#emc | Logs for 2011-01-18

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[00:02:13] <SWPLinux> hey Jymmm, you around?
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[00:07:29] <Emcrules_Laptop> Ok need help understanding "[AXIS]max vel" in INI. Max vel shoild be in units/sec correct? so if i want my max vel for that axis to be 10in/min "max vel" should =.166666667 or am I missing someting.
[00:07:43] <cradek> you have it right
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[00:08:39] <SWPLinux> it is of course one word with no spaces ...
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[00:09:17] <Emcrules_Laptop> Ok then i just set it in my INI restarted Axis and did a simple F50 G01 Z1 and the DRO said i was @ a vel of 20?
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[00:09:56] <SWPLinux> and you're changing [AXIS_2] settings?
[00:10:02] <Emcrules_Laptop> Yes
[00:10:09] <SWPLinux> hmm
[00:10:21] <cradek> you have made a mistake, like possibly editing the wrong file
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[00:10:51] <cradek> or not saving your changes before you restarted emc, or something like that
[00:10:56] <cradek> look around carefully :-)
[00:11:07] <Emcrules_Laptop> No But i will check
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[00:20:32] <emcrules_> Ok thisis going to sound dumb but how can i tell the name of the INI file emc is using to load
[00:22:56] <cradek> it matches the name you pick on the menu when you start emc
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[00:24:36] <emcrules_> then i am using the right file
[00:26:03] <emcrules_> http://pastebin.com/VKyzWbe5
[00:27:15] <cradek> here you've got Z set to 5 inches/minute
[00:27:52] <Emcrules_Laptop> Yes i tried to see if there was any change from 10inches
[00:28:26] <Emcrules_Laptop> Also my PID setting do not match what is shown on the calibration screen
[00:28:42] <cradek> ok, my answer is still the same
[00:28:54] <cradek> what is the full path of this file you pastebinned?
[00:29:11] <Emcrules_Laptop> but if i change my scaling ther is an effect
[00:29:47] <Emcrules_Laptop> one sec
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[00:30:35] <emcrules_> /home/jp1/Desktop/hm2-servo
[00:30:59] <cradek> that path is not somewhere emc looks for config files by default
[00:31:18] <cradek> what are you choosing on the config picker tree?
[00:32:18] <emcrules_> ah found it you were right i was looking at the wrong folder
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[00:35:28] <Emcrules_Laptop> Well that worked amazing what happens when you check the details
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[01:01:03] <Valen> what grease should I use for stuff thats going to sit outside for ages?
[01:01:15] <Valen> like farm gates and such like
[01:01:30] <Valen> sliding parts of locks (not the tumblers of course)
[01:03:20] <pcw_home> Ekken the 7I52 encoder inputs will work but they are muxed encoders like on the 7I48 so is supported only by Master
[01:03:22] <pcw_home> 8I20 (and 7I64) support needs master patched with sserial patch also needs bldc.comp
[01:04:05] <Tom_itx> Valen, cosmolene
[01:04:12] <Valen> hmm interesting
[01:04:28] <Valen> doesn't that stuff go hard
[01:04:40] <Tom_itx> it may
[01:05:00] <Valen> wouldnt do a lock thats already sticky any favours ;->
[01:05:27] <Ekken> pcw_home, can you explain what that "only by Master" means? I haven't used EMC at all yet..
[01:05:31] <Tom_itx> get some marine grease
[01:05:34] <Valen> i'm after a lubricant more than a protectant
[01:05:43] <Valen> yeah thats what I was thinking, hows that stuff in the sun?
[01:06:18] <Tom_itx> like any other petroleum product
[01:06:37] <Valen> I figured there might be something with better properties for that
[01:07:10] <Tom_itx> just let it squeak
[01:07:20] <Valen> nah, its actually hard to move
[01:07:37] <Valen> and theres a bunch of small chicks there who have great difficulty with it
[01:08:00] <Valen> I have done a few with some wheel bearing grease I had laying about and it is night and day
[01:08:07] <Valen> I was just thinking something a bit longer lasting
[01:08:14] <Tom_itx> well, mount it to a bar with sealed bearings
[01:08:26] <Tom_itx> and shroud the bearings from the weather
[01:08:27] <Valen> lol bit overkill
[01:08:35] <Valen> and theres like 20 gates
[01:08:36] <Tom_itx> abec 7 for sure
[01:08:41] <Valen> not 9?
