#emc | Logs for 2010-01-06

[00:03:52] <jt-plasma> yep
[00:04:06] <jt-plasma> it is an empty cabinet LOL
[00:05:15] <jt-plasma> 24" wide 14" deep, and 5' tall and had one circuit board, one relay, and one 24v power supply in it
[00:10:43] <lilalinux> lilalinux is now known as lilalinux_away
[00:14:49] <danimal_garage> haha wow
[00:14:57] <danimal_garage> i wish i had that much room
[00:15:12] <danimal_garage> mine's full of crap
[00:17:45] <jt-plasma> the other one is pretty full of drives and transformers and ssr's
[00:18:11] <jt-plasma> I have not heard from robh yet on the ladder
[00:18:28] <danimal_garage> i just finished welding a new bottom on a hoffman enclosure i got from the surplus yard
[00:18:37] <danimal_garage> for my servo amps
[00:18:54] <danimal_garage> no biggie, i'm not ready for it yet anyways
[00:19:22] <danimal_garage> there were a ton of holes in the enclosure, but not anymore :)
[00:19:42] <danimal_garage> once it's painted, noone will ever know :)
[00:23:02] <jt-plasma> cool
[00:23:03] <tom3p> does stepgen run faster than base-thread?
[00:23:03] <tom3p> i put a 'soft limit switch' on to an axis in velocity mode (connected to stepgen.N.enable)
[00:23:03] <tom3p> while testing, i got overruns of several counts crashing into the limit.
[00:23:03] <tom3p> i'd think i could get 1 count but not more.
[00:23:03] <tom3p> trying to do everything on fast thread, but maybe i got some float stuff in there.
[00:23:15] <jt-plasma> did you get the resolver fingered out?
[00:25:59] <jt-plasma> tom3p: I think it it runs as fast as the thread stepgen.make-pulses is in...
[00:26:34] <jt-plasma> but I might be full of it too and don't know it :)
[00:26:47] <SWPadnos> make-pulses generally runs in the base thread, but the limit switch checking is in the servo thread
[00:27:26] <tom3p> no put limit swx in base-thread but i think some prev condition is float, thus the delat
[00:27:59] <danimal_garage> jt-plasma: i got them hooked up to the pico boards
[00:28:02] <tom3p> limit swx is a and gate to the stepgen enable, but the signals fed into the nand might be float-poluted
[00:28:29] <SWPadnos> the nand does nothing with floats
[00:29:08] <SWPadnos> the stepgen should be able to output at most one extra step, depending on the thread execution order (if make-pulses is before the nand)
[00:29:18] <SWPadnos> is there a debounce on the limit switch?
[00:29:25] <tom3p> it uses bits that are decisions based on numbers, if i used s32 then ok its fast if i used float then slow
[00:29:49] <SWPadnos> no, the calculations are still done very rapidly
[00:30:11] <SWPadnos> I think it takes 3 cycles to do a floating point addition these days
[00:30:12] <tom3p> float calcs?
[00:30:18] <SWPadnos> yes
[00:30:22] <tom3p> cant be done is base thread
[00:30:27] <tom3p> i think
[00:30:47] <tom3p> is/in
[00:30:57] <SWPadnos> you may have to slow things down a little, since the context switch takes a little longer
[00:31:27] <tom3p> i'll check to see if i have any float components in the limit switch stream
[00:31:35] <tom3p> thx
[00:33:01] <jt-plasma> say goodnight Gracie
[00:33:24] <jt-plasma> * jt-plasma wanders in to get the pizza stone hot...
[00:46:46] <Jymmm> jt-plasma: you've never moved anything bulky with a crow bar?!
[00:48:28] <danimal_garage> i usually use my hands
[00:48:39] <danimal_garage> and a can of spinach
[00:53:18] <jthornton> I moved a 5,000 pound lathe with a 2x4 :)
[00:53:50] <Jymmm> jthornton: Exactly, ya goober!
[00:53:57] <jthornton> LOL
[00:54:00] <Jymmm> 2x4, pry bar, etc
[00:54:31] <danimal_garage> well you cant use a 2x4 like a prybar on a 5000lb machine, that'll split it lol
[00:54:42] <jthornton> I did LOL
[00:54:50] <danimal_garage> unless you're pushing across an ice scating rink
[00:54:59] <jthornton> oh, it was on rollers LOL
[00:55:00] <Jymmm> danimal_garage: you can, but only once =)
[00:55:04] <danimal_garage> haha
[00:55:14] <jthornton> ever heard of iron wood
[00:55:22] <Jymmm> and if you use the long edge you can, just not as easy
[00:55:44] <danimal_garage> i epoxied my garage floor so i can push mine around by hand with no rollers
[00:55:58] <jthornton> * jthornton really goes up to the cosina to start the pizza
[00:56:12] <danimal_garage> adios
[00:56:21] <Jymmm> The easiest way is just like we did moving safes... 1/4" steel rods
[00:56:39] <danimal_garage> my mill on the other hand, i had to put steel bars under it and roll it
[00:56:47] <danimal_garage> yea that works
[00:57:21] <danimal_garage> i just got some 1.5" black steel pipe from home depot and cut it in a few pieces
[00:57:36] <Jymmm> too tall
[00:57:44] <Jymmm> imo
[00:58:08] <danimal_garage> perfect for me
[00:58:17] <Jymmm> 10 to 20 1/4" rods can easily be tossed in a bag and stored anywhere
[00:58:29] <danimal_garage> most of my machines are raised in the center by about .5" to 3/4"
[00:58:47] <danimal_garage> they have pads on the corners
[00:59:02] <danimal_garage> raises it too high for small rods
[00:59:21] <Jymmm> danimal_garage: nothing a sawzall can't fix
[00:59:43] <danimal_garage> plus with the pipes, i can stick another bar inside them to rotate them under the machine to change directions
[01:00:55] <danimal_garage> dammit i keep screwing up this anodizing
[01:01:10] <danimal_garage> i think my acid bath tank is too cold
[01:03:40] <danimal_garage> i guess these parts arent shipping today
[01:45:13] <toastydeath> do any of you guys do downhill skiing
[01:54:38] <danimal_garage> not me
[02:13:05] <mozmck> uphill skiing seems like it would be difficult...
[02:17:15] <toastydeath> i assume that's why uphill skiing isn't so widely practiced
[02:17:30] <jackc> were gonna try this weekend :-)
[02:17:36] <jackc> we have to 3-meter power kites for it
[02:17:43] <jackc> not as big as the $real guys, but might work
[02:17:56] <toastydeath> if the wind's good it should
[02:18:05] <jackc> we shall see
[02:18:11] <jackc> where do you live
[02:18:32] <jackc> if its anywhere near MA, come be involved
[02:19:00] <toastydeath> sry =(
[02:19:08] <jackc> damn
[02:19:08] <toastydeath> i would love to powerkite, i've never done it but want to so bad
[02:19:18] <toastydeath> i live in MD right above DC
[02:19:23] <jackc> ah yeah thats a ways
[02:19:29] <jackc> BUT there are lots of people there who kite no?
[02:19:35] <toastydeath> not sure
[02:19:43] <toastydeath> haven't looked, there's certainly not a lot of snow in the area
[02:19:54] <toastydeath> and the ocean is ~4-5 hrs away
[02:19:58] <jackc> well not for skiing, but for surfing
[02:20:02] <jackc> ah ok
[02:20:33] <toastydeath> if the ocean was closer I'd kite, or if we had more open spaces for a kitebuggy or something
[02:20:46] <jackc> word
[02:21:39] <toastydeath> right now my dad and I are planning a ski trip and I'm trying to find someone who knows enough about downhill/race skiing to help me with some dumb questions
[02:21:51] <jackc> haha i raced for a few years
[02:21:55] <jackc> what sort of questions?
[02:22:01] <toastydeath> ski length
[02:22:25] <jackc> well its come down in the recent years due to shaping and such
[02:22:30] <jackc> how well do you ski?
[02:22:31] <toastydeath> last time I went and was doing downhill sorts of stuff I had problems staying stable at the higher speeds, I was wondering if ski length was the primary factor there or if it's just techinque
[02:23:13] <toastydeath> around 40-45 mph
[02:23:22] <jackc> longer skiis! :-p
[02:23:30] <jackc> yeah the longer the more stable generally
[02:23:36] <jackc> i mean i wouldnt go taller than you are
[02:23:57] <toastydeath> the last time I went I'm not sure if they had shaped skis or not, I can't remember
[02:24:02] <toastydeath> but they were exactly my height
[02:24:21] <jackc> hm well if they werent shaped thats about standard, if they were thats generally a bit long
[02:24:45] <toastydeath> I'm willing to put my money down that they were standard
[02:25:11] <toastydeath> okay, so I'll just go back to that if they've got shaped skiis for rent
[02:25:49] <toastydeath> is there anything technique wise to look out for?
[02:26:00] <toastydeath> i'd really like to go faster this time around
[02:27:42] <jackc> haha
[02:27:48] <jackc> the more shape, the easier the turn
[02:28:05] <jackc> if youre skiing in the east, make sure the edges are sharp
[02:30:06] <toastydeath> k
[02:30:46] <danimal_garage> last time i skied was when i lived in CT
[02:31:25] <danimal_garage> i've snowboarded a few times since i've been in CA, but i think i wanna try skiing again
[02:31:58] <danimal_garage> however Ski Sundown was a bit of a bunny slope compared to Big Bear
[02:32:21] <toastydeath> there's not too much around me, it's a bit of a drive
[02:43:28] <danimal_garage> 110 miles for me
[02:43:39] <danimal_garage> to get to big bear
[02:44:03] <danimal_garage> maybe 120
[02:44:18] <Jymmm> Fullerton?
