#emc | Logs for 2011-01-09

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[01:24:23] <lilalinux> Can I calclate sqrt() in g-code?
[01:27:59] <SWPLinux> http://linuxcnc.org/docs/html/gcode_overview.html#sub:Unary-Operation-Value
[01:28:02] <SWPLinux> yes
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[01:30:45] <lilalinux> thank you
[01:31:07] <SWPLinux> ure
[01:31:10] <SWPLinux> sure
[01:35:44] <skunkworks> http://www.youtube.com/watch?v=LLcztAbgEcU
[01:39:34] <andypugh> No messing about with 10/32 UNF for you, I see.
[01:43:49] <skunkworks> no way!
[01:46:47] <toastydeath> nice
[01:47:29] <toastydeath> 4 axis or 3
[01:48:26] <andypugh> 3.75 I think, 3 + 0.5 + 0.25 :-)
[01:48:40] <skunkworks> 3.5 ish
[01:48:58] <toastydeath> 3+1
[01:49:00] <toastydeath> cool
[01:49:04] <toastydeath> i like that kind of machine
[01:49:22] <skunkworks> oh - I thought you meant the machine - it is 3 axis + and the table indexes. (5deg)
[01:49:46] <skunkworks> the rigid tapping is done with spindle sync. (encoder on the spindle gears the z axis)
[01:58:52] <skunkworks> faster.... http://www.youtube.com/watch?v=2E3PMooch1k
[02:00:58] <toastydeath> nice
[02:01:14] <toastydeath> that's pretty fast for that diameter cut tap, have you had any breakage problems
[02:01:27] <toastydeath> with chip weld
[02:02:12] <andypugh> Have you timed them? I am not sure if the actual cycle time is shorter with the added decel time.
[02:02:37] <skunkworks> heh - just playing around.... ;)
[02:03:14] <skunkworks> andypugh: May be - but we could also cut the tap distance a lot shorter.
[02:03:38] <skunkworks> at the faster rpm - play the deceleration! ;)
[02:03:54] <andypugh> True, once you know the decel time you might be able to use a negative hole depth :-)
[02:04:06] <skunkworks> toastydeath: this is the first time this machine has ever rigid tapped. ;)
[02:04:37] <skunkworks> andypugh: heh :p
[02:06:06] <toastydeath> nice, i was just curious about the tool life itself, 100-120 fpm is the usual speed for cut taps
[02:08:21] <skunkworks> toastydeath: a 1 inch diameter tap running at 400rpm is about 110 fpm according to our chart.
[02:08:39] <toastydeath> oh, i must have scarfed the math when i just calculated it
[02:09:56] <toastydeath> oh, you're totally right
[02:10:05] <skunkworks> http://www.youtube.com/watch?v=q6S-QfmWcsI
[02:11:05] <skunkworks> toastydeath: so our 1952 slide rule fpm calculator is still right? ;)
[02:11:49] <toastydeath> haha totes
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[02:19:32] <skunkworks> bbl
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[03:19:58] <Connor_CNC> Hey Guys, question.. Those of you who do wood routing with a CNC, and use a dust shoe... Does your dust shoe and vacuum souround the router exhaust port?
[03:20:47] <Connor_CNC> I'm re-designing my dust shoe.. and I can make sure the exhaust is deflected so that it doesn't get sucked up by the vacuum.
[03:26:30] <andypugh> I don't have a router, but I can see arguments both ways..
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[03:27:58] <Connor_CNC> I can too... My issue is right now..I'm finding dust collecting on the bottom of the router..and don't like it.. so..I'm fixing it so that it's more restricted..
[03:28:12] <Connor_CNC> with exhaust vents
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[13:53:36] <jthornton> when a ssr says it is zero crossing what does that mean?
[13:54:58] <Valen> turns on and off when AC is at zero volts
[13:55:12] <jthornton> ok, thanks
[13:56:11] <Valen> I believe so anyway
[13:56:53] <jthornton> looks like if my ssr is zero crossing I can do a PWM with it :)
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[13:59:34] <Valen> I guess you could provided its less than 60Hz PWM frequency
[13:59:35] <Valen> by a lot
[14:01:21] <jthornton> the example I saw did it at 60Hz
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[14:01:38] <psha> andypugh: you have great patience! :)
[14:02:02] <andypugh> <Rant! Fume!> Not content with simply re-posting the exact question when he didn't like the answer he got (after 5 pages of trying to help) a certain forum user has now taken to posting the same question as a private email to me!
[14:02:10] <jthornton> yes he does
[14:02:24] <jthornton> LOL
[14:03:18] <jthornton> andypugh: I just ignore those e-mails
[14:03:33] <psha> at first i tought that it's just case for mharberler's gladevcp userfuncs but now i'm really happy that i've not done that :)
[14:04:00] <andypugh> I can understand finding it difficult to get your head round stringing together as much stuff as we are, so finding it technically different is OK, but the way he keeps re-asking answered questions is odd.