[01:08:47] <Tom_itx> ok 9 it is
[01:08:53] <Valen> ceramic of course ;-P
[01:08:58] <Tom_itx> won't rust
[01:09:03] <Valen> exactly
[01:09:11] <Tom_itx> get some teflon bushings
[01:09:34] <Valen> not my property, missus just has a horse agisted there
[01:10:07] <Valen> and for some reason I cant resist helping all the 16-20 year old fit blonde things lol
[01:10:24] <Tom_itx> it'll just get you into trouble
[01:10:32] <Valen> only if i'm lucky ;-P
[01:11:40] <pcw_home> Ekken you have fetch (via git) the development version of EMC source apply the relevent patches and compile (its easy, the wiki has instructions)
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[01:12:07] <Valen> I'll give the marine grease a go, if its black it'll last longer than the red stuff I have otherwise
[01:12:31] <Tom_itx> blue
[01:13:02] <Tom_itx> the water proof stuff is blue
[01:13:14] <Ekken> pcw_home, ok, so it shouldn't be a problem.. I will order that 7I52
[01:13:20] <Valen> hmm
[01:13:35] <Valen> might need to make "andersons patented outdoor grease" lol
[01:13:41] <Tom_itx> is there a hobby store with a marine section?
[01:13:41] <Valen> mix it up with some carbon black
[01:13:44] <Tom_itx> they'll have it
[01:14:02] <Valen> supercheap (car parts supplier) has it by the bucket full for $10
[01:14:16] <Valen> I was just wondering if there was an "outdoor" grease
[01:15:24] <Ekken> Speaking of bearings.. I would need to order some abec7 bearings tomorrow for my spindle :/
[01:15:33] <Valen> ouch spendy?
[01:15:43] <emcrules_> Valen I have seen some grease used for outdoor use. they used it on car crushers to protect the bonnet slides
[01:16:00] <Valen> Emcrules_ whats it called/
[01:16:53] <emcrules_> I will try to find out for you in the morning it was sticky as hell. water was not going through this stuff
[01:17:02] <Ekken> Valen, only ~500$ for a pair, haven't come up with a better plan yet
[01:17:31] <Valen> cheap and dodgy theoretically abec7 perhaps? http://www.vxb.com/
[01:17:40] <Valen> do you need the abec7?
[01:17:55] <Ekken> speed seems to be a issue with lower ratings
[01:18:02] <Valen> ahh sucky
[01:18:07] <Ekken> and I didn't find any abec5
[01:18:15] <Valen> though running them over speed will just make em wear faster
[01:18:18] <Valen> what you milling?
[01:18:24] <Ekken> VXB doesn't have any 257207 & 7206
[01:18:35] <Ekken> cheap chinese rf45 copy
[01:19:00] <Valen> look like this ?http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?JakeAndRussells
[01:19:09] <Ekken> yep
[01:19:16] <Ekken> http://ekke.kapsi.fi/temp/.jyystin.jpg
[01:19:18] <Valen> ours didn't have full bearings
[01:19:29] <Valen> half the bearing is the casting itself
[01:19:34] <Ekken> :P
[01:19:49] <Ekken> I thinks it's even cheaper than mine? :D
[01:19:56] <Valen> have you pulled yours out all the way and seen they are actually full bearings?
[01:20:11] <Ekken> yep, bearings are in my table
[01:20:19] <Valen> should do this instead http://www.cnczone.com/forums/general_metal_working_machines/118358-phenolic_basalt_head_our_hm45.html
[01:20:23] <Valen> way more win ;->
[01:21:32] <Ekken> nice :)
[01:21:40] <Valen> http://www.vxb.com/page/bearings/PROD/Kit10853 wont do for you?
[01:21:55] <Valen> what RPM do you get to anyway?
[01:22:00] <Ekken> I'm going for belt drive and 1:2 & 2:1 rations with 5-140Hz sensorless vector VFD
[01:22:15] <Ekken> about 8000-8500rpm max.
[01:22:24] <Ekken> those Nachis are 15, no go
[01:22:35] <Valen> 15?
[01:22:45] <Ekken> 15 Contact Angle
[01:22:56] <Valen> whats wrong with that?
