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[00:49:11] <Jymmm> Why would I create a circle with arcs over beziers?
[00:54:39] <KimK> Jymmm: "over" as in "in preference to"? "over" as in "guided by"? Sorry, I'm not clear what you mean.
[00:55:37] <Jymmm> preference
[00:55:49] <Jymmm> s/over/instead of/
[00:56:19] <Jymmm> what benefit is there to one versus the other?
[00:56:27] <KimK> OK. Because arcs let you specify a perfect circle with one command?
[00:56:46] <Jymmm> what about speed?
[00:57:32] <Jymmm> and it would be either 4 arc or 4 bezier to make one circle.
[00:58:09] <KimK> For your laser? You're thinking about having to maintain a minimum speed? Maybe I'm not the guy to ask, then.
[00:58:51] <KimK> But there's always G64 P0.001, or whatever.
[00:59:08] <Jymmm> That's ok =) It's all good. not to maintain a specific speed, but to complete the job the fastets
[00:59:12] <Jymmm> fastest
[00:59:51] <KimK> Maybe try it both ways and see?
[01:00:51] <Jymmm> Well, this is an outsourced job as it's in SS, not something my lil laser can do =)
[01:01:17] <KimK> How did you get to 4-arcs (what, 90 deg each?), is that caused by some CAD package?
[01:01:35] <Jymmm> it's ok, I'm not gonna sweat the small shit
[01:01:48] <KimK> Ah, OK.
[01:01:49] <Jymmm> Yeah, exactly. it's an option 4 arcs or 4 beziers
[01:02:59] <KimK> Well, glad you've got business, anyway, that's a good thing in this economy.
[01:03:29] <KimK> Back in a bit, I'll scroll back.
[01:03:39] <Jymmm> KimK: Maybe, it's actually bringing a new product to market.
[01:03:43] <Jymmm> k
[02:03:41] <DJ9DJ> moin
[02:15:26] <skorket> I'm still in the process of calibrating my machine, but I notice that when the feed rate is 100 (mm/min, though this is pretty meaningless without calibration) it runs well, but when I put it down to 50, it becomes much louder and I can feel the vibration in the threaded rod
[02:16:28] <skorket> so, 1) is this normal? 2) is the vibration going to be a problem for the work? 3) should I not be going so slow? 4) would this be solved by microstepping?
[02:16:52] <skorket> I would appreciate any other suggestions as well. I'm really new to all of this
[02:17:03] <Jymmm> are you half stepping now?
[02:17:25] <Jymmm> 8 or 10x microstepping wouldn't hurt.
[02:17:26] <skorket> No
[02:17:53] <Jymmm> skorket: You are going to have to be more forthcoing with info, I can't guess at what your setup is.
[02:18:53] <skorket> oh, sorry. I have a Zen toolworks 7x7 frame, I have sparkfun 400 steps/rev nema17 motors (1.7a, 3v), I have a4988 pololu drivers and an arduino running grbl
[02:19:06] <skorket> motors are being run at 24v
[02:21:03] <Jymmm> Um, so you are NOT running LinuxCNC?
[02:21:55] <skorket> this is true...I hope it's alright that I'm asking in this forum
[02:24:39] <Jymmm> Well, while there are ppl here that are overall knowledgble on CNC, this is focused on LinuxCNC. Most dont have specific info on GRBL, it's capabilities, downfalls, etc.
[02:25:47] <skorket> so you think it's a grbl issue?
[02:26:23] <Jymmm> I really have no idea. microstepping is worth a try.
[02:26:48] <skorket> alright, let me try half stepping
[02:26:56] <Jymmm> I'd try 8x
[02:45:17] <skorket> wow, I think that did it
[02:45:22] <skorket> I upped it to 16x
[02:46:04] <Jymmm> cool
[02:46:13] <skorket> it's going a lot slower too...
[02:46:34] <Jymmm> sure, I suggested 8x
[02:47:16] <skorket> so a pulse is now interpreted as being going into an intermediate microstep? aren't there problems with torque/accuracy?
[02:47:53] <Jymmm> not really
[02:51:39] <skorket> I'm really excited. Things are shaping up...
[02:52:10] <Jymmm> congrats
[02:52:27] <skorket> are there any repositories for gcode programs? Or a list of some standard test gcode programs?
[02:52:55] <Jymmm> In LinuxCNC there are.
[02:53:51] <skorket> link?
[02:54:08] <Jymmm> http://linuxcnc.org
[02:54:15] <skorket> ok, ok, thanks
[02:54:45] <Jymmm> np
[04:43:31] <gallenat0r> for a ball screw 3000mm long, should I go for 32mm or is 25mm enough?
[04:59:30] <archivist> there are calculations for whip at rpm that may help choose
[05:00:33] <archivist> http://www.roymech.co.uk/Useful_Tables/Drive/Shaft_Critical_Speed.html
[05:00:41] <gallenat0r> thanks :)
[05:00:43] <r00t4rd3d> you got a 10' table?
[05:01:33] <gallenat0r> got no table yet, but it'll be 3000x1500mm'ish
[05:01:47] <archivist> so thicker shaft is stiffer and can rotate faster before you reach critical
[05:02:55] <archivist> but, if you rotate the nut and keep the screw stationary you can use the thinner
[05:03:23] <archivist> choices, you have them
[05:10:30] <gallenat0r> got the spindle last week, so I'll build the table around that I think
[05:11:45] <archivist> building around available parts can be fun, that is how my 5 axis machine "evolved"
[05:12:14] <archivist> and why it is a "bit" fugly
[05:12:43] <gallenat0r> got any pics?
[05:13:33] <archivist> http://www.archivist.info/cnc/stage8/
[05:17:13] <gallenat0r> nice to see it evolving :)
[05:19:36] <archivist> I now look at castings in a machine with a view to re-purposing
[05:21:19] <archivist> I have a rectangular cast iron drill column that will probably become the column for the 5 axis
[05:48:14] <r00t4rd3d> http://www.ebay.com/itm/150mW-650nm-655nm-660nm-Red-Lazer-Laser-Dot-Module-Diode-with-Driver-/170680798038?pt=LH_DefaultDomain_0&hash=item27bd5e4b56
[05:49:12] <r00t4rd3d> think i am going to get one of those
[05:49:39] <r00t4rd3d> then i can burn stuff
[05:54:13] <r00t4rd3d> http://www.ebay.com/itm/NEW-650nm-655nm-660nm-Red-250mW-Laser-DOT-Diode-Module-/170679009589?pt=LH_DefaultDomain_0&hash=item27bd430135
[05:54:13] <r00t4rd3d> there we go
[05:56:18] <r00t4rd3d> i wonder how many mw you need to easily cut 1/8" plywood
[05:57:50] <r00t4rd3d> then how do you get the laser to turn on and off at the appropriate times.....
[05:59:01] <r00t4rd3d> z axis directional pin
[06:22:45] <r00t4rd3d> http://www.liveleak.com/view?i=835_1344412426
[06:22:52] <r00t4rd3d> i could see that coming a mile away.
