#emc | Logs for 2005-11-01

[21:19:17] <alex_joni> ok
[21:20:14] <rayh> You mentioned using some sort of scripting language as being useful.
[21:20:21] <rayh> how would you see that working.
[21:21:38] <alex_joni> not fully sure..
[21:21:54] <alex_joni> guess lots of that functionality might be the same in CL
[21:22:17] <rayh> HAL has and and or gates.
[21:22:20] <alex_joni> but using words, not pictures :)
[21:22:23] <alex_joni> right
[21:22:33] <alex_joni> but using them is a pita, if you ask me
[21:22:39] <rayh> so it would be possible to do the logic that we assign now to cl with these
[21:23:00] <rayh> Uh okay. Take your word for it.
[21:23:03] <alex_joni> probably.. but that would really be bad
[21:23:14] <alex_joni> lots of .hal configs
[21:23:35] <rayh> If this script language worked on the rt side it would take lots of time.
[21:23:46] <alex_joni> not rt
[21:23:49] <alex_joni> userspace
[21:24:07] <rayh> So it would set up logic that ran on the rt side"
[21:24:09] <rayh> ?
[21:24:17] <rayh> cant type.
[21:24:24] <alex_joni> it would set up logic that runs user-space
[21:24:34] <alex_joni> but can trigger RT events
[21:25:26] <rayh> This would be about the same then as bridgeportio now.
[21:28:31] <rayh> Except that a scripting language would be used to set the logic.
[21:39:33] <alex_joni> yes
[21:39:42] <alex_joni> and that you can change the scripts without restarting
[21:41:56] <rayh> You'd make a connector like iocontrol only it would have pins both ways without hard coded connections to emc or hal.
[21:42:14] <alex_joni> probably
[21:42:29] <alex_joni> something like that.. but thinking of it..
[21:42:31] <rayh> Then the user could assign tasks to them in user and rt space?
[21:42:35] <alex_joni> I think that iocontrol + CL is enough
[21:44:00] <alex_joni> hi anders
[21:44:12] <anonimasu> hello
[21:44:32] <anonimasu> what's up?
[21:44:43] <alex_joni> not much.. testing the new puppy in qemu
[21:44:49] <anonimasu> nice
[21:44:51] <anonimasu> I just got home
[21:44:58] <anonimasu> leaving for England tomorrow morning
[21:47:35] <anonimasu> wb
[21:47:55] <alex_joni_> ty
[21:48:04] <alex_joni_> dead
[21:48:04] <alex_joni_> :D
[21:48:11] <alex_joni_> alex_joni_ is now known as alex_joni
[21:48:28] <anonimasu> how much did you get?
[21:48:34] <alex_joni> what for?
[21:48:45] <alex_joni> an eternity in purgatory
[21:48:57] <Jacky^> hahah
[21:49:15] <Jacky^> anonimasu: tale alook http://digilander.libero.it/jackydgl0/pics/anmary.jpg
[21:49:21] <Jacky^> thats niceee :P
[21:50:19] <Jacky^> ciao domenique
[21:50:31] <Jacky^> domenique:/anna ??
[21:50:33] <Jacky^> :)
[21:52:19] <Jacky^> uhm
[21:52:54] <Jacky^> hope les will come this evening ..
[21:53:05] <alex_joni> give him a call
[21:53:09] <Jacky^> need some help
[21:53:33] <Jacky^> he seems away
[21:55:27] <anonimasu> :)
[21:56:44] <domenique> hello
[21:56:46] <domenique> sorry
[21:56:52] <domenique> yes i'm anna
[21:57:13] <Jacky^> * Jacky^ know..
[21:57:18] <Jacky^> hehehe
[22:16:10] <les_w> hi jacky
[22:16:15] <Jacky^> hi les_w
[22:16:17] <Jacky^> :)
[22:16:23] <anonimasu> hey les
[22:16:31] <les_w> have been a bit busy
[22:16:48] <les_w> people are coming about the latest invention in 9 days
[22:16:55] <les_w> have to get ready
[22:17:05] <Jacky^> :-)
[22:17:29] <Jacky^> good
[22:17:40] <alex_joni> still need to make smthg up?