[01:23:11] <Ekken> It's not so good for a mill
[01:26:01] <Valen> sounds like it'd be better if anything
[01:27:20] <Ekken> http://ekke.kapsi.fi/temp/.15_vs_25.jpg
[01:27:51] <Ekken> -45% axial, +10% radial..
[01:28:31] * Valen thinks there is a reason your getting much more expensive bearings
[01:28:47] <Valen> and its more the marketing dept than the engineering dept driving your choices ;-P
[01:28:52] <Ekken> 25 abec5 shoud be fine, just can't find any :D
[01:29:29] <Valen> ok given the bearings you have probably literally fell off the back of a truck anything you put in eill be an improvement
[01:30:21] <Ekken> yep, I agree
[01:32:27] <Valen> I'd personally put non abec bearings in if you can get them cheap and get everything else working
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[01:32:44] <Valen> they will work ok if overspeeded for a while just have a lower life time
[01:33:04] <Ekken> but how long that "for a while" would be?
[01:33:14] <Valen> once your sure the existing iron and your VFD setup will do the job you want it to do, put the expensive bearings in
[01:33:32] <Valen> depends on how much you are overspeeding by
[01:33:55] <Valen> and what temps everything is
[01:34:29] <Ekken> so maybe those would be fine with watercooling and quality grease..
[01:34:35] <Valen> should at least be a couple of hundred hours
[01:34:45] <Valen> if you use oil it'll improve the life a fair bit
[01:34:49] <Valen> and rated speed
[01:35:23] <Valen> (rather than grease)
[01:36:16] <Ekken> ~85$ SKF for lower bearing would be 9600rpm, with -20% derating it would be ~7700rpm
[01:36:25] <Ekken> So maybe it would be just fine
[01:37:13] <Ekken> I was thinking to use this: http://www.klubersolutions.com/pdfs/Isoflex%20NBU%2015.pdf
[01:37:39] <Valen> its just a question of viscosity mainly
[01:38:26] <Valen> oils give bearings higher speeds
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[01:38:41] <Valen> air spray oil can almost double the "rated speed" of the bearing
[01:39:03] <Ekken> yep, not sure how I could arrenge it..
[01:39:17] <Valen> basically the "rated speed" is the maximum speed at which (under the standard load) a bearing with a steel shaft and a standard housing will achieve its rated lifetime
[01:39:45] <Valen> milling machine is going to abuse the crap out of the bearing anyway lol more than likley
[01:41:34] <Jymmm> SWPLinux: I am for the moment
[01:42:17] <Ekken> Valen, thanks, I will go for those cheaper ones.. maybe I need to investigate that oil-thing again/more
[01:42:30] <Valen> hobby mill?
[01:42:40] <Valen> like your not using it for production?
[01:43:16] <Ekken> maybe something small scale, not sure yet :)
[01:43:26] <Valen> worry about fancy bearings then
[01:43:37] <Valen> decent cheap ones will probably do the job for the time being
[01:44:29] <Ekken> and I have a better plan for the spindle when I get extra money, so you are right.. again ;)
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[01:56:58] <Valen> we looked at doing belt drive and such and it was just too much of a pain in the butt
[01:57:18] <Valen> the Z axis now works much better without the 100kg of iron hanging off it
[01:59:38] <Ekken> yep, it is..
[01:59:53] <Ekken> I think mine will be ~30kg lighter than stock
[02:02:16] <Valen> our new one weighs 30kg ;->
[02:02:27] <Valen> check the video on the 2nd page
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[02:04:17] <Ekken> how about torque at low speeds? :)
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[02:05:53] <Ekken> ah.. 6000-24000rpm?
[02:08:53] <Ekken> 03:19:29 < Valen> half the bearing is the casting itself
[02:08:58] <Ekken> any pics?
[02:09:13] <Valen> somewhere
[02:09:57] <Valen> got to head off but I'll try and find them later
[02:10:02] <Ekken> http://www.vapourforge.com/mill/zone/HM45_spindle/ that seems to be pretty much same as mine
[02:10:21] <Valen> yeah thats them
[02:11:02] <Ekken> hmm..
[02:12:07] <Ekken> did you tried to use bearing puller?
[02:12:13] <Valen> why?
