#emc | Logs for 2010-09-03

[00:00:00] <tom3p> gnite
[00:00:12] <jthornton> say goodnight Gracie
[00:01:05] <tom3p> i found Titanium doesnt like to EDM, it creates some pyro-mumble swarf that inhibits further cutting and the tools wear really weird.
[00:01:48] <jthornton> wow I hope you didn't breath any of that
[00:02:03] <tom3p> the center of the tool gets concave, edges stay put, corners advance. , the cut is very stabile, but the wear is huge
[00:02:18] <tom3p> yeah, stinks like aluminum, and the oil get polluted
[00:02:30] <pingufan> ha, Ubuntu seems to not support parallel printers? :)
[00:02:54] <SWPadnos> the linux parallel port driver may be disabled so that emc can use the port
[00:27:00] <pingufan> steppers work! Spindle, too !
[00:28:02] <pingufan> I made my flat ribbon cable and forgot to reverse it on one end. (shame on me)
[00:58:11] <pingufan> can somebody, please help me with the homing procedure?
[01:01:21] <pingufan> I want to have the machine's 0/0/0 point in front-left-lowest corner (lowest meanssurface of desk), but the home switches are in rear-left-highest position. directions are set to right-handed. X increases to right, Y increases to the rear, Z increases upwards.
[01:20:53] <tom3p> cool cad turbine blade design for linux ( commercial limited time free demos ) http://www.atech.de/index.php?option=com_content&view=article&id=86&Itemid=103&lang=en
[01:21:24] <morficmobile> major rain here, no middle ground, dry dry dry or pouring out of buckets
[01:24:39] <morficmobile> fun, i help the guy on the floor, and when i come back tom3p is gone again, wanted to ask him about his Ti he bought :)
[02:25:29] <KimK_> pingufan: You might want to reconsider your choice of Z zero, usually Z zero is where the spindle is at maximum height, and Z- values increasingly approach the table (are we talking about a mill here?). Although your system would work, it would be a little unusual or unexpected. The X and Y settings are easier, although there is a "conventional" setting for them too.
[02:33:15] <KimK_> s/at maximum height/at maximum height or aligned with the tool changer mechanism, if any/
[02:38:37] <ries_> ries_ is now known as ries
[02:51:55] <Jymmm> Jymmm is now known as Red70sShow
[02:52:04] <Red70sShow> Red70sShow is now known as Jymmm
[02:57:18] <morficmobile> KimK: G54 at Z0 means you mill the table in this shop :)
[03:08:49] <KimK> morficmobile: Interesting, so your machine is set up with Z machine offset / no offset starting at a high positive value after homing (up)? What kind of a machine do you have there, emc2 or something else? And thanks for the reminder, I had in mind "no offsets" (G53, machine offset, etc.) but that isn't really a "modal mode"(?) in emc, is it? Tell us about your machine, won't you?
[03:22:18] <morficmobile> not emc2 yet
[03:22:49] <morficmobile> and we shift it from where you have it down to table, but for anyone operating, Z0 starts on the table
[03:23:39] <morficmobile> so the machine is not really weird or different, it's just a way to simplify things, for us, seems noone else agrees it's simpler this way
[03:28:49] <KimK> Yes, Z0 on the table sounds good once you are using offsets and setting fixtures up, etc. So I'll agree with you, if that helps, lol. And it makes sense because the table and the spindle centerline are the only two references (on a mill) that are self-establishing. What brand of machine do you have?
[03:29:08] <morficmobile> KimK: Just makes me smile at the whole expectations part of "this is how it is". Also makes me smile because as it stands, with EMC2, we will have to rethink what we do, unless we start out with tool and part probes ready to go, then it's a moot point.
[03:29:40] <morficmobile> "Johnford", don't buy one.....
[03:32:13] <KimK> Ha, why, what don't you like about it? (I don't think I've ever heard of one, should I have?)
[03:32:29] <morficmobile> The shift amount ties to a tool presetter, the way it's done, the actual number we get from presetter does not really need to relate to the spindle as long as we use it's measurement when establishing the shift amount.
[03:33:07] <morficmobile> the problems we had with it over the years, from long before i started here until now (i work here now 3 yrs)
[03:36:29] <KimK> Oh, I should ask what control? Or do they use their own?
[03:38:07] <KimK> Hey, L8, how are you?