[22:17:52] <Jacky^> les_w: got some surplus motor here
[22:18:35] <Jacky^> i'm not sure about what it can offer ..
[22:18:48] <Jacky^> my cousin have 2 of these motors
[22:19:06] <Jacky^> he will not use them, because he want to build a plasma cutter
[22:19:30] <Jacky^> but ive not specs, and not datasheet ..
[22:19:54] <Jacky^> i can just show a picture :/
[22:20:06] <les_w> just a sec jacky has a question
[22:20:10] <Jacky^> looks nice
[22:20:13] <Jacky^> ok
[22:20:33] <les_w> shoew me a picture
[22:20:36] <les_w> show
[22:21:04] <Jacky^> http://digilander.libero.it/jackydgl0/pics/lab2.jpg
[22:21:27] <les_w> looking
[22:21:39] <Jacky^> here's another http://digilander.libero.it/jackydgl0/pics/lab1.jpg
[22:22:13] <les_w> k
[22:22:32] <Jacky^> no idea about torque or inertia
[22:23:03] <les_w> try to hunt up specs from the part number
[22:23:17] <Jacky^> to google ?
[22:23:23] <les_w> If you can't find them they can be measured
[22:23:23] <Jacky^> I tried ...
[22:23:30] <les_w> if you have some electronics
[22:23:37] <les_w> and it looks like you do
[22:24:04] <Jacky^> les_w: how can be measuerd ?
[22:24:13] <les_w> voltage and torque constant is easy right?
[22:24:24] <domenique> hello les_w
[22:24:25] <Jacky^> voltage ok
[22:24:27] <les_w> for voltage measure rpm
[22:24:34] <Jacky^> rpm i think too..
[22:24:38] <alex_joni> * alex_joni has a new picture on his website :)
[22:24:40] <les_w> for torque lift a mass on an arm
[22:24:46] <les_w> or pully and weight
[22:25:04] <Jacky^> ok
[22:25:12] <Jacky^> right
[22:25:15] <Jacky^> :)
[22:25:28] <Jacky^> well, i want to test it
[22:25:36] <Jacky^> before to buy all motors
[22:25:36] <les_w> inertia is a little harder
[22:25:45] <alex_joni> get a good timer :D
[22:25:48] <Jacky^> i can have 2 of these for free
[22:25:49] <alex_joni> for inertia
[22:25:55] <les_w> if you have a servo amp and signal generator not too hard
[22:26:07] <Jacky^> good
[22:26:13] <les_w> also ramp up/coast down time at constant current
[22:26:14] <Jacky^> ill try
[22:26:23] <les_w> subtracting friction
[22:27:03] <Jacky^> sholde be DC motor right ?
[22:27:19] <Jacky^> for what I inderstand .. readind the label
[22:27:26] <Jacky^> reading*
[22:27:36] <les_w> assuming ball bearings and low friction moment of inertia =torque/angular acceleration
[22:27:49] <les_w> yes looks like brush cd
[22:28:02] <Jacky^> okay
[22:28:44] <les_w> if you have something to log and plot rpm vs time you can easily calculate angular acceleration
[22:29:01] <Jacky^> uhm .. no
[22:29:01] <alex_joni> night guys
[22:29:04] <les_w> friction can be determined from an open circuit coast down test
[22:29:10] <les_w> night alex
[22:29:11] <Jacky^> night alex_joni
[22:29:16] <domenique> nightttt
[22:29:20] <domenique> alex_joni
[22:30:15] <Jacky^> les_w: great
[22:30:30] <Jacky^> it looks like nice motor
[22:30:35] <les_w> jacky need to borrow a data aquisition card or something
[22:30:41] <Jacky^> i'm not sure to use it in my machine
[22:30:43] <les_w> or digital oscope
[22:31:02] <Jacky^> but would be nice to use in some application
[22:31:13] <Jacky^> les_w: understood
[22:31:27] <les_w> it looks like square frame...medium inertia
[22:31:44] <Jacky^> les_w: i think its an old motor..
[22:31:52] <Jacky^> looking at date
[22:31:52] <les_w> yes pretty old
[22:32:02] <Jacky^> maybe 86
[22:32:32] <les_w> not good if it is too old to get brushes for
[22:32:47] <Jacky^> mmm
[22:32:50] <les_w> unless it was never used
[22:33:04] <les_w> think it can last a few thousand hours
[22:33:07] <Jacky^> nope, it is used ..
