#linuxcnc | Logs for 2012-12-16

[00:10:35] <zephyr-cnc2> I see some posts on [emc-developers] about xenomai. Is there any performance advantage with xenomai?
[00:12:30] <andypugh> Not inherently, but it does mean you can run kernels > 2.6.32 and so newer Ubuntu versions
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[00:13:50] <zephyr-cnc2> OK so it will be needed in the future.
[00:15:51] <andypugh> Probably.
[00:16:58] <andypugh> The work also means that you can run LinuxCNC on any mainline kernel. It won't work to full capability, but you can use it like any other downloadable application, with no need for advanced kernel-wrangling or a clean install
[00:29:10] <jdh> what missing capability?
[00:30:33] <andypugh> I think that realtime performance is a bit poor on a completely standard kernel.
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[00:35:55] <Aero-Tec> for the one following my G64 quest to get my spring production going
[00:36:33] <Aero-Tec> I have over 50% increase in production
[00:36:42] <Aero-Tec> nice
[00:37:00] <Aero-Tec> thanks for all the help to the one that did help
[00:37:46] <JT-Shop> Sweet!
[00:38:20] <andypugh> What was the final config?
[00:59:46] <andypugh> What an outstandingly neat idea. Making big timing pulleys out of epoxy, using a belt as the mould: http://www.model-engineer.co.uk/forums/postings.asp?th=54791
[01:12:04] <andypugh> Or, I could just make them the normal way: http://www.model-engineer.co.uk/forums/postings.asp?th=54791
[01:12:23] <andypugh> (wrong link, I meant http://www.ebay.co.uk/itm/271117356079 )
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[01:48:15] <Nick001> Is there a prog to check out a keyboard in linux cnc? F5 and control K aren't working for me and I want to see if it's the keyboard or a bug in Linuxcnc
[01:50:37] <andypugh> I think there is something for showing keyboard scancodes.
[01:51:20] <andypugh> I remember loooking at it to try to work out how to get round the fact that my keyboard has no CTRL key (!)
[01:58:40] <Nick001> Is it in the linuxcnc package or something I have to hunt in ubuntu for?
[01:59:04] <cpresser> Nick001: showkeys
[01:59:15] <cpresser> -s
[02:00:38] <Nick001> Whats the -s for?
[02:05:19] <Nick001> guess I'll find out tommorow when I tru it out -
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[02:19:09] <Tom_itx> andypugh have you hobbed pulleys before?
[02:19:23] <Tom_itx> that belt idea is intriguing
[02:19:34] <andypugh> No. But how hard can it be :-)
[02:20:05] <Tom_itx> i hobbed a couple parts recently
[02:20:24] <andypugh> Yes, I am seriously considering moulding an epoxy pulley layer onto my ballscrew drive
[02:20:36] <Tom_itx> http://tom-itx.dyndns.org:81/~webpage/reprap/drive6.jpg
[02:20:40] <Tom_itx> using a 3mm tap
[02:20:53] <Tom_itx> they came out rather well for the first attempt ever
[02:21:02] <andypugh> freewheeling or spindle-coordinated?
[02:21:07] <Tom_itx> freewheel
[02:21:21] <Tom_itx> i guestimated the root diameter
[02:21:27] <Tom_itx> so they would somewhat mesh
[02:21:45] <andypugh> That works for gears too. Though you tend to get the required number of teeth +/- 1
[02:22:14] <Tom_itx> i need to get a rotary on my mill
[02:22:48] <Tom_itx> i put the tap in the spindle
[02:22:58] <Tom_itx> and mounted the parts on the tool post
[02:24:20] <andypugh> Does the top of the melting chamber have a pair of scoops to fit the pulleys?
[02:24:53] <andypugh> Or do you just trust the filament not to bend?