[06:27:21] <r00t4rd3d> pilot was lucky he didnt kill them all
[06:44:39] <r00t4rd3d> 36 points on google , gold!~
[06:46:40] <r00t4rd3d> http://i.imgur.com/SV3kW.jpg
[07:20:32] <amaldo> lall
[07:38:10] <alex_joni> mhaberler: now I'm hungry :/
[07:38:27] <alex_joni> err that was for -devel
[07:39:12] <r00t4rd3d> thats why we still on 10.04, nothing but food talk going on over there?
[07:39:39] <archivist> alex_joni, yesterday I was moaning about my isp speed, today a letter, finally moving to adsl2
[07:40:55] <r00t4rd3d> i say we all chip in on a warehouse in kansas
[07:41:14] <jdh> would that involve living in, or visiting kansas?
[07:41:37] <r00t4rd3d> living
[07:41:56] <jdh> I'm sure there are worse places. Siberia perhaps.
[07:42:14] <r00t4rd3d> cnc machines and google fiber
[07:42:50] <jdh> have you considered actually leaving the basement and going outside sometime?
[07:43:44] <r00t4rd3d> i normally work 50 hour weeks :/
[07:43:57] <jdh> who doesn't?
[07:44:13] <r00t4rd3d> im not a basement dweller.
[07:45:02] <jdh> that was a joke
[07:45:58] <r00t4rd3d> wish i lived in the basement, alot cooler down there
[07:46:04] <r00t4rd3d> too many bugs though
[07:48:19] <r00t4rd3d> ive seen some spiders down there this year i could feed to a small african village.
[07:48:38] <r00t4rd3d> probably with seconds...
[08:26:44] <alex_joni> archivist: yay
[08:26:53] <alex_joni> seems someone else is reading the lcnc logs :D
[09:12:17] <ssi> I need to get my hands on a chuck for my HNC
[09:12:37] <ssi> and maybe a second turret top
[09:19:35] <JT-Shop> in ubuntu 10.04 add to favorites fails to remember when xchat is started again. Is there a fix for this?
[09:19:35] <JT-Shop> <bviktor> yeah, erase ubuntu from all drives
[09:19:50] <JT-Shop> what quality help you get in #xchat
[09:21:24] <cradek> eh don't blame the whole channel
[09:21:36] <cradek> every channel has one of those
[09:22:21] <Jymmm> JT-Shop: This *IS* IRC after all, what did you expect, a cookie?
[09:22:28] <JT-Shop> I finally did get an answer from the same guy
[09:22:40] <cradek> and Jymmm proves my point
[09:22:58] <cradek> cool, so what's wrong? (what's a favorite in irc?)
[09:23:29] <JT-Shop> when you load xchat it remembers the channels you want to be in
[09:23:41] <JT-Shop> except in Ubuntu 10.04
[09:23:41] <cradek> ah
[09:24:25] <Jymmm> I wasn't being funny.
[09:24:44] <JT-Shop> they did provide instructions for getting the latest version as this one is 4 years old they said
[09:24:53] <JT-Shop> http://fpaste.org/R8Fx/
[09:25:10] <Jymmm> Most of IRC is just chaotic. Freenode is more of the exception.
[09:25:27] <JT-Shop> #xchat is in Freenode
[09:25:40] <cradek> JT-Shop: well that'll fuck up your packages and is the kind of advice given by someone with a grudge :-/
[09:25:46] <JT-Shop> I didn't expect this answer <bviktor> yeah, erase ubuntu from all drives
[09:25:54] <cradek> JT-Shop: did you try enabling backports and see if you get an update?
[09:26:05] <JT-Shop> no, I'll try that
[09:26:21] <cradek> did you find a bug report saying what version fixes the problem?
[09:26:43] <JT-Shop> I did find a bug report but no reply
[09:26:53] <cradek> ok, so it might not be fixed
[09:27:57] <cradek> THAT IS NOT TEH LATEST VERSION HURF DURF != "we fixed that in v5.6.7!"
[09:28:12] <Jymmm> JT-Shop: When layering sheets in waterjet, the abrasive has a hard time getting where it needs to be.
[09:28:41] <JT-Shop> ok, I didn't know
[09:28:54] <JT-Shop> doesn't seem to be any backports for xchat
[09:29:05] <Jymmm> JT-Shop: Me neither, just what the guy said when I inquired.
[09:29:24] <JT-Shop> can't hurt to ask
[09:29:33] <Jymmm> JT-Shop: at least when the sheets are in the 0.024" range
[09:30:14] <Jymmm> JT-Shop: Yeah. I sent off the RFQ after 5hr ago, so we'll see.
[09:30:29] <Jymmm> JT-Shop: He said laser far better in this respect.
[09:30:49] <cradek> http://freecode.com/projects/xchat/releases
[09:31:04] <cradek> if this is correct, 2.8.6 (the version in 10.04?) is from 2008 and there has been one release since then
[09:31:27] <cradek> you can see the release notes but there's not much in them
[09:31:38] <cradek> "many minor bugs were fixed" is a lousy release note :-(
[09:31:47] <JT-Shop> LOL yea
[09:32:06] <JT-Shop> the windows version went to payware
[09:32:15] <cradek> not that I haven't written it a few times!
[09:32:26] <cradek> I always knew while doing it that it was lousy.
[09:32:53] <JT-Shop> and so far xchat is the only one that seems to work with my satellite connection
[09:33:51] <JT-Shop> http://xchat.org/compiling/
[09:33:57] <cncbasher_> jt: have you try'd quassel irc ?
[09:34:06] <JT-Shop> not yet
[09:34:28] <Jymmm> I want to make a pair of adapters that would allow me to use a normal 120VAC extension cord for use with 12VDC stuff. What would be the "safest" way of wiring a 3 prog connector?
[09:35:01] <cradek> http://sourceforge.net/tracker/index.php?func=detail&aid=2083155&group_id=239&atid=100239
[09:35:10] <cradek> looks like it might be fixed in 2.8.8 released 2010
[09:36:00] <cradek> here are lucid debs a kind person built:
https://launchpad.net/~jensmaucher/+archive/ppa/+sourcepub/1163692/+listing-archive-extra
[09:36:11] <Jymmm> pos/neg == neutral/ground ???
[09:36:43] * JT-Shop bows to the google master today
[09:37:12] <cradek> heh
[09:38:23] <Jymmm> Is there such a thing as a circuit breaker that fits into a single gang box?
[09:38:59] <JT-Shop> yes a panel mount circuit breaker will mount to the cover
[09:38:59] <cradek> I've definitely seen one outlet + one screw-in fuse in a single box, very old
[09:39:11] <r00t4rd3d> Jymmm, cheater breaker
[09:39:35] <r00t4rd3d> http://www.handymanclub.com/Portals/0/activeforums_Attach/Breakers.JPG
[09:39:38] <r00t4rd3d> cheater on right
[09:39:50] <L84Supper> there are low cost 2 pole single breaker panels for AC disconnects
[09:40:27] <Jymmm> JT-Shop: like this ?
http://www.electronicplus.com/images/products/551601.jpg
[09:40:35] <JT-Shop> Jymmm, is this for your 12v application
[09:40:52] <JT-Shop> yea, that will work too
[09:41:17] <cradek> if it's DC you need a special type of breaker
[09:41:19] <Jymmm> JT-Shop: oh gawd no.... male/male to reverse feed from generator to circuit
[09:41:26] <JT-Shop> http://www.mcmaster.com/#standard-circuit-breakers/=irdaxn
[09:41:57] <JT-Shop> look at panel mount breakers and some are ac/dc rated
[09:42:47] <Jymmm> JT-Shop: Cool, for the DC thing I was just thinking inline fuses, but I guess a breaker would be ok.