[03:39:37] <KimK> welcome back splitters
[03:40:37] <morficmobile> KimK: still a Fanuc
[03:41:02] <KimK> OK. Which number?
[03:42:07] <KimK> * KimK hopes it's not a 5, lol.
[03:47:43] <L84Supper> heh.. net splits plus isp issues here due to weather
[03:52:08] <morficmobile> kimK: 18M
[03:53:42] <KimK_> Well, 18M doesn't sound too bad, has it been retrofitted once already?
[03:59:03] <morficmobile> not that i know of
[04:11:33] <morficmobile> Luckily cradek will have time to add all the stuff we need for the mill by the time we get there, for right now, we get parts for the Mori Seiki.
[04:18:44] <KimK_> What does cradek need to add?
[04:21:29] <morficmobile> just yanking his chain right now mainly
[04:21:57] <morficmobile> nothing better than a late night "who said my name? *ugh* he wants something crazy"
[04:29:36] <L84Supper> http://milwaukee.craigslist.org/tls/1919690888.html anybody have a tank or bulldozer I could borrow to pull this out his basement?
[04:51:33] <morficmobile> all you need is a good pallet jack and your vespa
[04:55:20] <L84Supper> heh... I wonder why he didn't include a pic of the 45 deg ramp
[04:57:39] <Birdman3131> Birdman3131 is now known as zoombiiieeee
[04:57:39] <zoombiiieeee> zoombiiieeee is now known as Birdman3131
[05:12:58] <Jymmm> L84Supper: comealong
[05:19:11] <morficmobile> L84Supper: did he build his house around it?
[05:25:21] <Jymmm> http://sfbay.craigslist.org/sby/tls/1933650491.html
[05:31:30] <ichudov> how my Bridgeoprt Interact mill looks right now: http://igor.chudov.com/projects/Bridgeport-Series-II-Interact-2-CNC-Mill/28-September/
[05:34:30] <morficmobile> woo, hot job done, now on to more process reworking :)
[05:42:59] <ichudov> just tryin' to do one step at a time
[05:45:26] <morficmobile> are you the double Z axis guy on the list?
[05:46:49] <morficmobile> ichudov: and gmail says it is you :)
[06:01:20] <ichudov> Yes, I am the double Z axis
[06:01:54] <ichudov> With the W axis (second Z), I would have effective vertical travel of 20 inches or so and could drill big holes
[06:13:50] <ichudov> L84Supper: This is a K&T #4. "in the basement"???
[07:03:39] <pingufan> Good morning (at least here it is).
[07:06:32] <pingufan> What does "Reference-point in stepconf, configuration of one axis, mean? This value will be set to machine coordinates when limit switch was sensed?
[08:07:48] <Fox_M|afk> Fox_M|afk is now known as Fox_Muldr
[08:15:20] <Fox_Muldr> Fox_Muldr is now known as Fox_M|afk
[09:00:35] <KimK_> KimK_ is now known as KimK
[09:04:06] <morficmobile> sweet, i'll be home by time people start heading to work.
[10:45:16] <pingufan> Meanwhile I start to become a little bit familiar with stepconfig, but I still have some little problems. If somebody could help me adjusting the settings?
[10:47:39] <jthornton> just turn the second knob on the right CCW about three clicks and you should be fine :)
[10:51:24] <alex_joni> I disagree.. it's two clicks on that one, and one click CW on the pink one
[10:51:33] <alex_joni> then toggle the blue lever up/down 4 times
[10:51:45] <jthornton> I forgot about the blue one
[10:52:01] <alex_joni> that makes your machine grow a 4th axis
[10:52:13] <pingufan> Hi, my 3-axes mill has end switches for homing in left-rear-top (x,y,z) corner of workspace. Actually I want to have the machine origin in left-front-bottom. How do I configure that?
[10:53:06] <alex_joni> use home_offset and home positions
[10:53:30] <alex_joni> if a switch has been tripped, then the current position becomes HOME_OFFSET, and the machine will then travel to HOME
[10:53:39] <alex_joni> so if you say HOME_OFFSET = 50, HOME = 0
[10:53:55] <alex_joni> (that assumes the axis travels 0..50, with the switch at 50)
[10:54:38] <jthornton> hmm stepconf does not have the home offset option
[10:55:05] <alex_joni> well.. then, I gues syou push the magix [x] button top-right, and use an editor to edit your ini file :)
[10:55:22] <jthornton> yep that would work
[10:56:25] <jthornton> alex_joni: what had you tripped up the other day on homing?
