#emc | Logs for 2009-06-25

[00:00:00] <jimbo655> Is there any reason to have a seperate ENA pin for each of the servo amps from EMC
[00:17:47] <jtr_> jimbo655: IIRC, the ENA outputs all come on at the same time, so there doesn't seem to be much point to using more than one.
[00:18:32] <SWPadnos> the motion controller turns on all of its enable outputs at the same time
[00:19:05] <SWPadnos> in HAL, you can take one of those outputs and connect it to multiple physical outputs
[00:19:20] <SWPadnos> if for some reason they should be separated
[00:19:57] <SWPadnos> otherwise, you can connect them together - EMC dosen't disable some motors while running others, since they still have to hold position if they're not moving
[00:56:24] <jimbo655> SWPadnis: thanks.
[00:56:33] <jimbo655> SWpadnos
[02:03:49] <skunkworks> a 10ft break sure make bending aluminum flashing easy.
[02:05:42] <skunkworks> brake
[02:08:13] <cradek> anyone have a 3.5" socket I can borrow?
[02:08:23] <skunkworks> yikes
[02:08:34] <skunkworks> I don't think so.
[02:09:11] <skunkworks> is it for the wheels on your formula 1 car?
[02:09:20] <jimbo655> Thats one hell of a nut your trying to crack :)
[02:11:25] <cradek> bus wheel
[02:11:47] <skunkworks> for the bearing preload?
[02:12:13] <cradek> yeah I need to replace the seal behind the bearings on one side - all the oil poured out
[02:12:29] <skunkworks> is it really rusty?
[02:12:36] <cradek> I don't know what I'm doing, but clearly a 3.5" socket is the next tool I need
[02:12:41] <skunkworks> chisle and hammer?
[02:12:58] <cradek> the rusty part is already done, this part was bathed in oil until recently and is nice and clean
[02:13:16] <cradek> I don't know how tight it is - nothing I have can turn it at all - I'll look for a socket tomorrow.
[02:14:32] <skunkworks> wonder if sears has anything that big. I know the import 3/4 drive sets don;t go that big
[02:16:39] <skunkworks> http://cgi.ebay.com/ebaymotors/Proto-3-1-2-Aluminum-Alloy-Axle-Bearing-Nut-Socket_W0QQcmdZViewItemQQ_trkparmsZ65Q3a15Q7c66Q3a2Q7c39Q3a1Q7c240Q3a1318Q7c301Q3a1Q7c293Q3a1Q7c294Q3a50QQ_trksidZp3286Q2ec0Q2em14QQhashZitem4a9893d747QQitemZ320387405639QQptZMotorsQ5fAutomotiveQ5fTools
[02:17:07] <Jymmm> pipe wrench
[02:18:06] <cradek> Jymmm: not exposed, unfortunately
[02:18:45] <cradek> skunkworks: you rock
[02:19:21] <Jymmm> it's aluminum
[02:19:49] <cradek> bizarre, I wonder how tight this is
[02:20:23] <skunkworks> it is the bearing preload right? it was held with a keeper?
[02:20:29] <skunkworks> of some sort.
[02:21:22] <cradek> there are two nuts with a locker that bends over the inner one, and has a key to keep it from turning. then there's a second nut that tightens on top of the locker.
[02:21:50] <cradek> dang, I should have taken a picture.
[02:22:24] <steves_logging> steves_logging is now known as steve_stallings
[02:23:02] <steve_stallings> wheel bearing nuts should not be that tight, ignoring the possibility that they may be rusted in place
[02:23:17] <cradek> there is no rust inside
[02:23:26] <skunkworks> ah - so it could be tight. (second nut could be quite tight)
[02:23:32] <steve_stallings> if rusted, you might need something like this http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&_rdc=1&item=370209275275
[02:23:39] <Jymmm> http://www.wildhorses4x4.com/images/uploads/7080_1749_large.jpg
[02:23:47] <skunkworks> you could try a chisle - no really.
[02:24:12] <cradek> seems like the top one could be arbitrarily tight, since it just locks the inner one in place
[02:24:25] <steve_stallings> the nuts are setting the preload on a bearing and so should not be that tight
[02:24:43] <skunkworks> steve_stallings
[02:24:45] <skunkworks> heh
[02:24:58] <skunkworks> steve_stallings: it is double-nutted.