[02:44:32] <toastydeath> wow i think you win
[02:44:35] <danimal_garage> i'm in San Diego
[02:45:06] <danimal_garage> toastydeath: maybe a bit of a drive, but it was over 70 degrees here today :)
[02:45:37] <toastydeath> closer to a beach day than a ski day, eh
[02:45:50] <toastydeath> i hate when my family vacations at the beach
[02:45:59] <danimal_garage> yea, 15 minutes from the beach
[02:46:50] <danimal_garage> yea, i almost never go to the beach at all
[02:47:11] <danimal_garage> i prefer the mountains
[02:47:15] <toastydeath> if i was closer I'd pick up a sport and have a reason to go
[02:47:20] <toastydeath> but they just... sit there?
[02:47:31] <toastydeath> why would you do that, just sit on a beach
[02:47:53] <danimal_garage> yea i dont get that either
[02:47:57] <Jymmm> watch boobs?
[02:48:07] <danimal_garage> i can watch boobs from my front yard
[02:48:13] <danimal_garage> no need to go to the beach
[02:48:24] <toastydeath> I guess, i kind of feel if someone is going out to explicitly look at boobs the chances of talking to the owner of those boobs is low
[02:49:04] <Jymmm> if you're married , you're not suppose to be communicating with the owner, just window shopping
[02:49:10] <danimal_garage> girls around here dont exactly dress conservatively
[02:49:11] <toastydeath> oh, i guess that's true
[02:49:31] <danimal_garage> maybe that's why they're prego by 16
[02:49:54] <Jymmm> 14
[02:50:11] <toastydeath> the apex of excellence in decision making
[02:50:29] <danimal_garage> you mean i already hit the apex?
[02:50:55] <toastydeath> In a sense.
[02:51:02] <Jymmm> danimal_garage: Yep, it's viagra and geritol for you!
[02:51:13] <danimal_garage> ugh, i'm already twice as old as i was when i was 14
[02:51:29] <danimal_garage> which means i've been machining for nearly half my life
[02:52:25] <danimal_garage> jymm, where in CA are you?
[02:52:43] <danimal_garage> bay area or something?
[02:52:48] <Jymmm> yeah
[02:53:13] <danimal_garage> cool
[02:53:23] <danimal_garage> that's where i picked up my mill :)
[02:53:30] <danimal_garage> santa clara
[02:53:40] <Jymmm> when was this?
[02:53:59] <danimal_garage> maybe april or may
[02:54:03] <danimal_garage> 2009
[02:54:05] <Jymmm> ah
[02:54:21] <danimal_garage> my shizuoka
[02:54:41] <danimal_garage> had a drive a bottomed-out 26ft penskee all the way back with that thing in the back
[02:54:51] <danimal_garage> had to drive*
[02:56:14] <danimal_garage> that sucked
[02:57:59] <Jymmm> that bites, but ifyou drove all that way it must have been a good deal
[02:58:03] <SWPadnos> try that with a Bridgeport mill and a Takisawa 9x36 (or thereabouts) lathe
[02:58:15] <SWPadnos> in the back of the 22' Ryder truck
[02:58:26] <Jymmm> then sell it 3 mnths later
[02:58:39] <danimal_garage> still lighter than my shizuoka lol
[02:58:41] <SWPadnos> not after driving to Buffalo to get it
[02:59:11] <SWPadnos> true, that thing is like 8000 pounds or something
[02:59:34] <Jymmm> SWPadnos: you sold it didn't you?
[02:59:38] <SWPadnos> no
[02:59:38] <danimal_garage> yea, it was enough to bottom out the penske which has a 9000lb payload capacity
[02:59:54] <Jymmm> SWPadnos: paper weight?
[03:00:03] <danimal_garage> frame on axle as soon as we loaded it
[03:00:08] <SWPadnos> it's holding down some 2x6 lumber for me
[03:00:14] <Jymmm> gotcha
[03:00:15] <SWPadnos> the lathe anyway
[03:00:16] <danimal_garage> ha
[03:01:05] <SWPadnos> well, my lathe is - the other one was a friends
[03:01:13] <SWPadnos> mine is an HNC
[03:02:53] <danimal_garage> how many of us have hnc's?
[03:03:02] <danimal_garage> is yours running already?
[03:03:09] <SWPadnos> hahahahahahaha
[03:03:13] <SWPadnos> err. no
[03:03:15] <SWPadnos> not yet
[03:03:21] <SWPadnos> I've only had it a year, come on
[03:03:59] <danimal_garage> haha
[03:04:09] <danimal_garage> wow mine will be running before yours?
[03:04:22] <SWPadnos> that's very likely, if you have any time to spend working on it
[03:04:42] <danimal_garage> oh i have to get it running in a week or 2
[03:04:48] <SWPadnos> I alternate between working manically (for pay), and taking a vacation with the wife
[03:04:49] <danimal_garage> i need it to make a living
[03:05:08] <SWPadnos> then you'll definitely be done before me, since I'll be traveling to Dallas this weekend and LA the next
[03:05:18] <SWPadnos> and working in between
[03:07:00] <danimal_garage> busy busy
[03:07:29] <danimal_garage> i'm just wrapping up the servo amp enclosure tonight, then i can finish wiring the servos
[03:07:42] <danimal_garage> spindle stuff is basically wired
[03:08:04] <danimal_garage> then i just have odds and ends like a control pannel and such
[03:08:25] <danimal_garage> which is easy since half of it i can copy from my mill
[03:10:28] <danimal_garage> at least now i understand the basic stuff with the hal so things will go alot faster than the mill did
[03:10:33] <toastydeath> http://www.youtube.com/watch?v=Euw2MA9Jd80
[03:10:35] <toastydeath> airjet loom
[03:11:07] <SWPadnos> yay! I got the splinter out
[03:11:23] <danimal_garage> that's always a good thing
[03:11:33] <SWPadnos> oak cuts nicely when it goes in
[03:11:41] <danimal_garage> youch
[03:12:01] <SWPadnos> and it's so hard to grab the thing with only one hand :)
[03:12:14] <danimal_garage> i usually dig them out with a razor blade
[03:12:36] <SWPadnos> it's hard to cut a finger on one hand with the other one - hard to hold it steady
[03:13:04] <danimal_garage> i dunno, maybe i'm just good at it by now
[03:13:05] <SWPadnos> luckily I have a 7 diopter magnifier and a pair of fine SMT placement tweezers handy
[03:13:09] <danimal_garage> lots of practice
[03:13:13] <SWPadnos> heh
[03:13:14] <SWPadnos> I
[03:13:32] <SWPadnos> I'm not the tattoo/piercing type, so I don't have as much experience
[03:13:34] <SWPadnos> :)
[03:13:41] <danimal_garage> i guess i scrape or dig more than cut
[03:13:58] <danimal_garage> no tats or piercings here
[03:14:40] <danimal_garage> figured one day it'd be smart to not have them in case i ever got a real job
[03:14:50] <SWPadnos> heh, yeah
[03:15:06] <danimal_garage> but it would actually help my business if i had them
[03:15:20] <danimal_garage> my customers tend to have a few
[03:16:00] <SWPadnos> make a CNC tattoo machine
[03:16:07] <danimal_garage> i thought about that
[03:16:11] <SWPadnos> it's kind of like a punch press
[03:16:14] <SWPadnos> well, a CNC punch
[03:16:18] <danimal_garage> alot of risk though
[03:16:44] <danimal_garage> put in a wrong decimal and it can go horribly wrong lol
[03:16:56] <SWPadnos> well, there is that
[03:17:01] <SWPadnos> big fat E-stop button :)
[03:17:35] <danimal_garage> i think i'm going to bring branding back
[03:17:52] <danimal_garage> cant screw up too much with a red hot iron
[03:18:07] <SWPadnos> a few decimals ... (in Z)
[03:18:17] <danimal_garage> haha
[03:18:23] <danimal_garage> yea, they'll hurt
[03:18:39] <danimal_garage> especially in certain parts of the body
[03:18:55] <danimal_garage> might be wise to have very minimal z travel
[03:19:07] <danimal_garage> no need to have 30 inches of travel in z
[03:20:17] <danimal_garage> actually i figured you would have some sort of optical sensor or something that can follow the skin in z
[03:31:18] <Dave911> loggeremc:bookmark
[03:31:35] <Dave911> logger_emc:bookmark
[03:31:35] <Dave911> Just this once .. here's the log: http://www.linuxcnc.org/irc/irc.freenode.net:6667/emc/2010-01-06.txt
[03:55:32] <cradek> does it surprise anyone else that coolant stays on throughout a tool change?
[03:56:17] <danimal_garage> wouldnt you put an m9 before a m6?
[03:57:14] <cradek> you sure could :-)
[03:57:31] <cradek> also m5
[03:57:35] <danimal_garage> did you forget and get sprayed? lol
[03:57:36] <cradek> but, m6 turns off the spindle
[03:57:53] <cradek> ha, I've done it a dozen times, it surprises me every time
[03:57:56] <danimal_garage> m6 is tool change
[03:58:05] <danimal_garage> m5 is turn off spindle
[03:58:06] <cradek> I know this :-)
[03:58:08] <danimal_garage> oh
[03:58:19] <cradek> tool change turns off the spindle but leaves coolant on
[03:58:24] <danimal_garage> i thought you were saying it was the other way around
[03:58:52] <danimal_garage> cant you configure hal to have the spindle off when the spindle isnt on?
[03:59:00] <danimal_garage> coolant off*
[03:59:24] <cradek> yeah I guess I could
[03:59:33] <cradek> so you think it's not surprising (original question)?
