?sku=0467283
[03:00:36] <tjb1> probably $5 at lowes
[03:00:42] <tjb1> I couldnt find it on the website
[03:01:16] <tjb1> http://www.fastenal.com/web/products/detail.ex?sku=0467317
[03:01:18] <tjb1> only 97
[03:03:05] <tjb1> harbor freight has a 3/8 to 2 inch pipe threader
[03:05:21] <tjb1> Northern has this but it only goes to 4" and its $1,130 -
http://www.northerntool.com/shop/tools/product_200317188_200317188
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[04:21:50] <maxbots> Hey folks, I have a a question re: plasma cutting
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[04:22:14] <maxbots> RoyOnWheels was in here earlier, and this is related to what he was asking
[04:22:52] <maxbots> I have seen the edge finish on plasma cut aluminum, and not been blown away... But I can't say that I have ever seen the edges on plasma cut steel
[04:23:01] <maxbots> Are they smooth?
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[05:30:43] <ve7it> Jymmm, wind 2 wires together on the pipe... then unwind 1 wire... apply varnish
[05:42:08] <Jymmm> ve7it: Issue is that I need to TAP into the coils to tune different bands
[05:42:25] <Jymmm> ve7it: 10-180m
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[06:20:07] <Loetmichel> mornin'
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[07:04:10] <roh> morning. *yawn*
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[07:51:22] <DJ9DJ> moin
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[09:18:14] <mrsun> http://i.imgur.com/K9RKt.jpg?1 !
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[09:21:37] <automata_> hi
[09:22:15] <automata_> In HAL I want to change a parameter based on a signal. is that possible?
[09:22:52] <automata_> From my understanding that can only be done for a pin and not a paramter.
[09:23:02] <automata_> So is there any way to achieve that?
[09:34:03] <automata_> the hal comp constant can be used to set a pin based on the value of a param
[09:34:03] <automata_> I want to do the reverse, use a pin to set the value of a param
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[10:59:24] <mrsun> http://www.ctctools.biz/servlet/the-132/50-MM-INDEXABLE-FACE/Detail does these kinds of mills turn a 90 degree angle?
[11:02:21] <cncbasher> mrsun: no
[11:03:04] <mrsun> cncbasher, says they are used for slotting also, shouldnt that cut a 90 degree angle on the edges? :)
[11:03:42] <mazafaka> mrsun: don't you know Wikipedia has a page describing manufacturers' stadards on the type of the tip of screwdrivers?
[11:03:51] <cncbasher> looking at the picture it seems to have an outward angle to it
[11:04:08] <cncbasher> realy need a better picture to be sure
[11:04:14] <mrsun> http://www.ctcengineering.hk/CTC%20Tools/Images/Product%20Photos/D42_il1.jpg
[11:04:20] <cncbasher> or the drawing etc
[11:04:42] <cncbasher> arh thats better
[11:05:01] <mrsun> looks like its a 90 degree angle
[11:05:03] <cncbasher> yes it does do a right angle
[11:05:07] <mazafaka> mrsun:
http://en.wikipedia.org/wiki/List_of_screw_drives
[11:05:44] <mrsun> (want to face off the end of some tubing that is welded shut in the end and its the closest i have that has greater cutting area then shank
[11:05:45] <mazafaka> we had mitsubishi tools for WFL M35
[11:06:39] <mrsun> and i cant stand the tubing up
[11:06:45] <mrsun> so need to cut it on the side of the cutter
[11:09:02] <cncbasher> just run a grinder over it
[11:09:30] <cncbasher> seems over kill to use a mill
[11:10:44] <cncbasher> we use 60grit sanding disks to do a similar job
[11:11:08] <mrsun> cncbasher, i need it to be a perfect 90 degree angle to the side of the tubing
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[11:11:16] <mrsun> its not for welding later, its for bolting
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[11:13:06] <cncbasher> no matter what you use your going to get flex of the cutter doing that type of job
[11:13:14] <cncbasher> what is the dia of the pipe
[11:15:43] <mrsun> 50mm dia
[11:15:57] <mrsun> face mill that i will use for cutting on the side insted :P
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[11:16:08] <mrsun> tho i need a bigger mill to do it in :/
[11:16:20] <mrsun> my little X1 will surley make very bad stuff of it :P
[11:16:39] <mrsun> best would have been if i buy a Mk2 -> Mk3 converter and throw it all up in the lathe in some way
[11:16:57] <mrsun> then i can cut as the cutter was intended =)
[11:17:09] <cncbasher> yes lathe would be much better
[11:17:29] <mrsun> but my lathe is small, and standing so i cant get the tubing in there ... i think :(/
[11:17:33] <mrsun> and no T slot table =)
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[11:21:47] <archivist> a square and a file
[11:22:15] <mrsun> archivist, hehe =)
[11:22:36] <archivist> used that method many times
[11:22:41] <cncbasher> was that a needle file
[11:22:49] <archivist> hell no
[11:23:26] <archivist> but when doing clock parts, yes
[11:23:35] <mrsun> thing is with a real rigging on something i can make them the same length, got two tubes that need to be the same length .. sure i can shim it later but i rather have as little shimming as possible =)
[11:24:02] <archivist> clamp together and file
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[12:05:05] <automata__> In HAL I want to change a parameter based on a signal. is that possible?