[10:56:39] <pingufan> ... or that would be fixed in stepconf. (which is the better way).
[10:56:50] <alex_joni> jthornton: dunno, probably PEBCAK
[10:56:57] <jthornton> ah ok
[10:57:22] <alex_joni> pingufan: probably, but even if, you'd still have to wait a long time (this fix will probably end up in 2.5.x, so maybe 6-12 months away)
[10:57:26] <jthornton> pingufan: all you have to do is submit a patch for stepconf
[10:57:47] <alex_joni> it's a simple fix
[10:58:30] <pingufan> This might be simpe to you, but not for a newbe.
[10:58:50] <alex_joni> editing the ini sure is simple
[10:59:12] <jthornton> simple if you know glade
[11:00:01] <pingufan> I know 'joe'. That's another ascii editor.
[11:00:09] <jthornton> http://www.linuxcnc.org/docview/html//config_ini_homing.html
[11:00:23] <jthornton> glade is for stepconf :)
[11:38:36] <pingufan> Hmm - Which units are used for HOME_OFFSET? Is it inches/Millimeter or something else?
[11:40:54] <pingufan> What I want is that the machine moves to X=0 Y=max Z=max as home position, but the coordinate origin should start in front/left/lowest position
[11:41:32] <SWPadnos> the units are whatever you defined for that axis
[11:41:59] <jthornton> http://www.linuxcnc.org/docview/html//config_ini_config.html#sub:[AXIS]-section
[11:42:42] <pingufan> Sorry for asking such possibly stupid questions, but I am absolutely new to EMC. I possibly think too complicated therefore.
[11:42:56] <SWPadnos> it seems likely :)
[11:43:30] <jthornton> you just didn't know were in the docs to find the answer
[11:44:19] <pingufan> I had borrowed a mill with some windows software a longer time ago, there it was relatively easy, but with EMC it is really hard to me.
[11:44:44] <jthornton> it will be easy once you know how :)
[11:45:28] <jthornton> * jthornton has to shut down the dialup connection now...
[11:45:49] <SWPadnos> out of curiosity, did you configure the other mill (including installation of the OS, driver tuning to improve step generation, setup of machine parameters, etc)?
[11:45:52] <pingufan> It would be very kind if you could suggest me a good start configuration. You have much more experience than me on how it is best to to.
[11:46:14] <SWPadnos> is this a stepper machine?
[11:46:19] <pingufan> yes.
[11:46:29] <SWPadnos> are you using stepconf to create the configuration?
[11:46:35] <pingufan> yes
[11:47:15] <SWPadnos> ok. what would make it easier for you?
[11:47:59] <SWPadnos> if there are changes that can be done to stepconf to make it easier, which aren't specific to you, we can make those changes
[11:53:22] <pingufan> I surely think too complicated only. I show you how the mill looks like: http://www.hantsch.co.at/_temp/VX.jpg.
[11:54:19] <pingufan> The homing position is upper-left-rear corner (there are the switches).
[11:54:52] <SWPadnos> so kind of above that red logo on the left?
[11:55:27] <alex_joni> SWPadnos: stepconf doesn't have inputs for HOME_OFFSETS
[11:55:37] <SWPadnos> really?
[11:55:39] <alex_joni> so you can only create configurations where HOME is on the switch
[11:55:49] <alex_joni> that's what BJT said
[11:55:55] <SWPadnos> huh
[11:55:59] <pingufan> This is very comfortable for mounting a workpiece, but I'd prefer to have coordinates starting then from front-left-bottom
[11:56:01] <alex_joni> I didn't check
[11:56:18] <alex_joni> pingufan: machine units are mostly irrelevant
[11:56:33] <alex_joni> you can always touch-off your part/program (as you need to do anyways)
[11:56:39] <SWPadnos> it has "Home Switch Location"
[11:57:00] <SWPadnos> and "Home Location"
[11:57:07] <alex_joni> humm.. then I take it back
[11:57:26] <pingufan> Aha. So I use a fine pointer instead of a tool, move to a reference point on my workpiese, and simply say this is 0/0/0 ?