[02:25:08] <cradek> dang, I need a picture. the two nuts lock together, involving a keyed washer, to keep both from rotating and changing the preload
[02:25:16] <steve_stallings> the second nut doesn't usually need to be that tight either because it is held at a given rotation by either a cotter pin or a bent tab on a setting ring
[02:26:00] <cradek> sounds like I should just make a socket to try, before doing anything drastic
[02:26:32] <steve_stallings> the fun part will probably be getting the seals out and back in without damaging them
[02:26:35] <Jymmm> http://www.4x4wire.com/rover/maintenance/front_axle/wheel_bearings/locknut.jpg
[02:27:24] <cradek> steve_stallings: yeah I'm a little worried about that, but with care I bet I can do it
[02:29:05] <steve_stallings> given that I have not notice you being a member of the "bigger hammer" brigade, you are probably ok 8-)
[02:29:15] <cradek> heh
[02:30:14] <cradek> http://www.meritorhvs.com/MeritorHVS_Images/product/PreSet-by-ArvinMeritor-bus-foundation-brakes.gif
[02:30:20] <cradek> this is *something* like the design I have
[02:30:41] <cradek> two nuts on the front of the front bearing
[02:30:59] <cradek> axle pokes through and bolts to the front
[02:31:36] <cradek> brakes bolt on the back of the hub/wheel somehow - I haven't got it that far apart yet
[02:31:43] <cradek> brake disc, I mean
[02:33:13] <steve_stallings> those tires and rims will be heavy, think about not jacking things way up in the air, and have some help or a gizmo for moving the tire off the hub
[02:33:53] <cradek> yeah unfortunately to get it on my (biggest) jack stands, it's almost 2" off the ground. I will put something under it before I hope to pull it off.
[02:34:47] <cradek> a car wheel is 80? lb so these may well be 250?
[02:34:54] <cradek> no idea, but yeah, heavy
[02:38:00] <jmkasunich> that aluminum socket on ebay isn't very expensive, even at the buy-it-now price
[02:38:10] <cradek> yeah, $30ish
[02:38:23] <jmkasunich> the actual "goes on the nut" part will be plenty strong, even in aluminum
[02:38:35] <jmkasunich> the square hole for the drive is the weak link
[02:38:50] <cradek> I almost bought it, but I can make one, and have it tomorrow, for $0
[02:39:04] <cradek> I like Jymmm's idea of using a pipe wrench
[02:39:05] <jmkasunich> you have a chunk of metal that big?
[02:39:12] <cradek> I could not make the square
[02:39:25] <jmkasunich> you don't need the square ;-)
[02:39:25] <cradek> oh I'm sure I do :-)
[02:39:32] <cradek> nope, screw the square
[02:39:50] <jmkasunich> round OD, hex ID, cross drill for a piece of 1/2" rod
[02:40:10] <cradek> if I make it, I can make the OD exactly right, to fit inside the hub
[02:40:25] <cradek> then it will be almost impossible for it to do anything but turn the nut
[02:41:14] <steve_stallings> good idea!
[02:41:20] <cradek> mcmaster has them for only $200
[02:41:42] <jmkasunich> heh
[02:42:42] <cradek> I also need 1-1/8 and 1-1/4 impact sockets, but that ought to be easy to find even locally (I hope)
[02:42:56] <jmkasunich> even sears might have those
[02:43:09] <cradek> my little set only goes to 1"
[02:43:38] <jmkasunich> when you make the big socket, you might consider putting a 1-1/4" male hex on it (where the square hole would normally go)
[02:46:12] <cradek> for a lug nut wrench?
[02:46:26] <jmkasunich> for the 1-1/4" socket
[02:46:39] <jmkasunich> that way you can use a regular ratchet, torque wrench, whatever
[02:46:46] <cradek> that's true
[02:47:14] <cradek> I'm hoping that marking the nut will let me get the preload reset correctly - I have no idea what it should be
[02:56:55] <steve_stallings> with the wheel off the ground, tighten until there is drag, the back off one locking tab increment, or so he says based on light duty stuff......
[02:58:16] <cradek> ok
[03:00:52] <steve_stallings> can you find a shop manual on your chassis? a hundred bucks now may save you much more later
[03:01:34] <cradek> I have a service book, but I think it's engine only
[03:02:23] <steve_stallings> grin.... the coach mfg usually sells the chassis manual, then tells you to go buy the engine and transmission manual elsewhere
[03:02:48] <cradek> grr :-)
[03:06:30] <cradek> thanks for the advice, everyone
[03:06:45] <cradek> so many people here are "good at stuff"
[03:10:11] <John_F_> jimbo655: looks like I just need +/- 15V and +5
[03:25:29] <jtr_> cradek: That's not a left-hand thread, is it?