[12:05:13] <automata__> From my understanding that can only be done for a pin and not a paramter.
[12:05:22] <automata__> So is there any way to achieve that?
[12:05:29] <automata__> the hal comp constant can be used to set a pin based on the value of a param
[12:05:35] <automata__> I want to do the reverse, use a pin to set the value of a param
[12:05:58] <automata__> is there some way to do that?
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[13:18:40] <mrsun> reasons for a bandsaw to not cut straight? dull blade ?
[13:18:50] <mrsun> its like 3 - 4 mm shorter in the lower end then the upper end :P
[13:19:52] <archivist> dull blade and not tight enough
[13:19:56] <jthornton> loose guide blocks, guide blocks not aligned so back of blade is in the center of the cut, chinese band saw, damaged teeth
[13:25:29] <mrsun> american bandsaw =)
[13:25:46] <mrsun> kinda annoying realy, as everything is inch on it :P
[13:26:14] <jthornton> adjust the guide blocks
[13:26:55] <mrsun> they are so i can stop them with my fingers when the blade is running
[13:26:56] <mrsun> the bearings
[13:27:05] <mrsun> other then that i cant find any ajustment on them ?
[13:28:03] <mrsun> trying to join the yahoo group but i need confirmation from the group owner/owners
[13:28:07] <jthornton> is the blade parallel to the cut or tilted a bit
[13:29:01] <jthornton> cut a test piece until the blade is flush with the top and see if the blade is centered up in the cut or off to one side
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[14:18:48] <mrsun> heh deep grooves in the upper guide bearings and they are rattly like hell .. gonna try and switch them out and see whats hangin
[14:19:02] <mrsun> looks like they never have switched themout, they have a huge radius on the sides of them even
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[14:22:51] <jthornton> worn out bearings can be the problem
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[15:47:03] <IchGuckLive> hi all someone kows a lives stream of the thangsgiving parade
[15:47:36] <IchGuckLive> Happy thanksgiving
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[16:02:01] <rizo> i have a linear motor sine servo driver which requires two signals (sine and cosine) for current control for each motor winding. Have anybody ever try to drive such servo with emc?
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[16:10:47] <mrsun> replaced all bearings and went from over 5mm error to like 1mm error
[16:11:09] <mrsun> and on a side note the excentric bolt for one of the bearings was lose .... but the bearings were worn like hell
[16:11:23] <JT-Shop> sounds like your making progress
[16:11:49] <mrsun> now i dont know if the blade is dull, doesnt feel dull and no teeth missing so
[16:12:03] <mrsun> and cuts tubing like butter
[16:12:25] <mrsun> the 1mm error isnt that bad, its over 50mm so and for welding its not a problem :P
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[16:16:03] <mrsun> just start with tacking down the right side first and i should be aight :P
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[16:20:40] <IchGuckLive> i got the lifestream to the parade ->
http://www.stream2watch.me/live-tv/nbc-live-stream
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[16:20:52] <jdh> what parade?
[16:21:02] <IchGuckLive> Macys
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[16:21:24] <jdh> oh, that should be banned for wasting helium.
[16:21:38] <IchGuckLive> O.O
[16:21:58] <IchGuckLive> 50mio viewers world wide
[16:23:10] <IchGuckLive> ada all over in this stream
[16:23:19] <IchGuckLive> they changed trhe route
[16:23:40] <IchGuckLive> no more Eartcam timesqare
[16:24:01] <jdh> I have to pay $140 for 300ft^3 of HP helium now. It was $60ish a year or so ago.
