#emc | Logs for 2005-08-29

[00:00:37] <AchiestDragon> although at my current rate of sorting steppers doubt i could get them to move it on the axis
[00:13:24] <robin_sz> hi ...
[00:13:43] <robin_sz> did you chat to the Llanelli guy yet?
[00:14:28] <Jacky^> G night
[00:17:40] <AchiestDragon> no not yet
[00:18:17] <robin_sz> 'k
[00:19:05] <AchiestDragon> but may need biger ones as yet anyway
[00:20:28] <robin_sz> I like Sanyo-Denki H series myself
[00:21:20] <AchiestDragon> unistrut si avalable from most electrical trade supplyers , its strong and easy to work with , seems like its going to make the machine easyer to build than pratting arround with bits of mdf , and trying to get it as strong as possable
[00:22:58] <AchiestDragon> and as i would rather work with aluminium to wood using steel for a frame seems a better option
[00:35:29] <robin_sz> steel is good and cheap
[00:35:43] <robin_sz> the alloy systems are quick and simple to use
[00:35:51] <robin_sz> but low strength and expensive
[00:35:56] <robin_sz> if you are on a budget
[00:36:13] <robin_sz> some 80mm Sq 4mm wall box section is a good start
[00:37:38] <AchiestDragon> unistrut is good , used the stuff before , its strong , basicaly its like 40mm box section
[00:37:54] <AchiestDragon> better still i can get the stuff dilivered :)
[00:37:55] <robin_sz> but ?
[00:38:43] <robin_sz> but its U section?
[00:38:50] <AchiestDragon> its galv coated also
[00:38:58] <robin_sz> a U is nowhere near as strong as a box
[00:39:18] <AchiestDragon> the u is folded back on its self
[00:39:40] <robin_sz> looks like the sort of stuff they make suspended ceilings from
[00:40:15] <AchiestDragon> thay use it for conduit suports , you can walk on the stuff easy
[00:40:24] <robin_sz> mmm ...
[00:40:58] <robin_sz> personally I would just order a 7.5 m lentght of 80x80x3mm box
[00:41:06] <robin_sz> for about 50 quid ..
[00:41:15] <robin_sz> chop it up in the chop saw
[00:41:23] <robin_sz> drill it and weld it up
[00:41:58] <AchiestDragon> the machines only going to have a 600mm * 500mm cutting aria
[00:42:18] <robin_sz> 60x40 box maybe?
[00:42:28] <robin_sz> here
[00:42:40] <robin_sz> * robin_sz throws AchiestDragon a set of keys
[00:42:53] <robin_sz> feel free to use the factory
[00:44:25] <robin_sz> 7.5m of 60x40x3mm is 25 quid
[00:46:10] <robin_sz> the chop saw goes through it like a knife ... 10 seconds to cut it to + - 1mm
[00:46:41] <robin_sz> making a frame would be very simple
[00:46:43] <AchiestDragon> do you have welding equipment
[00:46:58] <robin_sz> only mig to 500A
[00:47:03] <robin_sz> and tig to 750A
[00:48:08] <robin_sz> theres a cnc laser, 50 tonne CNC press and a powder coat plant too
[00:49:55] <robin_sz> theres a pillar drill and the usual slection of angle grinders and stuff for making the welding look half decent afterwards
[00:50:46] <robin_sz> and a big skip to put the first two attempts in :)
[00:50:54] <AchiestDragon> lol
[00:53:07] <robin_sz> well, whatever, if you want to use it ... the offers there
[00:53:34] <AchiestDragon> well if i dont think this design is going to be any better than the last 3 i will try to come up with one that uses the material sizes you have , and then maybe
[00:54:00] <robin_sz> use shop4steel.co.uk to discover steel sizes
[00:54:54] <robin_sz> I dont carry much hollow section .. mainly flat sheet to feed the laser