[04:00:16] <danimal_garage> oh i thought you ment it was suprising that emc doesnt do it for you lol
[04:00:24] <danimal_garage> yes it would be suprising
[04:01:11] <danimal_garage> just like when the coolant sprays at just the right angle at my part or tool and soaks half my shop including me
[04:01:22] <danimal_garage> (on the mill)
[04:06:21] <danimal_garage> i'm having a mental block... what are those little punch and die sets called that put holes in cabinets for conduit and wire fittings and such
[04:16:22] <SWPadnos> knockouts
[04:16:31] <SWPadnos> or knockout punches
[04:16:33] <danimal_garage> ah thanks
[04:16:38] <SWPadnos> sure
[04:16:45] <SWPadnos> Greenlee, in case you have a load of cash to spend
[04:16:48] <SWPadnos> :)
[04:16:50] <danimal_garage> i have a 1/2" one, but i need 3/4"
[04:17:07] <danimal_garage> yea, the 1/2" one i have is a greenlee
[04:17:20] <danimal_garage> it was like $40 i think
[04:17:29] <danimal_garage> dont feel like spending that
[04:17:34] <SWPadnos> heh
[04:17:45] <SWPadnos> then I'd get comfortable with a dremel
[04:18:07] <danimal_garage> harbor freight has a whole set for $25
[04:18:18] <SWPadnos> punching holes in steel?
[04:18:23] <danimal_garage> wont be great, but it'll work for the occasional hole i have to do
[04:18:32] <danimal_garage> yea, hoffman cabinets
[04:18:41] <SWPadnos> it'll probably work for a couple of holes per punch size
[04:19:01] <danimal_garage> i gotta do 6
[04:19:26] <danimal_garage> i have a surface grinder, i can sharpen them i guess
[04:19:28] <SWPadnos> hmmm. I wonder if that noise was a mousetrap that just sptung
[04:19:30] <SWPadnos> sprung
[04:19:57] <danimal_garage> yuck
[04:20:01] <SWPadnos> yeah
[04:20:04] <danimal_garage> we have rats out here
[04:20:08] <danimal_garage> not mice
[04:20:15] <SWPadnos> but the last thing I tried was mislabeled at Home Depot
[04:20:19] <danimal_garage> i hate dealing with those
[04:20:33] <SWPadnos> it said mouse T-R-A-P, when it should have said mouse F-E-E-D-E-R
[04:20:40] <danimal_garage> hahahaha
[04:20:40] <SWPadnos> they just got one word wrong
[04:21:01] <danimal_garage> i use those raid pouches outside
[04:21:20] <danimal_garage> rat traps inside
[04:21:22] <SWPadnos> they don't go outside here, it's winter
[04:21:52] <danimal_garage> i cought 2 in the garage when i bought my house, havent seen one inside since
[04:22:11] <danimal_garage> true, little cold in VT, huh
[04:22:24] <SWPadnos> it's up to 21 degrees now
[04:22:28] <SWPadnos> woohoo!
[04:22:40] <danimal_garage> wow thats warm!
[04:22:59] <danimal_garage> probably 60-65 here
[04:23:02] <SWPadnos> oh. 22 - it just updated
[04:23:11] <danimal_garage> it was hot today, maybe mid 70's
[04:23:37] <cradek> it was hot here today - got over 10
[04:23:38] <SWPadnos> so no freezing drizzle there then, huh
[04:23:50] <SWPadnos> wow, balmy
[04:24:03] <danimal_garage> not unless i drive 50 miles
[04:24:03] <SWPadnos> I guess it'll be cold for my flight to Dallas on Friday
[04:24:20] <cradek> sun was out - 95 in the greenhouse
[04:25:17] <danimal_garage> my parents live in Maine, i always get to hear about the weather
[04:25:50] <danimal_garage> then they ask me, so i tell them, and they get all bitter
[04:25:59] <danimal_garage> why bother asking then lol
[04:26:49] <danimal_garage> sometimes i throw them a bone and say it's crappier here than there
[04:26:59] <SWPadnos> they live in Maine - they're supposed to be bitter
[04:27:05] <SWPadnos> unless they're eating lobster
[04:27:35] <danimal_garage> they do eat alot of lobster
[04:28:04] <danimal_garage> thing is they just moved there from CT
[04:28:18] <danimal_garage> they could have just as easily moved to a warm climate like i did
[04:28:39] <SWPadnos> oh. in that case, why ask
[04:28:45] <danimal_garage> exactly
[04:29:42] <danimal_garage> granted their house is brand new and twice the size of mine with at least 10 times the amount of land for about the same price
[04:35:00] <LawrenceG> skunkworks, did you buy those drives (BUY IT NOW)?
[04:36:26] <LawrenceG> Item number:160392204653
[04:37:04] <SWPadnos> danimal_garage, see if you can get this for $100 or less: 230420572406
[04:37:26] <SWPadnos> though the reserve is probably pretty close to the buy it now price
[04:44:42] <danimal_garage> that would be nice
[04:45:04] <danimal_garage> but i need it tomorrow
[04:46:05] <danimal_garage> my enclosure is coming out nice, it's the perfect size for my servo amps
[04:46:27] <danimal_garage> just gotta finish welding in a few studs and i'm gunna paint it
[04:46:37] <danimal_garage> then i can have a beer and go to bed:)
[07:31:08] <lilalinux_away> lilalinux_away is now known as lilalinux
[08:27:30] <Jymmm> SWPadnos: Here's one for ya... http://www.electronics-lab.com/projects/power/031/index.html
[09:29:57] <lilalinux> lilalinux is now known as lilalinux_away
[09:32:02] <lilalinux_away> lilalinux_away is now known as lilalinux
[10:17:46] <piasdom> g'mornin all
[11:34:48] <jthornton> dang it's cold here
[11:35:28] <bassogigas> have a plaid ;)
[11:35:57] <bassogigas> p-laid
[14:38:30] <soapy> hi everyone
[14:40:12] <soapy> anyone?
[14:41:01] <archivist> in irc just ask the real question :)
[14:43:15] <soapy> no real question, just thought I'd come and see what was happening
[14:43:32] <tarzan_> just business as usual
[14:43:33] <archivist> welcome!
[14:43:40] <soapy> I've bought small machine, the micRo, and it's stuck in snow, so I don't quite have it yet
[14:43:52] <bassogigas> )
[14:44:11] <bassogigas> you lose a lot of enjoy
[14:44:23] <soapy> I'm reading the PDFs on getting started first, as EMC2 is the control softeware
[14:45:05] <bassogigas> making something to work gives more emotions than sex
[14:45:12] <soapy> well, I'm snowbound, pretty much, and it's a quiet first week after Christmas, so I was really hoping it would have gotten here
[14:45:27] <soapy> oh, I know the enjoyment of making things
[14:45:36] <soapy> I've done quite a bit of that already
[14:45:49] <bassogigas> )
[14:46:06] <soapy> I'm a locksmith, so I'm used to working with stubborn things that don't want to play
[14:46:15] <soapy> and even the locks, on occasion
[14:46:22] <soapy> :-)
[14:46:38] <bassogigas> holy F...!
[14:46:45] <soapy> bass, what's your machine?
[14:47:01] <bassogigas> self-made, no brand
[14:47:23] <soapy> mill? lathe? something odd?
[14:47:35] <bassogigas> eps foam cutting
[14:47:43] <soapy> smart
[14:47:46] <bassogigas> next is milling
[14:48:03] <soapy> eps meaning it reads postscript? or something else?
[14:48:18] <bassogigas> but have not enough motivation yet
[14:48:24] <bassogigas> nope
[14:48:47] <bassogigas> it means Expanded PolyStyrene
[14:48:51] <soapy> I see
[14:49:15] <soapy> 3 axis, or 2.5?
[14:49:24] <bassogigas> 3
[14:49:30] <soapy> wow
[14:49:44] <bassogigas> one of them is "turntable"
[14:50:43] <soapy> have you got a page about it anywhere?
[14:51:12] <soapy> I'd like to CNC my lathe, and a turntable style 3 axis machine would be functionally very much the same
[14:51:56] <bassogigas> in russian only
[14:52:20] <soapy> sadly, not a langauge I read
[14:53:20] <bassogigas> but i do speak english. the question is that our people too lazy to communicate about things that not about "eat and entertain"
[14:54:01] <soapy> I'm English, and we, as a nation, don@t "do" other langauages
[14:54:25] <soapy> we also hate clever people, and sneer at self-made men
[14:54:28] <bassogigas> oh yes! like french
[14:54:34] <bassogigas> people
[14:55:00] <soapy> strangly, yes. Though the French generally have to learn English
[14:55:11] <bassogigas> )))
[14:55:14] <bassogigas> yep
[14:55:20] <soapy> the English have to learn French, i school, and many never get over that
[14:55:50] <soapy> i = in
[14:55:55] <bassogigas> it's a history, nothing to be aggrieved
[14:56:14] <soapy> it doesn't help though
[14:56:25] <bassogigas> not for all
[14:56:34] <soapy> also, we seem to love the old ways of doing stuff
[14:56:53] <bassogigas> chinese not so anxious about that
[14:57:11] <bassogigas> you're lying ;)
[14:57:18] <soapy> trying to get anything high-tech that isn't a toy is hard, and generally means importing it yourself
[14:57:30] <bassogigas> almost all the new music e.g. comes from england
[14:57:43] <soapy> that's not technology though
[14:58:02] <soapy> we hang onto old methods far too long, much of the time
[14:58:15] <bassogigas> well, yes
[14:59:00] <soapy> plus, most music? it's still the same - guitar and drums and some bloke singing
[14:59:10] <soapy> ;-
[14:59:12] <bassogigas> this is also a historic periods and nations' feature connected with aforementioned H. process
[14:59:19] <bassogigas> haha
[14:59:41] <bassogigas> the same music play african aborigines
[14:59:48] <soapy> lol
[14:59:55] <soapy> no comment
[15:00:02] <bassogigas> )
[15:00:36] <soapy> I've been trying to buy a decent stepper motor controller in the UK for ages, it's very hard
[15:00:59] <soapy> in the end, I decided to go with buying a cheap but functional unit fom the USA
[15:01:31] <erwin> erwin is now known as Guest80378
[15:01:34] <soapy> of course, i's been a "pay your money and hope and watch as it gets developed and made" process taking ages, but that's part of the fun too
[15:02:46] <bassogigas> )) i can send you from my Belarus, they make motors 30 years without upgrades
[15:03:04] <bassogigas> the fundamental stability
[15:03:25] <soapy> the controllers are 30 years old?
