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[00:06:57] <_methods> just convert it to dxf or dwg and have your way with it
[00:07:53] <JessicaRN> what I'm trying to do is reduce cutting time when processing a .plt file on my laser cutter.
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[00:08:28] <JessicaRN> it currently cuts parts willy-nilly instead of tracking down the cut in a logical fashion
[00:09:47] <JessicaRN> so, I'm looking for a utility to re-write the plt file in an optimized manner where after cutting a path the laser jumps to the next closest path to it's current position
[00:10:00] <JessicaRN> capish?
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[00:16:14] <_methods> like i said i'd convert it to a dxf or dwg and work with it that way
[00:16:31] <_methods> your cutter only works with plt?
[00:16:56] <JessicaRN> no, but that is the easiest way to generate output.
[00:17:23] <JessicaRN> i usually get corel files, and I can easily dump them out to .plt files.
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[00:18:06] <_methods> what nesting software?
[00:18:27] <JessicaRN> the problem is, if my image is made up of 2000 paths there doesn't seem to be any logic to the order they are cut.
[00:19:06] <JessicaRN> so the laser head jumps all over the job while cutting. it slows the whole process down
[00:19:07] <_methods> you can't modify your pathing?
[00:19:16] <_methods> i'm sure it does lol
[00:20:04] <_methods> well what toolchain are you using that might help someone in here identify a better solution for you
[00:20:24] <JessicaRN> If I can modify it, I sure don't know how. I've read that there are apps that will read the generated plt file and reorder the shapes therein in order in optimize cutting speed.
[00:21:50] <JessicaRN> well, for these images I'm using corel. i open a bitmap in corel, trace it, and output the trace to a .plt file
[00:21:59] <JessicaRN> my laser can read that
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[00:24:14] <zeeshan> http://i.imgur.com/lx3lint.jpg
[00:24:15] <zeeshan> :-)
[00:24:49] <JessicaRN> door froze shut?
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[00:28:37] <zeeshan> i guess so lol
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[00:55:31] <LeelooMinai> It's a safety lock - you take it home so no one can open the door any more
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[01:02:10] <zeeshan> LeelooMinai: less talk more CNC
[01:02:11] <zeeshan> !
[01:02:23] <LeelooMinai> Watching music video now:)
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[01:02:38] <zeeshan> im watching predestination
[01:02:41] <zeeshan> interesting so far
[01:03:09] <LeelooMinai> Brutal playing is brutal
[01:07:35] <malcom2073> So, which mesa board combo do I need to run a servo driven knee style CNC? 5i25 + 7I77?
[01:07:55] <Tom_itx> probably
[01:08:05] <Tom_itx> is the 7i77 a servo board?
[01:08:21] <malcom2073> seems like that's the servo daughter for the 5i25
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[01:08:41] <Tom_itx> they had a stepper board and a servo one for it i know
[01:09:11] <Tom_itx> get the kit
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[01:12:50] <malcom2073> I need to verify these servo cards use analog input for their control. The system used to run EMC through a servo2go isa card... witing to see if the guy can find his notes on how it was hooked up heh
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[01:18:02] <malcom2073> Yep, they're 10v +/- signal, awesome
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[01:20:00] <zeeshan> 7i77 + 5i25
[01:20:03] <zeeshan> 5i25 for pci
[01:20:07] <zeeshan> 6i25 for pci-e slot
[01:20:19] <zeeshan> 7i77 for analog output to servo drive
[01:20:42] <malcom2073> I think I want to stick with pci
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[01:33:36] <XXCoder> jeez, that kickstarter is at 95,260 supporters and 3.7 million now
[01:33:45] <XXCoder> and only been 4 days
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[01:45:29] <LeelooMinai> Damn, something weird is happening to Canadian dollar - seems like every day I buy stuff from internet in US dollars I pay more:)
[01:45:57] <XXCoder> they have time machine and adjust according as soon as you plan to buy something ;)
[01:46:15] <LeelooMinai> IN the past it was more or less similar...