[14:05:06] <jthornton> I wonder how hold he/she/it is?
[14:05:26] <jthornton> s/hold/old
[14:06:18] <andypugh> Well, I was just thinking that a GladeVCP button to just run a file would be a nice addition. The button -> hal-pin -> halui-command-pin -> custom G-code -> shell script -> file.py system is stupidly complex.
[14:06:40] <psha> andypugh: yea, that's why there is MDI action (just fill desired G-code) and userfuncs
[14:07:39] <jthornton> psha: did you commit the MDI_HISTORY_FILE in master?
[14:08:25] <psha> hm, not yet...
[14:08:32] <psha> i'll ask jeff for merge today
[14:08:46] <psha> i'm nearly done with jog actions
[14:09:33] <psha> with jogs gaxis will be usable without parent interface
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[14:19:54] <psha> but there are _tons_ of bugs :)
[14:20:36] <psha> hm, google is not indexing irc logs!
[14:22:56] <jthornton> ok, I have the manual updated but I'll wait for you
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[14:30:48] * JT-Shop was glad to see some embers still glowing in the heater out here in the shop
[14:35:14] <andypugh> Hmm, my CNC PC has just blown two fuses. They were only 250mA ones, and the screen comes off the same PSU. Should I use the 0.5A fuse I jist found, or go straight to the 12.5A one :-)
[14:36:18] <JT-Shop> use a penny
[14:39:55] <psha> jthornton: ok, i'll ping you when it'll get merged
[14:45:45] <elmo40> from .25 to 12.5? :P
[14:47:20] <andypugh> Just to be sure that I could spot the problem, I thought. 3kW of smoke should be easy to spot.
[14:48:43] <jthornton> psha: thanks
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[14:57:20] <skunkworks> sunday already
[14:57:45] <jthornton> and cold n clear
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[15:03:13] <skunkworks> really cold and clear here.. :)
[15:06:37] <elmo40> High/Low: 19/8?F (-7/-13?C) <-- Oshawa,ON
[15:07:56] <jthornton> it's 19f here atm, I'll have to be brave in a bit and knock together another piece of wall
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[15:19:22] <skunkworks> -8f
[15:19:44] <skunkworks> high of 14f maybe ;)
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[15:27:33] <andypugh> 45F here, bright and clear. I hope it is a bit colder in the Alps.
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[15:51:26] <pcw_home> 38f and a little foggy
[15:53:19] <skunkworks> pcw_home: http://www.youtube.com/watch?v=2E3PMooch1k
[15:54:18] <JT-Shop> skunkworks: couldn't find a big tap to try out?
[15:54:48] <skunkworks> heh
[15:55:09] <JT-Shop> pcw_home: the more research I do on my little project the ssr you found is perfect!
[15:55:28] <elmo40> horizontal machine? nice. No spindle brake, though... not good for blind holes.
[15:56:35] <skunkworks> elmo40: horizontal - yes. no spindle brake - right.
[15:59:42] <elmo40> any way to implement a spindle brake?
[15:59:47] <elmo40> did they ever come with one?
[16:01:19] <skunkworks> the original machine didn't have a spindle brake - but the spindle was hydraulic and If I remember correctly - it stopped pretty quick when the spindle motor was stalled out.
[16:02:10] <skunkworks> there are a few things we could do - I could play with the vfd braking - but I think I had it to the point that it was on the edge of kicking out.
[16:03:36] <cradek> I tap slow - 350 or 400 is the max I ever use
[16:03:44] <pcw_home> skunkworks: that impressive (and kind of scary)
[16:04:50] <cradek> skunkworks: with your setup there it would be interesting to put an indicator on the plate, to see if the tap is pushing or pulling it on the retraction
[16:05:19] <skunkworks> cradek: easy to do. could make a video of it.
[16:05:40] <cradek> skunkworks: haha, only make a video if it doesn't move much :-)
[16:06:02] <skunkworks> (and we could tap slower - not like we are doing high production ;) et
[16:06:04] <skunkworks> yet
[16:06:09] <skunkworks> heh
[16:06:17] <cradek> if you traj & servo are 1ms or less, I bet it doesn't move much at all
[16:06:34] <skunkworks> yes - I think that is what it is set to
[16:07:08] <cradek> you sure do need more braking don't you! that fast one is a little nuts
[16:07:58] <skunkworks> yes - we have braking resistors on the vfd - but we may want to revisit the parameters and see if it could be tweeked
[16:08:29] <cradek> bbl
[16:08:47] <skunkworks> cradek: are you running master on jr?
[16:08:54] <skunkworks> never mind - ttyl
[16:08:55] <andypugh> Hmm, looks like the bldc component needs work, I broke reverse.