[02:25:13] <Tom_itx> i haven't gotten that far yet
[02:25:20] <Tom_itx> i just wanted to see if i could make em
[02:25:39] <Tom_itx> i think it will just feed into the melting tube
[02:26:45] <andypugh> Let me model what I mean
[02:27:10] <Tom_itx> http://tom-itx.dyndns.org:81/~webpage/reprap/nozzle7.jpg
[02:27:23] <Tom_itx> there's a nozzle i made but i think i'm gonna redo it already
[02:28:34] <Tom_itx> supposedly there will be very little gap between the feed and the nozzle inlet
[02:29:29] <Tom_itx> i'm just collecting bits n pieces atm. haven't formulated a real plan yet
[02:30:55] <Tom_itx> i wonder if you could cut the belt to length for different size pulleys if you secured it to the mold
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[02:34:47] <andypugh> If the nozzle inlet looked like this: http://imagebin.org/239516 There would be absolutely nowhere for the filament to escape.
[02:35:52] <andypugh> Another thought. Diesel engine glow plugs. 12V and fairly cheap (if a little too long)
[02:36:03] <Tom_itx> i'm not sure that's ever been a problem for em
[02:36:24] <andypugh> I don't care, it's a cool shape :-)
[02:36:45] <Tom_itx> :)
[02:37:24] <Tom_itx> http://www.2engineers.com/shop/catridge-heater-30w12v/
[02:37:31] <Tom_itx> some have been using those
[02:37:50] <Tom_itx> are you making a reprap now?
[02:38:23] <Aero-Tec> the final config was turning axis B into axis Z
[02:39:01] <Aero-Tec> it complains about out of range then starting the Gcode but hitting continue works
[02:39:23] <Aero-Tec> just used G64, did not use G93
[02:39:43] <andypugh> Tom_itx: http://imagebin.org/239516
[02:40:19] <Aero-Tec> also used G10 L20 P0 Z0
[02:40:35] <Tom_itx> same image as before
[02:40:49] <andypugh> Tom_itx: Glow plugs probably have a lot more oomph.
[02:40:56] <andypugh> Doh
[02:41:02] <andypugh> http://www.ebay.co.uk/itm/50954392210
[02:41:03] <Aero-Tec> to zero the Z axis after some quick math and relocating Z to the nearest zero of the axis
[02:41:34] <Tom_itx> item has been removed
[02:41:37] <andypugh> Aero-Tec: You know G-code has a MOD function? Might help with the mathematical stuff
[02:41:56] <andypugh> Doh!
[02:41:57] <andypugh> http://www.ebay.co.uk/itm/150954392210
[02:42:21] <Tom_itx> the problem with them is the size
[02:42:32] <andypugh> (We run them at up to 1000 degrees. You clearly wouldn't want to)
[02:42:33] <Tom_itx> mounted to the z axis which they like as light as possible
[02:42:50] <andypugh> They are smaller than you might think.
[02:43:24] <andypugh> The terninal is a 4mm thread, I think. 10mm on the larger thread.
[02:43:31] <Aero-Tec> I did not spend much time with the math, I should have used the MOD function but did not
[02:43:50] <Tom_itx> i think the nozzle hole for the heater is 6mm
[02:44:05] <Tom_itx> is the heat concentrated at the tip?
[02:44:20] <Aero-Tec> now I know things work and are worth the work I will redo the Gcode to make it better
[02:44:25] <Tom_itx> you would need to figure a way for more direct contact to the nozzle
[02:44:33] <andypugh> You can see the discoloured part from the EOL test.
[02:45:09] <andypugh> TBH I hadn't realsied that the cartridge heaters were that cheap.
[02:46:09] <Tom_itx> yeah they're not that much
[02:48:03] <Tom_itx> the real trick for a nozzle now is a skinny piece of stainless with an aluminum heater block on the tip
[02:48:19] <Tom_itx> i'd guestimate 6 or 8mm hex
[02:48:58] <andypugh> Just pass a large current through the stainless. :-)
[02:49:14] <andypugh> Hmm, or an induction heater.