[01:46:40] <zeeshan> yea its like .78 cad = 1 usd
[01:46:46] <zeeshan> i started buying stuff locally
[01:47:12] <XXCoder> thanks for warning I'll wait on canada buys ;)
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[01:47:31] <zeeshan> i meant
[01:47:37] <zeeshan> .78 usd = 1 cad
[01:47:39] <LeelooMinai> Hmm, just read that there is some situation with oil prices that caused this
[01:47:58] <zeeshan> yea and bank of canada dropped interest rate unexpectingly
[01:48:02] <LeelooMinai> Wonderful
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[01:48:33] <LeelooMinai> Was just going to buy nice VFD:)
[02:00:34] <_methods> some situation with oil lol
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[02:01:24] <_methods> i wonder if that's vladimir putin calls it hehe
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[02:16:55] <XXCoder> splitville
[02:17:00] <_methods> hehe
[02:17:03] <_methods> it's the weekend
[02:17:13] <XXCoder> split pea soup
[02:17:14] <PetefromTn_> lovely..
[02:17:14] <_methods> the skript kiddiez are actin up
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[02:21:21] <XXCoder1> lovely
[02:21:33] <_methods> das splitz
[02:22:25] <Jymmmm> IT'S WORKING!!! IT'S WORKING!!! Go my minions, continue to do my bidding!!!
[02:22:30] <XXCoder1> the split compels you
[02:22:46] <_methods> topic Jymmmm is still gay
[02:22:55] <_methods> oops
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[02:23:13] <Jymmmm> _methods: You knows whats worse?
[02:23:23] <_methods> no what?
[02:23:31] Jymmmm is now known as MrAsshole
[02:23:37] <PetefromTn_> huh Jimmy's gay?
[02:23:44] <_methods> it's tru
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[02:23:48] <MrAsshole> _methods: Me. You know whats worse than that?
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[02:23:58] <_methods> hehe no what?
[02:24:05] <PetefromTn_> figures...
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[02:24:19] <_methods> hold on i'm trying to take over freenode
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[02:24:29] -!- mode/#linuxcnc [+o MrAsshole] by ChanServ
[02:24:31] <Tom_itx> it's the weekend! jymmm is uncloaked!
[02:24:37] <MrAsshole> _methods: Me with ops =)
[02:24:38] <PetefromTn_> first freenode....then.....THE WORLD!!
[02:24:43] <_methods> oh noes
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[02:25:13] <XXCoder1> ops = over-powered shit ;)
[02:25:36] * MrAsshole sets mode: +pink-panties _methods
[02:25:42] <_methods> hahaha
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[02:25:47] <XXCoder1> lol
[02:25:48] <_methods> you got my pics?
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[02:25:58] -!- mode/#linuxcnc [-o Jymmm] by Jymmm
[02:26:15] <Jymmm> _methods: Yes, some imagines are just burned in
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[02:26:26] <Jymmm> and can never be forgotten
[02:26:26] <_methods> sets mode +O _methods
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[02:27:54] * _methods trout slaps _methods
[02:28:01] <_methods> oops
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[02:34:02] <Tom_itx> zeeshan|2 were you planning to connect that board directly to the fpga pins?
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[02:35:19] <_methods> heheh
[02:35:23] <_methods> ahh the games
[02:35:38] <Tom_itx> _methods put that friggin plug down now!
[02:35:45] <_methods> no kidding
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[02:36:29] <Tom_itx> ok it looks like i lose 4 outputs with the S board over the regular one
[02:36:48] <PetefromTn_> s board?
[02:36:51] <Tom_itx> rather they are remapped to pwm with dir and enable
[02:36:59] <Tom_itx> 7i47 7i47S
[02:38:36] <Tom_itx> question is if it will overload the fpga if i use stepgen, pwmgen, quadrature, sserial, ioporttag, ledtag functions
[02:39:01] <_methods> that's a pcw question for sure lol
[02:39:10] <Tom_itx> i know
[02:39:18] * _methods goes back to dismantling freenode
[02:39:21] <Tom_itx> i don't know the xilinx warnings well enough to tell
[02:39:33] <PetefromTn_> well actually I could answer it....but I would be WRONG!
[02:39:51] <Tom_itx> it would be a timing issue
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[02:40:17] <_methods> or not enough timers issue lol
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[02:40:29] <Tom_itx> however it looks like this little board uses stepgen instead of pwmgen for the pwm signal
[02:40:56] <Tom_itx> so i may not need pwmgen
[02:41:39] <_methods> so if you're using one of those mesa boards do you have to worry about jitter?
[02:42:17] <Tom_itx> if you load too many hostmot2 functions in a bitfile you can get timing errors
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[02:42:38] <Tom_itx> _methods, no not so much
[02:42:48] <Tom_itx> you use the servo thread for those cards
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[02:42:52] <_methods> so you can get away with using a laptop?