[02:12:20] <Valen> there is no other half of the bearing
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[02:13:43] <SWPLinux> Jymmm: ah, hi. It's a little late now, I was thinking we could get together for dinner
[02:13:50] <SWPLinux> I'm stuck at SFO tonight
[02:14:01] <Ekken> ok, it just looks like mine and there was.. but can't tell from those pics
[02:16:09] <Ekken> what that phenolic basalt is? :)
[02:19:34] <Ekken> maybe I should make a topic to cnczone also.. although nothing to show yet :P
[02:19:41] <Ekken> maybe a stand tomorrow
[02:30:33] <Jymmm> SWPLinux: Oh, I didn't know you were even in town
[02:48:50] <Emcrules_Laptop> How would i go about getting the comp file for a MUX 8. I would like to use it as an example to build a grecode switch decoder
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[02:57:26] <pcw_home> [emc2.git] / src / hal / components / mux8.comp
[03:00:51] <ries> where can I find the RTA requirements to run 2.4.6? I just compiled that version and I get something like parallel_port.ko symbol not found
[03:02:07] <ries> hal_parport.ko
[03:04:31] <Emcrules_Laptop> PCW: OK so i have to use GIT
[03:06:32] <pcw_home> Wel no but you do need the sources and the development tools (I guess th package manager can get those)
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[03:43:09] <SWPLinux> Jymmm: I wasn't supposed to be :)
[03:43:31] <SWPLinux> I'm supposed to be on the way home from LAX, but it didn't work out so well
[03:43:35] <SWPLinux> bbiab
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[06:00:49] <toastydeath> anyone know much about cms
[06:01:19] <toastydeath> I have a friend who does online multi-author rpg type stuff and right now it's all done by manually editing html
[06:03:45] <Valen> what flavour
[06:04:45] <toastydeath> ?
[06:05:00] <Valen> theres lots of cmsssses out there
[06:05:11] <Valen> what does he want to actually do?
[06:05:43] <toastydeath> she wants to be able to run games, which are like a set of blog posts
[06:05:54] <toastydeath> and manage who writes for each player
[06:06:01] <toastydeath> sort of like blog software, i guess
[06:06:10] <toastydeath> i might need to get more requirements before searching
[06:06:23] <Valen> has she looked at actually using something like word press then?
[06:06:36] <toastydeath> no, currently they use an install of livejournal
[06:07:07] <toastydeath> but the management is apparently a nightmare
[06:07:17] <toastydeath> i need to do more requirements stuff first, i think
[06:07:29] <toastydeath> i was just curious if anyone knew, off the top of their head, software that was good for collaborative writing of that kind
[06:07:36] <Valen> wiki?
[06:09:15] <Valen> thats kind of the ultimate "collaboration" thing
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[06:15:53] <toastydeath> yeah, true
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[07:06:53] <Jymmm> SWPLinux: where ya at?
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[14:43:57] <skunkworks> This is cool http://www.youtube.com/watch?v=PWpUsra3Gh0
[14:45:25] <skunkworks> or this... http://www.youtube.com/watch?v=e35vg0pfjEA
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[15:49:17] <JT-Shop> Sweet a failed tool change on the CHNC worked perfectly :)
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[15:51:23] <skunkworks> ?
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[15:55:09] <JT-Shop> sometimes when the turret is cold it misses a stop. before Axis would lock up and I'd have to reboot to recover... now in 10 seconds without success it aborts the tool change and I can recover
[15:57:39] <skunkworks> are you using mhaberler iocontrol 2.0?
[15:58:46] <JT-Shop> no, master
[15:59:30] <skunkworks> ah - ok.
[16:00:06] <skunkworks> I always saw the delay. never saw the lockup.
[16:00:57] <skunkworks> but I would have to exit emc for it to run correctly after that.
[16:02:29] <JT-Shop> let me see what pin I use to tell EMC to abort
[16:02:48] -!- nullie [nullie!~nullie@nullie.telenet.ru] has joined #emc
[16:04:41] <JT-Shop> in my ladder I have a timer and if it times out it uses halui.program.stop to abort the tool change
[16:04:52] <skunkworks> nice!