[02:50:19] <Tom_itx> http://prusanozzle.org/
[02:51:01] <Tom_itx> i'd guess that to be 6mm hex
[02:53:14] <andypugh> Looks nice, actually
[02:53:23] <Tom_itx> yep he's proud of it
[02:53:41] <Tom_itx> it's a simple lightweight design
[02:54:01] <Tom_itx> i was a bit concerned using stainless to heat since it's not that great a heat conductor
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[03:16:06] <andypugh> Anyway, 'tis late here. Night all
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[04:02:38] <L84Supper> http://www.bunniestudios.com/blog/?p=2686 nice ARM board for EMC
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[04:57:22] <mikegg> has anyone tried using Jeplers arduino driver with the Uno?
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[05:13:18] <gene78> awful quiet in here
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[05:29:11] <tjb1> hey r00t4rd3d
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[06:53:57] <tjb1> Anyone here good with RAM?
[07:02:44] <s1dev> where can I get a rack and pinion of ~4ft in length?
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[07:06:09] <tjb1> moore gear
[07:06:19] <tjb1> http://www.mooregear.com/
[07:06:31] <s1dev> tahnks
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[07:17:58] <tjb1> It was $239 for 26' of 20 pitch - 20 pa rack
[07:18:01] <tjb1> shipped
[07:47:04] <RyanS> Dear santa https://www.youtube.com/watch?v=-s0_lUoA-FE
[07:48:07] <tjb1> Id be happy with this - http://www.kickstarter.com/projects/andyrawson/ir-blue-thermal-imaging-smartphone-accessory?ref=card
[07:49:00] <s1dev> nice
[07:49:56] <RyanS> the narration is hilarious
[07:52:34] <tjb1> the resolution/speed isnt enough to make me want to buy it though
[07:54:00] <tjb1> Sounds like chinese with uk accent
[07:55:46] <RyanS> How much you reckon something like that is worth?
[07:56:02] <RyanS> 200k + ?
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[07:56:12] <RyanS> Probably more
[07:56:18] <tjb1> More than I will ever see in my life
[07:56:40] <DJ9DJ> moin
[07:57:19] <RyanS> is it mainly designed for cylindrical parts?
[07:58:11] <RyanS> I'm not sure how it would clamp square/rectangular parts although you can see it tapping a square block
[07:58:59] <tjb1> RyanS: http://25.media.tumblr.com/tumblr_mcb7aqOqeA1rhbgojo2_400.jpg
[07:59:02] <tjb1> Thats how.
[07:59:41] <RyanS> right..
[08:00:57] <tjb1> :)
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[15:40:49] <mikegg> what's the syntax for loading an ini file at the command line? halrun -i arduino.ini arduino.hal ...?
[15:45:30] <mikegg> i think it's halrun -i arduino.ini -f arduino.hal
[15:51:50] <mikegg> argg. halui pins still don't exist
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[16:19:37] <JT-Shop> what are you trying to do?
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[16:46:45] <mikegg> i think I got it
[16:47:05] <mikegg> trying to use an arduino to interface with a dual FDM extrusion head
[16:47:16] <mikegg> steppers, heating elements, thermistors etc
[16:48:27] <mikegg> I got the pyvcp to load
[16:48:42] <mikegg> now I need to hookup all the signals and see what I got...
[16:54:48] <mikegg> that brings up a good point - do ya'll know of any real-time analog in methods?
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[17:02:35] <pcw_home> what bandwidth?
[17:04:15] <mikegg> uhh, nothing fancy I suppose. would something like twice as fast as the servo thread be reasonable? what would that be, 1/50,000 ns
[17:04:34] <archivist> and number of channels
[17:04:40] <mikegg> two
[17:05:39] <pcw_home> 20 KHz sounds like base thread to me
[17:06:36] <pcw_home> base thread is more like 1 KHz to maybe 8 KHz (on a really fast machine)
[17:06:54] <pcw_home> servo thread I should say
[17:07:07] <mikegg> don't have my machine handy, and I can't remember off the top of my head. I don't think i changed them from the stock hm2 configs...