[16:09:07] <andypugh> I think that I am reversing twice, probably
[16:09:20] <skunkworks> oops
[16:09:39] <andypugh> ie, setting the bit, and then inverting the output too.
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[16:21:49] <pcw_home> Ah nikos. got his BLDC motor running (though it did take reading the manual)
[16:24:35] <andypugh> desperate situations call for desperate measures
[16:25:58] <pcw_home> I suppose you could have a util that spins the motor 100 turns or so in stepper mode
[16:25:59] <pcw_home> to determine encoder factor Hall sequence etc (or read the manual)
[16:27:04] <andypugh> Perfectly possible as a standalone utility.
[16:27:35] <andypugh> But tricky, there are so many ways to do it.
[16:28:01] <andypugh> I will be writing up a process for manually working out motor parameters.
[16:28:35] <pcw_home> I did notice someone wrote a nice graphic tuning program
[16:28:49] <andypugh> For example, instead of swapping encoder scale, I think he could have swapped two motor leads
[16:28:59] <pcw_home> Yes
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[16:34:55] <skunkworks> andypugh: http://bbs.homeshopmachinist.net/showthread.php?t=45314&page=34&highlight=emc2
[16:38:14] <andypugh> Fame! No where's the fortune?
[16:39:15] <andypugh> I posted the hex boring to CNC zone and got one comment saying "it's not a very good fit to the allen key" and one saying "rotary broaching would be faster". I think they both rather missed the point.
[16:39:48] <JT-Shop> that's what you get from forums :)
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[16:41:13] <elmo40> andypugh: don't be too worried about forums. I think most of those guys run Mach3 anyways ;)
[16:44:32] <celeron55> those are exactly the answers you will get most of the time on the internet
[16:45:59] <celeron55> it doesn't matter how great things one makes, people will mostly comment about the downsides
[16:46:29] <celeron55> people who never could have done anything comparable
[17:02:20] <elmo40> nice large 5-axis machine. (don't mind the controller... he is Polish ;) http://www.youtube.com/watch?v=nITLI_WcnuM
[17:04:35] <JT-Shop> must be a tough part of town to need to keep an Uzi hanging on the wall
[17:08:12] <elmo40> just in case... you know.
[17:08:21] <andypugh> I would never have dreamed of doing something that big with steppers
[17:08:34] <elmo40> that part threw me a loop, too.
[17:09:03] <andypugh> No doubt that it works though.
[17:09:30] <elmo40> it is only foam ;)
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[17:27:19] <elmo401> seems like people have yet to update their links. http://www.cnc-toolkit.com/chips.html has a link to http://www.linuxcnc.org/bdi/
[17:27:26] elmo401 is now known as elmo40
[17:32:08] <andypugh> We probably need a forwarding page there
[17:34:51] <elmo40> look what people charge $100 for :P http://www.cnczeus.com/screenshots/
[17:38:02] <JT-Shop> the "return to site" button works
[17:38:08] <SWPLinux> I should email Rab and see if he can change the links on that page (at least)
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[17:49:32] <SWPLinux> Jymmm: you're an op here, aren't you?
[17:49:41] <Jymmm> sure
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[17:50:01] <SWPLinux> can you check to see why I'm banned from this channel until I've identified?
[17:50:29] <SWPLinux> it normally wouldn'
[17:50:31] <SWPLinux> gah
[17:50:35] <Jymmm> SWPLinux: The channel is set so onlt indentified person may pspeak
[17:50:46] <andypugh> I am thinking of changing the splash screen on my computer to be one of the Chips penguin logos, rather than the default Intel one. I believe it is not all that difficult to do.
[17:51:02] <SWPLinux> wouldn't be an issue, but this trip my connection has been spotty
[17:51:07] <Jymmm> SWPLinux: must identify to speak
[17:51:12] <SWPLinux> it's not a voice thing
[17:51:24] <Jymmm> SWPLinux: It's a channel mode
[17:51:25] <skunkworks> Jymmm: I don't have to be itentified...
[17:51:31] <skunkworks> heh
[17:51:31] <SWPLinux> [09:47:14] [QUIT] Disconnected from irc://freenode/ (irc://irc.freenode.net/). [Reconnect]
[17:51:32] <SWPLinux> [09:47:34] [INFO] You are banned from this channel.
[17:52:05] <skunkworks> I only identify myself once in a while to make sure no one takes my name..
[17:52:05] <SWPLinux> once I identify, I can rejoin
[17:52:54] <SWPLinux> I don't have that problem on any other channels
[17:53:56] <SWPLinux> I think it only happens with this nick as well. my machine at home seems to reconnect OK
[17:54:29] <SWPLinux> gah. now I've got random "who" info dumps
[17:55:28] <JT-Shop> on the D510MO the PCI express connection do you need a cable for that?