[16:05:05] * skunkworks needs to clean up his ladder
[16:06:39] <JT-Shop> I was doing a tool change from the MDI window and it even worked there
[16:09:19] <mhaberler> I'm around for an hour if you need me
[16:09:53] <JT-Shop> grab a hammer and come on over then
[16:10:11] <mhaberler> need to read the log before grabbing tools
[16:10:31] <JT-Shop> :)
[16:15:01] <mhaberler> ok. Hamer in hand.
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[16:32:06] <JT-Shop> now it is raining so framing is postponed :/
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[16:35:18] <MOGLI> hello can any body help me with "Tangential tool configuration" i found mailing list archive since jan 2009 so if any further development regarding that???
[16:35:20] <MOGLI> plz help
[16:36:20] <MOGLI> any post processor for "Tangential tool configuration"
[16:38:20] <MOGLI> helllo anybody here.. please help
[16:40:47] -!- nullie [nullie!~nullie@v10-159-230.yandex.net] has joined #emc
[16:40:52] <psha> MOGLI: be patient :) wait for a while - maybe somebody knows
[16:43:53] <MOGLI> sorry psha. i thought my net got disconnect....
[17:01:46] <MOGLI> hello can any body help me with "Tangential tool configuration" i found mailing list archive since jan 2009 so if any further development regarding that???
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[17:08:43] <MOGLI> hello..
[17:09:29] <JT-Shop> must be an echo in here
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[17:29:01] <cradek> the algorithm for doing tangential orientation has been spelled out on the list over and over - someone just has to do it
[17:30:14] <skunkworks> as - say an input filter?
[17:30:39] <cradek> yes if you were ok with parsing gcode
[17:30:55] <cradek> it would be easier to add it to whatever generated your gcode in the first place
[17:31:14] <skunkworks> right
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[17:33:43] <cradek> so far, all the people who have asked about it are not interested in those kinds of answers :-/
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[17:34:31] <micges> logger[psha]: hi
[17:41:50] <dgarr> micges: did you have opportunity to test menu shortcut?
[17:42:46] <micges> dgarr: after restart still there is no menu entry for latencyplot after make install-menus
[17:42:53] <micges> 10.04 rt here
[17:43:44] <dgarr> could you try it and look in ~/.xsession-errors
[17:44:27] <micges> try what? make install-menus ?
[17:45:06] <dgarr> oh sorry, i mis read
[17:50:53] <psha> micges: have you any list widget screenshots around?
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[18:00:09] <psha> micges: have you any list widget screenshots around? (probably that message was lost)
[18:02:24] <JT-Shop> I saw both messages psha
[18:02:53] <psha> JT-Shop: micges [...] has quit [Ping timeout: 276 seconds]
[18:03:08] <JT-Shop> them I don't see :)
[18:03:44] <psha> irssi show everything unless you ask it :) and i don't know how to do that :)
[18:04:36] <JT-Shop> that's why I use Chatzilla cause I know how to make it not show join leave messages :)
[18:05:08] <dgarr> micges_: i think i found my mistak V3 patches:
[18:05:17] <dgarr> for consideration: http://www.panix.com/~dgarrett/stuff/latencyplot_to_menuV3.mbox
[18:06:26] <psha> JT-Shop: heh, my choice is limited to console clients :)
[18:06:47] <psha> that's irssi, bitchx and couple of smaller players
[18:07:28] <psha> but really join/leave don't disturb - they are treated different then messages
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[18:15:36] <atmega> ircII-epic
[18:15:43] <atmega> inside screen
[18:20:58] <atmega> gotcha, nowhere.
[18:23:59] <psha> atmega: forgot about ircII
[18:24:05] <psha> but have not used it
[18:24:32] <psha> screen is a piece of crap! it eats ^A!