[02:42:59] <_methods> and a mesa card
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[02:43:08] <Tom_itx> i dunno, depends on the laptop i suppose
[02:43:18] <Tom_itx> generally not, i don't know anybody using one personally
[02:43:25] <_methods> i was going to try with one
[02:43:35] <Tom_itx> the parport may not be compatible either
[02:43:50] <_methods> i ordered a mini-pcie to pcie card
[02:43:53] <_methods> with cable
[02:44:01] <_methods> to break out the mini pcie slot on the laptop
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[02:44:51] <_methods> i'm sure it won't work but i'll give it a shot
[02:45:21] <Tom_itx> you can always send me the board if it doesn't
[02:45:22] <_methods> would be nice to put some old laptops to use though for linuxcnc
[02:45:32] <_methods> haha i plan on using the board
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[02:46:06] <_methods> if my laptop experiment fails i'll just use a real computer lol
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[03:06:10] <Tom_itx> Q. when you load the config line config=num_stepgens=x where do you specify the type of output "step_type" ?
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[03:06:24] <Tom_itx> and what is the default?
[03:06:40] <Tom_itx> i assume it is step/direction since i didn't specify one
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[03:14:09] <Tom_itx> what ini section do you put spindle control parameters?
[03:15:03] <Jymmm> FAAAAARK... The battery holder doesn't accept protected cells =(
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[03:34:26] <pcw_home> Tom_itx: step type is a parameter
[03:35:08] <Tom_itx> some of those parameters are specified in the axis sections though
[03:35:25] <Tom_itx> this board uses a stepgen signal to drive the adc
[03:35:40] <Tom_itx> for spindle control
[03:36:22] <Tom_itx> so i could put the step_type as part of the stepgen parameters in the config line?
[03:36:42] <Tom_itx> pretty sure the one i need it the default anyway
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[03:37:21] <pcw_home> its a hal parameter so set with a setp statement in the hal file
[03:37:29] <Tom_itx> ahh ok
[03:37:44] <Tom_itx> do you know what the default type is?
[03:37:46] <Tom_itx> 0?
[03:37:58] <pcw_home> step/dir
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[03:38:01] <Tom_itx> ok
[03:38:06] <Tom_itx> that's 0 i think
[03:38:24] <Tom_itx> so i don't really even need to specify it
[03:39:10] <Tom_itx> however i specify the stepspace and steplen for each axis in the axis sections.
[03:39:24] <Tom_itx> where would i specify it for the spindle?
[03:39:30] <pcw_home> no, but for rate controlled spindle DAC you may want quadrature mode
[03:39:47] <Tom_itx> it says it want's velocity mode
[03:40:11] <pcw_home> sure (thats a parameter as well)
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[03:40:46] <Tom_itx> they have an example hal file but it's for the software stepgen. i'm sure the hostmot2 one is similar
[03:41:14] <Tom_itx> ie setp stepgen.5.stepspace x
[03:41:16] <pcw_home> note that the ini sections are mostly pretty arbitrary (just a convenience) so you can make up your own sections
[03:42:04] <Tom_itx> did you see my question about hostmot2 components in the bit file above?
[03:42:12] <Tom_itx> i wonder if that's too many for it
[03:42:33] <Tom_itx> with stepgen, pwmgen, quadrature, sserial etc in it
[03:43:00] <Tom_itx> i don't actually think i need pwmgen now
[03:43:06] <Tom_itx> so it should be ok
[03:43:36] <pcw_home> no, you can put pretty much anything you want until you run out of space
[03:43:53] <Tom_itx> i got a timing error on one i did early on
[03:44:04] <Tom_itx> that's why i was wondering
[03:44:17] <Tom_itx> i don't recall the exact error
[03:44:42] <pcw_home> The compiler reported that it did not meet timing?
[03:44:47] <Tom_itx> yes
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[03:44:58] <Tom_itx> i wound up changing it
[03:45:09] <Tom_itx> i think i removed pwmgen since i wasn't using it
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[03:46:26] <Tom_itx> i see the 7i47s uses 4 of the io for the spindle signal
[03:46:39] <pcw_home> you can often fix this by tweaking the build parameters (and some timing errors are bogus. it think most ucf files have fixes for bogus error reports but not all)
[03:47:01] <pcw_home> yes PWM/DIR/ENA/SPARE
[03:47:17] <pcw_home> so 4 of the TX lines are used
[03:47:26] <Tom_itx> well if i did something like that which i don't think i'll need to i may get you to look it over before i loaded it to the card
[03:47:41] <Tom_itx> yeah i saw that
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[03:48:09] <pcw_home> also are you optimizing for speed or area?