[11:57:32] <SWPadnos> I'm betting "Home Switch Location" is the location of the switch and "Home Location" is the place to move after finding the switch
[11:57:37] <alex_joni> pingufan: that's what touch-off does
[11:58:13] <alex_joni> fine pointer or any other way of finding the workpiece
[11:58:19] <SWPadnos> but you still want the home switches - those create the relationship between the machine limits and the EMC2 soft limits
[11:58:26] <micges_work> Home switch location is home offset
[11:58:36] <micges_work> wrong name - should be fixed
[11:58:46] <micges_work> I've check it
[11:58:50] <alex_joni> home switch location is a much better name :)
[11:59:07] <pingufan> Ok. So the switches are good to synchronize to the machine's limits, nothing more.
[11:59:23] <SWPadnos> nothing more, but that's a pretty big thing :)
[11:59:47] <SWPadnos> bbiab
[12:00:06] <pingufan> Sure. I will come back in 30 minutes. Ok?
[12:00:19] <pingufan> (Customer is here)
[12:22:07] <piasdom> to use o#<_name> instead of o100(not calling a file), is this the correct format? o<_name> call
[12:24:18] <pingufan> Ok, I am back.
[12:26:08] <pingufan> Well, homing the machine and then software-clipping moves to the machine's abilities is very important, but there are now two additional things: 1. Tool-length correction, 2. logical origin of workpiece.
[12:29:29] <pingufan> with every tool change the following should happen: Move to max Z position and min Y position (so the workpiece gets out of the area where I manually have to replace the tool). Then the program has to pause until I confirmed the tool change. After that, the sensor (mounted on left-rear corner of the desk) has to be touched with the new tool to sense the new length, then the machine has to position above X/Y with max Z and continue to work.
[12:33:28] <pingufan> (The picture from above shows the mill with a little workpiece holder, I adopt it foe a big desk with T-nuts.
[12:35:35] <SWPadnos> pingufan, you can set a tool change position - look at the ini file docs jthornton pointed out to see how (it may be in stepconf, I don't know). On the "Basic Machine Information" page of stepconf is a checkbox called "Onscreen prompt for toolchange" - check that and you'll be prompted to manually change tools whenever the program hits an M6
[12:36:15] <SWPadnos> you can also look at tool-length-probe.ngc (I think) - this shows how to automatically measuer and use a new tool length offset
[12:36:32] <SWPadnos> I think you need to add a G-code subroutine call after every M6 to use it though
[12:37:16] <SWPadnos> piasdom, you don't need the underscore ( _ ), but yes, o100 call or o<name> call (no # sign)
[12:37:30] <piasdom> SWPadnos: Thanks
[12:37:33] <SWPadnos> (at least that's how I think it works - # is for variables)
[13:14:32] <Guest958> hello everyone
[13:15:26] <Guest958> can enyone help me to install emc2 on my pc
[13:16:39] <Guest958> if i trying to instal it i got error and close that installer .. what can i do ??
[13:17:27] <JT-Work> what livecd?
[13:18:19] <Guest958> yes i downloaded it from linuxcnc.org
[13:18:39] <micges_work> yes but what version?
[13:18:46] <JT-Work> 8.08?
[13:18:53] <JT-Work> hi micges_work
[13:18:56] <micges_work> hi
[13:19:04] <Guest958> Ubuntu 6.06
[13:20:18] <JT-Work> is your hardware old or new?
[13:21:04] <Guest958> pentum 4
[13:21:30] <Guest958> its old
[13:22:08] <SWPadnos> 6.06 is no longer supported, there won't be any more EMC2 updates for it
[13:22:27] <SWPadnos> you should try the 8.04 or 10.04 based CD
[13:22:32] <JT-Work> you might try the 8.04
[13:24:59] <Guest958> ok I have another PC, Ubuntu 10.04 on it, can i use it ??
[13:25:07] <JT-Work> or a newer computer
[13:25:36] <Guest958> how an i install emc2 on it ??
[13:26:00] <JT-Work> http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Ubuntu10.04PackageNotes
[13:26:26] <Guest958> how can i install emc on 10.04 ??
[13:26:43] <JT-Work> JT-Work>http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Ubuntu10.04PackageNotes
[13:29:12] <Guest958> thank you bro, but i tryed that documentation, after restart my PC i got out of rang messege on the monitor
[13:31:14] <pingufan> Can somebody explain me, please what homing is good for? I homed the machine, and I still can hit the machine's limits afterwards with the cursor keys (jogging).