[17:07:41] <pcw_home> If you have HM2 and servo thread is fast enough , a V-F converter is an easy way
[17:08:37] <mikegg> oh, and then just use an encoder counter or something?
[17:09:23] <pcw_home> Yeah you use the encoder velocity signal
[17:10:04] <pcw_home> http://www.analog.com/en/analog-to-digital-converters/voltage-to-frequency-converters/ad7740/products/product.html
[17:10:20] <pcw_home> for example
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[17:12:18] <IchGuckLive> hi all B)
[17:12:46] <pcw_home> Or figure out a real time interface to an Arduino or something
[17:12:59] <mikegg> hah
[17:13:20] <andypugh> You probably don't need real-time for temperature control
[17:14:12] <mikegg> yeah, I know - but I think it might be easier.. cobble it all together with PID and be done
[17:14:13] <pcw_home> Yeah for temperature control a serial/USB interface might be OK
[17:14:29] <IchGuckLive> will the servo prices move down as there are more and more hobbyists going over
[17:15:36] <pcw_home> encoders and wiring will make servos more expensive the step motors
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[17:15:51] <pcw_home> s/the/than/
[17:16:29] <pcw_home> although the drive power stages are somewhat simpler for servos
[17:16:39] <IchGuckLive> i sugest around 250euros woudt be atchivable but on 600Eur now its not on me
[17:16:55] <pcw_home> (3 1/2 bridges instead of 4)
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[17:18:26] <IchGuckLive> i give up on the servo i got
[17:18:51] <_abc__> Did any of you guys try home carburuzation of broken mill bits to allow diamond resharpening?
[17:18:55] <IchGuckLive> no move within 5month 4weeks intesiv trying around 150 houres of wor k
[17:19:54] <IchGuckLive> _abc__: the reasharping of a good bit is on manafactur cheep but a new russion bit is cheeper
[17:20:26] <_abc__> *carburization. Ie stick in oven with carbon packing and let sit at 950C for a few hours.
[17:21:46] <_abc__> I shape my own bits using a diamond wheel sharpener with 3 axes. I use broken mills as raw material. I would like to make the bits I shape harder
[17:22:18] <_abc__> The bits i make are used to mill delicate things
[17:22:20] <IchGuckLive> http://www.wolf-beschichtung.de/
[17:22:48] <_abc__> Thanks
[17:23:49] <IchGuckLive> i use DLC3000 for punches this is 30times more effectiv
[17:24:14] <_abc__> Anyway I make bits with 0.1 to 0.5mm tips. I think I can make my metallurgy fit on top of an unmodified BIC lighter....
[17:24:45] <IchGuckLive> V -shape
[17:24:59] <_abc__> So large solutions will not help so much. I need very small.
[17:25:39] <IchGuckLive> 0.5mm mill bit is 3.90 so no sharping
[17:26:04] <_abc__> 3.90 ?
[17:26:09] <IchGuckLive> Euros
[17:26:28] <_abc__> Lol the ones I use are 45€
[17:27:11] <_abc__> Also they do not have the right shape for what I do.
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[17:28:52] <andypugh> It probably makes more sense to spend €3.90 on the wrong cutter than €45.
[17:29:46] <archivist> if the old endmill was through hardened why bother carburizing, just dont over heat when grinding
[17:30:51] <_abc__> Heh the 45€ ones are used as is for one thing and I take the broken ones and do my thing with them after that.
[17:31:13] <IchGuckLive> _abc__: shape photo please
[17:31:20] <_abc__> Archivist the tools are surface hardened only.
[17:32:08] <TekniQue> most hss drills you get nowadays only seem to be hardened at the tip
[17:32:24] <TekniQue> impossible to resharpen
[17:32:29] <_abc__> Shape i need is mostly V with angle adapted to the job, sometimes with cut off tip. Trapeze groove kind of.