[00:55:08] <AchiestDragon> but i want to try to do it using off the shelf parts , i dont have a mig here , although its on the list of tools neede long term , my old one got taken
[00:55:31] <robin_sz> * robin_sz recommends Lincoln migs
[00:55:50] <robin_sz> avoid anything with "clarke" or "turbo" written on it
[00:56:04] <AchiestDragon> yes i know
[00:56:16] <AchiestDragon> my old one was a snapon
[00:56:35] <robin_sz> I bought a 500A Murex Transmig for �200 on Ebay
[00:56:42] <robin_sz> 3 pahse though
[00:56:52] <robin_sz> but a VERY nice unit
[00:57:28] <robin_sz> the small Lincoln units are wonderful too
[00:57:43] <AchiestDragon> i keep looking , but dont have 3 phase though and not easy getting a good one at the right price on ebay for single phase stuff
[00:57:55] <robin_sz> * robin_sz nods
[00:58:29] <robin_sz> my little lincoln is single pahse, ebay for �250 ... they are nearly 800 new
[00:58:43] <AchiestDragon> could get a single to 3 phase converter , but dont like the idea of pulling 30A from a 13a socket
[00:58:56] <robin_sz> yeah, no point for mig
[00:59:46] <robin_sz> single to 3p gainssomething for motors
[00:59:51] <robin_sz> but mot for welding
[01:00:35] <AchiestDragon> or fitting 3 mains plugs to the end , one here , and one to the house on ether side
[01:00:38] <AchiestDragon> :)
[01:00:43] <robin_sz> heh
[01:01:06] <robin_sz> the 750A tig is single pahse
[01:02:20] <robin_sz> well, sits across two lives of 415v and pulls 95A
[01:03:21] <Jymmmm> Now that I've disabled X from starting automatically, anyone knwo why I can't run emc from an acnt w/o being root?
[01:03:35] <robin_sz> mmm
[01:03:38] <robin_sz> lets see ...
[01:03:53] <robin_sz> is it because you need to load a bunch of modules into the kernel
[01:04:32] <Jymmmm> It worked before when I logged in as a normal acnt when X started automatically.
[01:04:46] <robin_sz> and logged you in as root?
[01:04:50] <robin_sz> or single user mode?
[01:04:59] <Jymmmm> nope, just my normal acnt
[01:05:06] <Jymmmm> whoami jim
[01:05:12] <robin_sz> well
[01:05:33] <robin_sz> the script must have been running as root I guess
[01:05:48] <robin_sz> using sudo?
[01:05:49] <Jymmmm> what script was running at root?
[01:06:01] <robin_sz> emc.run
[01:06:14] <robin_sz> sudo emc.run maybe?
[01:06:30] <Jymmmm> I (personally) never used sudo. Just clicked on the icon on the desktop.
[01:06:38] <robin_sz> or was the sticky bit set?
[01:06:58] <Jymmmm> The only thing I did was remove KDM from rc.d
[01:07:08] <robin_sz> ahh, but what did the icon do?
[01:07:20] <robin_sz> was the icon set to sudo the script?
[01:07:26] <Jymmmm> started emc as far as I know.
[01:07:36] <robin_sz> yes, but waht command
[01:07:40] <robin_sz> did you look?
[01:07:56] <robin_sz> does it do sudo emc.run or just emc.run
[01:08:39] <Jymmmm> even so, why would me logging in as myself in X that starts automatically -vs- starting manually change permissions wise.
[01:08:50] <robin_sz> nothing
[01:08:57] <robin_sz> as I said ...
[01:09:11] <robin_sz> if the icon ran sudo emc.run that would work
[01:09:25] <robin_sz> whereas plain emc.run as Jim would not
[01:09:36] <Jymmmm> Well, I never changed the icon, so it should STILL run sudo emc.run
[01:09:51] <robin_sz> well click on the icon then!
[01:09:54] <Jymmmm> Jymmmm is now known as Jymmm
[01:10:02] <Jymmm> it doesn't work.