[15:03:35] <bassogigas> stronger than english ;)
[15:03:39] <bassogigas> nono
[15:03:49] <bassogigas> controllers are up-to-date
[15:04:07] <soapy> the motors and the stuff you are upgrading often is, but the electronics tends to be more up-to-date
[15:04:15] <bassogigas> steppers only have the same construction as 30 years ago
[15:04:19] <soapy> it's the controllers that are the issue
[15:04:32] <bassogigas> i understand of course
[15:04:35] <soapy> either silly money or not enough for a hobby ytype of machine
[15:04:39] <bassogigas> but anyway(s)
[15:05:13] <soapy> so what do you carve the polystyrene for?
[15:06:05] <bassogigas> architectural elements, ads, packaging. everything
[15:06:27] <soapy> good hinking
[15:06:48] <soapy> a place near here had 4 stone balls stolen recently, they are worth a fortune
[15:07:04] <archivist> I got my stepper drivers in the UK
[15:07:17] <soapy> replacing them with 4 big polystryene balls would be a great idea if they were then texture painted
[15:07:26] <soapy> archivist, where from?
[15:07:27] <bassogigas> ))
[15:07:40] <archivist> arc eurotrade
[15:07:52] <soapy> and, of course, the poly balls would be a breeze to fit with just a lader!
[15:07:52] <bassogigas> yep PS doesn't decompose in years
[15:08:24] <bassogigas> http://www.arceurotrade.co.uk/ ?
[15:09:29] <soapy> foudn them
[15:10:54] <soapy> http://www.arceurotrade.co.uk/Catalogue/Stepper-Motors/Stepper-Drivers
[15:11:55] <soapy> ace, and they have a sale on too!
[15:11:58] <soapy> thanks
[15:12:23] <archivist> they are only 30 ish miles from here
[15:13:14] <soapy> I've got a load of steppers upstairs sat in boxes, and I'm typing his on the controller PC that I was going to use before I bought a full version
[15:13:33] <soapy> where's that then?
[15:13:41] <soapy> I'm in teh Wes Milands
[15:14:00] <archivist> sunny swadlincote
[15:14:13] <soapy> try again - it's a wireless keyboard - I'm in the West Midlands
[15:14:26] <soapy> it's sunny here, and bright
[15:14:34] <soapy> the foot of snow reflects the light nicely
[15:14:54] <soapy> :-
[15:15:13] <archivist> not enough snow here for proper fun
[15:16:13] <soapy> took me 40 minutes to get up the drive today
[15:16:43] <soapy> nearly totalled the van as it slid down a hill and I lost all traction on all wheels for long enough to slide sideways
[15:17:10] <soapy> I recovered it nicely on the second correction, but thank god the 4x4 coming the other way turned the corner fast enough!
[15:17:50] <soapy> he was out the way, but I'd never have stopped in time if he hadn't turned left off the road we were on onto another one
[15:18:09] <soapy> which controller did you get?
[15:19:28] <archivist> I have the 4.2A one one one axis and an earlier one they no longer sell on the other 4
[15:20:00] <soapy> I've got 14 Astrosyn NEMA 23 steppers upstairs, and a few more that are smaller
[15:20:16] <soapy> I'm going to buy 3 of those 4.2 ones, I think
[15:21:36] <archivist> although my "thing" is home brew I do use lumps from other machines
[15:22:24] <soapy> often the best way - you know it works!
[15:22:50] <soapy> my dad's great at ripping one machine apart and jigging it to another one to acheive some aim
[15:23:39] <soapy> we have this "semi-automatic" pipe bender dad put together
[15:24:06] <soapy> used to take 5 minutes per time, now you can do both sides of the part in under 2 minutes, and with better accuracy
[15:24:53] <archivist> make a cnc bender next
[15:24:59] <soapy> switched hydrualics harvested from another machine or two, all welded and jigged to a previousl manual machine
[15:25:42] <soapy> well, this one is tuned to the n-th degree for the part it makes, so CNC is a bit pointless for that
[15:25:57] <soapy> we did have a big CNC bender, but we've just sold it
[15:27:00] <soapy> for batch production of parts, there's no way that CNC is perfect compared to a dedicated machine to make that part
[15:27:02] <skunkworks_> wow
[15:27:04] <skunkworks_> http://cnczone.com/forums/showthread.php?t=89856
[15:27:42] <soapy> however, for making series of parts, or coming back o something after making a differnt thing, then CNC is ideal
[15:29:31] <soapy> a CNC convention? could be fun
[15:30:32] <archivist> 3 uk emcers met at the midland model engineer ex
[15:31:51] <soapy> riht, thank for the links
[15:32:00] <soapy> gotta go chop some wood for the fire
[15:36:13] <MarkusBec_away> MarkusBec_away is now known as MarkusBec
[15:47:55] <skunkworks_> has anyone heard if stuart is having another fest? Did he have any issues with the last one?
[15:50:19] <cradek> my understanding is that he'd happily host us anytime we want to visit.
[15:50:44] <skunkworks_> he sure is a nice guy :)
[15:50:58] <cradek> yep he's a winner
[16:10:14] <Jymmm> skunkworks_: except you're blackballed of course you rebel you!
[16:10:44] <Jymmm> http://en.wikipedia.org/wiki/Organic_light-emitting_diode
[16:13:55] <skunkworks_> didn't toshiba have issues with there organic big screen televisions?
[16:14:00] <skunkworks_> thier
[16:14:02] <skunkworks_> their
[16:14:33] <archivist> the're
[16:14:46] <tom3p> you guys using speech to text?
[16:15:05] <skunkworks_> heh
[16:15:08] <Jymmm> tom3p: not in here
[16:15:19] <archivist> irc is deaf
[16:15:22] <skunkworks_> I am using brain to keyboard which seems a bit flakey
[16:15:42] <tom3p> you missed they're
[16:16:18] <Jymmm> and "Tharrrrrr she blows!"
[16:38:01] <ries> hey Guys, does EMC2 support auto squaring?
[16:39:05] <lilalinux> lilalinux is now known as lilalinux_away
[16:39:10] <lilalinux_away> lilalinux_away is now known as lilalinux
[16:40:48] <tom3p> ries you can probe a side, calculate the angle and rotate the program in the xy plane ( no can do in g18 g19 )
[16:41:09] <tom3p> or probe the part and fix your setup ;)
[16:42:25] <tom3p> to make it automatic, just write the program that does those things
[16:42:29] <tom3p> 'just'
[16:43:02] <ries> tom3p: With program you mean G-Code, right?
[16:43:18] <ries> So I can potentially run a g-code program that does the auto-squaring for me if I want to...
[16:43:45] <tom3p> yes, it'd need some variables and hardware to probe with
[16:44:15] <bill20r3> that'd be nice for etching double sided pcbs
[16:44:48] <bill20r3> to probe 2 known hole locations, and have it automagicially adjust to my crooked alignment.
[16:47:18] <ries> tom3p: I never knew that g-code was capable of doing that.. I thought it was only tro control (move positions, starts something...)
[16:47:26] <tom3p> imo its better to setup well. probing in cnc's is not used for precision , its used to check for goof-ups. that is its not meant to be a cmm.
[16:47:55] <tom3p> ries gcode can probe, math can calc angle, program rotate can rotate the x&y positions
[16:47:56] <ries> bill20r3: what we use to do is simply drill a hole in the PCB and make sure it alligns on once side straight.
[16:48:20] <ries> when you turn it around you can use that same pin again... it's bin a looooooong time since I did that but something like that worked for us
[16:48:48] <bill20r3> so you have some sort of lip on the table that you can align the board flat against?
[16:49:47] <bill20r3> so that aligns the "x", and you only need to touch-off at a known '"y" point?
[16:49:49] <ries> tom3p: in my case it could be that my gantry is off by 1 or 2 mm (table is around 1.5 x 2.5 meters) so before a job I could potentially square it by changing one stepper a couple of steps into one or teh other direction
[16:50:21] <ries> bill20r3: indeed.... ... it could be that we used two pins
[16:51:03] <ries> then we asked the machien first to drill 2 pins, on in the lower left and right corners, these pins where standard for teh machine
[16:51:16] <ries> then you press your PCB on these two pins and start milling the top side
[16:51:30] <ries> then you turn your PCB up-side-down and press it in teh same pins
[16:51:38] <ries> then you are 100% sure that top and bottom are alligned
[16:52:06] <celeron55> i was going to suggest the same
[16:52:10] <ries> like I said.. it's been a while since I made a PCB ( 15 years orso....) but that's how we did it
[16:52:16] <bill20r3> so you drill the pin-holes, and then re-mount it on the pins, before starting actual milling?
[16:52:23] <ries> celeron55: then it must work :)
[16:52:29] <ries> bill20r3: indeed
[16:53:01] <bill20r3> I'll have to give that a try.
[16:54:17] <bill20r3> I'll tape down a sheet of plexi with some temporary pins, until I've got it working properly, then put permanent pin mounting holes in the table.