[22:33:13] <les_w> I see
[22:33:27] <les_w> migth be better for something else then
[22:33:38] <Jacky^> yeah
[22:33:56] <les_w> so it will not be like a new car with old engine
[22:34:05] <Jacky^> right
[22:34:11] <les_w> oh I am still looking at helocopters
[22:34:17] <Jacky^> my cousin want to build a plasma cutter
[22:34:19] <les_w> someone stop me!
[22:34:32] <Jacky^> we talked time ago with robin_sz
[22:34:47] <Jacky^> but we prefer to use steppers
[22:35:02] <Jacky^> not dc motors
[22:35:15] <Jacky^> maybe he can use these motors for a lathe
[22:35:21] <les_w> I learned that if the engine quits you have 1 second to reduce collective pitch and disengage rotor clutch
[22:35:25] <les_w> 1 second.
[22:35:30] <les_w> otherwise...
[22:35:33] <les_w> dead meat
[22:35:41] <les_w> gulp
[22:35:47] <Jacky^> :P
[22:35:50] <les_w> haha
[22:35:53] <Jacky^> thats ok
[22:35:54] <Jacky^> haha
[22:36:12] <les_w> if under 150 meters height...no chance
[22:36:23] <les_w> hmm
[22:37:18] <Jacky^> les http://digilander.libero.it/jackydgl0/pics/lab3.jpg
[22:37:41] <les_w> well must go. I have to make a "house call" Aunt can't get her computer program to work.
[22:37:44] <les_w> looking
[22:37:59] <Jacky^> he has (my cousin) 2 of these screw too
[22:38:10] <Jacky^> he bought from canada years ago
[22:38:30] <Jacky^> good quality SKF
[22:38:56] <Jacky^> 1 mt lenght
[22:39:24] <les_w> check the backlash
[22:39:37] <Jacky^> zero
[22:39:44] <Jacky^> no backlash
[22:39:45] <les_w> oh good
[22:40:03] <Jacky^> but he cant use them for plasma cutter ..
[22:40:24] <les_w> but...for 1 meter travel you need 1.3 meter screws...
[22:40:29] <Jacky^> so, probably, he will use for some other apps
[22:40:33] <Jacky^> no idea..
[22:40:34] <les_w> but you could reduce travel a little
[22:40:47] <Jacky^> not for me
[22:40:52] <les_w> I see
[22:40:58] <Jacky^> i know
[22:41:03] <les_w> well bbiaw, ok?
[22:41:07] <Jacky^> :)
[22:41:10] <Jacky^> ta
[22:42:10] <Jacky^> that what happen when someone bought things without know ..
[22:45:39] <Jacky^> oh oh
[22:46:12] <Jacky^> Halloween night :P
[23:04:09] <fenn> so many pedestrians, so little time..
[23:08:58] <Jymmm> * Jymmm hands fenn a "Detriot no fault bumper"
[23:09:33] <fenn> i'm surprised the gov't doesn't make you sign a liability waiver before legally crossing the street
[23:10:45] <Jacky^> fenn: about ?
[23:11:18] <fenn> so you can't sue them when you get hit by a car on public property
[23:11:33] <Jacky^> where ??
[23:11:36] <Jacky^> there ?
[23:11:40] <fenn> nowhere.. nevermind
[23:12:34] <Jacky^> here there a clean law
[23:12:44] <Jacky^> not at all respected
[23:12:49] <Jacky^> but exist ..
[23:13:07] <anonimasu> :
[23:13:26] <Jacky^> thats the problem of Italy
[23:13:44] <Jacky^> were very cleaver to write laws
[23:14:00] <Jacky^> not enough to respect them ..
[23:14:32] <Jacky^> I like US for this
[23:14:44] <anonimasu> heh
[23:14:48] <Jacky^> :)
[23:21:15] <Jacky^> i'm having a sleep crisis ..
[23:21:22] <Jacky^> crashing :/
[23:21:25] <Jacky^> night
[23:21:47] <Jacky^> Jacky^ is now known as Jacky^afk
[23:23:48] <domenique> hello night all