[18:26:56] <atmega> change it
[18:27:15] <atmega> escape ^Ee
[18:32:08] <psha> whoa
[18:32:22] <psha> but still - ^E is as useful as ^A :)
[18:36:38] <atmega> I live without them
[18:37:12] <atmega> I changed one to E so I could use it inside another screen that uses A
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[18:40:31] <psha> wise :)
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[18:48:47] <IchGuckLive> hi all on G41/G42 does EMC2 realy request to be >tooldiameter offsetet at start
[18:49:32] <atmega> I think the first move must be > d/2
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[18:50:07] <IchGuckLive> thats iso
[18:50:23] <IchGuckLive> but i got a MSG >tooldiameter
[18:51:51] <atmega> I no longer remember what the specifics are. I do know what to do to make it work though
[18:52:16] <IchGuckLive> Agree
[18:52:39] <IchGuckLive> but i want to mill a O-Ring sealring,groove
[18:53:11] <atmega> the lead in moves can be in air, with rapids
[18:53:17] <IchGuckLive> 3,5mm width with a 3mm catter
[18:53:20] <IchGuckLive> cutter
[18:53:32] <IchGuckLive> thats not gone work
[18:53:52] <IchGuckLive> with cutter compensation
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[18:55:46] <IchGuckLive> i go for a 3path G40
[18:57:44] <JT-Shop> a circular o-ring groove or a profile?
[18:58:03] <IchGuckLive> circular
[18:58:15] <IchGuckLive> as a normal seal is
[18:58:48] <JT-Shop> you don't need to use cutter comp for that unless you just want to
[18:59:11] <IchGuckLive> as e Experience i tryd
[19:02:24] <JT-Shop> in that case yes
[19:04:45] <Jymmm> If you mounted a thermal switch to (lets say) a copper plate... would that make it more or less sensitive?
[19:05:46] <IchGuckLive> more to Climbing less to lowering Temp
[19:06:03] <Jymmm> If you mounted a thermal switch to (lets say) a copper plate... would that make it more or less sensitive at reading ambient temp rather than reading the temp of what it's mounted to
[19:06:07] <IchGuckLive> Thin copper Yes to both
[19:07:14] <IchGuckLive> why at all KTY10 does react in 0,1sec
[19:08:32] <Jymmm> a thermal switch seems far simler
[19:08:58] <IchGuckLive> I checkt the LM335 now
[19:09:40] <Jymmm> This is to trigger a gas solenoid
[19:09:50] <IchGuckLive> no difference at 10x10mm copper to the direct mount on a Stepper via AtmelMega8 ADC
[19:12:07] <IchGuckLive> gas solenoid no translation to that by Google
[19:12:19] <Jymmm> valve
[19:14:13] <IchGuckLive> via a LM358 direct Risistor BC tis works
[19:14:54] <IchGuckLive> the LM 335 is liniar Terminal Resistor
[19:15:26] <IchGuckLive> with apoti you can then control the temp to respond
[19:15:56] <Jymmm> can it take 24v@0.7A directly?
[19:16:27] <IchGuckLive> look at datasheetcatalog.com for lm335
[19:16:40] <IchGuckLive> the Transistor shoudt do this
[19:16:47] <IchGuckLive> or use a FET
[19:17:12] <IchGuckLive> or transistor triggers a Relai
[19:18:09] <Jymmm> why would I want to use a relay, when a thermal switch can handle t directly?
[19:20:33] <IchGuckLive> on your Request B) by for today
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[19:29:11] <Jymmm> What voltage/current ratings do PLC's typically have?
[19:30:29] <JT-Shop> 84-260v for AD
[19:31:25] <Jymmm> current?
[19:33:02] <JT-Shop> they don't draw much
[19:33:21] <Jymmm> Sorry, i meant the I/O to control other devices
[19:33:26] <alex_joni> if it's an A/D converter then it's micro-amps
[19:33:49] <alex_joni> Jymmm: then it depends on the unit/ratings
[19:34:06] <alex_joni> there are some with opto's on the outputs, which can sink quite a bit current
[19:34:06] <atmega> and sink vs. source
[19:34:12] <alex_joni> atmega: right
[19:35:48] <alex_joni> but usually not more than 0.5-1A
[19:35:48] <Jymmm> I mean is it <1, 5A, 10A typically?
[19:35:48] <Jymmm> ok
[19:35:48] <JT-Shop> relay outputs can usually do 5 amp at 120v or so
[19:35:54] <Jymmm> Is there such a thing as a cheap PLC?
[19:36:01] <atmega> automation direct
[19:36:08] <Jymmm> Uh oh
[19:36:14] <JT-Shop> Panasonic has one for $100
[19:36:18] <atmega> or ebay something
[19:36:22] <JT-Shop> EMC has a free one
[19:36:33] <alex_joni> depends what you understand by cheap
[19:36:38] <Jymmm> JT-Shop: $100 might work
[19:36:40] <alex_joni> how many i/o's etc
[19:36:48] <Jymmm> alex_joni: 2 to 4 maybe
[19:37:03] <atmega> that's emc plus some glue
[19:37:13] <alex_joni> simple microcontroller + some relays
[19:37:14] <Jymmm> atmega: and a pc
[19:37:31] <atmega> ok, an AVR and some glue
[19:37:40] <Jymmm> can them take the place of a safety relay?