[16:24:27] <IchGuckLive> why do you need helium
[16:24:33] <jdh> diving
[16:24:42] <cncbasher> jdh: £130 + tax over here
[16:24:46] <IchGuckLive> ah thats clean stuff
[16:24:50] <jdh> (~8500l)
[16:26:00] <IchGuckLive> ADS ADS ADS what a crap
[16:26:22] <mrsun> http://www.mini-lathe.com/Bandsaw/jfear_mod2.jpg that is nice!
[16:26:29] <mrsun> great idea =)
[16:26:43] <jdh> I have that saw!
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[16:30:54] <IchGuckLive> is it cold in NY
[16:31:11] <syyl> i think that saw is in "a few" shops all over the world ;)
[16:31:14] <syyl> i got the same
[16:32:49] <mrsun> missing the vice portion on mine so i have fabricated out of some angle iron, need to redo it and add a screw hole like that, that is golden =)
[16:32:54] <IchGuckLive> im off By
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[16:33:32] <L84Supper> IchGuckLive: not really, ~12 deg C
[16:33:33] <syyl> i throw some scap metal in if i have to chuck something short in the saws vice ;)
[16:34:24] <mrsun> syyl, yeah thats what i do now also of same dimension, but sometimes its hard to get =)
[16:34:39] <syyl> stack it up ;)
[16:34:56] <mrsun> yeah i could use my blocks for the sinebar ;P
[16:35:02] <mrsun> just to put them to real good use
[16:35:48] <syyl> hrhr
[16:36:00] <syyl> step block from the clamping kit are good
[16:36:05] <syyl> or screw jacks
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[17:54:40] <IchGuckLive> hi all B)
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[18:04:20] <IchGuckLive> haooe turkey to you all
[18:04:32] <IchGuckLive> the macy's parade has been wonderfull
[18:05:03] <IchGuckLive> and so fast within 1min delay at 3hr thats what only the usa can delever
[18:12:47] <mevon> dont think what your country can do for you, think what you can do for your country
[18:12:52] <mevon> :P
[18:13:30] <IchGuckLive> mevon: how went the homing
[18:13:56] <mevon> its a little of a mess :P
[18:14:02] <mevon> less*
[18:14:43] <mevon> but getting there, I still had some troubles with the servo_thread being to fast and too restrictive over f-error
[18:14:53] <mevon> now seems ok
[18:15:23] <mevon> I still would like to reduce the amount of step ahead when moving manually
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[18:16:39] <IchGuckLive> it works thats the main goal
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[18:17:22] <mevon> but overall, on small moves I get f-error smaller then 0.1 mill, on a long hold of continuous jogging, I get a time pressed proportional f-error that gets to maybe 0.500 mill on 10 sec holding
[18:17:48] <mevon> IchGuckLive, yes its moving and Im getting more satisfied
[18:18:48] <IchGuckLive> then you are to fast give me some numbers i will calculate
[18:18:50] <mevon> it really was the f-error that was stopping it from moving soI will need more time to recheck homings
[18:19:03] <IchGuckLive> Baseperiod or better what is your worst latency
[18:19:21] <IchGuckLive> the driverstage is Gecko leadshine ...
[18:19:47] <mevon> IchGuckLive, servo period and base period is 1 ms
[18:19:53] <mevon> 1000000
[18:20:12] <IchGuckLive> is this a Servo mashine no its a stepper
[18:20:19] <mevon> indeed
[18:20:22] <cncbasher> mevon: whats your setgen maxaccel in your hal file ?
[18:20:36] <mevon> ahhh
[18:20:39] <mevon> genius
[18:20:44] <mevon> 30 :S
[18:20:59] <IchGuckLive> mevon latency
[18:21:05] <mevon> ill lower that
[18:21:10] <IchGuckLive> and driver then i calculate
[18:21:16] <cncbasher> and the maxaccel in your ini file
[18:22:30] <mevon> cncbasher, I dont see it, I think Im not setting it
[18:22:54] <IchGuckLive> cncbasher: he startet from a Sim config
[18:23:09] <cncbasher> arh ok
[18:23:36] <mevon> I will check that
[18:24:06] <mevon> is traj_period_nsec=[EMCMOT]TRAJ_PERIOD needed?