[09:43:02] <JT-Shop> fuse would be cheaper
[09:43:10] <cradek> DC breakers are weird, rare, and expensive
[09:43:12] <L84Supper> Jymmm: did you need a single position panel as well?
[09:43:15] <cradek> yeah fuses work great
[09:43:22] <r00t4rd3d> you can use a switched outlet with fuse too
[09:43:44] <r00t4rd3d> http://www.thelumberlab.com/wp-content/uploads/2011/09/Finished_30_grit.jpg
[09:43:46] <r00t4rd3d> like that
[09:43:56] <JT-Shop> Rocker and Push-Button Style—Mount in a 1.77" Lg. × 0.85" Wd. panel cutout. Rated 240 VAC or 60 VDC. $20
[09:43:56] <Jymmm> L84Supper: for the AC, I was just going to use a single gang weatherproof box and add a dual CB.
[09:44:44] <JT-Shop> a blade type fuse holder and a fuse is cheaper
[09:46:18] <Jymmm> JT-Shop: two projects; one is DC (fuse), the other is feeding the generator into a circuit in the house using a male-to-male adapter using a weather proof box to hold circuit breakers.
[09:47:09] <Jymmm> aka ghetto transfer switch
[09:47:19] <JT-Shop> for your generator you unplugging the dryer then using a male / male cord?
[09:47:42] <jdh> I think Male/Male cords are illegal in most states.
[09:48:00] <Jymmm> JT-Shop: Well, 120VAC, but basically yes. (When I do get a 220VAC gen)
[09:48:01] <r00t4rd3d> http://www.ebay.com/itm/Bussmann-BP-SRU-BPSRU-Fuse-Outlet-/370590500791?pt=LH_DefaultDomain_0&hash=item5648ea47b7
[09:48:24] <Jymmm> jdh: correct, hense the term "ghetto transfer switch"
[09:48:56] <r00t4rd3d> that fuse outlet fits in a single gang
[09:49:20] <JT-Shop> the 120v circuit will need protection between the generator and the circuit
[09:50:42] <Jymmm> JT-Shop: (Male) =}-------[ single gang box with circuit breakers]---------------{= (Male)
[09:51:05] <JT-Shop> yea
[09:51:20] <JT-Shop> only need one breaker
[09:52:23] <JT-Shop> I guess I need to uninstall xchat 2.8.6 before 2.8.8 will install it gives me a "breaks existing package" error
[09:52:30] <Jymmm> JT-Shop: Well, since I'm mucking around where I shouldn't be, I figure it might be better to protect both neut and hot in case the house wiring is fubared.
[09:52:41] <cradek> hm, I'd expect it to just update
[09:53:02] <cradek> what's the whole message?
[09:53:25] <JT-Shop> no, Error: Breaks existing package 'xchat' dependency xchat-common (= 2.8.6-4ubuntu5)
[09:54:25] <JT-Shop> Jymmm, you just need a breaker on the hot
[09:54:25] <cradek> hmm
[09:54:45] <cradek> perhaps add the ppa, instructions here:
https://launchpad.net/~jensmaucher/+archive/ppa
[09:54:48] <JT-Shop> that was from this xchat-common_2.8.8-0ubuntu1_all.deb (1.1 MiB)
[09:54:49] <cradek> then maybe apt can fix it for you
[09:55:21] <JT-Shop> ah ok
[09:55:53] <Jymmm> JT-Shop: Right, but if someone wired the 50yo 2 prong house outlet reversed, then 'hot' may not be protected is what I was thinking.
[09:56:16] <cpresser> even debian has newer packages :)
http://packages.debian.org/squeeze/xchat
[09:56:27] <JT-Shop> the hot is protected from the source out
[09:57:13] <Jymmm> JT-Shop: But what if someoen screws up, forgets to turn off the main breaker on the house and the power returns?
[09:57:31] <L84Supper> boom
[09:57:50] <JT-Shop> the lineman you shocked will shoot you full of holes when he recovers
[09:58:03] <JT-Shop> and your generator will die from the overload
[09:58:07] <Jymmm> JT-Shop: besides that =)
[09:58:14] <cradek> yes you *really* don't want to allow that to happen
[09:58:32] <cradek> you could easily kill someone
[09:58:33] <Jymmm> JT-Shop: well, that's why I was thinking two breakers
[09:58:47] <JT-Shop> at my Dad's house I made a slider on the panel so only one breaker could be on
[09:58:58] <L84Supper> DPDT delay relay
[09:59:31] <Jymmm> L84Supper: but how do you prevent the coil from being enegized from the gen?
[09:59:44] <JT-Shop> if you connect your generator to the grid it will get pulled down and the one breaker will trip almost in an instant
[10:00:16] <JT-Shop> but like cradek said you just DON'T do that
[10:00:47] <Jymmm> JT-Shop: Ok, so having two breakers serves ZERO purpose at all in this respect? Even if wiring is reversed, etc?
[10:01:06] <JT-Shop> yea
[10:01:38] <Jymmm> JT-Shop: Ok, just doesn't "sound right" is all.
[10:02:00] <L84Supper> Jymmm: will any motor loads be running off the generator?
[10:02:18] <Jymmm> L84Supper: frig, freezer, Window AC.
[10:02:39] <Jymmm> at least one of the above.
[10:02:45] * JT-Shop goes to get a monkey pickel
[10:02:55] <Jymmm> TMI
[10:03:33] <Jymmm> L84Supper: what were you thinking?
[10:05:45] <L84Supper> you'll melt relay contacts if you just switch between generator and power co unless you manage to sync the switching near the zero crossing
[10:06:15] <L84Supper> thats another why you use a transfer switch, some delay plus guaranteed isolation
[10:06:27] <JT-Shop> Jymmm, your generator should have built in circuit protection
[10:07:12] <JT-Shop> your best thing is to just use an extension cord of proper size and plug things in you want powered up
[10:07:59] <Jymmm> L84Supper: Oh no, I completely understand the use of a REAL transfer switch, and that what I'm doing here is pretty much one of the most stupidest things you could do. It's more of a "last ditch effort" sorta thing. Think apartment building as example.
[10:08:17] <cradek> JT-Shop: sudo add-apt-repository ppa:jensmaucher/ppa
[10:08:26] <cradek> JT-Shop: sudo apt-get update; sudo apt-get install xchat
[10:08:44] <JT-Shop> cradek, thanks
[10:10:19] <Jymmm> JT-Shop: It does and I do have three heavy duty 10ga 50ft extension cords.
[10:11:15] <Jymmm> These even have cord-locks built into them; used mostly for stage/theatrical lighting.
[10:11:47] <JT-Shop> cradek, that worked thanks again
[10:12:17] <cradek> welcome, but thanks goes to Jens
[10:12:33] <Jymmm> JT-Shop: While you were MIA...
[10:12:43] <Jymmm> JT-Shop: It does and I do have three heavy duty 10ga 50ft extension cords.