[13:32:45] <SWPadnos> are your limits set correctly?
[13:32:56] <SWPadnos> (it sounds like they aren't)
[13:34:14] <pingufan> No. I can hit the limits where the home switch is, but I cannot advance to the physical other limit (stops a lot before).
[13:35:01] <JT-Work> your limits are not set correctly if you can hit the limit switch while jogging
[13:35:30] <pingufan> But shouldn't at least the limit on the switch side be ok?
[13:35:36] <JT-Work> * JT-Work wishes my Anilam could home ;?
[13:36:02] <JT-Work> I'm sure I don't understand your question
[13:37:25] <pingufan> Machine does a homing "Referenzfahrt-Button". So it knows where 0/0/0 is. So why can I then move over this point at all?
[13:38:11] <pingufan> Ok, when i enter a wrong max value, the opposite end of the axis will be wrong, but never the sensed home one?
[13:38:35] <pingufan> Or I understand something wrong (privilege of a newbe) ;)
[13:39:13] <JT-Work> so you need to set your min value so you can not move to 0,0,0
[13:41:37] <SWPadnos> here's an example: if your machine can move 500mm in X, and you want zero to be in the middle of travel, you would set "Home Switch Location" to -250, "Home Location" to 0, and the travel limits would be -250 to +250
[13:42:32] <SWPadnos> on the same machine (500 mm travel, switch on the left side), if you want the zero position to be on the left side, you would set the home switch location to 0, and home location to 250 (since that's the center of travel), and limits to 0, +500
[13:42:57] <SWPadnos> in either case, the machine will move to the left side to find the switch, then move to the middle afterwards
[13:43:10] <SWPadnos> it's just a question of what you call those locations
[13:49:17] <pingufan> Ok, let's focus on X-Axis: It can travel 366 mm to the right from the home switch. I want the machine origin at the switche's position, so what do I enter now in stepconf?
[13:52:50] <pingufan> I currently have entered: Reference point = 0.0, "Verfahrweg" = 0.0 to 365.0, reference switch = 0.0 speed of reference-move: 30mm/s,
[13:52:59] <pingufan> Is this correct?
[13:53:36] <SWPadnos> sounds about right. if you set home location to 180, the machine will move near the center of travel as the last step in homing
[13:54:16] <pingufan> home position == Reference point ?
[13:54:17] <SWPadnos> and you may want to set the switch position as -1, with the travel limits from 0 to 364
[13:54:47] <SWPadnos> I don't know for sure. the upper item in stepconf is the switch location and the lower one is the position to move to after finding the switch, if I remember correctly
[13:56:15] <pingufan> Are the positions set in mm when I set previously units ito be mm?
[13:56:32] <JT-Work> yes
[13:56:50] <pingufan> 3rd row in lower part is reference switch.
[13:57:56] <pingufan> So the first rof from there is the position where it shall move to after hitting the switch?
[14:01:06] <JT-Work> I think so... but it has been a while since I have set up a machine
[14:03:21] <alex_joni> logger_emc: bookmark
[14:03:21] <alex_joni> Just this once .. here's the log: http://www.linuxcnc.org/irc/irc.freenode.net:6667/emc/2010-09-03.txt
[14:06:36] <pingufan> ?
[14:08:37] <pingufan> What shall I do with this log?
[14:10:32] <SWPadnos> first item in lower section is the place to which to move after homing, third item is the location of the switch
[14:10:58] <SWPadnos> I wonder what happened to the tooltips
[14:13:56] <pingufan> I wonder a little bit more about this: I configured 200 steps/revolution, 1:1 gear, 8 turns/inch for the thread, and also the correct max moving length. And now it comes: After homing, I cannot move 364 mm to the right, only ~73mm !
[14:15:13] <pingufan> this is 1/5'th of the length! Do Gecko drives G251 make micro-steps?
[14:15:25] <JT-Work> when you move 73mm what does the dro say?
[14:15:34] <JT-Work> yes they have 10 microsteps
[14:15:53] <pingufan> it saiy 364
[14:15:59] <pingufan> sais ...
[14:16:25] <pingufan> I cannot exceed that limit.