[03:25:46] <cradek> jtr_: nope, I checked
[03:28:27] <jtr_> figured you did, but I had to ask. I've seen that kind of arrangement before (never that big), but don't recall how they locked the outside nut, unless it was a tab that bent up.
[03:28:41] <jtr_> jtr_ is now known as jtr
[03:29:09] <cradek> I did not see any lock for the outside one, except that it might be very tight against the locking ring and inner nut
[03:34:00] <steve_stallings> sometimes there is a tabbed washer between the two nuts, the washer will be keyed to the axel, then there are tabs bent down on the first nut and up on the second
[03:34:29] <cradek> steve_stallings: that's exactly what it is, but I didn't see a bend up to the top one - maybe I just missed it.
[03:35:14] <steve_stallings> or the last mechanic didn't do it 8-)
[03:36:10] <stustev> In a past life I worked as a tractor mechanic (over the road and farm). Tighten to no play and back off one flat. I remember the tab only on the outside nut.
[03:36:12] <cradek> on this thing, I think the last mechanic is almost always the factory...
[03:39:04] <cradek> are the bearings going to pull right out, or is that an ordeal?
[03:39:47] <stustev> they will slip out without much problem
[03:40:23] <stustev> this is easy and simple but VERY heavy and awkward
[03:40:30] <cradek> oh good. then I probably have it made.
[03:42:35] <stustev> without a jack to handle this you will need three men and a boy to take it off and put it back on
[03:42:43] <stustev> the put back on is more critical
[03:42:57] <stustev> the seal is already damaged or you would not be removing it
[03:43:13] <stustev> it is easy to damage the seal on reassembly
[03:43:47] <jtr> good luck with it. I'm out for the night.
[03:44:03] <cradek> I think I will take the wheel off the hub (?) to do it
[03:44:12] <cradek> (I don't know the terminology)
[03:44:21] <stustev> good idea
[03:44:40] <stustev> this will then become a two man operation
[03:44:42] <cradek> without the wheel I don't think it will be terribly heavy - less than 100 lb
[03:45:10] <cradek> maybe much less - I'm not sure how much the casting is hollow in the back
[03:45:43] <cradek> I hope it comes off the brake disk easily - I guess that stays on - not sure how that works.
[03:46:05] <stustev> If you have some hold down straps you can use them as a sling to assist in lifting
[03:46:50] <stustev> you may have to adjust (loosen) the brakes to allow the hub to slip off the shoes
[03:47:01] <cradek> it's disk
[03:47:22] <cradek> lugs seem to bolt the disk to the back of the hub
[03:47:36] <stustev> then I have no idea - you will have to see just what is there
[03:48:07] <cradek> yeah how hard can it be? :-)
[03:48:09] <cradek> famous last words
[03:48:29] <steve_stallings> are you sure the rears are disk?
[03:48:46] <cradek> yes it's very plain that they are disk
[03:49:01] <steve_stallings> ok, rather modern chassis
[03:49:06] <stustev> when you remove the caliper have some wire or rope to suspend it without stressing the brake hose
[03:49:43] <cradek> I'm hoping to leave the caliper and disk in place by unbolting the hub/disk interface - we'll see
[03:50:05] <cradek> the caliper looks _quite_ rusted in place
[03:50:22] <stustev> probably not rusted in place
[03:50:44] <cradek> I will take pictures tomorrow - trying to describe it is no fun
[03:50:46] <stustev> probably a couple of bolts is all that holds the caliper on
[03:52:11] <steve_stallings> you will need to depress the pistons a bit to slide the caliper off the disk, the block them so they do not ooze back out
[03:52:19] <steve_stallings> then
[04:00:59] <cradek> goodnight folks, thanks again
[04:01:13] <cradek> I'll take pictures and keep you informed!
[04:04:43] <steve_stallings> good luck!
[04:09:27] <fgleich> I'm getting an error message when I start up emc
[04:10:09] <fgleich> it's something about can;t read varval
[04:10:17] <fgleich> can't read varval
[04:28:00] <Jymmm> MAJIDE!!!!!