[16:59:45] <skunkworks_> wow http://search.digikey.com/scripts/DkSearch/dksus.dll?vendor=0&keywords=amt102-v
[16:59:51] <skunkworks_> they also have an index pulse.
[17:09:32] <alex_joni> skunkworks_: capacitive?
[17:10:32] <jepler> skunkworks_: that looks like the kind that awallin mentioned on his blog
[17:10:39] <jepler> I recall all those colorful inserts
[17:11:07] <skunkworks_> yes - I have 4 in my hand. They look cool :)
[17:11:32] <skunkworks_> I thought for $29 I could take a risk and try them
[17:11:43] <skunkworks_> I wonder how accurite they actually are.
[17:12:12] <skunkworks_> I thought I remember reading a spec somewhere
[17:12:34] <alex_joni> http://www.cncdrive.pl/download/AMT103V_DIP_switch_settings.pdf
[17:12:45] <alex_joni> 2048 ppr @ 7500 rpm
[17:13:00] <skunkworks_> this is interesting... Note: Some stepper motors may leak a magnetic field causing the AMT index pulse to not function properly
[17:13:11] <alex_joni> or 1024 ppr @ 15000 rpm
[17:13:11] <skunkworks_> alex_joni: way faster than I need :)
[17:13:13] <jepler> "Note: Some stepper motors may leak a magnetic field causing the AMT index pulse not to function properly" http://www.cui.com/pdffiles/AMT102-V.pdf
[17:13:26] <alex_joni> sounds like more than enough for cnc
[17:14:12] <skunkworks_> these are the ones that mariss likes for his servo drives
[17:14:32] <skunkworks_> too bad he cannot use the index... har har har
[17:14:57] <jepler> PPR is different than accuracy, though. It could have systematic error (like how microsteps are uneven in steppers, for instance)
[17:15:26] <alex_joni> jepler: true, it does look pretty crappy for 2048 ppr
[17:15:28] <skunkworks_> right - that is what I was wondering - thought I read a arc-sec spec or something like that.
[17:15:42] <alex_joni> skunkworks_ could take one for a spin
[17:16:14] <jepler> usdigital specifies "cycle error", "symmetry" and "quadrature" of their (optical) encoders in °e
[17:16:18] <skunkworks_> yes - I could put one of my industrial encoder on the same shaft and graph the error in emc
[17:16:30] <jepler> such as: cycle error max 5.5°e
[17:17:12] <jepler> I don't see information like that on any of the PDFs about the CUI encoder
[17:18:14] <alex_joni> http://www.cui.com/getPDF.aspx?filename=AMT102-V.pdf
[17:18:50] <skunkworks_> damn - you are quick. I had just gotten there..
[17:19:00] <alex_joni> that's the "datasheet"
[17:19:04] <jepler> oh, that pdf has multiple pages
[17:19:07] <jepler> maybe I should look past the first one
[17:19:16] <jepler> still don't see accuracy information
[17:19:30] <alex_joni> nope, nothing useful in there
[17:19:37] <skunkworks_> nope
[17:19:47] <skunkworks_> that is scary
[17:19:48] <skunkworks_> ;)
[17:20:37] <skunkworks_> the bldc servos from keling have 2 small tapped holes that line up to mounting holes on the encoder.
[17:20:44] <jepler> that's convenient
[17:20:50] <skunkworks_> (not very deep - but will work)
[17:22:08] <alex_joni> does this work for you? http://www.amtencoder.com/mech_tolerances.pdf
[17:22:10] <skunkworks_> seem to be the same pitch/diameter as most laptop assembly screws. I seem to have a ton
[17:22:23] <skunkworks_> alex FTW
[17:22:57] <alex_joni> crashed my browser :/
[17:22:58] <skunkworks_> actually - doesn't give any usefull info either
[17:23:26] <jepler> alex_joni: text version http://pastebin.ca/1740353
[17:24:10] <alex_joni> yeah, it loaded finally
[17:24:42] <alex_joni> AH-HA he says
[17:24:44] <alex_joni> http://www.amtencoder.com/amtfaq.asp#a2
[17:25:04] <alex_joni> +/- 15 arcmin
[17:25:38] <jepler> eep, the rest of the text of that FAQ is scarier
[17:25:41] <jepler> The position output at constant speed is without delay, but at acceleration, there will be a lag equal to the time constant multiplied by the acceleration. The following table references the accuracy and time constants for each resolution setting-
[17:28:16] <skunkworks_> interesting. I think it would be cool to map the actuall error. comparing it to one of my other optical encoders.
[17:28:34] <cradek> sounds like it's predictive
[17:28:48] <alex_joni> something you can probably tune using ffx
[17:29:29] <jepler> (75000/in) * .4ms * (32in/sec^2) = about 1 count/ms error during accel/decel on zenbot
[17:29:30] <cradek> maybe you are right (ff2)
[18:14:04] <Yoshi47> is there a cheap breakout board that isn't has hefty as the ones linked on the website for these drivers? http://www.schmalzhaus.com/EasyDriver/
[18:21:54] <tom3p> ries: "gantry is off".. does that mean X not square to Y? you cannot programmaticly get rid of that. you cannot 'hit' the positions that gcode would ask for. that has to be fixed mechanicly/geometricly.
[18:24:49] <ries> tom3p: x might be off 1-2mm to Y, making it not precise 90 degrees
[18:26:00] <ries> tom3p: I understand what you are saying, but since it's a large it's hard to get this exact... so when you can programaticly move each stepper a bit off from each other, 'forcing' it into a square, then you re set..
[18:26:36] <tom3p> you cannot fix that with a program, do you know how a pantograph works? the corners just are not on the really square grid , you cannot get there.
[18:26:57] <tom3p> you might mean you can get close enogh, thats true, but never correct
[18:28:42] <ries> I just need to be close, one other method might be to 'square' the gantry against my stop blocks, then turn power on the steppers, this already would give me a close enough situation. However, I was thinking it would be nice if the software could do this for me...
[18:29:07] <ries> the gantry against my stop blocks <= By hand...
[18:32:05] <tom3p> imagine a true square grid with pivots at each intersection, thats your possible positions, you cannot step off the grid, only onto intersections, now push on one corner so each square turns to a parallelogram. thats what you're describing with '1 to 2 mm off' . now you cannot get to the old locations that were square, its impossible to do in software. the hardware blocks is a better approach.
[18:33:51] <tom3p> heh i have my own impossible software to work on ;)
[18:35:01] <celeron55> i don't see anything impossible in that, except that if the control resolution is low, the correction will make some glitches to the movement
[18:35:31] <celeron55> or was that what you were saying? :P
[18:39:33] <tom3p> celeron imagine a square and a parallelogram, their corner cannot be coincident. so you cannot move from the parallelogram's corner to the square
[18:39:37] <tom3p> s corner
[18:40:12] <MarkusBec> MarkusBec is now known as MarkusBec_away
[18:41:02] <MarkusBec_away> MarkusBec_away is now known as MarkusBec
[18:42:05] <celeron55> yes, but because there are lots of positions in the distance of 1-2mm, you can get much closer than you'd get without software compensation
[18:42:16] <celeron55> not exactly, of course
[18:45:56] <ries> celeron55: Basically because the gantry has two stepper motors on each side, you can force (but not to much) the gantry squary
[18:46:02] <ries> In mach3 they call it auto squaring
[18:48:13] <tom3p> ries thats different, you want measure the out of square an correct for it. you'd need an external standard ( like a 'square )
[18:48:37] <tom3p> then the grid would become square
[18:49:41] <ries> tom3p: exactly.... may be I wasn't clear....
[18:49:43] <tom3p> tricky problem tho, this must occur before homing
[18:50:18] <tom3p> goo idewa, did you search the gantry solutions so far in emc2?
[18:50:58] <celeron55> ries: are you talking about a homing sequence?
[18:51:26] <tom3p> iirc the solutions were all encoder based rather than alignment standard based
[18:52:07] <ries> celeron55: no, I talk about squaring...
[18:52:13] <ries> I am drawing a image right now... just a sec
[18:52:25] <celeron55> ok
[18:52:55] <archivist_emc> one uses two home switches on the gantry to maintain square
[18:53:09] <archivist_emc> so it is related to homing
[18:54:14] <MarkusBec> MarkusBec is now known as MarkusBec_away
[18:55:08] <tom3p> the 2 encoder idea is based on the 2 encoder's index making it square ( the 2 pulses are in exactly the right place), ries suggests that a more dynamic squaring could be done against a standard
[18:56:25] <tom3p> maybe one encoder and a magnetic clutch nailing a pivot in one positiion
[18:56:47] <ries> http://imagebin.org/78586
[18:57:09] <archivist_emc> one could measure a standard and know the offset one side needs to be from home
[18:57:20] <ries> archivist: it's realted to homing in that you could use teh same switch for it.... but it's not a homing problem
[18:57:52] <ries> in any large machine with a gantry, in my case I use rack and pinions with V rollers over a metal rail
[18:57:59] <archivist_emc> two switches so you get it square
[18:58:02] <ries> the gantry might be off a tiny little bit
[18:58:10] <ries> archivist_emc: two switches so you get it square <= Exactly
[18:58:47] <ries> once the stepper motors are powered they can move each side of the gantry by a fraction to make it square.. once it's quary you step each stepper in sync keeping teh gantry square
[18:58:57] <ries> and I was wondering if EMC2 could do this form of auto squaring
[18:59:01] <celeron55> the only thing you need is a homing sequence which drives the sides independently according to two switches, one per side
[19:00:13] <archivist_emc> search the mailing lisk,wiki and the irc logs, it is documented somewhere
[19:01:13] <ries> archivist: I tried to look for it already (using google) but didn't find the right page yet... if you say it's documented, I will find it
[19:01:32] <tom3p> one switch/contact would make first, then drive other joint till other switch/contact made, then lock the relationship
[19:02:05] <ries> that's the idea indeed
[19:02:49] <tom3p> ries: it's been talked about for sure. maybe look at the configs, is there a gantry? then it oughta have some kind of solution
[19:04:02] <tom3p> check out 'stepper-gantry' in configs
[19:04:46] <ries> will do that
[19:06:36] <tom3p> ries: fergetaboutit i dont see it adddressing the problem, y just uses home sequence '1' same as x
[19:08:33] <tom3p> looks more to the point http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?FiveAxisGantry
[19:13:47] <ries> I will check that...