[01:10:07] <robin_sz> hmmm ...
[01:10:08] <Jymmm> it starts, then quits
[01:10:25] <Jymmm> if I login as root, startx, then click it works.
[01:10:38] <robin_sz> yeah
[01:10:44] <robin_sz> so ...
[01:11:03] <Jymmm> So, if I login as myself when X started automatically, whats the difference is what I dont get.
[01:11:11] <robin_sz> when X was started as root from rc.d
[01:11:17] <robin_sz> something magic must happen
[01:11:29] <robin_sz> is the sticky bit set on emc.run?
[01:13:45] <robin_sz> ls -l emc.run
[01:14:53] <robin_sz> look for a big S after rw
[01:15:02] <Jymmm> no
[01:15:09] <robin_sz> 'k
[01:15:48] <robin_sz> well, I sus[ect it is to do with X being started as root, which is what happens from rc3.d
[01:16:19] <Jymmm> so, ANYTHING that starts as init, is always started as root?
[01:16:26] <robin_sz> hey, you didnt remove the kdm script from rc.d did you
[01:16:46] <robin_sz> yes, of course the script might change itself to a different uid
[01:17:07] <Jymmm> how do you LIST your history?
[01:17:29] <Jymmm> not just up arrow, but actually list it all
[01:17:53] <Jymmm> doh.... history
[01:18:11] <robin_sz> cd ; less .bash_history will work too
[01:18:33] <Jymmm> no, literally 'history'
[01:18:37] <Jymmm> <cr>
[01:18:47] <robin_sz> yeah I know
[01:18:50] <Jymmm> took a shot in the darl and it worked
[01:19:07] <robin_sz> history | less
[01:19:11] <Jymmm> yep, I guess I did..... update-rc.d -f kdm remove
[01:19:20] <robin_sz> oops
[01:19:27] <robin_sz> OK, quick rc.d lesson
[01:19:36] <robin_sz> leave the scripts in rc.d
[01:19:51] <robin_sz> type runlevel to find out waht runlevel you are in
[01:20:04] <Jymmm> N 2
[01:20:11] <robin_sz> ok
[01:20:20] <Jymmm> wtf is 'N' ?
[01:20:26] <robin_sz> so in rc2.d you will find symlinks ot stuff in rc.d
[01:21:04] <robin_sz> so if you dont want X to run when you arein runlevel 2, just remove the symlink from rc2.d
[01:21:14] <robin_sz> S30kdm for eaxample
[01:21:26] <robin_sz> S are starts .. K are stops
[01:21:44] <robin_sz> the numbers give the order in which they get run
[01:21:59] <robin_sz> (so netowrking comes up before apache for example)
[01:22:05] <robin_sz> OK?
[01:22:23] <Jymmm> ok. So why does NTP start before networking =)
[01:22:28] <Jymmm> lol
[01:22:57] <robin_sz> bad sysadmin, no cookie.
[01:23:13] <Jymmm> alright, so when we are leaving rc2 the K's are executed
[01:23:19] <robin_sz> right
[01:23:36] <Jymmm> so I can have S1blah and K1blah as well
[01:23:44] <robin_sz> sure
[01:24:12] <robin_sz> the ACTUAL scripts go in init.d or rc.d on some systems
[01:24:23] <Jymmm> BDI 420
[01:24:25] <robin_sz> just symlinks in the rc2.d etc
[01:24:37] <robin_sz> god knows on BDI .. not played with it in ages
[01:24:43] <robin_sz> is it debain based now?