[10:12:58] <JT-Shop> there you go
[10:13:00] <Jymmm> JT-Shop: These even have cord-locks built into them; used mostly for stage/theatrical lighting.
[10:13:17] <L84Supper> I'm waiting see how much fun we get into with the electrical system in China
[10:13:47] <Jymmm> JT-Shop: But, sometimes getting it to it's intended target (freezer) is difficult and can take more than 150ft
[10:14:45] <JT-Shop> just don't open the freezer and it will be ok for quite some time
[10:15:22] <Jymmm> JT-Shop: Sure, but this wouldn't be for a 72hr outage, this would be for a longer one
[10:15:46] <JT-Shop> do you have enough gas for a longer one?
[10:15:55] <Jymmm> Yes
[10:16:20] <JT-Shop> are you positive your main breaker disconnects you from the grid?
[10:16:46] <Jymmm> JT-Shop: I haven;t opened the panel and inspected it, no.
[10:16:57] <Jymmm> (yet)
[10:17:18] <JT-Shop> you must be positive that the main breaker will disconnect you from the grid
[10:18:08] <Jymmm> JT-Shop: Sure, I completely understand that. As well as I would be feeding the grid otherwise.
[10:18:18] <JT-Shop> then cut the female end off of a cord and put a male on it and your good to go... could be shocking if you don't plug it in before running the generator
[10:18:23] <Jymmm> (in a limited fashion =)
[10:18:35] <JT-Shop> for a moment anyway
[10:19:01] <JT-Shop> does your generator use a twist lock plug?
[10:19:05] <Jymmm> JT-Shop: I could add some neon bulbs
[10:19:23] <JT-Shop> to?
[10:20:08] <Jymmm> JT-Shop: This gen, no (I wish it did), but I want to get a larger one that does.
[10:20:16] <JT-Shop> also know that only 1/2 of your panel can be powered with 120v
[10:20:24] <Jymmm> JT-Shop: like this but inline of the male/male adapter
http://topicstock.pantip.com/home/topicstock/2011/07/R10826123/R10826123-2.jpg
[10:20:42] <Jymmm> JT-Shop: Then I could see if anything was "live"
[10:20:50] <JT-Shop> ?
[10:21:25] <JT-Shop> that does tell you if your outlets are wired correctly
[10:21:55] <Jymmm> JT-Shop: Also, if anything is "live" (grid), before plugging in the gen.
[10:22:09] <jdh> you have a Gen. that only does 120?
[10:22:09] <JT-Shop> ??
[10:22:24] <JT-Shop> if anything is live you lights will be on
[10:22:25] <Jymmm> JT-Shop: What don't you understand?
[10:22:55] <Jymmm> JT-Shop: It's a safety precaution.
[10:22:57] <JT-Shop> what your trying to do with the tester or the neon bulbs
[10:23:26] <Jymmm> jdh: Small gen is a Honda EU2000i
[10:23:55] <Jymmm> JT-Shop: tester == anti-stupid
[10:24:00] <JT-Shop> might not run your freezer if too small
[10:24:08] <JT-Shop> what are you testing?
[10:24:18] <Jymmm> JT-Shop: Heh, it runs the 18K BTU AC =)
[10:25:06] <JT-Shop> what are you testing?
[10:26:15] <Jymmm> JT-Shop: Ok, what I'm doing is illegal for a reason. But if I do it anyway, I' trying to make it as safe as potentially possible. Having tester lights on the adapter saying "Hey, you have power stupid, why are you thinking of using me?" I think is A Good Thing (tm)
[10:26:41] <JT-Shop> won't the lights being on be a clue
[10:27:05] <Jymmm> JT-Shop: Maybe not, maybe a defective circuit breaker just after a power outage.
[10:27:27] <DaViruz> he means to have indicator lights in both ends of the male-male cable, so it will show on the other end if one end is plugged in to a power source
[10:28:07] * JT-Shop wonders what happens when you energize a generator with line power
[10:28:09] <DaViruz> (i believe)
[10:28:30] <jdh> My male-male cable goes from the Gen. to a disconnect. Disconnect goes to subpanel breaker.
[10:28:41] <DaViruz> best case with a three phase it will be forced in sync with the grid
[10:28:53] <DaViruz> if the phase sequence is correct
[10:28:59] <JT-Shop> Jymmm, you check the breakers, check the meter to see if it is on, turn off the main...
[10:29:24] <JT-Shop> if it is not running?
[10:29:59] <jdh> I disconnect my subpanel from the breaker at the main panel. Turn off all the breakers in the subpanel, fire up the Gen, engage the disconnect. Turn the Gen. breaker on. Turn on the few breakers I want to power.
[10:30:12] <JT-Shop> yep
[10:31:04] <JT-Shop> mine is hard wired into my panel to a 60amp breaker, I pull the meter out of the bottom lugs, fire up the gen, flip the breaker on
[10:31:18] <JT-Shop> into a panel, I have 3
[10:31:57] <Jymmm> JT-Shop: you can pull the meter on your panel?
[10:32:01] <JT-Shop> every now and then I'll walk by the meter to see if it back alive
[10:32:22] <JT-Shop> sure
[10:32:34] <Jymmm> ours have a seal on them
[10:32:36] <JT-Shop> it's the only way to disconnect from the grid
[10:33:00] <JT-Shop> cut the seal and toss in the trash... but you can't do that over there
[10:33:14] <Jymmm> =)
[10:33:58] <JT-Shop> I didn't plan on having 2000 sq ft garage/shop with 200amp service when I built the house is the reason I have to pull the meter
[10:34:30] <Jymmm> JT-Shop: when the meter-reader comes around, they dont put the seal back on?
[10:34:43] <JT-Shop> what's a meter-reader?
[10:35:16] <JT-Shop> is that like a milk-man?
[10:35:21] <Jymmm> hu-mon with a clipboard?
[10:35:36] <JT-Shop> I remember that from my childhood I think
[10:35:52] <Jymmm> JT-Shop: you have smart meter now?
[10:35:57] <JT-Shop> we are high tech and the meters are polled from the coop
[10:36:02] <JT-Shop> for years
[10:36:13] <JT-Shop> before that we had to read our own meters
[10:36:20] <Jymmm> ah
[10:36:34] <L84Supper> just wait until the Chinese start selling electricity
[10:36:38] <JT-Shop> which is great cause when it comes alive I know power is restored
[10:36:40] <Jymmm> and call it in?
[10:37:00] <JT-Shop> no you put the reading on the bill and next month you pay for it
[10:37:08] <Jymmm> ah
[10:37:24] <L84Supper> the honor system must be working well enough
[10:37:55] <JT-Shop> there all self reporting for years around here
[10:38:14] <JT-Shop> they know in a heartbeat if you have lost power
[10:38:33] <Jymmm> and if you lie and screw up, plug the mete in backwards =)
[10:39:05] * JT-Shop really should make a part or three now
[10:43:39] <jdh> make me a part.
[10:45:03] <Jymmm> jdh is now a part of the transgender theatrical presentation of Anne!
[10:45:06] <L84Supper> Jymmm: whenever we would temp in a generator we would just be sure to keep the main breaker off or pull the meter
[10:46:21] <L84Supper> for commercial where the meter is not in series with the power mains (but tied in with transformers) we would just be sure to lock the main disconnect off
[10:46:30] <Jymmm> L84Supper: Yeah, breakign the seal and pulling the meter might just be the safest way to go about it.