[05:00:37] <steve_stallings> steve_stallings is now known as steves_logging
[11:43:15] <archivist> cradek, 260434821898 some hardinge tooling your side of the pond
[13:30:39] <cradek> archivist: thanks
[13:31:09] <archivist> dunno if it fits yours
[13:31:33] <archivist> whats this bus I read in the logs
[13:41:56] <cradek> our homemade RV based on an old bus
[13:42:37] <archivist> I have a truck at home :)
[15:01:15] <BJT-Laptop_> BJT-Laptop_ is now known as BJT-Laptop
[15:19:45] <archivist> hmm denim purse...that makes mine somewhat rag trade
[16:15:48] <alSMT> cradek: you around?
[16:16:18] <cradek> off and on (network troubles)
[16:17:06] <alSMT> I have made spindle nut wrenches using heavy wall tubing indexed on three sides
[16:17:36] <alSMT> you need the hole hex
[16:17:51] <alSMT> "dont"
[16:18:04] <cradek> good idea, thanks
[16:18:24] <alSMT> large pipe wrench will turn it
[16:19:52] <alSMT> i have used a oil filter wrench too but if its real tight no good ( all depends on filter wrench type )
[16:20:20] <cradek> this one is inside the hub, so it really needs a socket shape - pretty thin wall too
[16:22:09] <alSMT> large tube at the max dia mill three sides inside
[16:26:01] <alSMT> it can be pipe if you find one close
[16:26:59] <alSMT> many butchers have used a coal chisel to turn the nut
[16:30:48] <alSMT> you only mill three sides of the hex out and you get the socket shape leaving .1 to .15 to catch the nut "socket shape - pretty thin wall too"
[16:39:41] <alSMT> cradek: do you understand what I said about the max dia of the wheel hub hole for pipe, then mill the flats for the hex on three sides inside?
[17:14:00] <chog> chog is now known as chog_afk
[17:16:53] <alSMT> cradek__: ^^^
[17:21:22] <skunkworks_> logger_emc: bookmark
[17:21:22] <skunkworks_> Just this once .. here's the log: http://www.linuxcnc.org/irc/irc.freenode.net:6667/emc/2009-06-25.txt
[17:21:31] <skunkworks_> hmm - that is interesting
[17:25:35] <alSMT> bbl
[17:27:35] <skunkworks_> wow
[17:45:56] <skunkworks_> http://www.youtube.com/watch?v=NzY-OqckqpI&feature=channel
[17:46:07] <skunkworks_> cool
[17:46:14] <skunkworks_> (mach)
[17:46:45] <skunkworks_> sort of looks like he is threading using the spindle as a rotory axis.
[17:48:32] <skunkworks_> maybe not - I don't know
[17:51:46] <SWPadnos> no, I don't think so
[17:52:06] <SWPadnos> he does switch between spindle mode and axis mode though, which is cool
[18:00:37] <skunkworks_> it just seems odd that the spindle stopped between each pass
[18:03:27] <SWPadnos> I didn't notice that
[18:03:55] <SWPadnos> it did stop between the turning and milling cycles (doing the flats)
[18:06:05] <skunkworks_> KimK: !
[18:06:48] <KimK> Hi, what's going on?
[18:07:16] <skunkworks_> Not much. How is your mesa project coming?
[18:09:19] <KimK> Got the axes done, although not allowing full speed yet. Now working on spindle speed, tool changer, etc.
[18:12:38] <KimK> How's your project, I mean how are your projects, LOL?
[18:14:03] <KimK> And any news on cradek's bus since last night?
[18:22:33] <skunkworks_> I have only been really working on the garage. Someone let me borrow a 10ft metal brake to do my flashing. works great.
[18:23:02] <skunkworks_> should be siding soon. Garage doors are also ordered and should be in in a few weeks.
[18:25:13] <KimK> How tall are the doors? I'll bet nice and tall.
[18:26:43] <skunkworks_> only 8ft :)
[18:27:46] <skunkworks_> a little farther than this http://www.electronicsam.com/images/house/enclosed.JPG
[18:51:59] <KimK> OK, thanks. I forgot to tell you that Dave has got a mill with those big Gettys DC motors and SCR drives that might be another test candidate for your new IGBT(?) drives when they're ready. Let me know what you think.
[18:55:54] <KimK> Hi cradek what news on your bus? I was reading the log last night, very interesting, a big project. Make your socket yet?
[18:55:59] <archivist> for screw cutting from a shoulder, how much lead is needed
[18:57:01] <KimK> Just one revolution, if you cut away from the shoulder? (guessing)
[18:57:44] <SWPadnos> depends on spindle speed and Z-axis accel
[18:58:25] <archivist> the lathe I just went to see turns the other way tools behind
[18:59:11] <archivist> dunno if I should get it, or fight for hardinge
[18:59:17] <KimK> SWPadnos: Yeah, that sounds right. So slow down and get one-lost-thread best case?