[17:32:43] <TekniQue> once the tip is gone, there's no way to grind them sharp
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[17:33:09] <andypugh> TekniQue: Buy better drills?
[17:33:20] <IchGuckLive> _abc__: on you bit cost it is worth to get a dimond V-bit grinder
[17:33:22] <_abc__> Tek exactly. They have the gas nitrurizing / carburizing tuned for just surface hardening.
[17:34:22] <_abc__> Tek and you can resharpen them if you carburize them. This time, not surface only...
[17:34:39] <_abc__> Thus my questioning here.
[17:35:04] <IchGuckLive> http://stores.ebay.de/Werbematerialien-und-Gravierbedarf/Gravierstichel-/_i.html?_fsub=1129709018&_sid=129145738&_trksid=p4634.c0.m322
[17:35:26] <IchGuckLive> this are the ones you got
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[17:36:37] <_abc__> So ill take a hollow bolt, pack it with carbon and stick a mill bit into it, pack a little high heat plaster around the open and and heat it on a gas flame, with a K thermocouple also wedged in there. Has anyone tried this?
[17:37:17] <JT-Shop> you may be the first
[17:37:32] <_abc__> Meh I have a doubt.
[17:38:47] <_abc__> Any idea how hot i can get something not insulated on an open flame? Red heat for sure, but I need white?
[17:39:31] <IchGuckLive> if you need angels of tool grinding here is a pdf that holds all tools http://www.lehrer.uni-karlsruhe.de/~za685/cnc/cnctools.htm
[17:39:38] <IchGuckLive> tool 30 is your bit
[17:39:46] <andypugh> Oxy-acetylene welding rather relies on the fact that a flame can melt steel.
[17:40:14] <_abc__> I mean with gas in air :)
[17:40:24] <_abc__> Thanks ichgucklive
[17:41:07] <_abc__> And with somewhat reasonable gas consumption
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[17:42:05] <_abc__> Radiant heat loss at 1000C is high, it makes sense to shield the part or insulate it as much as possible
[17:42:10] <andypugh> I have hardened things with a MAPP gas blowtorch. How big is the whole assembly?
[17:42:15] <archivist> start from known metals
[17:42:51] <archivist> random old end mills could have any composition
[17:42:51] <_abc__> Andy probably 10mm hollow bolt, 20mm long or a little longer.
[17:43:04] <andypugh> A firebrick tent is probably called for.
[17:43:39] <_abc__> Archivist I agree, but I have faith in what the original mill bit maker choose.
[17:44:11] <archivist> was it hss,carbon steel or coated or wtf
[17:44:15] <andypugh> Don't spend too much time and effort, I anticipate failure.
[17:44:17] <_abc__> Andy yes, I was thinking of embedding the item halfway in the brick
[17:44:53] <_abc__> It was Tungsten Carbide I think but nobody knows for sure.
[17:45:37] <_abc__> I plan to coat the mill bit end with high heat clay to minimize air contact
[17:46:15] <archivist> I expect total failure with tungsten carbide
[17:46:23] <_abc__> Why?
[17:46:49] <_abc__> Its called that but it is not an insert
[17:46:58] <archivist> they are made from solid you should have no need to harden in any way
[17:47:01] <_abc__> It is all metal. The bit.
[17:47:31] <_abc__> So its just the usual marketing buzzword thing
[17:48:08] <_abc__> I expect good old hss high alloy with carburized outside
[17:48:12] <andypugh> Not solid carbide?
[17:48:23] <archivist> what colour are they, bright or grey
[17:48:47] <_abc__> Does not look like it. My diamond sharpener eats into it too easily
[17:49:07] <_abc__> Grey outside brighter inside
[17:51:15] <archivist> I would say hardening and tempering is a black art where you really need to know your starting point and metallurgy
[17:51:39] <_abc__> I had some older ones which were deep gray throughout. Those were sharpenable and kept for quite a while after that. I suspect solid carbide.