[10:47:43] <jdh> I'd rather my wife just flipped the breakers as written rather than try to pull a meter.
[10:48:28] <TekniQue> 15:27:42 < L84Supper> the honor system must be working well enough
[10:48:34] <TekniQue> it can't not work
[10:48:54] <Jymmm> jdh: My gen is portable, so it could be used anywhere and on unknown panels.
[10:49:00] <TekniQue> they'll send a guy randomly to do a reading for verification
[10:49:04] <L84Supper> sure, a transfer switch is the way to go ,but we are just discussing what to do temporarily in case of an emergency
[10:49:32] <TekniQue> and well, telling them wrong numbers is only borrowing the money from the power company at no interest
[10:49:55] <TekniQue> at the risk of paying a higher rate for it later
[10:50:08] <TekniQue> so it's not a very smart thing to do
[11:02:35] <JT-Shop> a neighbor in MS shot his meter with a BB gun and would put a pine needle in to hold up the disk from turning
[11:02:45] <JT-Shop> got away with it for a while...
[11:04:18] <Jymmm> lol
[11:05:32] <Jymmm> I JUST found out yesterday that pellet guns in the county are ILLEGAL due to the noise they create. If it has a suppressor on it, then that's ok.
[11:11:31] <JT-Shop> if you shoot the pointy pellets they break the sound barrier so even the whisper like I have sounds like a .22 the flat ones are quiet...
[11:15:03] <JT-Shop> yuck! one of my tool holders is for a 10m turret not a 1/2" turret top
[11:23:56] <Jymmm> JT-Shop: "Whisper" being the model name?
[11:34:08] <JT-Shop> yea IIRC
[11:34:41] <JT-Shop> gamo whisper
[11:37:15] * JT-Shop notes that turning the back side with a boring bar in interesting
[12:10:18] <IchGuckLive> hi all B)
[12:18:32] <JT-Shop> hi
[12:18:54] <IchGuckLive> nasa rover unfold complete
[12:32:21] * JT-Shop starts the docking maneuver for a nap
[12:37:34] <Jymmm> You have to "PREPARE" for a nap?! Unless you might fall off a cliff or something, you just close your eyes.
[12:38:12] <JT-Shop> well you have to get into napping position first then close your eyes
[12:38:35] <IchGuckLive> http://www.ustream.tv/channel-popup/nasa-hd-tv
[12:38:42] <JT-Shop> although I can nap anywhere some places are more comfortable than others
[12:38:43] <Jymmm> Not really, I can sleep anywhere, anyhow
[12:39:41] <JT-Shop> I thought you couldn't sleep at night
[12:40:17] <Jymmm> Well, used to be able to sleep anywhere/anyhow that is ;)
[12:40:36] <Jymmm> pre-insomnia that is
[12:41:22] <JT-Shop> I used to nap laying on grating between two 16 cylinder 10,320 cu inch engines while they ran
[12:41:44] <Jymmm> see, there ya go... no prep, just nap
[13:11:32] <IchGuckLive> heavy posting !!
[13:11:42] <IchGuckLive> Holiday leek
[13:12:03] <IchGuckLive> wether is fine in the World beside Manila
[13:12:30] <IchGuckLive> Mexiko expecd a Strorm comming up
[13:14:25] <IchGuckLive> also tornadowatch in place at Witchita , est to lincoln
[13:15:57] <IchGuckLive> according to ->
http://www.nrlmry.navy.mil/TC.html §Storms in the atlantic 2 est pacific and 3 west pacific 13 TC in the seeseon
[13:16:09] <Tom_itx> IchGuckLive where?
[13:17:14] <IchGuckLive> What
[13:17:24] <Tom_itx> tornadowatch in place at Witchita , est to lincoln
[13:17:45] <IchGuckLive> http://www.spc.noaa.gov/products/watch/ww0165.html
[13:17:51] <jdh> all the atlantic storms are pretty lame.
[13:18:12] <Tom_itx> IchGuckLive i haven't heard about that
[13:20:43] <IchGuckLive> 1 fire outloock
http://www.spc.noaa.gov/products/fire_wx/fwdy1.html
[13:20:58] <Tom_itx> the sky is clear here
[13:21:45] <IchGuckLive> as you say
[13:23:30] <IchGuckLive> have a nice day where ever you are on the planet im off BY
[13:31:33] <joe9> need some advice, please? I have a Z (tool length probe switch). I have the X and Y position where the probe switch is at. The probing is working fine. I am trying to get the X and Y to what it was before the "probing" subroutine is called.
[13:31:54] <joe9> i see G30 and G30.1, but, that is for probing.
[13:32:22] <joe9> I need something to store the X and Y before doing the probing subroutine and after the probing, get back to that X and Y.
[13:32:25] <jdh> save the x/y before you probe
[13:32:36] <joe9> I can store the values in #5061
[13:32:40] <joe9> and #5062
[13:32:43] <joe9> as X and Y
[13:32:53] <joe9> but, not sure if there is smarter way to go about it.
[13:33:09] <joe9> jdh, X = #5061 and Y = #5062, correct?
[13:33:32] <jdh> you could save x&y as coord. offsets, but I don't think that would buy you anything.
[13:34:17] <jdh> isn't that where the probed values are stored?
[13:34:22] <joe9> yes.
[13:34:31] <joe9> how can I read X and Y values?
[13:34:34] <jdh> then it woudln't be a good place to save x&y
[13:34:46] <joe9> no, I save them in my variables
[13:34:55] <joe9> i am trying to figure out where to read them from.
[13:35:47] <jdh> you've lost me.
[13:36:16] <joe9> where are the current X and Y values stored in?
[13:36:31] <jdh> lemme look.
[13:36:51] <jdh> 5420,5421
[13:36:57] <joe9> ok, thanks.
[13:37:08] <joe9> sorry for the bother, jdh. where did you look, btw?
[13:37:45] <jdh> you could probably G92 also (and then subtract) but G92 confuses me
[13:38:32] <jdh> http://linuxcnc.org/docs/2.5/html/gcode/overview.html#sub:numbered-parameters
[13:39:52] <Connor> Blue to purple chips with Carbide turning tool is correct turning speed ? (Lathe)
[13:40:13] <joe9> jdh, thanks. that is exactly what I needed.
[13:52:08] <Loetmichel> re @ home
[13:55:45] <skunkworks> joe9, I don't understand - doesn't g30 just work for you (if you define g30 as the probe locatioin) it doesn't affect your current coordinat system...
[13:57:11] <Loetmichel> *hrmpf*... i think i get old. just 12 hrs @ work and already back pain... (muscles prostesting the lifting/standing up) :-(
[14:09:05] <mcenter__> Connor, Blue to purple chips with carbide generally optimal. But, not a requirement
[14:10:03] <mcenter__> As long as you are making well-formed chips and nothing sounds or feels amiss.
[14:15:04] <joe9> skunkworks: i did not figure out how G30.1 works. so, was looking for something easier.
[14:15:13] <joe9> skunkworks: let me check up on G30.1 again.
[14:15:43] <skunkworks> joe9, do you have home switches? (is your machine homed to a know position every time you use it?)