[19:00:08] <archivist> an older one of these http://www.denford.com/Novaturn.html
[19:00:12] <SWPadnos> KimK, I don't know what the practical answer is, only the theoretical/technical one :)
[19:00:47] <KimK> Well, you're doing better than me, I'm just guessing, LOL
[19:00:50] <archivist> pc missing so a good upgrade candidate
[19:01:49] <SWPadnos> archivist, the only issue I can think of is whether there's a display option in AXIS to match a lathe with tools in the back
[19:02:11] <jepler> there's a hack somewhere to do it
[19:02:14] <archivist> heh then one of use whould have one :(
[19:02:27] <SWPadnos> G2/G3 arcs also are reversed from a normal lathe, which means they're correct compared to a mill
[19:02:52] <SWPadnos> (in the preview anyway)
[19:03:01] <jepler> http://mid.gmane.org/20080916131626.GB3375@unpythonic.net
[19:03:06] <archivist> has the tool changer and seem very little wear
[19:03:39] <SWPadnos> jepler, does that also flip the profile display?
[19:03:52] <SWPadnos> was that already an option?
[19:04:16] <jepler> SWPadnos: yes, it flips it. no, it wasn't an option
[19:04:49] <KimK> archivist: hauling home a lathe is a big project (ask SWP!) and you're likely to live with it for a while, so make sure it's one you want. Then again, a lathe in the hand is worth two at HGR, or something like that.
[19:06:26] <archivist> KimK, there are a few here that may go home when we close....choices
[19:07:09] <archivist> but I know a few who would want 220436113495
[19:07:24] <KimK> Ah, a closing. Sorry to hear that.
[19:07:39] <KimK> What city?
[19:07:44] <archivist> UK
[19:08:05] <archivist> Burton is home
[19:08:32] <KimK> OK. How many people put out of work?
[19:09:22] <archivist> one me, boss intends to work from home
[19:10:42] <archivist> or do I beg this http://www.archivist.info/cnc/works2008/P1010226.JPG and add emc
[19:11:04] <KimK> Oh, well, OK then.
[19:11:42] <archivist> as I dont know if a swiss type sliding head has been tackled yet
[19:15:39] <BJT-Laptop> * BJT-Laptop heads out to play in the sand
[19:15:42] <KimK> But that's a full mechanical now, right? No place to attach servos or steppers?
[19:17:52] <KimK> I don't see any tooling on it either, so it's not currently set up for a specific product? (As in salable product?)
[19:18:19] <archivist> KimK, yup
[19:18:48] <roh> archivist looks archaic.. how old is it? 1950s?
[19:19:34] <archivist> the tooling works against springs so simple push needed
[19:19:51] <archivist> 50's 60's maybe yes
[19:21:08] <PCW> Well we can't have archaic an eat it too...
[19:21:31] <archivist> sure we can :)
[19:21:33] <jepler> grooooaaaannnn
[19:24:12] <KimK> OK, just my opinion, but unless you have a specific small part that is in high demand, I'd go CNC. But the mechanical can run *huge* quantities fast, and with little effort, so if you're selling a small turned item (standoffs?) that sells, say in bags of 100, go with the mechanical (and their customer list!)
[19:25:16] <archivist> cnc on top of those mechanics, means fast millions and no set up cost
[19:25:56] <KimK> Well, no setup cost the *second* time, anyway, LOL
[19:26:22] <archivist> job setup cost makes them uneconomic as they were, EMC could make one cheap and useful
[19:27:50] <KimK> Well, it would be interesting. If you want to try it, I guess you're in the right place (here).
[19:32:29] <KimK> It should be operable, but both the programming and display might be "unconventional". For example, you might have several tools in use at once.
[19:33:02] <KimK> So the T number will probably not help you.
[19:33:38] <archivist> nope as one would be using another axis
[19:33:56] <KimK> But with 9 axes (sorry, joints) it should be doable.
[19:34:55] <SWPadnos> G-code can only do coordinated motion
[19:35:00] <archivist> I can see need for 6 with 3 left for live tooling/whatever
[19:35:13] <SWPadnos> so if you would want to move different tools around independently, it would be a challenge
[19:35:56] <archivist> mostly one would use another slide as just another tool
[19:36:23] <archivist> so one or two axes at a time
[19:36:59] <KimK> Yes, they might move independently (slower, but sometimes necessary) or together (faster, when possible).