[17:56:01] <SWPLinux> no, but you might need a riser card
[17:56:01] <Jymmm> SWPLinux: Did you ident to nickserv?
[17:56:12] <SWPLinux> Jymmm: yes
[17:56:34] <Jymmm> SWPadnos: usually tat will enable your cloak
[17:56:34] <SWPLinux> the problem is that I have to manually go back to this channel (only) and /rejoin, since I'm banned until I have ident'ed
[17:56:41] <SWPLinux> yep, it does
[17:56:48] <SWPLinux> or did it?
[17:56:54] <SWPLinux> (I can't tell from here)
[17:57:01] <Jymmm> SWPadnos: Well, yes. you can't change nicks while in a banned channel
[17:57:44] <SWPLinux> ?
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[17:58:14] <Jymmm> SWPadnos: If you are muzzled in a channel, you can't change nicks while in the channel.
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[17:58:42] <SWPLinux> I haven't changed nicks, unless the cloak change counts as a nick change
[17:58:55] <Jymmm> I dubt it
[17:58:55] <SWPLinux> I'm also not in the channel when I identify, because I'm banned ;)
[18:00:19] <SWPLinux> It seems like this is a recent development, but I can't be sure
[18:01:53] * JT-Shop wonders if pcw_home is around?
[18:03:39] -!- mode/#emc [+o Jymmm] by ChanServ
[18:06:31] <psha> hide! op incoming!
[18:06:35] * psha hides under table
[18:08:32] <motioncontrol> good evening. in new pid module have another 2 pin : pid.x.command-deriv and pid.x.feedback-deriv. how connection it in hal ?
[18:09:53] <Jymmm> SWPLinux: what is your ip?
[18:10:08] <SWPLinux> hmmm. it varies when I'm on the road
[18:10:09] <SWPLinux> one sec
[18:10:14] <Jymmm> SWPLinux: cox.net ?
[18:10:29] <SWPLinux> yep
[18:10:31] <SWPLinux> looks like it
[18:10:36] <Jymmm> it's banned
[18:10:39] <Jymmm> hang on
[18:11:02] <SWPLinux> oh, well that would explain it :)
[18:11:06] <SWPLinux> don't unban it
[18:11:17] -!- mode/#emc [-b *!*@*lv.lv.cox.net] by Jymmm
[18:11:24] <SWPLinux> if it's banned for a reason, I can live with having to rejoin
[18:11:29] <psha> #emc: ban *!*@*lv.lv.cox.net\
[18:11:31] <psha> this one?
[18:11:49] <Jymmm> SWPLinux: It can alwasy be readded if need be
[18:12:25] <SWPLinux> ok. I don't know if that was because of those logbots that kept dropping in
[18:12:28] <Jymmm> SWPLinux: btw, you have op too
[18:12:36] <SWPLinux> if only I knew how to use it ;)
[18:12:42] <Jymmm> heh
[18:13:08] <Jymmm> SWPLinux: The speed op course... lesson 1) unban yourself
[18:13:15] -!- mode/#emc [+q SWPLinux!*@*] by Jymmm
[18:13:24] <Jymmm> or unmute yourself
[18:13:36] -!- mode/#emc [-q SWPLinux!*@*] by Jymmm
[18:13:50] <SWPLinux> I have no mouth, but I must speak
[18:14:08] <Jymmm> yo failed lesson 1
[18:14:10] <SWPLinux> ummm mmmmmmoooo mmmmssslllfffff
[18:14:31] <SWPLinux> it's so hard to unmute ones self
[18:14:49] <Jymmm> just op yourself
[18:15:01] <SWPLinux> meanwhile, another 4 or 5 "who" listings come in ...
[18:15:02] <Jymmm> you cant mute/ban an op
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[18:15:27] <SWPLinux> if only I knew how to op myself :)
[18:15:41] <Jymmm> SWPLinux: /cs op #channel nick
[18:15:49] <SWPLinux> oh, thanks
[18:16:38] <SWPLinux> and of course (now that I know that), /cs help is my friend :)
[18:16:47] * SWPLinux never knew you had to ask chanserv to do it for you
[18:16:55] <Jymmm> SWPLinux: since freenode went to a new ircd, I have to relearn all the cmds.
[18:17:36] <Jymmm> SWPLinux: I've been absent (babysitting) from ##php
[18:17:51] <Jymmm> for a while
[18:17:59] <SWPLinux> heh
[18:18:15] -!- isssy has quit [Quit: Visitor from www.linuxcnc.org]
[18:18:26] <SWPLinux> now I wish I could figure out the problem with TMobile. I can't seem to connect while I'm in the airport lounges
[18:18:36] <SWPLinux> or on my (Verizon Wireless) phone either
[18:18:50] <SWPLinux> I get SASL related errors
[18:18:52] <Jymmm> they probablyedblocked port 6667, try secure instead
[18:19:19] <SWPLinux> secure as in via tor, or ssh?