[14:15:48] <Connor> mcenter__: That's what I thought. It looked like it was cutting good at the speed.
[14:15:54] <joe9> skunkworks: yes, I have home switches.
[14:16:02] <joe9> yes, it is always the same position.
[14:16:10] <Connor> First time I used carbide inserts.
[14:16:17] <Connor> Normally use HSS cutters.
[14:16:35] <skunkworks> then you can go to your tool lenght swith and do a g30.1 and then from that point on - G30 will go to your switch.
[14:16:56] <joe9> with gcode, it is annoying that you get the message about the outermost subroutine, but, not the exact line in the inner most subroutine that has the error.
[14:20:12] <joe9> Is there some setting for the error code to drill into the inner subroutine with the error.
[14:20:12] <joe9> skunkworks: ok, thanks. will check it out.
[14:22:58] <joe9> http://codepad.org/nzjNxTCu is my gcode with a tool probe switch, it also sets the G55 touchoff
[14:23:07] <joe9> any kind comments to make it better, please?
[14:27:53] <jdh> have you tried probing the PCB?
[14:35:20] <jdh> #<_x> - Return absolute machine X coordinate. Same as #5420.
[14:38:37] <joe9> jdh, not sure what you mean. will get into that in a minute.
[14:39:03] <joe9> What would the touchoff value: at -5.44, I can make a small scratch on the dowel or the touchoff piece,
[14:39:24] <joe9> and at -5.439, it passes without the scratch.
[14:39:43] <joe9> should my touchoff be at -5.439 or -5.44?
[14:39:59] <joe9> any thoughts, please? How do you normally set it?
[14:40:53] <jdh> that would be entirely up to you.
[14:41:38] <jdh> but, I would make zero not touching and -0.00000001 touching
[14:42:02] <joe9> jdh: wow, that is a very high precision.
[14:42:29] <joe9> I think my machine is precise upto only 0.0003 or something like that. it is a taig mill.
[14:42:58] <joe9> so, I think I should stick with -5.439.
[14:44:22] <jdh> it was an arbitrary point. zero should not be touching, anything less than zero should be.
[14:45:18] <joe9> jdh, ok, thanks.
[14:48:35] <jdh> http://www.cnczone.com/forums/pcb_milling/82628-cheap_simple_height-probing-9.html#post811490
[14:52:24] <joe9> jdh, thanks.
[15:25:28] <joe9> is this a correct way of setting default values to a subroutine?
http://codepad.org/MQU6v7M9
[15:25:31] <joe9> in gcode
[15:28:04] <joe9> this is with axis gui
[15:30:10] <jdh> I would think you would need an IF block for each one to determine if you needed to use the default.
[15:30:42] <jdh> but, I wouldn't allow defaults.
[15:35:16] <joe9> jdh: i was thinking of an if statement, but, was not sure how to check for an "undefined" value.
[15:35:37] <joe9> i am not sure if undefined values are 0?
[15:35:39] <jdh> check for 0 maybe?
[15:35:48] <jdh> but, I wouldn't allow defaults.
[15:37:54] <joe9> if 0, then error -- ok, good idea.
[15:45:43] <JT-Shop> anyone know how to make a model rocket igniter
[15:45:59] <JT-Shop> that I might use to touch off my cannon...
[15:46:12] <jdh> nichrome wire and a little powder?
[15:46:46] <Jymmm> JT-Shop: Yws, but it's disposable
[15:46:48] <Jymmm> yes
[15:46:59] <JT-Shop> it takes kinda high current for nichrome
[15:47:05] <Jymmm> JT-Shop: nah
[15:47:27] <Jymmm> JT-Shop: Recall that I have 100K feet in various gauges =)
[15:48:15] <JT-Shop> I guess if you had some small enough, all I have is foam cutting wire I think I still have it
[15:49:02] <jdh> http://makeprojects.com/Project/Model-Rocket-Igniters/386/1#.UCLN06AWo0E
[15:49:53] <jdh> geez... I haven't seen one of those in 30+ years. Still the same though.
[15:51:03] <JT-Shop> one of the first ones that popped up with a google search for me :)
[15:51:07] <Jymmm> JT-Shop: Heh, that Make project is wussy igniters =)
[15:52:05] <DJ9DJ> gn8
[15:56:49] <JT-Shop> hmm, I have some 0.010" copper wire
[15:58:56] <Jymmm> JT-Shop: If you have 30ga SS wire, that could work
[15:59:17] <Jymmm> JT-Shop: I have Nichrome from 18 to 40ga =)
[16:01:00] <Jymmm> JT-Shop: Also...
http://www.pyrouniverse.com/fusemaking/igniters.htm
[16:01:18] <Jymmm> JT-Shop: I have "other" pyro resources too
[16:01:39] <JT-Shop> 0.010" is 30 gauge so it should work too
[16:02:34] <Jymmm> is ss or nichrome?
[16:02:36] <Jymmm> in
[16:02:41] <JT-Shop> copper
[16:02:49] <Jymmm> cnt use copper
[16:02:53] <Jymmm> SS or NiChrome
[16:02:54] <JT-Shop> why
[16:03:05] <Jymmm> resistance
[16:03:17] <JT-Shop> I just watched a video of a kid doing it with copper wire
[16:03:30] <JT-Shop> and 4.5v worth of a cells
[16:03:35] <Jymmm> ok, fine, you could use steel wool too
[16:04:10] <Jymmm> but copper cant handle 2200F
[16:05:07] <Jymmm> you want a fuse or a RELIABLE igniter is my point.
[16:05:40] <JT-Shop> I assume it will get blown to hell and back when the cannon goes off
[16:05:53] <Jymmm> and I have a way to make them without having to was visco ether
[16:05:58] <Jymmm> waste
[16:07:24] <Jymmm> JT-Shop: a little better
http://www.pyrouniverse.com/show/fusing/joeematch.htm
[16:08:28] <Jymmm> JT-Shop: Kayton tape is heat resistant fwiw
[16:08:48] <Jymmm> JT-Shop: Never try to solder nichrome, crimp only
[16:10:19] <Loetmichel> Jymmm: it is, but only up to ~250°c
[16:10:48] <Jymmm> Loetmichel: lol
[16:11:40] <Loetmichel> ?
[16:12:10] <Jymmm> 250C != 1200C
[16:12:15] <Jymmm> not even close =)
[16:14:26] <Loetmichel> kayton
[16:14:35] <Loetmichel> sorry i had read kapton
[16:15:08] <Jymmm> I said Kapton...
http://en.wikipedia.org/wiki/Kapton
[16:15:25] <Jymmm> but I was tlaking about 1200C for NiChrome
[16:15:39] <Jymmm> (max working temp)
[16:16:05] <Loetmichel> Jymmm: kapton TAPE should not be used above 250-300°C
[16:16:19] <Jymmm> it says 400C
[16:16:22] <Loetmichel> because it will harden/decomposite
[16:16:39] <Jymmm> and for what jt's doing, it's fine, just adding some water proofing
[16:16:53] <Loetmichel> in long term
[16:17:14] <Jymmm> he's going to blow the shit up (literally), it's perfectly fine.
[16:18:06] <Loetmichel> ok, if you are talking "short term" then you are right.