[19:15:46] <ries> That links just talks about 5 axis, not about squaring it .. unless they use a other term for it
[19:17:37] <tom3p> right,sorry again, all those joints are home type 0
[19:17:47] <archivist_emc> ries, its the y1 y2 discussion
[19:18:28] <micges> ries: squaring on gantry you can get by defining homing sequence that both Y axes are homing at once, then amount of home offset is sqare correction (more less)
[19:20:14] <skunkworks_> micges: are you homing any machines that have to servos per axis? (if so - how are you doing it?)
[19:20:32] <skunkworks_> two*
[19:21:16] <micges> hmm
[19:22:07] <micges> 1. you must precise set scale for both joints
[19:22:35] <micges> 2. set homing swiches more less precise
[19:22:46] <micges> mount*
[19:23:55] <micges> define two indentical joints in ini file with IDENTICAL homing vel params (home vel, latch vel, final vel)
[19:24:51] <micges> difference between home_offset between joints is sqare correction (if needed)
[19:24:54] <micges> that all
[19:25:15] <micges> oh two joints must have the SAME homing_sequence
[19:25:21] <ries> micges: since I would have a X and slave A, would the homing sequence not control both motors at the same time? Or can this been done specially?
[19:27:03] <micges> slave A? gantry should have XYYZ config
[19:27:43] <cradek> A is an angular axis
[19:27:56] <skunkworks_> A is a mach thing...
[19:27:56] <micges> skunkworks_: core difference is that you must use gantrykins in hal
[19:28:10] <tom3p> the old docs on 5 axis gantry called it salve A, thats obscuring the issue]
[19:28:11] <skunkworks_> micges: ah - that is what I was wondering/
[19:28:47] <skunkworks_> micges: so you have to switch from joint to world after homing.
[19:28:51] <micges> that is kinematics type BOTH, so you all must look out to not jog one joint at once
[19:28:58] <micges> exactly
[19:29:38] <micges> shortly my GUI doesn't allow user to see joints mode :) (safer)
[19:29:47] <skunkworks_> heh
[19:30:21] <skunkworks_> micges: so the jog wheel makes the connection to both joints?
[19:30:42] <skunkworks_> (yy)
[19:31:08] <micges> brb
[19:32:00] <jepler> I wonder if it would be better to think of one joint as y and one joint as dy
[19:32:20] <jepler> then you'd have some sum components so that the second motor's stepgen (or whatever) gets an input of y, and the other gets y+dy
[19:32:35] <jepler> and something similar on feedback
[19:32:47] <jepler> then the things you jog in joint mode are "both motors together" and "adjust alignment"
[19:33:08] <jepler> it's a slight abuse of the joints model but maybe it matches the real world actions you'd like to do better
[19:33:34] <tom3p> (my brother darrel & my other brother darrel)
[19:33:45] <jepler> then homing gets better: the dy joint has no home switch as such (manually adjust alignment), then you home the y joint
[19:35:18] <danimal_garage> cradek: i'm getting ready to hook up the servo amps pretty soon here, i'm a little confused on the connections... i see act vel and vel cmd..... i was thinking act vel was from the tach and vel cmd was 0-10v from the 7i33?
[19:36:38] <cradek> yes
[19:36:44] <danimal_garage> cradek: then i see v+, v-, and v0
[19:37:03] <cradek> the amp is differential. its job is to make actual and commanded match
[19:38:20] <danimal_garage> ok cool
[19:39:35] <danimal_garage> v+, v-, 0v, and INH were also connected to the control... do you know what those connections are, or if they're needed?
[19:39:44] <cradek> heh
[19:40:08] <cradek> those are the logic power supply and inhibit/enable
[19:40:13] <cradek> yes they are needed :-)
[19:40:16] <jepler> cradek: does danimal_garage have the same amps as one of your machines or something?
[19:40:20] <micges> skunkworks_: yes, but teleop mode is somewhat buggy
[19:40:38] <cradek> yes
[19:40:39] <danimal_garage> jepler: we have identical lathes
[19:40:59] <jepler> aha
[19:41:11] <danimal_garage> logic PS is 12v, correct?
[19:41:12] <cradek> but these answers are pretty general and self-evident considering the markings, I think
[19:41:29] <cradek> one approach would have been to meter them before disassembling the old control :-)
[19:41:58] <skunkworks_> http://www.electronicsam.com/images/KandT/pcbmill/bldcenc1.jpg
[19:42:00] <cradek> I think you ground INH(ibit) to enable the amps. tie this to axis.N.amp-enable
[19:42:02] <skunkworks_> http://www.electronicsam.com/images/KandT/pcbmill/bldcenc2.jpg
[19:42:16] <danimal_garage> ah ok cool
[19:42:18] <tom3p> jepler: ries: re: gantry homing: that locks the 2 joints together using a base and a base+offset, ok. one joint's switch (unsure which) hits the reference, that joint is held, then the other joint is moved further in same dir till it switches.
[19:42:58] <danimal_garage> i guess i should have metered them :)
[19:43:26] <cradek> logic PS might have been +-15 originally but I used +-12
[19:43:48] <cradek> also I think the velocity command is +-8 on these amps, not +-10
[19:44:45] <skunkworks_> probably because you are using +-12 logic supply ;)
[19:45:09] <danimal_garage> oh ok, i can set that in the hal, right?
[19:45:18] <cradek> true, but I think it says that in the amp's docs
[19:45:28] <skunkworks_> heh
[19:45:29] <danimal_garage> arent you using a computer PS for your amps?
[19:45:30] <cradek> danimal_garage: yes something.something.maxoutput
[19:45:34] <cradek> yes I am
[19:46:03] <danimal_garage> ok cool, thats what i was planning too
[19:46:46] <danimal_garage> i just finished my enclosure for them
[19:47:12] <cradek> give us pics when you can!
[19:47:17] <danimal_garage> got a nice big fan in there for them
[19:47:24] <danimal_garage> will do, maybe today
[19:48:01] <ries> tom3p: indeed.... so my original question, does EMC2 has a screen/feature for doing this sequence or is it only g-code I need to write or lookup?
[19:48:01] <danimal_garage> i welded some studs to the machine enclosure on the left side, about chest-high and i'm putting it there
[19:48:40] <danimal_garage> it's far enough back to allow bar feed if needed, and it doesnt keep me from reaching anything in the machine
[19:48:47] <cradek> not in the way of the back of the spindle I hope
[19:48:51] <cradek> ah
[19:48:59] <cradek> yeah I always have bar sticking out of there
[19:49:31] <danimal_garage> i'll probably never use any sort of bars, but i didnt want to inhibit the use of it
[19:50:36] <danimal_garage> now all i have left to mount is the monitor/keyboard
[19:50:52] <danimal_garage> i'm going to mount a swinging arm on the left side for that
[19:53:28] <tom3p> ries: it looks like a project for you to invent, and it seems like it can be done.
[19:54:08] <ries> tom3p: I think I will work on that then... good practise as it seems I need to learn python then :) The basic idea is to make it a menu/screen into axis
[19:55:21] <cradek> special homing is done in hal, not by adding things to the gui
[19:55:50] <cradek> also not in gcode, because gcode only runs after the machine is homed
[19:55:52] <tom3p> ries: for the meantime, you can use the physical square, home one axis, and loosen a coupling to make the other square. then you can get work done while writing the magic hal code
[19:56:21] <tom3p> tighten the coupling after squaring of course
[19:56:35] <ries> tom3p: my machine is almost done actually.. so I currently have some time
[19:57:37] <ries> for the moment, if I am not done yet.. I will square it against my stop blocks by hand before I turn the machine on... that would be accurate enough for me
[19:57:54] <skunkworks_> I think realtime isn't realtime on his machine.. http://cnczone.com/forums/showpost.php?p=712920&postcount=7
[19:59:57] <skunkworks_> The best part of those encoders - they have the pin outs casted into the cover.
[20:01:38] <Dave911> logger_emc:bookmark
[20:01:38] <Dave911> Just this once .. here's the log: http://www.linuxcnc.org/irc/irc.freenode.net:6667/emc/2010-01-06.txt
[20:03:11] <tarzan_> logger_emc: help
[20:14:20] <andypugh> Hurrah! I don't know if it is the ferrites on the motor cables, or the switch to shielded cable for the motors, but I no longer seem to have any VFD noise issues.
[20:14:36] <cradek> yay
[20:22:28] <andypugh> I probably should have looked at the motor leads earlier, in retrospect. Nice long aerials that they are.
[20:23:36] <skunkworks_> cradek: did you end up getting an encoder mounted on the spindle?
[20:23:56] <cradek> still working on the mechanical part - it's kind of complicated
[20:23:59] <skunkworks_> heh
[20:24:06] <skunkworks_> what diameter shaft was that?
[20:24:28] <cradek> 20mm I think
[20:24:36] <skunkworks_> oh - wow. big
[20:25:17] <andypugh> Top Tip. The 12-piece ER32 collet sets on eBay are not a great bargain, as a set that has 6-7, 8-9, 10-11 etc is no good for 7.5, 9.5 etc....
[20:25:21] <MarkusBez> MarkusBez is now known as MarkusBec
[20:25:37] <cradek> I think ER32 is meant to collapse 1mm, no?