[18:19:25] <Jymmm> ssh
[18:19:27] <psha> as in ssh
[18:19:28] <SWPLinux> hmmm
[18:19:33] <SWPLinux> I wonder how to do that with chatzilla
[18:19:36] <SWPLinux> if it's possible
[18:20:00] <Jymmm> SWPLinux: scroll down a bit http://freenode.net/irc_servers.shtml
[18:20:58] <Jymmm> SWPLinux: are you using seamonkey?
[18:21:06] <SWPLinux> not on this machine
[18:21:13] <SWPLinux> the Windows machine at home is
[18:21:18] <Jymmm> oh just chatzilla solo
[18:21:25] <SWPLinux> as a firefox plugin
[18:21:29] <Jymmm> ah
[18:22:03] <Jymmm> chanserv you're a whore!
[18:22:09] -!- mode/#emc [-o Jymmm] by ChanServ
[18:22:32] <SWPLinux> see what happens when you yell at chanserv
[18:22:48] <Jymmm> chanserv SWPLinux is a whore
[18:23:50] <Jymmm> I need to bond glass to thin perferated metal, what epxy is good for this?
[18:23:58] <Jymmm> epoxy
[18:24:35] <Jymmm> any two part? or somethign specific?
[18:25:25] <Jymmm> and I only need to do this is small batches at a time, so anything better than others as not to waste the epoxy?
[18:26:30] <andypugh> How small?
[18:26:49] <Jymmm> 1-5 at a time
[18:27:19] <Jymmm> the area to be glued is no more than 1/4" x 3/4"
[18:28:06] <andypugh> I like these, and have several diferent grades: http://www.tooled-up.com/Artwork/ProdZoom/ARAICSYR.jpg
[18:29:40] <Jymmm> Let me see if I can find an example pic
[18:35:52] -!- SWPLinux has quit [Quit: ChatZilla 0.9.86 [Firefox 3.6.13/20101206122825]]
[18:36:20] <Jymmm> Or, can anyone suggest a way to drill a 0.075" hole in glass
[18:36:41] -!- motioncontrol has quit [Quit: Sto andando via]
[18:36:51] <Jymmm> maybe 0.100" hole in glass
[18:37:17] <awallin> we drill 1.6mm holes with ca 6-8krpm small drill and diamond coated bits
[18:37:20] <awallin> in microscope slides
[18:37:20] <andypugh> abrasive diamond bit
[18:37:35] <awallin> with water surrounding the bit and hole
[18:37:58] <andypugh> You can buy them for cutting holes in tiles.
[18:38:10] <awallin> the bits which are shaped like a cylinder (no middle part) work well
[18:38:13] <Jymmm> I have the ones for tile, but not THAT small
[18:38:34] <awallin> 1mm and 1.5mm were easy to get hold of over here
[18:38:48] <andypugh> http://www.eternaltools.com/small-diamond-core-drills.htm
[18:44:59] <Jymmm> ok, found some
[18:45:14] <Jymmm> http://www.dadsrockshop.com/diamond_drills.html
[18:49:49] <andypugh> and 2.5mm is your 0.1".
[18:49:59] <Jymmm> Yeah =)
[18:50:29] <andypugh> Get the next size down too, I think they tend to drill oversize
[18:50:47] <Jymmm> ah
[18:50:51] <Jymmm> good to know
[18:51:21] <andypugh> But I have only ever wanted the bit in the middle, making metallographic specimens
[18:53:33] <Jymmm> I just need to run a string thru the middle of the hole is all
[18:54:41] <elmo40> skunkworks: only identify once in a while? why not all the time?
[18:55:13] <skunkworks> elmo40: pretty new to irc... and lazy
[18:55:19] <lilalinux> Is it possible to have live plot also plot the tool's diameter?
[18:55:33] <andypugh> I think it does
[18:55:49] <andypugh> If the diameter is in the tool table
[18:55:54] <lilalinux> it is
[18:56:10] <lilalinux> it shows the tool with diameter, but not in the "history"
[18:56:18] <lilalinux> only at the current position
[18:56:18] <andypugh> That should switch the representation of the tool from a conical point to a scaled cylinder
[18:56:24] <lilalinux> yes
[18:56:29] <lilalinux> but it doesn't keep the traces
[18:56:32] <andypugh> Ah, No.
[18:56:50] <lilalinux> :-/
[18:57:26] <andypugh> I think it would tend to clutter the display somewhat.
[18:57:55] <lilalinux> in 3d yes
[18:58:04] <lilalinux> but in the 2d views it would be helpful
[18:59:25] <andypugh> Feel free to add the feature :-)
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[19:03:32] <andypugh> Actually, there is more than one way to get a preview now, I wonder if that feature is in the Gremlin one?