[19:37:50] <Jymmm> s/them/they/
[19:38:07] <alex_joni> neither can
[19:38:20] <Jymmm> ok, nm than
[19:38:24] <Jymmm> then
[19:38:29] <JT-Shop> $30 for an Arduino Uno
[19:38:40] <JT-Shop> NO!
[19:38:51] <alex_joni> if you have some safety regulation you want to obey, then a safety relay is what you need
[19:39:09] <Jymmm> JT-Shop: It's for a fire suppression system
[19:39:34] <Jymmm> alex_joni: No, I was furst considerng a safety relay + timer relay, thught a PLC would be cheaper
[19:40:24] <JT-Shop> Jymmm: I had to say that to keep the safety police off my ass
[19:40:50] <Jymmm> JT-Shop: say what?
[19:41:04] <JT-Shop> just tie a string on your leg and when you run out the door it trips the fire suppression system
[19:41:10] <JT-Shop> NO! < that
[19:42:00] <Jymmm> JT-Shop: Well, if you can find me the mechanical switch to trigger it, ok. so far no luck in finding it under $260
[19:42:22] <atmega> so, you can't afford safety?
[19:42:42] <Jymmm> atmega: not at $260 for a single component, no.
[19:43:06] <atmega> is this just to protect you, or others?
[19:43:18] <Jymmm> the laser primarily
[19:43:38] <JT-Shop> you just push the bottle over and valve breaks off and lets out the gas...
[19:43:49] <Jymmm> JT-Shop: heh
[19:44:05] <Jymmm> JT-Shop: I got a BIG RED BUTTON for that =)
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[20:15:59] <davidf> hi
[20:17:55] <davidf> I am set up to do threading on my lathe. I've been using G76 but now I need to do tapered OD threads - anyone have a suggestion as to best way to do that please?
[20:26:13] <atmega> I just opened a $12 DLINK ethernet card, it has a 4-page, printed GPL statement/license
[20:27:26] micges_ is now known as micges
[20:28:18] <JT-Shop> davidf: you have to use G33 :( and program every pass... and keep in mind the pitch is parallel to the ... goes to look in the manual
[20:29:01] <JT-Shop> here it is "Note: K follows the drive line described by X- Y- Z- and is not parallel to the Z axis."
[20:29:41] <davidf> Hi JT, I was afraid of that. :>)
[20:30:07] <JT-Shop> there has been some talk of changing G76 to to tapered threads...
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[20:30:41] <JT-Shop> davidf: you could make a subroutine to do it without all the programming
[20:31:04] <JT-Shop> have you seen the lathe subroutines on the forum?
[20:31:14] <davidf> Well, not so tough to do. But doing something like the compound rest angle parameter that G76 allows (ie, q-29.5) is rather beyond me.
[20:31:28] <davidf> No haven't seen them.
[20:31:37] <JT-Shop> and dgarr 's ngcgui
[20:31:56] <davidf> nope...
[20:31:59] <JT-Shop> makes a pretty slick setup for a lathe, most ops can be programmed in seconds
[20:32:20] <JT-Shop> and you can combine them to make a full program
[20:32:31] <davidf> a gui, huh? link or searh term pls?
[20:32:44] <JT-Shop> you know where the forum is?
[20:33:30] <JT-Shop> davidf: http://www.linuxcnc.org/component/option,com_kunena/Itemid,20/func,showcat/catid,40/lang,english/
[20:36:44] * JT-Shop is off to homless depot
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[21:09:06] <davidf> ok thanks JT
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[21:20:41] <psha> bb all
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[22:08:19] <skunkworks> http://www.youtube.com/watch?v=QBg2QR8TjdA
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[22:10:41] <micges> skunkworks: great
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[22:30:58] <JT-Shop> cool an EMC bartender
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[22:48:18] <elmo40> so.... anyone know the command L9210 for engraving simple characters?
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