[18:24:21] <cncbasher> stepgen value in your hal file needs to be 1.25 x the max_acceleration in the ini file
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[18:25:30] <cncbasher> is this on a real machine or just in sim ?
[18:25:50] <mevon> it is really a sim wired with an arduino
[18:26:06] <cncbasher> arh ok
[18:26:23] <mevon> arduino actuating 3 servo
[18:27:08] <mevon> but I started off with the simulation as a template
[18:27:35] <cncbasher> ok
[18:27:48] <cncbasher> so your running over usb ?
[18:27:55] <mevon> how do I set the stepgen values in the HAL?
[18:27:58] <mevon> yes
[18:28:07] <cncbasher> usb latency will be a problem too
[18:28:46] <mevon> cncbasher, it is kinda but I implemented a position feedback
[18:28:53] <cncbasher> in your INI file try
[18:28:56] <cncbasher> MAX_VELOCITY = 20.0
[18:28:56] <cncbasher> MAX_ACCELERATION = 60.0
[18:29:05] <cncbasher> under each axis
[18:29:08] <mevon> woah thats fast
[18:29:22] <mevon> i have 1 for vel and 5 for accel
[18:29:40] <cncbasher> i have real machines running faster than that
[18:29:52] <cncbasher> but ok change the values
[18:30:03] <mevon> my machine is a little slower and smaller maybe
[18:30:04] <cncbasher> say 5 and 15
[18:30:25] <mevon> cncbasher, since I dont really have control on the speed yet
[18:31:05] <cncbasher> then change your stepgen acceleration to 15x1.25= 18.75
[18:31:26] <cncbasher> just as a trial you can tweak later
[18:31:55] <andypugh> I don't think he has stepgens
[18:31:58] <cncbasher> it's all guess at the moment anyhow
[18:32:14] <cncbasher> ok andy
[18:32:50] <mevon> hi andy
[18:33:32] <cncbasher> problem is no one else is using arduino etc so no benchmark to run too
[18:34:15] <cncbasher> i'm having problems running on an arm so i think you'll be pushed with an arduino
[18:34:17] <mevon> lowering the accel gives me less overshoot when jogging in continous on a long period of time
[18:34:29] <mevon> cncbasher, its not running much
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[18:34:55] <mevon> only steps the servo drives and stopss at position asked
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[18:35:16] <cncbasher> hey if it works dont knock it
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[18:35:25] <mevon> I have a spindle control on that too but not tested yet
[18:36:01] <mevon> andypugh, is traj_period_nsec=[EMCMOT]TRAJ_PERIOD needed?
[18:36:34] <mevon> in the motmod calling?
[18:40:43] <andypugh> Yes
[18:46:02] <Loetmichel> re @ home
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[19:11:37] <IchGuckLive> why are inch timing belts and puleys always cheeper then metric
[19:11:42] <IchGuckLive> they all come from china
[19:13:21] <IchGuckLive> im off have a great holiday in the USA
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[19:50:05] <mrsun> on these 6x4 bandsaws, is there a bronze bushing on them also on the freewheeling wheel ?
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[20:09:21] <JT-Shop> take is apart and see
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[20:57:11] <mrsun> there is bronze bushing on mine, thing is that there is a lubrication hole in the bushing but on the pulley there is a shinyspot with aspring loaded ball, i was thinking if its for some kind of oiling or if its supposed to be greace luricated so there should be a greace nipple thingie there ?
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[20:58:13] <c60> vfd keeps giving me a E.OC.n error, anyone know where I should start looking to fix this?
[20:58:29] <c60> also how important is it to have shielded cable for the spindle?
[20:58:50] <mrsun> E.OC.n ? error over current ?
[20:58:57] <mrsun> is the motor overloaded ?
[20:59:03] <mrsun> is the current limit set to low on the vfd ?
[21:02:16] <c60> sorry, E.OC.d, don't think the motor should be overloaded, doing a 6mm pass with a 9mm bit at 2500mm/min
[21:05:01] <c60> max voltage is set to 220 with intermediate voltage at 17, I upped it from the factory default of 15, 2200watt water cooled spindle
[21:15:38] <andypugh> I have visitors the next two weekends, so I have spent all evening making the house loom more like a house and less like a Bat-Cave.