[19:37:28] <SWPadnos> I'm saying that independent motion is not a part of G-code
[19:37:35] <SWPadnos> so that would be a challenge to implement
[19:37:38] <KimK> Sure it is
[19:37:43] <archivist> likely different tool forms in each slide
[19:37:52] <SWPadnos> independent but not simultaneous is of course possible
[19:40:43] <KimK> Well, it would be odd to say G1 X2 V3 or something, but OK.
[19:41:18] <KimK> Can the A,B,C um, joints be non-rotary?
[19:41:38] <KimK> (Might need more linear axes)
[19:41:42] <SWPadnos> in theory, yes
[19:41:46] <SWPadnos> in practica, I don't think so
[19:41:51] <SWPadnos> practice
[19:42:19] <SWPadnos> there are joint type settings in the ini file (linear vs. rotary), but the axes ABC (in world coordinates) are only rotary
[19:43:04] <KimK> If it's just the display, might have to accept that the display just won't work.
[19:43:14] <SWPadnos> no, that's part of G-code
[19:44:18] <KimK> But if you didn't need "world translation", just 3 more linear joints?
[19:44:30] <SWPadnos> no
[19:44:36] <SWPadnos> G-code operates in world mode only
[19:44:43] <SWPadnos> kinematics translate between that and joints
[19:45:18] <SWPadnos> if you have an ABC word plus any other word (XYZUVW), then you will get an inverse-time move such that all joints finish motion at the same time
[19:45:38] <SWPadnos> axes actually, not joints (since we're in world coordinates :) )
[19:47:22] <KimK> In a G1 move? I thought that happened (coordinated motion) with any two axes, i.e. X & Y ?
[19:48:31] <SWPadnos> G1X1Y1Z1A1B1C1U1V1W1 is valid (assuming a feed rate has been previously programmed)
[19:49:08] <SWPadnos> and in that case, there is a specifig way the time is calculated, which I don't remember exactly
[19:49:13] <SWPadnos> (but it's in the G-code manual)
[19:49:50] <KimK> Oh, I thought you meant (earlier) that unless you mentioned A, B, or C, you would not get coordinated motion.
[19:49:52] <SWPadnos> something like taking the hypoteneuse of XYZ and using that as the distance to use when calculating time based on F
[19:49:56] <SWPadnos> no
[19:50:18] <SWPadnos> it's just the amount of time it takes that is calculated differently with combined rotary/linear moves
[19:52:48] <KimK> OK. But back to archivist, he can only count on 6 (independent, unrelated) joints from EMC2, right?
[19:52:57] <SWPadnos> no
[19:53:12] <SWPadnos> if you do separate moves, you can control any axis
[19:53:13] <KimK> what, only 3. Yikes.
[19:53:19] <SWPadnos> 9
[19:53:42] <SWPadnos> if you do a sequence like A1 / X3 / U-1 ..., you can do whatever you want
[19:54:09] <SWPadnos> you can move all axes at the same time, and they will all take the same amount of time to make their moves
[19:54:28] <SWPadnos> but, they will not have independent speeds in that mode
[19:54:44] <SWPadnos> so they're not truly being controlled independently
[19:55:12] <archivist> this type of lathe thats ok as the cut is by feeding the stock out the collet
[19:55:33] <SWPadnos> oh, that you can do all day :)
[19:55:46] <SWPadnos> KimK was talking about controlling the tool positions also
[19:56:00] <SWPadnos> which would be possible as a setup step in HAL - no G-code required
[19:56:01] <archivist> I dont see any real problems,
[19:56:10] <KimK> Well, I think that's OK if a multiple axis move all finishes together. archivist ?
[19:57:08] <archivist> only one can be done at a time as the tool holders are next to the collet
[19:58:06] <KimK> Oh, well, if you never have a situation where that comes up, then never mind, LOL
[19:58:17] <archivist> but for full possibilities watch a citizen sliding head video
[19:58:50] <archivist> that has a back head and live tooling
[19:59:19] <archivist> and a price to match
[20:01:22] <archivist> http://www.youtube.com/watch?v=7Z06Kg4PhB8
[20:03:25] <archivist> hmm I WANT http://www.youtube.com/watch?v=weJQS0WkqdY&NR=1
[20:07:06] <Jymmm> 4000 Volt motor
[20:08:55] <Jymmm> shreds one car every 10 seconds
[20:10:17] <archivist> http://www.youtube.com/watch?v=2HM2x0MosOs&feature=related
[20:15:36] <Jymmm> auto piloted manless parachute
[20:22:26] <Jymmm> Heh, and engraves too!