[14:21:29] <pcw_home> Did you re-run stepconf with 2000 steps/rev?
[14:22:11] <piasdom> pingufan: you may need to adjust your scale
[14:22:19] <JT-Work> my guess is he left microstepping at 2
[14:22:23] <SWPadnos> definitely. it's probably 1000
[14:22:26] <JT-Work> instead of 10
[14:22:30] <SWPadnos> yep
[14:22:42] <SWPadnos> err, you know
[14:22:45] <pingufan> I had it set to 1, now to 5.
[14:22:57] <SWPadnos> then something else is not correct
[14:23:03] <JT-Work> yep
[14:23:05] <SWPadnos> is the screw a 2-start?
[14:23:16] <pingufan> Didn't test it with 5, I walt to the mill right now.
[14:27:39] <pingufan> Much better, but still strange. instead of 364mm it moves only 333mm
[14:27:46] <pcw_home> Wouldn't it be 200 steps per rev and microsteps =10
[14:28:08] <SWPadnos> pingufan, is this a eurpean machine?
[14:28:12] <SWPadnos> European
[14:28:29] <SWPadnos> if so, it's likely to be mm screws, maybe 3mm per rev
[14:29:51] <pingufan> The screw is a 1-start and is 8 turns/inch. I measured very exactly 25.4mm for 8 turns, if it would be ~8.5 turns.
[14:31:28] <pingufan> I simply enter 3mm for a test...
[14:32:56] <pingufan> Does ems recognize a change in the configs, or must I always restart ist?
[14:33:05] <SWPadnos> ini changes require a restart
[14:33:28] <pingufan> Ok, let's see what happens now...
[14:36:02] <pingufan> Hmm - I entered now 3.0 instead of 3.175 (== 1/8"), so the way should be longer now. It is shorter!
[14:39:20] <skunkworks_> skunkworks_ is now known as skunkworks
[14:46:26] <pcw_home> If you have 10 uSteps/FullStep that means 2000 steps/rev (with 1.8 deg step motor)
[14:46:27] <pcw_home> so with 8 threads per inch, this is 16000 steps/inch or a SCALE value of ~629.92160 for mm units
[14:46:29] <pcw_home> you might check this in your ini file
[14:46:57] <SWPadnos> setpconf asks for each item (steps/rev, microstepping, drive ratio, screw pitch) and calculates the final scale for you
[14:47:32] <piasdom> stepconf always gets my scale wrong
[14:47:55] <SWPadnos> stepconf uses the numbers you enter to calculate it, so somewhere your numbers are wrong
[14:48:21] <piasdom> i know, i just can't figure where :)
[14:48:39] <SWPadnos> heh
[14:48:55] <piasdom> it like 32000 for some reason
[14:49:06] <piasdom> and should be 16000
[14:49:33] <pingufan> I also get the impression that something here must be wrong. I entered 3.0 instead of 3.175 mm per turn and the physical move is SHORTER?
[14:50:15] <SWPadnos> fewer steps/unit so fewer steps get sent
[14:50:28] <SWPadnos> err, nevermind. back to real work for me
[14:51:44] <pingufan> That's wrong. When I enter a finer thread on the screw, the calculation should give more steps for the same move, not less.
[14:52:31] <SWPadnos> yeah, that's why I'm getting back to real work now :) (can't have me making silly mistakes all the time)
[14:52:59] <pingufan> hihi. But then stepconf definitly does wrong things. :(
[14:56:26] <pcw_home> Well then just set the scale manually (there may be other problems and this and will eliminate stepconf as a suspect)
[14:58:39] <JT-Work> stepconf does just what you tell it to do :)
[14:59:06] <pingufan> Ok. Must only understand. Scale sais what? How many steps for 1mm are required?
[14:59:18] <piasdom> noooooo .... i tell it to fix my machine and it does nothing
[15:00:01] <JT-Work> I tell it to make dinner and it complies
[15:00:40] <piasdom> at least yours talk to you
[15:04:14] <pcw_home> 629.92160 steps for one mm (Stepconf should get this right if the input numbers are right)
[15:05:27] <danielfalck_> danielfalck_ is now known as danielfalck
[15:07:27] <pingufan> I calculated the same. It does not match reality. I hit the opposite machine limit. I try exactly 1/2 of it.