[03:48:15] <Tom_itx> speed
[03:48:22] <Tom_itx> you warned me about that
[03:48:38] <pcw_home> ok it might be worth looking at
[03:49:01] <Tom_itx> i don't have the hardware right now anyway, just preparing
[03:49:05] <pcw_home> for which card?
[03:49:19] <Tom_itx> something zeeshan|2 is sending me
[03:49:28] <Tom_itx> cnc4pc spindle card
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[03:50:00] <pcw_home> I mean for whcich card did you get a timing error?
[03:50:04] <Tom_L> http://www.cnc4pc.com/Store/osc/product_info.php?cPath=25&products_id=58
[03:50:07] <Tom_itx> oh
[03:50:17] <Tom_itx> it was on the old 7i43 7i47 combination
[03:50:32] <Tom_itx> i'm not using the 7i43 anymore
[03:50:44] <Tom_itx> it's pretty well toast
[03:50:53] <pcw_home> probably less likely on a 7I90
[03:51:01] <Tom_itx> yeah
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[03:51:13] <Tom_itx> it's got a faster clock doesn't it?
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[03:51:50] <pcw_home> Yes Clocklow is 100 MHz, ClockHigh is 200 MHz
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[03:52:05] <Tom_itx> i was just looking at the 7i47S as a 2nd card but i don't think i need it
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[03:52:39] <Tom_itx> i'm keeping the one you just sent as a spare since i fixed the old one
[03:53:34] <pcw_home> Spartan 6 CPU clock is 100 MHz also for things that have CPUs (sserial, resolver, serial,Ethernet)
[03:54:35] <pcw_home> looking forward to using Artix chips, Clocklow/CPU clock will be 200 MHz
[03:55:47] <Tom_itx> you may have to start changing your board designs for those
[03:56:32] <pcw_home> They have ADCs built in which is nice
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[04:00:44] <Tom_itx> seems i may be able to use the stock sherline speed control for this
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[04:09:47] <Tom_itx> pcw_home, what boards are you gonna start putting those in?
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[04:10:49] <pcw_home> higher end at first (3x20 replacement with USB3 interface is one planned)
[04:11:02] <LeelooMinai> pcw_home: Is Artix supposed to be replacement for Spartans or you just want to move to more powerful FPGA?
[04:11:32] <pcw_home> its effectively spartan 7
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[04:12:18] <LeelooMinai> Someone just mentioned it in #fpga so I was wondering. That is someone wrote that Spartan 6 is phased out and I was wondering what is the replacement.
[04:13:09] <pcw_home> Nonsense spartan 6 will be available for probably 10 or more years
[04:13:30] <pcw_home> we have 0 issues getting Spartan 2
[04:13:34] <LeelooMinai> Right, well, I thought it was weird - it seems to be very popular right now.
[04:14:01] <pcw_home> and most Artix chips are barely available now
[04:14:49] <pcw_home> I think you can still get 4000 series Xilinx (from the late 80s?)
[04:14:57] <zeeshan|2> hi tom
[04:15:04] <Tom_itx> z
[04:15:11] <LeelooMinai> lol, I did not even know there were FPGAs in 80s
[04:15:13] <zeeshan|2> i think you only give it step, gnd, cw and ccw
[04:15:14] <zeeshan|2> wires
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[04:15:32] <zeeshan|2> and it controls the relays and stuff
[04:15:33] <zeeshan|2> accordingly
[04:15:43] <Tom_itx> zeeshan|2, if it feed the relay with cw ccw, what's the point of both signals?
[04:15:51] <Tom_itx> one will be active by default
[04:15:55] <zeeshan|2> oh it says
[04:15:57] <zeeshan|2> en and dir
[04:15:59] <zeeshan|2> nm
[04:16:09] <zeeshan|2> relay 1 on/off enable signal
[04:16:14] <zeeshan|2> relay 2 dir signal
[04:16:24] <Tom_itx> were you gonna feed it straight from the fpga?