[17:52:11] <andypugh> http://www.cromwell.co.uk/publication_page_pdfs/1187/143.pdf
[17:52:18] <_abc__> Archivist i agree. But for the price of a bolt, i might find out.
[17:52:30] <andypugh> Are some coated HSS cutters, which might be what you have.
[17:52:44] <_abc__> I cant see pdf right now, am on a phone
[17:53:00] <andypugh> I don't think that you harden HSS by carburising. All the required elements are already in there.
[17:53:28] <_abc__> So why the different surface color?
[17:53:44] <andypugh> It's a coating.
[17:53:49] <andypugh> Mainly anti-welding
[17:53:58] <_abc__> Hmm
[17:54:20] <archivist> some coatings are for wear resistance
[17:54:25] <_abc__> And why is the sharpened bit not as tough?
[17:55:04] <archivist> no coating choose which resistance you no longer have
[17:55:41] <andypugh> Toughness is normally inversely proprtional to hardness.
[17:55:51] <IchGuckLive> _abc__: http://www.kirba.de/multilang/faq/faq-sch.htm
[17:55:58] <_abc__> Hmm so simply attempting to temper them as is might do the trick?
[17:56:17] <archivist> remember if you try to retreat a part the depth will vary and it will likely become brittle
[17:56:39] <_abc__> I will look at the links later when near a normal computer, thanks.
[17:56:43] <andypugh> Is it toughness you want, though?
[17:57:35] <_abc__> Tough, hard. I use the cutter in the same way as when new, it keeps much less.
[17:57:52] <_abc__> Loses edge way too fast
[17:58:19] <L84Supper> is cutting softer materials an option? :)
[17:58:39] <_abc__> Visibly too. I can see the bluntness after a few meters on a microscope. Initially it cuts great.
[17:58:46] <archivist> better cooling and lubrication
[17:59:13] <_abc__> I cut fiberglass copper bronze and aluminum with this
[17:59:16] <archivist> or in some cases move to no cooling
[17:59:48] <_abc__> The tests are usually in fr4 with copper
[18:00:18] <archivist> carbides can/will crack and fail if the coolant is intermittent
[18:00:25] <andypugh> Toughness is the resistance to fracture. Hardness is the resistance to deformation. Unless you are breaking the bits then toughness isn't what you want.
[18:00:58] <_abc__> Dry cutting, 30krpm, 1 to 3 mm/sec speed at say 0.2mm depth of groove
[18:01:21] <_abc__> This is fr4
[18:01:48] <archivist> there is a limited life cutting glass
[18:02:04] <archivist> 30k may be a bit too slow
[18:02:06] <_abc__> Andy i am not sure if the edge chips off first and is then rounded or if it is rounded
[18:03:03] <_abc__> The bad things happen after 2-3 linear meters. The same bit in the same machine same conditions lasts weeks
[18:03:41] <_abc__> 30krpm is the upper limit of this 2kW water cooled spindle's vfd
[18:03:54] <_abc__> Brb
[18:05:18] <_abc__> Re
[18:08:14] <_abc__> At 1mm/sec 30krpm and 0.1mm tip I get about 160:1 milling speed vs feed. This should be fine enough for what i do
[18:09:16] <_abc__> Also chip shape is the same as with original mill, so no shape problems. Just weird material issues.
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[18:35:20] <awallin> this just advertized on the finnish forum.. http://www.atomia.net/shop/index.php?route=common/home
[18:55:33] <IchGuckLive> awallin: http://shop.embedded-projects.net/index.php?module=artikel&action=gruppe&id=11
[18:57:37] <IchGuckLive> im off have a nice sunday
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[19:17:04] <DJ9DJ> namd
[19:25:17] <Aero-Tec> had my network go down for a bit, so not sure if anyone tried to contact me
[19:26:04] <Aero-Tec> new update, the new setup is getting close to 75% faster then it was before I started to tweak it
[19:26:43] <andypugh> You could, of course, have been finished by now with the old setup :-)
[19:26:46] <Aero-Tec> I had said 50%, but 75% is closer
[19:26:53] <Aero-Tec> lol
[19:27:03] <Aero-Tec> what fun would that have been
[19:27:18] <Aero-Tec> this is a reoccurring order
[19:27:20] <andypugh> And next time you can charge less.