[20:25:56] <cradek> oh, I see what you mean now
[20:26:27] <andypugh> I just spent £40 filling the gaps
[20:27:16] <cradek> even worse are the inch sets
[20:27:48] <cradek> it's nice if you want to use just fractional stuff, since they fit perfectly, but for in-between you don't have proper coverage
[20:27:51] <andypugh> I am about to make an encoder disc, but the set won't hold my 1/2" dia slitting saw arbour. I could have turned down the arbour, but I am bound to want to hold 1/2" in the future.
[20:28:11] <cradek> no 12-13?
[20:28:32] <andypugh> Surely in that case you can buy a mm set, which does cover the full range (if you get the full set, not the cheap part set)
[20:28:51] <cradek> yep, but they're not so available here
[20:28:58] <andypugh> Indeed, no 12-13. I started on the wrong numbers with my example.
[20:29:04] <cradek> ah
[20:29:06] <cradek> that bites then
[20:30:41] <andypugh> http://cgi.ebay.com/New-19-PC-S-ER32-SPRING-COLLETS-SET-From-2mm-20mm-US_W0QQitemZ160369914571
[20:30:58] <andypugh> Would have been cheaper to buy that set than complete mine.
[20:31:07] <cradek> wow those are cheap. they must be awful.
[20:31:22] <cradek> (I have ER40)
[20:32:01] <archivist_emc> andypugh, I had some from him
[20:32:24] <andypugh> Yeah, I think I have stuff from him too.
[20:32:49] <archivist_emc> location is wrong as he is hong kong
[20:33:33] <cradek> I guess maritool has them for $14.50 each (US made, good quality)
[20:34:37] <andypugh> Yeah, looking at my eBay history I have bought a number of things from him. The ER16 set, I think.
[20:34:39] <archivist_emc> I have done a bit of measuring and have found errors :)
[20:38:16] <andypugh> COnsidering the errors introduced by my incompetence, I can live with cheap and barely adequate tools.
[20:40:28] <archivist_emc> I also while testing found a gotcha with ER collets, use the full length of its grip else it becomes a taper
[20:42:05] <cradek> ouch, I guess I am not surprised
[20:43:57] <archivist_emc> I turned a stub(too short) and then fitted a holder to the stub and wondered why it still had play
[20:43:59] <cradek> wow, this site says clamping torque for ER32 is 125 ft lb and for ER40 is 200 ft lb
[20:44:15] <cradek> I know I've never tightened a collet chuck to 200 ft lb
[20:44:44] <cradek> my handle is only 10-12? inches long
[20:44:45] <skunkworks_> that is called 'covering their butt'
[20:44:47] <archivist_emc> nor me, that explains why there are so many nut and spanner sales then
[20:45:16] <cradek> I'm not sure I *could* with the spanner I have
[20:46:05] <cradek> do people use a hammer?
[20:47:34] <archivist_emc> well and engineer might not but an operator
[20:48:04] <tom3p> is there a multiplier due to thread and angle?
[20:48:37] <archivist_emc> and diameter probably
[20:49:13] <andypugh> Hang on, is that tightening torque or clamping toque?
[20:49:25] <tom3p> clamp
[20:49:37] <tom3p> "site says clamping torque"
[20:49:39] <cradek> another site says 105Nm = 75 ftlb
[20:49:48] <cradek> (for ER32)
[20:49:52] <cradek> talks about using a torque wrench
[20:50:17] <cradek> about clamping torque it says "Schedule of the torque moments for clamping the chucks"
[20:50:20] <cradek> whatever that means
[20:51:48] <archivist_emc> look at force on pull studs as well, ive seen silly figures
[20:52:17] <tom3p> i was taking stuff out of the office & came across an old engrish funny. it was a drawing of spool of edm wire, full of knots, and the text " the wire has become entangled complicatedly"
[20:52:27] <cradek> I use a torque wrench for my pull studs - I think I set them at 60 ft lb
[20:52:47] <cradek> much more and I think the taper would bulge
[20:53:37] <cradek> I did check the taper mating with a brand new good quality tool holder and a new stud torqued at 60, and it looked great
[20:53:45] <cradek> that's as scientific as I get
[20:54:46] <archivist_emc> the guy that made his own spindle with belville washers did quote some numbers for the force needed iirc
[20:55:46] <archivist_emc> having had the odd tool come loose perhaps I should "lean" on the machines a bit harder
[20:56:02] <cradek> what comes loose?
[20:57:00] <archivist_emc> when gear cutting had the cutter come loose on the arbour
[20:57:04] <andypugh> I anticipate a pneumatic/bellville arrangement at some point. I was rather pleased with the idea, then found it had already been invented several times...
[20:57:28] <archivist_emc> reinventing the wheel++
[20:58:09] <cradek> yeah I think that's been done... :-)
[20:58:35] <cradek> http://www.maritool.com/Retention-Knobs-Pull-Stud-Sockets/c67_77/p374/RKW40/product_info.html
[20:58:41] <cradek> I use one of these on a torque wrench
[20:58:51] <cradek> have I said lately that I like maritool's stuff?
[21:00:08] <jepler> :cold
[21:00:10] <jepler> argh
[21:00:56] <andypugh> Tormach have a bellville-pneumatic system for their tooling system. If I do do it then I willl probably actually use hydraulics, a single-sided motorcycle brake caliper is almost exactly the right shape to do it nicely.
[21:00:56] <andypugh> ]
[21:01:25] <cradek> neat
[21:03:06] <andypugh> The Tormach system uses a squeeze rather than a push to avoid loading the spindle bearings, which is neat.
[21:04:20] <archivist_emc> hmm an idea for you andypugh , the latest clutch cylinders are around the shaft
[21:05:36] <andypugh> Might work. I can more easily see how a squeezer can sit clear of the rotating parts when not being used, though.
[21:05:55] <archivist_emc> you should do some "research" at work
[21:06:18] <andypugh> Aye, there must be all sorts of useful actuators in those DSG gearboxes.
[21:06:45] <archivist_emc> Dean Smith and Grace :)
[21:08:33] <andypugh> I did use a Dean Smith and Grace gearbox for a testing machine once.
[21:09:32] <andypugh> DSG headstock, 100kg flywheel @ 3000rpm, pnuematic clutch and a cam. 0-50mph in 10mm, 50mm total travel. Never before have I been so frightened to press a mouse button.
[21:10:57] <andypugh> I invented my own coaxial capacitative displacement transducer for that. It needed to be fast, non-contacting and cheap to replace.
[21:12:10] <archivist_emc> how did you measure shaft torque
[21:12:36] <andypugh> I didn't. I had a load-cell on the far side of the specimen being squished.
[21:13:41] <archivist_emc> I used to work at a company that did the electronics for a torquemeter
[21:14:41] <andypugh> Blimey, I still have a picture on my web page.
[21:14:42] <andypugh> http://www.bodgesoc.org/plast.gif
[21:16:17] <andypugh> For scale, that is a 30hp motor...
[21:18:31] <archivist_emc> frame looks a bit light for 30hp
[21:19:04] <Jymmm> archivist_emc: it's titanium frame!
[21:19:05] <andypugh> There was no real force through the frame, and the motor is pretty rigid to the gerabox.
[21:19:38] <andypugh> It was (I think) 5" heavy angle.
[21:26:43] <frallzor> eyey
[21:44:04] <skunkworks_> heh
[21:44:05] <skunkworks_> http://www.ihcnc.com/pages/cnc-mill.php
[21:44:26] <skunkworks_> rigid tapping
[21:44:47] <skunkworks_> manual feed or with a SyncroFlex tap holder by Tapmatic
[21:47:13] <micges> mach (bleh)
[21:47:33] <alex_joni> skunkworks_: ewww.. windows
[21:48:12] <alex_joni> and ewww.. 10k$
[21:48:19] <skunkworks_> heh
[21:48:44] <archivist_emc> high price means its good...doesnt it :)
[21:49:05] <celeron55> 8)
[21:49:18] <cradek> I just can't fathom why people buy new cnc machines
[21:49:19] <micges> today we have customer that want to install mach instead of emc as a controller (becouse he 'know' it and it is on windows), will see how soon will he back to us :)
[21:49:35] <frallzor> fookity fook, might get my cheap ebay computer tomorrow!
[21:50:59] <lilalinux> lilalinux is now known as lilalinux_away
[21:51:04] <lilalinux_away> lilalinux_away is now known as lilalinux
[22:02:50] <ries> micges: I couldn't even get mach3 running....
[22:02:51] <alex_joni> skunkworks_, jepler: http://www.anderswallin.net/2009/12/cui-encoders/
[22:13:02] <skunkworks_> that is exactly the way mine came.
[22:15:53] <danimal_garage> with rigid tapping, how does emc compensate for spindle coasting time when stopping?
[22:16:37] <danimal_garage> i know the z feed adjusts for the spindle speed, right? but what keeps the tap from going too deep or shallow?
[22:18:00] <danimal_garage> meaning how does it know when to turn the spindle off so it doesnt coast too much and the tap goes too deep?
[22:18:16] <alex_joni> its the other way around
[22:18:22] <alex_joni> z feed is synched to the spindle
[22:18:39] <alex_joni> the how does it know is in the g-code
[22:18:56] <alex_joni> if you tell it to go to z0.05, then it will stop the spindle there
[22:19:04] <alex_joni> or rather start decel
[22:19:27] <danimal_garage> so it's always going to overshoot your target?