[16:19:09] <Thetawaves> thanks for the info Loetmichel
[16:19:20] <Thetawaves> but hopefully my mosfets aren't getting up to 250C
[16:19:26] <Loetmichel> hrhr
[16:20:12] <Loetmichel> i cant tell for mosfets, but i had 2n3055 desoldering themsef more than once
[16:20:28] <Loetmichel> and working perfectly after resoldering ;-)
[16:20:34] <Thetawaves> haha
[16:21:31] <Loetmichel> ... maybe i made the heatinks a TAD to small ;-)
[16:21:35] <Loetmichel> heatsinks
[16:46:04] <Tom_itx> JT-Shop go to the hobby store and get some model rocket igniters
[16:46:21] <JT-Shop> we don't have a hobby store
[16:46:34] <Tom_itx> mmm
[16:48:38] <Tom_itx> http://www.amazon.com/Estes-2301-Rocket-Igniters/dp/B000TF4DUO/ref=sr_1_1?ie=UTF8&qid=1344461752&sr=8-1&keywords=estes+rocket+igniters
[16:48:46] <Tom_itx> amazon sells everything
[16:49:26] <JT-Shop> I keep forgetting to look at amazon
[16:49:31] <Jymmm> JT-Shop: u r a pita
[16:49:47] <JT-Shop> whats your point?
[16:50:09] <Jymmm> JT-Shop: go get one of those $4 soldering pencils. they have about 2-5 feet of nichrome wire in them
[16:50:15] <Tom_itx> note that it's listed under "Toys"
[16:51:14] <Jymmm> JT-Shop: without looking it up 30ga nicrhome is around 3.2 ohms per foot
[16:51:39] <Tom_itx> Jymmm i gave you a bunch of numbers on that a while back
[16:51:44] <Jymmm> maybe 0.3 OPF something liek that. just measure it
[16:51:53] <Jymmm> Tom_itx: on what?
[16:51:59] <Tom_itx> nicrome wire
[16:52:05] <Tom_itx> h
[16:52:32] <Jymmm> Tom_itx: I doubt it, I've been using nichrome for years and had a metallurist does soem formulas for me and the foundry.
[16:52:44] <Jymmm> s/and/at/
[16:52:58] <Jymmm> Tom_itx: Oh, you meant he strip. I'm tlaking wire
[16:53:11] <Tom_itx> he has wire as well i believe
[16:53:20] <Jymmm> yeah, copper.
[16:53:26] <Tom_itx> no nichrome
[16:53:31] <Jymmm> no, JT-Shop
[16:53:47] <Jymmm> Tom_itx: JT-Shop wants to make electric matches
[16:53:57] <Tom_itx> i know
[16:54:24] <Jymmm> Tom_itx: so what does me wanting strip for heating have to do with JT-Shop wanting wire for matches?
[16:54:28] <Tom_itx> you need a batch of igniter to dip it in don't you?
[16:54:50] <Jymmm> yo make it eextra special yes. but not required
[16:55:06] <Jymmm> JT-Shop: can use fuse
[16:55:51] <Jymmm> I do have a better way of making them, but JT-Shop dont wanna hear it (or at least nto from me =)
[17:00:07] <Jymmm> good use for CAT3 if you have some =)
[17:16:25] <Tom_itx> http://makeprojects.com/Project/Make-your-own-model-rocket-igniters/386/1#.UCLibqAcaBM
[18:40:29] <jthornton> I think it is easier to just buy some estes rocket igniters
[18:40:40] <jdh> most likely
[18:41:19] <jthornton> as I don't have any small gauge nichrome wire only big stuff for foam cutting
[18:41:47] <jthornton> and Jymmm won't send me any 30ga nichrome to play with
[18:41:56] <jdh> what an ass.
[18:42:14] <jdh> surely they have hobby stores in .mo.us or wtf.us
[18:43:04] <jthornton> they might have a hobby store in Cape which is a 75 minute drive... one way
[18:43:29] <jdh> geez
[18:43:46] <jthornton> well you can't have everything
[18:44:27] <jthornton> I don't know what to tell this guy...
http://linuxcnc.org/index.php/english/component/kunena/?func=view&catid=38&id=22980#22982
[18:46:11] <jdh> I haven't tried 2.5.1. Is there anything intersting?
[18:46:19] <jthornton> how do you revert back to 2.5.0?
[18:46:53] <jthornton> just
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Released_2.5.X
[18:47:05] <r00t4rd3d> invert?
[18:47:52] <r00t4rd3d> you remove 251 and reinstall 250
[18:47:55] <skunkworks__> odd.
[18:48:03] <jthornton> yes odd
[18:48:11] <r00t4rd3d> could he not just invert the axis thats backwards?
[18:48:38] <jthornton> he did that now his limits are backwards
[18:48:38] <r00t4rd3d> if i was him i would create a new ini with 251
[18:48:54] <r00t4rd3d> you can invert the limits too cant you?>
[18:49:06] <jthornton> sure
[18:49:06] <r00t4rd3d> everything has a invert check box i think
[18:49:27] <jthornton> that would just invert the limit switch itself
[18:49:48] <jthornton> I think he is saying that his table limits are backwards now
[18:50:04] <jdh> non shared limits?
[18:50:39] <jthornton> no, his + and - distance for limits
[18:51:33] <jdh> oh. and his motors were backwards?
[18:52:01] <jthornton> he didn't mention anything about motors
[18:52:32] <jdh> the x and y axis changed the direction
[18:52:45] <jdh> guess I really have no idea what he meant by that.
[18:53:10] <jthornton> me neither
[18:53:16] <skunkworks__> he maybe should have inverted the direction pin instead of the scale....
[18:53:34] <jdh> whit the stepconf wizard I changed the sign of the x and y axis direction.
[18:53:49] <r00t4rd3d> i hope you did that by mistake
[18:56:10] <r00t4rd3d> i would tell him to back up his old ini and generate a new one with 251
[18:56:17] <r00t4rd3d> see what that does
[18:56:27] <jdh> mine wasn't very generatable
[18:59:56] <jthornton> I see help has arrived :)
[19:04:23] <r00t4rd3d> it has to be in his ini file
[19:05:06] <r00t4rd3d> A new post has been made to a topic to which you have subscribed on the LinuxCNC Support Forum Forum
[19:05:14] <r00t4rd3d> i could kill a bitch
[19:05:54] <r00t4rd3d> automatic subscribed with email alerts?
[19:06:03] <jdh> change your settings
[19:06:27] <r00t4rd3d> that is a setting that should not be default was my point
[19:08:10] <r00t4rd3d> where the hell is that setting, not in my profile
[19:08:22] <jdh> heh
[19:08:55] <r00t4rd3d> ffs
[19:09:23] <r00t4rd3d> http://linuxcnc.org/index.php/english/my-profile-usermenu-17/userprofile/r00t4rd3d
[19:09:41] <r00t4rd3d> jthornton, ^^ can u delete that please.
[19:13:39] <r00t4rd3d> Where is the subscription shit? Why is it not in my profile?