[19:27:32] <Aero-Tec> every 2 to 3 months I have to do it
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[19:28:28] <Aero-Tec> I have learned so much by going through the effort of getting this going like I did
[19:28:50] <Aero-Tec> no chance of charging less
[19:29:05] <Aero-Tec> not charging enough from the start
[19:29:10] <Aero-Tec> filler work
[19:29:25] <archivist> I had a choice a few weeks ago, stop and sharpen cutter and re setup or struggle for just a few more gears, I struggled
[19:29:56] <Aero-Tec> there are some times when it gets to be a hard choice
[19:30:22] <Aero-Tec> trudge on or stop and recode or re tool or re what erver
[19:30:50] <Aero-Tec> if it was not a ongoing job I would not have put in the effort like I did
[19:31:14] <archivist> I think your real change would be to move to a servo system
[19:31:20] <Aero-Tec> there need to be a pay off some where in the job
[19:32:02] <Aero-Tec> I got a return in 2 ways
[19:32:37] <Aero-Tec> faster out put, and a real education on the inner working of the program and setting it up
[19:33:08] <andypugh> I think we all learned something. I am not sure cradek wanted to learn what he learned.
[19:33:25] <Aero-Tec> also got more familiar with the Gcode of EMC
[19:33:41] <Aero-Tec> what was that?
[19:34:07] <Aero-Tec> that X and B could not do a G64 move?
[19:34:50] <andypugh> I am unclear of the details, but I think he became disatisfied with the way blending works when axes have very different accelerations.
[19:35:41] <Aero-Tec> could it not just be tweaked?
[19:36:23] <archivist> tweaking maths is a bit hairy
[19:36:24] <Aero-Tec> so it was the difference in settings, as in steps and accel that made it not work?
[19:36:48] <Aero-Tec> I thought it was the X and B axis were not set up yet for blending
[19:37:49] <Aero-Tec> I have X and Z set up exactly how X and B were set up
[19:38:28] <Aero-Tec> so it has nothing to do with the difference in acceleration or steps or anything like that
[19:38:31] <andypugh> I am wary of putting words into someone else's mouth, or thoughts into their heads, but I think he found an issue when looking at the deeper details.
[19:39:17] <Aero-Tec> it is purely that X,B are not set up to do it and X,Z is
[19:39:18] <andypugh> I wonder if you could wind springs with a G33?
[19:40:03] <Aero-Tec> could if the spindle was turning and had a encoder on it and a good speed control
[19:40:22] <Aero-Tec> right now the spindle in just a tool holder
[19:40:35] <Aero-Tec> the wire is feed through it
[19:40:56] <skunkworks> andypugh: that is how I understood it also
[19:40:58] <andypugh> I did find myself pondering today if you could allow IJK words in a G1 block, to tell the system what the working radius was. (as you were discussing)
[19:41:38] <Aero-Tec> I set up Z and angular and wrapped, every thing was exactly the same from B and Z
[19:41:54] <skunkworks> I think mach as a place to give a 'radius' of the rotory for calculating feeds..
[19:42:32] <skunkworks> if I understand it correctly
[19:42:47] <andypugh> Aero-Tec: The fact that _your_ system now works doesn't mean that there isn't an underlying problem that can be seen when you look carefully enough.