[21:19:00] <andypugh> And I just found a Christmas card, on the mantlepiece. That's been there quite a while.
[21:20:53] <c60> I'm wrong, it's E.OC.n
[21:25:41] <c60> Is the current limit a function of frequency and voltage limits?
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[21:26:10] <t12> is that one of those watercooled chinese ones
[21:26:21] <t12> how is that
[21:26:26] <t12> some guy on ebay sells them?
[21:27:09] <rob_h> sometimes uget a Over current on VFD if u start or stop too fast and Bus can not handle the inrush or outrush current/voltage
[21:27:34] <t12> http://www.ebay.com/itm/CNC-Spindle-for-CNC-Router-2-2KW-/380290226679
[21:28:10] <c60> It's one of those watercooled chinese ones,
http://www.automationtechnologiesinc.com/products-page/cnc-spindle/2200-milling-spindle
[21:29:10] <c60> It starts fine, I've been cutting for a week or two with occasional stops, but I've upped the detect overtorque rating, but today I can barely cut out a 2x2 foot piece without it stopping,
[21:33:07] <t12> bearings feel ok?
[21:33:19] <t12> measure actual current being delivered?
[21:34:38] <c60> bearings seem fine, it doesn't seem to freespin like HSD one I used previously. but feels smooth,
[21:35:04] <c60> problem is it only stalls under load, I can't really measure it when it's running can I? or at least I wouldn't have enough free hands
[21:36:46] <t12> will the vfd display actual current delivered?
[21:37:24] <c60> dont' think so, I had the rated motor current set to 8amp, I upped it to 11, lets see if that works.
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[21:39:30] <t12> maybe bearings being weird only when it has load?
[21:39:35] <t12> i'm just making guesses
[21:39:52] <t12> or the vfd is having problems
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[21:42:18] <c60> Nope, that didn't work,
[21:42:36] <c60> I wish the error messages were more descriptive.
[21:42:49] <t12> what kinda vfd?
[21:44:42] <andypugh> The manual is probably online
[21:45:13] <t12> might have some bus input or whatnot that lets you read useful values directly
[21:45:19] <c60> from the same website,
http://www.automationtechnologiesinc.com/products-page/cnc-spindle/led-display
[21:45:34] <c60> 2.2kw
[21:46:20] <t12> looks like you can make it indicate output current
[21:46:52] <c60> hmm, this time the error was E.OC.d which I guess means on deaccelerating, which it wasn't hmmm
[21:47:01] <c60> on the display?
[21:47:06] <t12> yeah
[21:47:19] <t12> page 10 of the pdf
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[21:48:22] <t12> looks like you can rs485 to it as well
[21:50:42] <c60> so should I run the program again and watch it fail and try to pay attention to the current draw?
[21:51:07] <c60> It's saying .2 -> .4 once it's up to speed, but never goes above 1, this is all without load so far
[21:54:31] <andypugh> Is it perhaps stopping for some other reason, and the OC error is because the run-down ramp is too fast?
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[22:07:34] <c60> wierd, of course now that I had the current displayed it worked, although I didn't have my crappy shopvac hooked up, perhaps all the static electricity it was generating was tripping up the inverter?
[22:07:39] <mevon> linuxcnc 3d printing human organs with arduino trolololololololo
[22:07:54] <mevon> oh isht wrong chan to spam
[22:08:02] <c60> well, I'm packing it in for the day, I'll attack it tomorrow, Thanks the for input
[22:09:42] <DJ9DJ> gn8
[22:10:22] <c60> btw, the current never went above 1.8 mostly 1.3-1.5 when cutting
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[23:19:12] <mevon> i love nyquist
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[23:19:59] <mevon> 2x fsampling is a must
[23:20:04] <mevon> boys and girls
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[23:37:35] <tjb1> Ah sitting at kmart
[23:46:40] <Tom_itx> take a weapon with you?
[23:46:43] <Tom_itx> you may need it
[23:50:07] <tjb1> I have a pocket knife but im not even sure if this kmart sells laptops
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[23:51:28] <Tom_itx> i think my time is spent better doing other things
[23:52:22] <tjb1> Ive done this once before and didnt get what I wanted that time
[23:53:53] <tjb1> If I dont get it this time, its the last :)