[19:03:39] <elmo40> so you want CAD/CAM simulation live on the machine?
[19:03:54] <andypugh> And why not?
[19:04:17] <elmo40> I would love that feature.
[19:05:50] <elmo40> I can handle wire-frame but having 3D tool cutting from the material specs in a table and reading the tool table for dimensions/type...
[19:06:02] -!- qq- [qq-!~Moldovean@unaffiliated/qq-] has joined #emc
[19:09:34] <elmo40> our MAZAK machines have that. ;) for both simulation and actual tool cutting. the problem I have with their version is when I move the view it erases all that was cut and just does a continuation. very weird. as if it requires so much memory that they didn't want to cause problems.
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[19:45:47] <elmo40> found another EMC. Emerald Motion Controller. Says it is open architecture with a 'true' real-time OS. http://www.iis-servo.com/IISAutomationSystems/EmeraldIntro/tabid/73/Default.aspx
[20:00:16] <awallin> when digging up articles for the emc2 wikipedia page I found a dozen chinese papers with references to emc, I wouldn't be surprised if they have one or many forks over there too
[20:04:38] <skunkworks> awallin: how is the extruder coming?
[20:05:48] <awallin> haven't had much play-time with it... started with repsnapper for g-code generation, now tried skeinforge a bit but didn't find the right settings
[20:07:30] -!- SWPadnos_ [SWPadnos_!~SWP@114.sub-97-225-38.myvzw.com] has joined #emc
[20:07:48] <Jymmm> SWPadnos_: tethered?
[20:08:15] <SWPadnos_> nope. the phone is working now
[20:08:19] <SWPadnos_> yay
[20:08:26] <Jymmm> ?
[20:08:50] -!- ries has quit [Read error: Connection reset by peer]
[20:08:50] <SWPadnos_> i'm at the airport, using my droid
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[20:09:03] <Jymmm> SWPadnos_: tethered to your laptop?
[20:09:16] <Jymmm> via usb or BT ?
[20:09:23] <SWPadnos_> no, using andchat
[20:09:28] <SWPadnos_> on the phone
[20:09:31] <Jymmm> irc from droid?
[20:09:33] <Jymmm> ah
[20:09:41] <Jymmm> I just notice the hostname is all
[20:09:47] <SWPadnos_> yes
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[20:09:53] <SWPadnos_> all?
[20:10:03] <Jymmm> myvzw.com
[20:10:29] <Jymmm> so I knew you werent on a hotspot
[20:10:48] <SWPadnos_> ah
[20:10:57] <Jymmm> have you tried tethering yet?
[20:11:19] <SWPadnos_> strangely, about the only free thing in Las Vegas is wifi at the airport
[20:11:27] <SWPadnos_> no, i haven't
[20:12:07] <SWPadnos_> I think I need a non-Verizon ROM to allow that
[20:12:33] <SWPadnos_> plus, they like to charge extra if you actually tell them you're doing it
[20:12:37] <Jymmm> even if they charge more for it, you should at least test and have it setup once. just in case. I'm sure there are plenty of hacks out there
[20:12:52] <Jymmm> you dont actualyl TELL them
[20:12:58] <SWPadnos_> heh
[20:13:01] <awallin> did you go to CES?
[20:13:14] <SWPadnos_> yep
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[20:13:33] <awallin> gadget heaven...
[20:13:38] <Jymmm> anyone know what are in lead test kits?
[20:13:50] <Jymmm> swabs and ________________?
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[20:14:12] <SWPadnos_> awallin: tons of gadgets, if you have a iDevice of some sort
[20:14:17] <Jymmm> $1/each test is a tad pricy
[20:14:22] <SWPadnos_> which iDon't
[20:14:49] <Jymmm> SWPadnos_: iEMC
[20:15:09] <SWPadnos_> I liked a t-shirt one guy had: "iTalk, uListen"
[20:15:37] <Jymmm> heh
[20:15:42] <SWPadnos_> which seems to be the Apple motto
[20:15:55] <andypugh> iPad as remote bluetooth pendant: Hmmm
[20:15:55] <Jymmm> I'm surprised they havne't tried iMap
[20:16:05] <Jymmm> andypugh: NOT!
[20:16:18] <Jymmm> no RF dude
[20:16:22] <SWPadnos_> I didn
[20:16:25] <SWPadnos_> err
[20:16:26] <Jymmm> no crappy iPad either
[20:17:09] <SWPadnos_> I didn't realize that Apple gets a royalty on every (legal) device tha connects to an IOS device
[20:17:35] <Jymmm> IOS dev?
[20:17:37] <SWPadnos_> via the plug anyway
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[20:18:11] <SWPadnos_> ipad, iphone, ipod
[20:18:41] <Jymmm> you mean that plugs into an apple product?