[19:13:45] <r00t4rd3d> wtf
[19:14:27] <r00t4rd3d> that is a bullshit thing to do to people
[19:20:21] <jdh> relax
[19:21:57] <r00t4rd3d> ill relax when the auto sub and email is off my shit
[19:22:58] <jdh> Post-subscription checked by default? Initial/default value: Yes
[19:23:47] <r00t4rd3d> atleast let the user change this
[19:24:06] <r00t4rd3d> person pet peeve
[19:25:26] <r00t4rd3d> i changed my email to emc-board@lists.sourceforge.net
[19:26:10] <r00t4rd3d> now I am going to reply to every post on the forum
[19:26:16] <r00t4rd3d> :)
[19:26:34] <jdh> hey, you should just not pay them until they change all teh defaults to your liking.
[19:27:26] <r00t4rd3d> that is just a forum setting you let people choose
[19:34:11] <r00t4rd3d> i find it od that im the first person to complain about this?
[19:34:28] <r00t4rd3d> no other notes in Using this Forum sub about it :/
[19:37:28] <r00t4rd3d> took me 2 months to finally get an account registered and 1 post to make me regret the effort.
[20:21:28] <jdh> The slitting saw cut quickly with fluent swarf without burr, is easy to operate.
[20:23:47] <Tom_itx> got a pic of your saw setup?
[20:24:03] <Tom_itx> i have an arbor for some on my sherline but i haven't used them yet
[20:24:23] <jdh> don't have one. Was looking... ran across that description
[20:33:46] <jp_> any of you guys think an arduino would serv as a good microstepping controller?
[20:42:00] <jdh> sounds good to me.
[20:42:08] <Tom_itx> logger[mah]
[20:42:09] <logger[mah]> Tom_itx: Log stored at
http://linuxcnc.mah.priv.at/irc/%23linuxcnc/2012-08-09.html
[20:43:20] <Tom_itx> jp_ what's this going on?
[20:44:30] <jp_> nothing as of right now just an idea
[20:44:55] <jp_> just want a drive thats capable of 10A or so
[20:45:06] <Tom_itx> why so much?
[20:45:25] <Tom_itx> the gecko 203v goes to 7A
[20:47:19] <jp_> i know i dont want a gecko
[20:47:45] <jp_> if i just went out and bought one what would be the fun in that
[20:48:03] <jdh> yep.
[20:48:31] <jp_> this way ther will most likely be some smoke and fireworks
[20:49:09] <Tom_itx> i had fun making the supply and control box for one
[20:49:29] <Tom_itx> http://tom-itx.dyndns.org:81/~webpage/cnc/psu/psu_index.php
[20:50:00] <Tom_itx> i should get about 18A from that supply
[20:53:07] <jp_> it would be nice to come up with a one size fits all microstepping drive
[20:53:49] <jp_> theres some nice h-bridges out ther now that can help make that happen
[20:54:21] <Tom_itx> allegro makes some
[21:00:31] <jp_> i have some samples on the way SMT though
[21:01:07] <jp_> Thank god the heat sink pad is on the top of the chip
[21:01:09] <Tom_itx> make sure you get a good thermal contact on the center pad
[21:01:20] <Tom_itx> it's not on the bottom?
[21:01:30] <Tom_itx> it must be tqfp or such then
[21:01:35] <jp_> 12A RMS 24 A Peak
[21:01:46] <Tom_itx> qfm etc all have bottom center pads
[21:02:07] <jp_> it's a weird one BSSOP
[21:02:23] <Tom_itx> you realize you gotta get the heat away from it
[21:02:35] <Tom_itx> or it won't perform like that
[21:02:40] <jp_> yes
[21:02:57] <Tom_itx> the leads probably won't handle that current
[21:03:37] <jp_> im sure it will its rated for it
[21:03:57] <Tom_itx> there are to220 mosfets rated for 50A too
[21:04:02] <jp_> why make something rated for it if it will just burn and die
[21:04:08] <Tom_itx> no way the leads will take that
[21:04:34] <jp_> 50A RMS?
[21:05:24] <jp_> or 50A peak
[21:05:57] <Tom_itx> http://www.digikey.com/product-detail/en/AUIRF1405/AUIRF1405-ND/3455111
[21:06:00] <Tom_itx> 75A
[21:06:05] <jp_> I put 2000 amps thru 10Ga every day but not Continously
[21:06:05] <Tom_itx> 220 package
[21:08:46] <jp_> @ max allowable junction temp so just keep it cool
[21:10:37] <jp_> LN2 cooled!!! LOL
[21:15:00] <jp_> so do you think the arduino is up to acting as a L297?
[21:15:14] <jdh> sure, but so is an l297
[21:16:12] <jp_> true but i was think of playing with high micro-stepping
[21:28:10] <jp_> anyone here using linuxcnc to drive your 3d printer?
[21:29:02] <Tom_itx> i don't think many use it for that
[21:29:58] <jp_> I thought it would be a natural fit for long time users
[21:45:02] <uw> nope
[21:59:12] <skunkworks__> there are a few using linuxcnc on their 3d printers
[22:06:14] <uw> for whatever reason
[22:08:05] <skunkworks__> ?
[22:08:54] <jp_> working on building a 3d printer right now
[22:09:29] <jp_> I plan to use linuxCNC
[22:10:14] <uw> anybody with a laser cutter?
[22:10:31] <jp_> theres been a few
[22:10:42] <uw> looking to get a case cut
[22:11:14] <jp_> no job shops around your area
[22:12:58] <jp_> i have a waterjet job shop around the corner from me 30$ to cut a strip off of a 1" granite counter top
[22:13:02] <uw> i dont think any that have a laser cutter.
http://www.thingiverse.com/thing:25100
[22:13:44] <jdh> I'd like one of those cases.
[22:14:06] <jp_> cool!!
[22:14:09] <uw> yea the guy wont make it with out the stupid logo on the bottom
[22:14:25] <skunkworks__> http://www.youtube.com/watch?v=EKjKfyxD79E
[22:14:30] <jdh> wonder if I could just cut something similar on my router.
[22:15:17] <uw> i was thinking of puting one on my mill. but id have to redo it to offset for the bit. then the light tubes need to be deltwith and all
[22:16:16] <uw> would be terrible, but it would surely be easier for someone with a laser machine
[22:17:28] <jdh> there's a dxf on the page. I'll try cutting one out of .25" hdpe this weekend if teh weather sucks.
[22:18:26] <skunkworks__> http://www.youtube.com/watch?v=433l5AjHtVc
[22:18:28] <uw> nice if it works out let me know
[22:19:28] <skunkworks__> http://www.youtube.com/watch?v=F6WnkmzP1ZY
[22:19:48] <jdh> I think it might rely on the 90degree cuts to stay together
[22:20:39] <jp_> skunkworks: Ive seen those just wondering if anyone here had one
[22:21:09] <uw> yea because of the interior fillets that would be created, you might have to do some afterward touchups with a file or something
[22:21:25] <jdh> the dxf is all splines
[22:22:00] <skunkworks__> awallin started one.
[22:22:56] <jp_> i should hopfully have the mechanics done this weekend
[22:23:17] <jp_> just working on the extruder right now
[22:24:31] <uw> oh stupid pycam
[22:25:17] <skunkworks__> awallins -
http://youtu.be/pqOsQmvupdM
[22:25:57] <skunkworks__> I think he didn't do much with it. too busy
[22:27:40] <jp_> http://www.youtube.com/watch?v=OiN8wNyLdTI&feature=related