[19:43:03] <Aero-Tec> true
[19:43:55] <Aero-Tec> one thing, the program complains about gcode Z axis being out side the limits of Z
[19:44:15] <Aero-Tec> but if you say continue anyways it works
[19:44:28] <Aero-Tec> the B axis did not do that
[19:44:59] <Aero-Tec> but then again the B axis did not work for blended moves
[19:46:02] <Aero-Tec> also, even tho Z is set up to be angular and wrapped, it appears if is not
[19:46:10] <Aero-Tec> it is not wrapped for sure
[19:52:32] <andypugh> I just looked at the code, and it only even looks for the WRAPPED_ROTARY parameter in the [AXIS_3], [AXIS_4] and [AXIS_5] block. Which seems a bit short-sighted.
[19:54:31] <andypugh> You can only have an indexer on A, B and C too.
[19:55:13] <JT-Shop> hmmm I'm getting a gouge error but the code runs fine :(
[19:55:16] <Aero-Tec> 10.7.2 Linear Motion at Feed Rate - G1
[19:55:17] <Aero-Tec> (a) For linear motion at feed rate (for cutting or not), program G1 X~ Y~ Z~ A~ B~
[19:55:19] <Aero-Tec> C~, where all the axis words are optional, except that at least one must be used. The G1 is
[19:55:21] <Aero-Tec> optional if the current motion mode is G1. This will produce co-ordinated linear motion to
[19:55:22] <Aero-Tec> the destination point at the current feed rate (or slower if the machine will not go that fast).
[19:55:24] <Aero-Tec> (b) If G16 has been executed to set a polar origin then linear motion at feed rate to a point
[19:55:26] <Aero-Tec> described by a radius and angle G0 X~ Y~ can be used. X~ is the radius of the line from
[19:55:28] <Aero-Tec> the G16 polar origin and Y~ is the angle in degrees measured with increasing values
[19:55:29] <Aero-Tec> counterclockwise from the 3 o'clock direction (i.e. the conventional four quadrant
[19:55:31] <Aero-Tec> conventions).
[19:55:33] <Aero-Tec> Coordinates of the current point at the time of executing the G16 are the polar origin.
[19:55:34] <Aero-Tec> It is an error if:
[19:55:36] <Aero-Tec> ¨ all axis words are omitted.
[19:55:38] <Aero-Tec> If cutter radius compensation is active, the motion will differ from the above; see Cutter
[19:55:39] <Aero-Tec> Compensation. If G53 is programmed on the same line, the motion will also differ; see
[19:55:41] <Aero-Tec> Absolute Coordinates.
[19:55:43] <Aero-Tec> from the mach manual
[19:55:59] <Aero-Tec> it is the same for G0
[19:56:19] <Aero-Tec> not sure if that helps
[19:56:38] <Aero-Tec> never used G16 in mach
[19:56:49] <Aero-Tec> I never
[19:57:24] <andypugh> That's not the same thing
[19:57:47] <Aero-Tec> JT-Shop: what code are you testing?
[19:57:56] <andypugh> You can use polar coordinates in LinuxCNC, but I am not sure anyone does.
[19:58:16] <JT-Shop> it's just a radius that errors out if the Z is not a positive value
[19:58:42] <Aero-Tec> I never heard of a radius option in mach with G1 or G0
[19:59:21] <andypugh> http://linuxcnc.org/docs/devel/html/gcode/overview_pl.html#_polar_coordinates
[19:59:35] <JT-Shop> http://pastebin.com/mtYr7Vie
[19:59:38] <Aero-Tec> in Lathe you can set radius or diameter mode
[20:00:12] <Aero-Tec> not sure if one can change it by Gcode in mach
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[22:03:30] <DJ9DJ> gute nacht
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[22:31:05] <petitbrochet> il ya quelqu'un
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[22:48:50] <skunkworks> http://www.youtube.com/watch?v=GK4rbD6C17o
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[22:54:36] <andypugh> That actually looks rather handy/useful
[22:56:28] <andypugh> It doesn't necessarily do anything that you can't do with ngcgui, but perhaps a little more turnkey
[22:57:43] <skunkworks> right
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[23:55:50] <JT-Shop> takes to long to watch
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[23:57:45] <Tom_itx> it is kinda slow ehh?