[20:18:43] <SWPadnos_> all those speakers and chargers and stereos that let you stick an iWhatever in them
[20:18:46] <SWPadnos_> yep
[20:19:02] -!- ries has quit [Client Quit]
[20:19:04] <andypugh> I bet they don't, in practice.
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[20:19:33] <SWPadnos_> they all have to authenticate to the device, and there's a royalty on the chip/code that does that
[20:19:36] <Jymmm> There are shitloads of those coming out of china, it must be those that liense the hardware connector/logo
[20:20:22] <SWPadnos_> it doesn't "just work" - you (the developer) have to go through some shenanigans
[20:20:55] <andypugh> I guess it depends on where the plug in. I doubt that devices that connect to the headphone jack do, and I think that the audio signals are available on the dock connector too.
[20:21:33] <Jymmm> another reason to fsck iWhatever
[20:21:40] <SWPadnos_> headphones no, dock connector devices probably yes - even chargers need to authenticate
[20:21:59] <SWPadnos_> jymmm: I agree wholeheartedly
[20:22:26] <Jymmm> ok, I'm outta here for a while
[20:22:35] <Jymmm> SWPadnos_: have a good flight!
[20:22:46] <SWPadnos_> thanks
[20:24:43] * JT-Shop thinks it is 5:30 somewhere... :)
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[20:27:15] <Roguish> andypugh: little help with 7i39 ?
[20:27:22] <andypugh> Go on...
[20:28:08] <andypugh> I am actually fiddling with one right now.
[20:29:20] <Roguish> in hall3 there are hall phase inputs. where (what) do they get connected to?
[20:30:45] <andypugh> Firstly: I am about to submit a new interface module called simply "bldc" which will allow a lot more (too much?) flexibility.
[20:31:34] <Roguish> also, on the 7i39 board, there are 2 inputs on the encoder connector: senseA and senseB. what are these???
[20:31:35] <andypugh> I assume your motor has Hall sensors and an encoder? And that the Hall sensors are wired to the 7i39?
[20:31:53] <Roguish> yes finally got a motor with both halls and encoder.
[20:32:03] <andypugh> Roguish: Current sensing, I think.
[20:32:17] <andypugh> Roguish: Have you been using bldc_sine?
[20:32:24] <Roguish> no
[20:32:29] <andypugh> OK.
[20:32:58] <andypugh> The new component will let you run motors which don't have Hall sensors.
[20:33:11] <Roguish> using 3pwmgen and encoder in hm2....
[20:33:32] <Roguish> all my motors have halls, not all have encoders.
[20:33:46] <andypugh> But, anyway, to answer the question: the Hall sensors connect to GPIO pins in HAL.
[20:35:01] <andypugh> The 7i39 manual shows which 7i39 pin the Hall outputs are on, but the pins into HAL don't have any special names, they are just GPIO. (but in between the special pins).
[20:35:28] <andypugh> net A bldc.0.A-value hm2_5i23.0.3pwmgen.00.A-value
[20:35:28] <andypugh> net B bldc.0.B-value hm2_5i23.0.3pwmgen.00.B-value
[20:35:28] <andypugh> net C bldc.0.C-value hm2_5i23.0.3pwmgen.00.C-value
[20:35:42] <andypugh> Sorry, wrong block of code.
[20:35:51] <andypugh> #net hall1 hm2_5i23.0.gpio.003.in => bldc.0.hall1
[20:35:52] <andypugh> #net hall2 hm2_5i23.0.gpio.004.in => bldc.0.hall2
[20:35:52] <andypugh> #net hall3 hm2_5i23.0.gpio.005.in => bldc.0.hall3
[20:36:01] <Roguish> oh, ok.
[20:36:03] <andypugh> (lose the #, obvously)
[20:37:45] <Roguish> ok. i finally got a .ini and .hal file that run (at least start axis). and wired up the motor to the 7i39. now i can straighten out some of the plumbing.
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[20:48:20] <Connor> I asked this yesterday, but,I think everyone was out or something.. :)
[20:48:29] <Connor> Those of you who do wood routing with a CNC, and use a dust shoe... Does your dust shoe and vacuum souround the router exhaust port?
[20:48:29] <Connor> I'm re-designing my dust shoe.. and I can make sure the exhaust is deflected so that it doesn't get sucked up by the vacuum.
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[21:12:24] <andypugh> Connor: Perhaps nobody knows?
[21:12:33] <Connor> Guess not. :(
[21:12:52] <andypugh> Does a Google Images search give any clues?
[21:13:18] <Connor> I've seen all kinds of different things.
[21:15:02] <andypugh> I think it would depend on the vacuum air flow. It's obviously bad if the router exhaust raises the pressure in the shoe a bit, and disasterous if it raises it above ambient.
[21:15:32] <andypugh> On the flip side, with a lot of vacuum you get better motor cooling at low speeds.