[22:19:30] <alex_joni> danimal_garage: obviously your hole needs to have some clearance
[22:19:32] <alex_joni> sure
[22:19:45] <alex_joni> but it depends on the accel of the spindle
[22:19:52] <archivist_emc> you need swarf space as well
[22:20:01] <danimal_garage> my accel is pretty good, the decel is the issue
[22:20:07] <alex_joni> archivist_emc: unless you're using a non-cutting threading tool
[22:20:17] <alex_joni> danimal_garage: breaking resistor ;)
[22:20:18] <archivist_emc> true
[22:20:30] <danimal_garage> yea, i was waiting for that alex_joni
[22:20:50] <archivist_emc> I said breaking R the other day too :)
[22:21:02] <danimal_garage> lol yea i figured you were gunna say it
[22:21:03] <alex_joni> either that or brake
[22:21:16] <alex_joni> as in mechanical brake on the spindle
[22:21:38] <danimal_garage> yea, i think i'm going to wire a seperate air selanoid for the brake piston
[22:21:46] <danimal_garage> so i can control the brake with emc
[22:22:26] <alex_joni> although, thinking of it, I'm not sure how you can command the brake in the threading cycle
[22:22:36] <archivist_emc> I think a break R or dc inject will be a bit more consistent than mechanical
[22:22:47] <alex_joni> except maybe with some classicladder that watches the spindle speed
[22:22:56] <archivist_emc> and the drive deals with it then
[22:23:55] <danimal_garage> are brake R's specific for the drive, or are they somewhat generic?
[22:24:59] <andypugh> danimal: I thought you had dc-injection now?
[22:25:19] <danimal_garage> i do
[22:25:35] <andypugh> It should stop pretty quickly then
[22:25:37] <danimal_garage> but it doesnt stop it dead right away
[22:26:11] <danimal_garage> i gotta play with it some, seems like it coasts for a bit before the brake kicks in
[22:26:25] <andypugh> Is the decel time still high?
[22:26:40] <danimal_garage> the manual doesnt say anything other than how to use it
[22:26:52] <danimal_garage> somewhat, but not too bad
[22:27:38] <danimal_garage> too high for rigid tapping, at least rigid tapping at any sort of rpm
[22:29:34] <andypugh> Even slow has to be better than by hand
[22:29:42] <danimal_garage> i have to tap millions of the same hole
[22:29:54] <danimal_garage> it needs to be somewhat efficient
[22:30:01] <andypugh> Though it might "plug" and so be much quicker than stopping
[22:31:59] <danimal_garage> they're all thru holes in aluminum, 5mm threads, so not too bad of holes, but i need to do them FAST
[22:32:45] <danimal_garage> i'm going to build a dedicated machine for doing them with a servo spindle, but i'm not there yet
[22:32:46] <andypugh> If they are through-holes, does it matter?
[22:33:21] <danimal_garage> to a point, obviously the tap only has so much travel
[22:33:51] <danimal_garage> a 6 second decel isnt going to work, i'll run out of tap
[22:34:05] <archivist_emc> you can get nut taps that can go very deep
[22:34:15] <andypugh> Heck yes.
[22:34:21] <archivist_emc> 6 sec is slow
[22:34:27] <andypugh> What spindle power?
[22:34:30] <danimal_garage> 3hp
[22:34:32] <archivist_emc> dont go so fast
[22:34:44] <danimal_garage> tap nuts when you go deep?
[22:34:58] <andypugh> Something odd there. 6 secs is an age
[22:35:12] <danimal_garage> for 4000rpm's?
[22:35:13] <alex_joni> * alex_joni agrees
[22:35:15] <archivist_emc> the shaft is long and thin to carry the nuts
[22:35:32] <danimal_garage> lmao
[22:35:56] <archivist_emc> an old technology :)
[22:36:07] <danimal_garage> yea, i guess i'm 13 years old sometimes
[22:36:55] <danimal_garage> i'd like to tap with at least 1krpm's
[22:37:59] <andypugh> Your spindle should stop faster than it starts.
[22:38:30] <andypugh> Mine stops quick enough to unscrew the collet nut. (a bit, if it's loose)
[22:39:48] <danimal_garage> i have probably 75lbs of rotating mass
[22:40:08] <danimal_garage> maybe more
[22:40:51] <andypugh> OK, that's a fair bit, though I would have thought it is mainly quite small diameter?
[22:41:01] <danimal_garage> i cant imagine a shizuoka spindle being too light, and the vari drive assembly weighs a bit
[22:41:31] <danimal_garage> vari drive pulleys are probably about 8" in dia
[22:41:45] <andypugh> Aren't they also totally superflous?
[22:41:57] <archivist_emc> then you have to dissipate the energy in stopping or put in force to stop
[22:43:16] <archivist_emc> break too fast without a breaking R and the back emf causes the drive to drop out and coast
[22:43:39] <danimal_garage> andy, the vari drive=superfluous?
[22:44:40] <danimal_garage> archivist: i'll look into finding a braking resistor.
[22:45:16] <andypugh> Aye, if you have a VFD you can ditch the mechanical version
[22:47:10] <danimal_garage> yea, i'm planning on that eventually
[22:47:24] <danimal_garage> it'll quiet it down some as well
[22:47:30] <danimal_garage> i like quiet :)
[22:48:01] <andypugh> Though it hurts to remove and discard perfectly good, well-made parts
[22:49:43] <danimal_garage> crap, it says i need a brake unit with the resistor
[22:53:27] <andypugh> Out of interest, is reversing the spindle as slow as stopping it?
[22:55:07] <danimal_garage> slower, since you have to add the accel and decell time together
[22:56:25] <andypugh> I wasn't meaning in principle, I was meaning in practice....
[22:57:53] <danimal_garage> lol
[22:58:05] <danimal_garage> sorry
[22:58:05] <toastydeath> dunno on a homebuilt but the motors on the machines I use go into reverse to stop the spindle
[22:58:15] <toastydeath> load goes up to 150%
[22:59:10] <toastydeath> not real reverse, but they are driven to stop the spindle
[23:00:03] <andypugh> I have never tried it, but I wonder what happens if you type M3S1000 in MDI, then M4?
[23:00:25] <toastydeath> on an emc machine or fanuc
[23:00:34] <andypugh> emc
[23:00:51] <andypugh> I think it might also be drive-related
[23:02:16] <andypugh> but plug-reversing a 3-phase motor gives you a very quick reverse...
[23:03:22] <danimal_garage> i found a braking unit for my drive for $40 on ebay
[23:04:23] <danimal_garage> might just buy that and a resistor and call it a day
[23:04:34] <danimal_garage> says braking will be up to 100%
[23:04:55] <andypugh> Sounds like the best long-term solution if you are doing millions of reverses
[23:05:03] <danimal_garage> yea
[23:05:32] <danimal_garage> it'll cost me more than $40 in time just to hook up the air selanoid for the mechanical brake
[23:05:58] <danimal_garage> now i gotta find a reistor
[23:06:22] <andypugh> Electric fire?
[23:07:06] <danimal_garage> ?
[23:07:11] <andypugh> a bank of halogen spot lights would look cool
[23:07:18] <danimal_garage> lol
[23:08:04] <andypugh> Seriously, what's the spec? I think a few electric fire bars would work, and be far cheaper than an industrial resistor bank
[23:08:32] <danimal_garage> 5 ohm, 300 watts, a bank of 4
[23:10:29] <andypugh> http://cgi.ebay.co.uk/2-bar-electric-fire-heater_W0QQitemZ320471198168
[23:14:47] <danimal_garage> ugh, mitsubishi has the ohm sign in the part number for the resistor
[23:14:53] <danimal_garage> idiots
[23:15:43] <danimal_garage> lol i'm not putting a heater on my machine!
[23:17:19] <danimal_garage> gets hot enough in here in the summer :)
[23:17:27] <andypugh> But the standard heater elements, in a box, might be cheaper than a resistor bank
[23:18:40] <archivist_emc> danimal_garage, resistor is identical to a heater at heat generation for x power
[23:19:48] <archivist_emc> a heater is a resistor that withstands higher temperatures
[23:21:19] <danimal_garage> yea, but if i can find it, i'd rather just get the right resistors
[23:26:56] <eric_unterhausen> Haas uses stove elements. I wonder what resistance they have
[23:27:59] <andypugh> 1kW @ 240v...
[23:28:50] <danimal_garage> haha they do?
[23:29:07] <eric_unterhausen> yeah, I was surprised they didn't hide that fact a little better
[23:29:16] <eric_unterhausen> it's in a cage on the top of our machine
[23:29:29] <danimal_garage> like stove burners???
[23:29:48] <eric_unterhausen> yeah
[23:29:58] <danimal_garage> i'm not too suprised, haas isnt exactly a cadillac
[23:30:08] <eric_unterhausen> it's a good idea really
[23:30:19] <eric_unterhausen> why spend $100 on something when you could spend $5
[23:30:28] <danimal_garage> yea
[23:30:47] <danimal_garage> i guess i can go to home depot with an ohm meter lol
[23:31:30] <danimal_garage> actually i have a burner here
[23:33:40] <danimal_garage> 15 ohms
[23:34:53] <eric_unterhausen> parallel them up and you're done
[23:35:05] <danimal_garage> yea,
[23:35:23] <danimal_garage> i just bought the braking unit on ebay
[23:35:55] <danimal_garage> so once that goes in, i'll go get some stove burners lol
[23:36:53] <danimal_garage> my mill is getting to be pretty bitchin now
[23:37:06] <danimal_garage> :)
[23:38:55] <danimal_garage> it'll have 100% braking torque with the braking unit
[23:47:55] <archivist_emc> log a line before the cron job
[23:48:11] <archivist_emc> oops wrong chan
[23:50:53] <andypugh> Need one of these for my R1
[23:50:55] <andypugh> http://www.classicbike.biz/Triumph/A_Link/1960s/66Sno-Go.pdf
[23:57:03] <lilalinux> lilalinux is now known as lilalinux_away