[04:16:29] <zeeshan|2> i didnt have fpga
[04:16:34] <zeeshan|2> i had a probotix breakout board
[04:16:37] <Tom_itx> oh
[04:16:47] <zeeshan|2> was gonna feed directly from parallel port pretty much
[04:16:54] <Tom_itx> well part of those signals are opto isolated but not all
[04:17:03] <zeeshan|2> pretty sure
[04:17:05] <zeeshan|2> this board is isolated
[04:17:07] <zeeshan|2> so that isnt a prob
[04:17:09] <Tom_itx> unless i read it wrong
[04:17:20] <pcw_home> Xilinx 2000 series was 1985, 4000 series was 1991
[04:17:27] <zeeshan|2> Opto - isolated output signals. The analog and CW and CCW signals are optically isolated, so this board can be used with drives that make grounds common with the mains that drive the VFD or motor
[04:17:34] <Tom_itx> i got an old old xininx board
[04:17:53] <Tom_itx> ahh ok
[04:18:06] <Tom_itx> what about enable?
[04:18:57] <Tom_itx> output signals...
[04:19:07] <pcw_home> probably either CW or CCW asserted is enable
[04:19:15] <zeeshan|2> yea
[04:19:18] <zeeshan|2> as long asits getting a signal
[04:19:20] <zeeshan|2> it spins one way
[04:19:23] <zeeshan|2> and vise versa
[04:19:24] <pcw_home> (like VFDs with FOR and REV)
[04:19:27] <Tom_itx> haha xc95108
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[04:20:01] <pcw_home> thats a CPLD
[04:20:10] <pcw_home> a 5V one at that
[04:20:32] <pcw_home> 108 macrocells
[04:20:37] <Tom_itx> http://tom-itx.no-ip.biz:81/~webpage/temp/xilinx1.jpg
[04:20:50] <Tom_itx> i played with that a bit a loooonnng time ago
[04:21:21] <Tom_itx> it's got a jtag on it i could still use
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[04:22:02] <Tom_itx> kinda cumbersome for that
[04:23:43] <pcw_home> we still use those on one of our older cards (they have 48 mA low side drive, and we have a card that emulates 4x beefy 8255s)
[04:24:23] <pcw_home> (96 I/O using 2x 95108s)
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[04:24:59] <pcw_home> the 5V parts are hard to get now and expensive now
[04:26:47] <zeeshan|2> http://www.mini-lathe.com/kx3/bellows.jpg
[04:26:52] <zeeshan|2> i really dislike these kind of way covers :/
[04:26:54] <zeeshan|2> such a pain to clean
[04:27:05] <pcw_home> ahh that DB25 is a parallel port JTAF wiggler connection
[04:27:12] <pcw_home> JTAG
[04:27:18] <XXCoder1> zee I saw one machine that has those, AND another plastic sheet covering it
[04:27:28] <XXCoder1> just flat sheet thats enough to make cleaning easy
[04:27:28] <zeeshan|2> ah
[04:28:15] <Tom_itx> pcw_home yeah
[04:28:32] <Tom_itx> you can disconnect it from the board and use it externally as well
[04:28:53] <zeeshan|2> http://www.maschinensucher.de/ma2/bilder/MIKRON-WF21C/1851330-2.jpg
[04:28:58] <zeeshan|2> im missing that Z axis cover
[04:29:02] <zeeshan|2> its like 400 bux to replace :/
[04:29:09] <XXCoder1> ouch
[04:29:14] <zeeshan|2> im thinking of just bolting on a piece of plastic sheet
[04:29:14] <zeeshan|2> lol
[04:29:19] <zeeshan|2> for now
[04:29:42] <LeelooMinai> You can use an old accordeon too
[04:29:44] <Tom_itx> pcw_home, the schematic for those are up there somewhere
[04:30:21] <pcw_home> wonder if it got crumpled up at some point
[04:30:48] <Tom_itx> http://tom-itx.no-ip.biz:81/~webpage/xilinx/digilent/
[04:31:31] <pcw_home> Tom_itx: remind me next week and I'll send you a couple PCBs for an improved type 3 JTAG interface
[04:31:48] <Tom_itx> you don't recall what chips are on it?
[04:32:13] <pcw_home> I think a HC14 and a HC125
[04:32:18] <Tom_itx> k
[04:32:24] <Tom_itx> smt?