[15:11:33] <pingufan> 330mm instead of 364mm (roughly measured)
[15:13:36] <skunkworks> logger_emc: bookmark
[15:13:36] <skunkworks> Just this once .. here's the log: http://www.linuxcnc.org/irc/irc.freenode.net:6667/emc/2010-09-03.txt
[15:14:10] <CNCbuild> CNCbuild is now known as mendelbuild
[15:15:15] <pcw_home> Well one of your assumed numbers must be wrong (or you have some other mechanical/ missing step problem)
[15:18:10] <mendelbuild> mendelbuild is now known as mendel|pancakes
[15:22:12] <pingufan> increasing the scale makes actual move longer or shorter?
[15:23:37] <piasdom> 32000 moves less then 16000
[15:24:01] <piasdom> (ini scale)
[15:24:19] <pingufan> Ok. So it operates inverse.
[15:26:19] <pingufan> wrong.
[15:30:27] <celeron55_> celeron55_ is now known as celeron55
[15:33:21] <pcw_home> Scale is steps per unit (mm or inch)
[15:34:45] <pcw_home> so a larger SCALE value will generate more steps for a given machine motion
[15:37:39] <pingufan> Is it possible that I loose steps but the motor accelerates and deccelerates still smoothly?
[15:39:09] <celeron55> why wouldn't it be? :P
[16:25:21] <pingufan> Ok, Gecko confirmed that they do 10x microstepping.
[16:25:47] <JT-Work> so did I :)
[16:27:05] <pingufan> Sure. Is it possible that I loose 30mm (= some thousand steps!) without hearing any bad noise?
[16:27:17] <pingufan> I miss 30 mm
[16:27:52] <JT-Work> not usually the stepper will stall if you loose steps in my experiance
[16:29:14] <pingufan> Which stepping frequency would you see as maximum in stepconf? (It shows that value)
[16:30:36] <pingufan> I am currently around 31 kHz
[16:37:19] <SWPadnos> set both the max speed and max acceleration very low and see if you still have a scale problem
[16:37:52] <SWPadnos> speed maybe 0.2 to 0.5 IPS and accel maybe 3-10 IPS^2
[16:38:21] <SWPadnos> then do an MDI move of some amount - maybe 5 inches or some even number of mm, and measure the actual travel
[16:39:20] <piasdom> if i put 100 in step per rev, it puts my scale at 16000(which it should be). but the paperwork says 200. 200 gives a scale of 32000. why can't i get 16000 with 200 ?
[16:39:44] <pingufan> MUCH better. But why do I have to enter 5 microsteps instead of 10 ?
[16:42:36] <JT-Work> because some other number is wrong
[16:42:45] <piasdom> what does stepconf use to get the scale ?
[16:45:06] <pingufan> I have to enter a negative speed to move into the right direction for homing, as the home-switch is at Ymax. Is this good practice or not?
[16:47:28] <JT-Work> piasdom: the latency number I believe
[16:47:32] <SWPadnos> no
[16:47:39] <SWPadnos> that's for max speed
[16:47:40] <JT-Work> or not
[16:47:51] <JT-Work> SWAG :)
[16:48:08] <JT-Work> dang I didn't even read it
[16:48:17] <SWPadnos> scale is steps/rev * microsteps * screw pulley teeth / motor pulley teeth * turns per rev
[16:48:20] <JT-Work> scale not speed
[16:48:33] <piasdom> thanks
[16:48:38] <JT-Work> I'll shut up and go back to work now
[16:48:52] <SWPadnos> err, turns per unit
[16:49:58] <piasdom> what's screw/motor teeth ?
[16:50:29] <SWPadnos> if you have a pulley or gear drive, it's used to calculate the drive ratio
[16:50:36] <piasdom> no gears
[16:50:42] <piasdom> 1:1
[16:50:47] <SWPadnos> then you should have 1 and 1 in those boxes
[16:51:06] <piasdom> i do
[16:51:18] <SWPadnos> do you have 5-phase steppers?
[16:51:31] <piasdom> don't know
[16:51:34] <SWPadnos> hmmm, no, the G251 wouldn't drive them
[16:52:06] <SWPadnos> put a mark on the motor shaft, then do an MDI move which should be 2000 steps (whatever the scale ends up being)
[16:52:14] <SWPadnos> see if the mark lines up in the same spot
[16:52:20] <piasdom> k
[16:52:51] <piasdom> (30m til mill finishes)
[16:53:02] <SWPadnos> ?