[01:24:45] <Jymmm> debain sarge
[01:24:51] <Jymmm> yeah
[01:25:03] <Jymmm> well, apt-blah works at least =)
[01:25:29] <robin_sz> well, I dont have /etc/rc.d/ on my sarge box
[01:25:50] <robin_sz> all the scripts are in /etc/init.d
[01:31:20] <robin_sz> right .. beditime
[01:31:29] <Jymmm> c ya
[01:31:32] <robin_sz> night
[01:31:40] <robin_sz> I'll wave at you on Tueday
[01:32:01] <robin_sz> gonna be in some place called "new york" wherever the hell that is
[02:09:05] <Jymmmm> Jymmmm is now known as JymmmEMC
[02:09:45] <JymmmEMC> * JymmmEMC slaps pc_op around with a small 50lb Unix Manual
[02:09:53] <JymmmEMC> * JymmmEMC slaps pc_op around with a small 50lb Unix Manual
[02:10:03] <JymmmEMC> well, that was lame
[02:12:02] <JymmmEMC> les: toolchanger.txt
[02:34:26] <Jymmm> Jymmm is now known as Red70sShow
[02:34:27] <Red70sShow> Red70sShow is now known as Jymmm
[02:37:22] <Jymmm> Jymmm is now known as MrAsshole
[02:37:25] <MrAsshole> MrAsshole is now known as Jymmm
[04:34:40] <lilo> [Global Notice] Hi all. Just a reminder. If you've been experiencing private message spam, or if your channel has been hit with this problem, please take a look at http://freenode.net/faq.shtml#spambots .... thank you!
[06:12:06] <lilo> [Global Notice] Hi all. We're working on a patch related to our latest spambot invasion. This will entail our having to restart the servers when it's ready. We'll keep you posted.
[10:26:40] <Yuga> gosh... wake up all u lazi ppl
[12:36:28] <lilo> [Global Notice] Hi all. We'll be reupping the servers in just a few minutes. Please bear with us.
[12:43:19] <lilo> [Global Notice] Hi all. Here we go. See you on the other side!
[21:16:42] <robin_sz> 20mm linear bearing might be less hassle than skate wheels
[21:16:50] <robin_sz> you see them on eBay from time to time
[21:17:29] <AchiestDragon> maybe , but i've already made the bearing holders so not a problem for this one
[21:18:18] <AchiestDragon> if it will cut MDF then may use it to make a better machine
[21:18:52] <robin_sz> oooh ..
[21:18:53] <robin_sz> http://cgi.ebay.co.uk/FRANKE-LINEAR-BEARING-ENGINEER-SLIDE-CONVEYOR_W0QQitemZ7541439924QQcategoryZ1267QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
[21:19:22] <robin_sz> they look like .. 4 prescision ball bearings in a slide .. like err, 4 skate weheel
[21:19:23] <robin_sz> s
[21:19:31] <robin_sz> 13 for 50 quid ...
[21:20:56] <robin_sz> looks like theyd need to be mounted in pairs
[21:24:02] <robin_sz> ahh, might need their special track .. but interesing design
[21:32:24] <Jacky^> * Jacky^ need to choose slides for my next machine
[21:33:00] <Jacky^> what you like for woodworking ? KK or KS type ? http://www.hiwin.com/ls/index.html
[21:33:45] <Jacky^> should KK serier be ok ?
[21:37:11] <Jymmm> apt-get upgrade konqueror
[21:37:27] <Jymmm> doh... wrong window
[21:37:54] <Jacky^> apt-get install mozilla-firefox ;)
[21:38:20] <Jymmm> well... I was able to upgrade the ram on my laptop from 128 to 256 for $20 =)
[21:38:35] <Jacky^> nice
[21:39:10] <Jacky^> old ram mantain high cost ..
[21:39:11] <Jymmm> Yep... had 2 64MB, and 2 128MB are in the mail. Then I'll just sell the two 64MB's
[21:39:44] <Jacky^> good
[21:40:34] <Jymmm> I MIGHT even be able to sell them for $20, then the upgrade will be for free!
[21:41:38] <Jacky^> :D
[23:02:47] <Jacky^> damn..
[23:02:53] <Jacky^> Jymmm: are you ?
[23:03:12] <Jacky^> you around ?