#emc-devel | Logs for 2011-05-23

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[12:16:18] <jepler> http://hackaday.com/2011/05/23/why-build-a-cnc-mill-when-you-can-have-a-chess-robot-instead/
[12:17:56] <SWPadnos> heh
[12:20:20] <jthornton> neat
[12:23:46] <alex_joni> neat
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[17:15:55] <psha> mhaberler: i've bought working cam :)
[17:16:05] <mhaberler> ah! make?
[17:16:11] <psha> http://psha.org.ru/p/camview-emc-man1001.png
[17:16:17] <psha> field of view ~5mm
[17:16:25] <psha> heh, NoName :) MAN1001
[17:16:41] <mhaberler> very well! any link?
[17:17:19] <mhaberler> like so: http://www.newark.com/tenma/man1001/digital-microscope-10x-to-200x/dp/02P6930 ?
[17:19:10] <mhaberler> in principle they are ok - they need to get close to the workpiece :-/ AND their mechanics leaves to be desired - basically the lens + sensor must be rigidly mounted (like glued) or you get al sorts of odd results
[17:19:13] <psha> yes
[17:19:15] <psha> looks like
[17:19:22] <psha> but it's FPS is awfully low
[17:19:46] <psha> and leds are not very bright
[17:19:55] <psha> however 'still' image is nice
[17:19:56] <mhaberler> how about a autofocus loop... any opencv mechanism which can do focus? in theory the fft should change
[17:20:26] <mhaberler> like a peak of high-frequency components, but that is otoh - no idea how the pros are doing it
[17:20:33] <psha> hm, it have manual focus ring - so you need some motor to drive it
[17:20:37] <mhaberler> yep, good shot
[17:20:41] <mhaberler> no, the z axis
[17:20:45] <psha> maybe
[17:20:52] <psha> but it'll be installed in fixed position
[17:21:03] <psha> there is no Z axis - it would be XYA
[17:21:11] <mhaberler> for your customers app, ah I see
[17:21:19] <psha> so there would be two cams
[17:21:58] <mhaberler> well if mounted on z axis or in spindle the focus probing mechanism would need a 'oh shit, too close' detector..
[17:23:04] <psha> :)
[17:23:18] <psha> or one 'hot spare' camera in toolchanger :)
[17:25:00] <mhaberler> something like that..
[17:26:28] <mhaberler> btw I did an experimental rewrite of the interpreter, see if I could split _setup into worldmodel, config, interpexecstate and modalstate - goal: make separate Interps instantiable. It's definitely doable - actually most of it automatic editing
[17:27:01] <mhaberler> real goal: wipe out MDI mode from interpreter ;-)
[17:27:19] <mhaberler> if you need one, just clone the current one, then throw away
[17:36:47] <psha> :))
[17:36:55] <psha> nice idea
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[17:44:59] <mhaberler> it turns out the code becomes much easier to read - you know which variable belongs where (_setup now has a whopping 132 member variables, nicely sorted alphabetically)
[17:50:43] <psha> :)
[17:57:09] <mhaberler> to make sure any logical grouping is well hidden ;-)
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[19:11:13] <JT-Shop> 2.5 Axis Touch Off window says "tool touch relative to workpiece" no matter which selection you have made on the menu
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[19:15:33] <JT-Shop> Also no matter what selection you have made for touch off you get an offset in the current coordinate system
[19:16:33] <JT-Shop> scratch that last lie I touched off to G54 :?
[19:17:08] <cradek> JT-Shop: have you been drinking?
[19:21:46] <JT-Shop> not yet but I have a good excuse now :/
[19:22:13] <JT-Shop> the touch off window does say workpiece no matter what you have selected on the menu
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[20:47:39] <jepler> JT-Shop: that's how it's always worked
[20:48:15] <jepler> what do you think it should say instead?
[20:48:35] <JT-Shop> if touch off to fixture is selected should it not say fixture?
[20:51:14] <jepler> if the lingo's wrong it should be changed.
[20:51:29] <jepler> but there's only one message and it doesn't depend on what is being touched off (any G5X or tool)
[20:53:09] <cradek> I find it very hard to explain in one prompt what's actually going on
[20:53:35] <cradek> that one dialog is in front of so many kinds of G10 usage
[20:53:44] <JT-Shop> can it be tacked on the one that pops up when you start typing in a number?
[20:54:43] <JT-Shop> it just confused me a might when I knew I had "Tool Touch of to Fixture" selected and I started to doubt myself some
[20:56:40] <jepler> though I seem to have written that I don't remember it at all
[20:57:30] <JT-Shop> I have the same feelings about a lot of what I do :/
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[20:59:45] <jepler> there's not a simple way to make the top text change when T is chosen and "to fixture" is selected
[21:00:12] <JT-Shop> ok, thanks for looking
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[21:10:36] <jepler> it can be done complicatedly. Anybody care to test? http://emergent.unpy.net/files/sandbox/touch-off-text.patches.mbox
[21:10:46] <jepler> I suppose it should go in 2.5 and master if it works
[21:21:05] <JT-Shop> ok, let me try
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[21:36:18] <JT-Shop> jepler: it works wonderful for me, thank you
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