[20:23:02] <Jymmm> The sliding lathe head was pretty cool, never saw a lathe thread before
[20:23:09] <archivist> seen one of the citizens in the flesh at a show, very nice toys
[20:24:09] <Jymmm> You need a CNC just for the head alone.
[20:25:48] <archivist> hmm has rayh done his HXL-S, how big are they
[20:30:04] <KimK> I'm back to working on the init string for classicladder, and if I put the init string in up to and including numPhysOuputs=200 it works fine (emc2 starts up); but if I put the whole init string in, it errors out (emc2 won't start). Any suggestions? The original problem I'm trying to solve is that some of the upper value I'm using are not showing up in the symbol table.
[20:33:05] <KimK> I'll go set up to try the init string with all default values, brb.
[20:39:27] <KimK> Interesting, all default values gives "classicladder_rt: Unknown parameter `numPhysOuputs'" in tail | dmesg
[20:41:50] <KimK> back in a bit
[20:57:08] <KimK> Full-length init string with all-default-values doesn't work either.
[21:01:17] <SWPadnos> how long is the string?
[21:04:30] <SWPadnos> halcmd has a command length limit of 1024 characters
[21:04:39] <SWPadnos> or twice that maybe
[21:08:14] <KimK> Length as needed to list every item shown in the Integrator's Manual. Line length 259. I have a partial init string that works, with a line length of 160.
[21:14:02] <KimK> Another problem I'm having (when I go back to the init string that works) is that I'm trying to add a numerical value to classic ladder. This spindle drive always needs 0 to +10, but if I do M4, I get 0 to -10 and drive stays off. I'm trying to do an ABS value in CL.
[21:15:03] <KimK> But getting classicladder.0.S32out-00 does not exist
[21:28:38] <KimK> back in a bit
[21:37:47] <Goslowjimbo> Geo01005: where is the description of you're raw read and write to access the A/D converter?
[21:40:53] <Goslowjimbo> Sorry, capitalized. geo01005
[21:42:26] <geo01005> Goslowjimbo, I think the only docs I have on it are the comments in the comp file.
[21:42:54] <geo01005> I also wrote the hm2 spi section on the wiki, but I don't think that will help much.
[21:42:58] <Goslowjimbo> OK
[21:43:28] <geo01005> How is your project comming?
[22:03:23] <Goslowjimbo> Trying to do the programming. Just talked to pcw, jepler, and seb_k on emc_dev to get some help.
[22:03:48] <Goslowjimbo> pcw gave me a significant boost.
[22:04:21] <Goslowjimbo> Gonna go code. Bye
[22:05:04] <Goslowjimbo> Oh, and SWPadnos.
[22:05:19] <Goslowjimbo> really bye now.
[22:49:41] <SWPadnos_> SWPadnos_ is now known as SWPadnos
[22:50:15] <jimbo655> It looks like the original wiring of the limit limit switches was 110 volt. Probably had an interlock that shut down the servo motor. Should I try to retain this or just tie the limits into EMC2?
[22:51:37] <SWPadnos_> SWPadnos_ is now known as SWPadnos
[23:14:29] <Jymmm> Man, both Farrah Fawcett and Michael Jackson are dead
[23:14:39] <SWPadnos> ?
[23:14:43] <Jymmm> seriously
[23:14:54] <SWPadnos> I know she was battling cancer for a while
[23:15:03] <Jymmm> FF had cancer, MJ had a heart attack
[23:15:07] <SWPadnos> weird
[23:15:12] <SWPadnos> he's about my age
[23:15:16] <SWPadnos> was
[23:15:20] <Jymmm> 50
[23:15:24] <Jymmm> she was 62
[23:15:25] <Jymmm> http://www.examiner.com/x-14650-Entertainment-Examiner~y2009m6d25-Breaking-News-Farrah-Fawcett-has-died
[23:15:27] <SWPadnos> ok, older than me ;)
[23:15:47] <Jymmm> http://news.google.com/news/url?sa=t&ct2=us%2F0_0_s_1_0_t&usg=AFQjCNHiC6Z_oYxmU-n6GYEr9L7Xer2rcA&cid=1380173249&ei=AP9DSvicE4mC7QPLgtSkAQ&rt=SEARCH&vm=STANDARD&url=http%3A%2F%2Fwww.alternativehealthjournal.com%2Farticle%2Fmichael_jackson_dead_at_50%2F3629
[23:16:01] <SWPadnos> wow. and wikipedia is already updated
[23:18:33] <Jymmm> that's kinda creepy
[23:19:28] <Jymmm> SWPadnos: Imagine looking yourself up in wikipedia to find your obituary.