[16:53:19] <piasdom> can't do it now, mill running :)
[16:53:29] <SWPadnos> ah
[16:53:36] <SWPadnos> sorry, I thought you were pingufan :)
[16:53:50] <SWPadnos> ok, back to work for me. good luck with it
[16:54:32] <piasdom> it's 2 phase(small print in paperwork)
[17:11:58] <piasdom> what's the driver microstep ? mines at 8
[17:27:53] <piasdom> sherline.com is using www.linuxcnc.com as their support site
[17:31:22] <piasdom> sorry .org
[17:42:22] <IchGuckLive> hi all
[18:11:15] <Fox_M|afk> Fox_M|afk is now known as Fox_Muldr
[18:44:34] <Jymmm> EMC2 vs EMC
[18:44:35] <Jymmm> The EMC2 interface is virtually identical to what you have seen before in our previous Debian version of EMC, so there is practically nothing new to learn if you have used it before. Sherline’s included instructions cover the use of G-code in milling operations. Technical support for the new lathe program available in EMC2 can be found in the EMC2 User’s Manual prepared by the Linux group. It is loaded on the Sherline computer or can be foun
[18:44:35] <Jymmm> d on-line at http://linuxcnc.org/docs/EMC2_User_Manual.pdf.
[18:47:13] <andypugh> Do you ever get used to the Eagle User Interface?
[18:48:19] <tom3p> its like falling off a bike, no make that a fish... you remember that it was never easy
[18:48:39] <tom3p> (but easier than Blender)
[18:55:04] <skunkworks> andypugh: you get used to it.
[18:55:24] <skunkworks> then you wonder why all the other gui's are 'odd'\
[18:55:45] <andypugh> I am wondering about waiting to see if DesignSpark comes out in a Mac version (A Linux version is on the way)
[18:56:35] <andypugh> The free version of Designspark is unlimited, and also rather handily links straight into the RS components databases.
[18:59:31] <tom3p> DesignSPark looks cool, imports Eagle. but do i spend all the time inventing new symbols ( just bitchin ;)
[19:00:04] <andypugh> I seem to be doing that with Eagle at the moment
[19:02:17] <tom3p> ponts to airfoil cross section in Blender http://blenderartists.org/forum/showthread.php?t=171239
[19:02:45] <tom3p> ponts
[19:02:53] <tom3p> points
[20:56:37] <alex_joni> http://www.surplex.com/de/maschinen/aehnliche-maschinen,5,heller-mct-160-doppelspindel-horizontal-bearbeitungszentrum-80,7,heller-mct-160-horizontal-bearbeitungszentrum-95553.html
[20:56:40] <alex_joni> cool machine
[21:03:01] <Connor> Hmm, I'm trying to decide on weather or not I want to put the motor controller board inside the mini-itx case with the control computer.. I have enough room...
[21:03:51] <andypugh> Stepper drivers seem to be no bother at all, I am les sure about VFDs
[21:07:55] <CNCbuild> CNCbuild is now known as mendel|drunk
[21:15:27] <Jymmm> alex_joni: Yeah, but can it make a mean cheeseburger
[21:16:51] <alex_joni> Jymmm: you start by mounting a cow on the left turntable
[21:17:12] <Jymmm> alex_joni: Ah, ok!
[21:18:28] <mendel|drunk> :)
[23:00:28] <alex_joni> http://www.youtube.com/watch?v=CtztrcGkCBw
[23:02:48] <andypugh> It's a measure of how good it is that people are crying "CGI"
[23:05:38] <Valen> yah that guy is good
[23:06:18] <_Fox_Muldr> _Fox_Muldr is now known as Fox_M|afk
[23:06:18] <Fox_M|afk> Fox_M|afk is now known as Fox_Muldr
[23:12:59] <alex_joni> Jymmm: is this one better than your laser? http://www.dragonlasers.com/catalog/Hulk-Ultra-Series-400mW-Green-Handheld-Laser-p-16194.html
[23:28:58] <andypugh> pcw_home: Are you there?
[23:59:16] <andypugh> Has Pingufan reported back on whether his P-Port works?
[23:59:38] <PCW> Hi andy
[23:59:53] <Jymmm> alex_joni: heh, not quite