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[21:48:04] <atmega> yuck
[21:48:27] <andypugh> ?
[21:59:54] <atmega> I suffer a lot from "wrong window syndrome"
[22:00:46] <andypugh> Aha!
[22:00:55] <lilalinux> I can't find documentation for tooledit, can someoen give me a link, or help me to figure out the values for this kind of cutter? http://hammertools.de/images/product_images/popup_images/1191_0.jpg
[22:14:53] <JT-Shop> lilalinux: http://www.linuxcnc.org/docview/html/gcode_tool_compensation.html#r1_2
[22:16:01] <lilalinux> JT-Shop: yes, I've seen that page, but it doesn't describe how to get a radius cutter
[22:20:17] <andypugh> You can't compensate a radiused cutter
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[22:21:13] <andypugh> To do that requires an internal "knoweldge" of the shape of the material, such as where the top surface is, and EMC2 doesn't have that
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[22:24:50] <JT-Shop> lilalinux: is this 3-d mold work or just putting a radius on a profile?
[22:25:32] <lilalinux> JT-Shop: I just thought it would display it in the live plot instead of a cylinder
[22:25:53] <JT-Shop> no, the display is rather primitive at best
[22:26:07] <JT-Shop> the tool display
[22:27:35] <JT-Shop> I have determined beyond a shadow of a doubt that 16 2x6x10' studs in a wall is all I want to stand up by my self
[22:28:07] * JT-Shop is glad there is only 2 small lifts left
[22:28:35] <andypugh> You mean all together in a lump, or individually?
[22:30:04] <andypugh> Anyway, walls should be stone, brick, or block (at a pinch). Wood is no good for building houses, it only lasts a few centuries.
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[22:34:32] <JT-Shop> all at once with a 16' 2x6 plate on top
[22:35:43] <JT-Shop> http://s47.photobucket.com/albums/f163/johnplctech/Shop%20Addition/
[22:36:27] <JT-Shop> this one was extra heavy due to the extra studs to support the garage door header
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[22:50:28] <Valen> andypugh: in America I would have thought they should be built out of stuff you could peel off yourself after the earthquake
[22:52:34] <andypugh> JT-Shop: Yes, that looks weighty, but also a little draughty
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[22:54:21] <LawrenceG> front end loader makes a fine framing assistant
[22:55:35] <andypugh> Makes quite a good scaffolding too. I was rather glad to be stood in the JCB bucket when the stone outhouse I was fiddling with the roof of collapsed.
[22:56:35] <andypugh> The structure in the foreground here: http://www.bodgesoc.org/before2.jpg was a lean-to double-privvy on the side of the barn.
[22:57:01] <andypugh> Turned out to be a whole lot less stable than it looks.
[22:59:15] <LawrenceG> hi andy... yea.. I have used a plank tied to the roll cage and the loader bucket for painting trim on the barn... rolls along nicely and has hydraulic leveling capabilities!
[23:02:56] <skunkworks> LawrenceG: http://www.youtube.com/watch?v=q6S-QfmWcsI
[23:10:40] <LawrenceG> skunkworks, cool... I saw that... nice to see heavy iron alive again.. the rigid tapping is excellent
[23:13:28] <andypugh> Does anyone else here worry that one day they might finish their machines, and then have to stop fiddling with EMC2 and start actually making stuff?
[23:13:38] <skunkworks> every day
[23:16:06] <Valen> wewt, writeup is done http://www.cnczone.com/forums/general_metal_working_machines/118358-phenolic_basalt_head_our_hm45.html
[23:16:32] <andypugh> I do have a feeling that I am stringing the project out. After all, I do have a perfectly functional mill/lathe. I don't need these new drivers, I don't need to convert the Harrison...
[23:16:50] <Valen> andypugh: nah, you just need to mess with it more
[23:18:20] <skunkworks> Valen: nice work!
[23:18:28] <andypugh> Valen: My dad has the _ideal_ machine foe making those aluminium saddles: http://www.machinetoolsyorkshire.co.uk/image_library/library/m/mac/machinetoolsyorkshire.co.uk/orig__563.jpg
[23:19:20] <Valen> skunkworks: if your able to comment on it in the forum it'd be nice lol ;->
[23:19:28] <Valen> only had one comment so far on the thing
[23:19:38] <skunkworks> heh
[23:19:40] <Valen> feel a bit let down lol
[23:19:57] <Valen> did you like the youtube link ;->
[23:20:21] <andypugh> If you comment on mine: :-) http://www.cnczone.com/forums/vertical_mill_lathe_project_log/109301-harrison_universal_miller_conversion.html
[23:22:28] <skunkworks> Valen: I like the shower curtain :)
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[23:26:00] <Valen> its not really up to it unfortunatly lol
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[23:26:12] <Valen> the 24k rpm spindle does a good job of spraying crap around