[23:19:34] <SWPadnos> yeah
[23:19:52] <SWPadnos> "the electronic account of my death is a bit prema- urnk"
[23:20:03] <Jymmm> rotf
[23:21:04] <Jymmm> SWPadnos: Oh, wanted to ask you if you know of any (electronic) way to measure the pressure that's placed againest the ballmount on my machine?
[23:21:12] <Jymmm> ballnut mount
[23:21:25] <SWPadnos> I think you'd have to attach a strain gauge somehow
[23:21:30] <SWPadnos> or several
[23:21:40] <Jymmm> Maybe even skew and asium too
[23:22:34] <SWPadnos> asium?
[23:23:26] <Jymmm> Dang, Ed McMahon died on the 23rd
[23:24:46] <Jymmm> azimuth
[23:25:45] <SWPadnos> so the idea is to see how the ballnut would like to move as the axis is driven towards or away from it?
[23:26:10] <Jymmm> SWPadnos: Well, we suspect that's the problem (ballnut mount), but instead of continuing the trail-and-error saga, make some actual tests to get some real numbers
[23:26:17] <SWPadnos> yep
[23:26:41] <SWPadnos> trouble is it's at the motor end, so I think it makes sense to measure there
[23:26:51] <SWPadnos> rather than at the slightly more accessible other end
[23:27:01] <Jymmm> what is at the motor end?
[23:27:12] <SWPadnos> the problem occurs when the gantry is closer to the motor end, IIRC
[23:27:18] <SWPadnos> X motor
[23:27:38] <Jymmm> oh, well it stalls about 1/3rd in, so not all tht close
[23:27:45] <Jymmm> s/tht/that/
[23:28:09] <Jymmm> In other words.... we have clearnace to play with 9(at least 5")
[23:28:42] <Jymmm> It's just a matter of figuring out HOW to measure it. I can always remove the top easily enough.
[23:29:14] <SWPadnos> I'm not so concerned about clearance, it's more that the motor has to float along with the bearing mount
[23:29:26] <SWPadnos> yeah, I was thinking about that - much easier to see if the MDF is gone
[23:29:45] <Jymmm> Why does the motor have to "float" ?
[23:30:15] <Jymmm> it's belt driven for one
[23:30:16] <SWPadnos> there are two kinds of measurements you can make
[23:30:24] <SWPadnos> hmmm, good point :)
[23:30:42] <SWPadnos> I wonder if that's a problem actually
[23:30:45] <Jymmm> But even if it wasn't, what do you mean by float here?
[23:30:49] <SWPadnos> if the bearings are shit, it could be
[23:31:00] <Jymmm> replaced the bearings already.
[23:31:04] <Jymmm> bbiab... foodage
[23:31:05] <SWPadnos> I know
[23:31:07] <SWPadnos> ok
[23:34:03] <Goslowjimbo> http://pastebin.com/m3f65fb18 trying to create a component, but getting error on non-existent line number.
[23:35:06] <SWPadnos> you're missing a close }
[23:35:28] <SWPadnos> and I think you may need a CR after the last line with stuff on it
[23:35:44] <Goslowjimbo> Doh. THanks
[23:36:03] <SWPadnos> sure
[23:42:25] <Goslowjimbo> Now I get warnings about rtapi and HAL functions undefined. Do I need a couple of include statements, or is this normal?
[23:42:49] <SWPadnos> if it's linker errors, then I think it's normal
[23:43:07] <SWPadnos> if it's compiler errors, then it's not normal
[23:44:26] <Goslowjimbo> http://pastebin.com/d501170e2
[23:44:45] <SWPadnos> yep, those are OK
[23:45:06] <Goslowjimbo> Thanks.
[23:45:18] <SWPadnos> sure
[23:52:50] <jimbo655> is it acceptable to just tie your limits into the IO ports on the computer or do I need a hard disconnect with the servo drive as well?
[23:56:59] <Jymmm> * Jymmm is back! RUN! RUN FOR YOUR LIVES! EEEEeeeeeeeek
[23:57:51] <Jymmm> SWPadnos: Ok man, so how can we measure any of this, and with what?