[04:32:26] <pcw_home> (surface mount)
[04:32:30] <Tom_itx> i probably have some somewhere
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[06:10:49] <Computer_Barf> Has anyone here ever milled stone? Some things like jasper look interesting
[06:11:27] <cradek> I've cut soapstone to make molds for pewter pours, but I doubt that counts, it's very soft
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[06:20:17] <XXCoder1> interesting project
http://www.essentialscrap.com/eink/
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[07:33:11] <archivist> zeeshan|2, you can fold that yourself
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[07:38:54] <Computer_Barf> cradek: I think my biggest problem with soapstone is that its so soft that I can imagine damaging it in use
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[07:40:07] <Computer_Barf> I think it would be really cool to find some decently attractive, medium to dark grey stone that I could mill small objects from. It would be awsome if I could find and source something in Colorado
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[07:51:39] <SpeedEvil> https://en.wikipedia.org/wiki/Granite,_Colorado
[07:52:56] <SpeedEvil> The upper Arkansas River valley, including the area around Granite, is hemmed in between high, sheer rock outcroppings of buff/pink-colored Precambrian granite.
[07:54:37] <SpeedEvil> http://www.superpages.com/yellowpages/C-Quarries/S-CO/
[07:54:43] <SpeedEvil> doesn't seem like a shortage
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[08:10:00] <Deejay> moin
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[10:23:35] <Brunetty> Hi. is possible install 2.6 from network?
[10:24:21] <Brunetty> Or only via DVD and or USB
[10:24:47] <archivist> do you have 2.5/whatever installed, then upgrade
[10:25:04] <Brunetty> It is a clear PCMCIA
[10:25:38] <archivist> PCMCIA is an interface standard, not really relevant
[10:25:53] <archivist> is this a laptop
[10:27:09] <Brunetty> I is a think motheboard
[10:30:17] <Brunetty> can't access to the hardware, only via network cable.
[10:31:28] <archivist> I think you are not telling us something important
[10:32:15] <Brunetty> You ned important thinks?
[10:34:03] <Brunetty> Searching solutions
[10:34:25] <archivist> people upgrading normally have access to whatever is in the machine
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[10:37:49] <Brunetty> This is a closed boxcontrol.
[10:41:59] <archivist> what no screwdriver
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[10:44:24] <Brunetty> I can install Debian via network
[10:44:58] <Brunetty> But this is a Hibrid?
[10:45:30] <Brunetty> shit! i have industrial machinery
[10:46:04] <archivist> nothing wrong with industrial
[10:46:30] <archivist> just they dont make things easy to change
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[11:04:50] <Bushman> Brunetty: is there USB?
[11:05:22] <Bushman> there should be USB even on industrial machine
[11:06:32] <Brunetty> yes but is in the middle off hardware, difficult to access and upgrade.
[11:06:46] <archivist> USB is terrible for realtime too
[11:06:49] <Bushman> what machine is this?
[11:06:55] <Bushman> name? model?
[11:07:07] <Brunetty> The cuestion is
[11:07:19] <Brunetty> Is possible install 2.6 from network?
[11:07:39] <Brunetty> I have 2.6 here in my network
[11:07:39] <Bushman> short answer: no.
[11:07:55] <archivist> you need some OS to load something over the network....
[11:07:55] <Bushman> long answer: yes but you have to do it in complex stages
[11:08:32] <Bushman> Brunetty: what machine is this?
[11:08:46] <Bushman> name and model please
[11:10:18] <Bushman> Brunetty: well?
[11:10:30] <Brunetty> Complex stages is referer to download the netboot from debian and next install from this?
[11:10:41] <Bushman> Brunetty: yes.
[11:10:59] <Bushman> why can't just tell us what the machine name and model is?
[11:11:09] <Bushman> *why can't you
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[11:12:12] <Bushman> i'd really like to help you but if you can't provide me with basic information i really can't
[11:12:20] <Brunetty> jeje
[11:12:40] <Brunetty> Im testing
[11:12:49] <Brunetty> If work i can pass info
[11:13:13] <Bushman> then it's going to be to late.
[11:14:10] <Bushman> also don't ask me to help you with netboot or rest of the install process done in stages... i never done it this way.
[11:14:56] <Brunetty> I done with some debian machines, but this have a different configuration.
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[11:16:55] <Brunetty> ok. go test and lost daytime
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[11:50:03] <Bushman> dear god. please make it that Brunetty's machine has a service USB port available under small panel on the side of his machine that would let him install LinuxCNC Ubuntu distribution but he won't notice it untill 4 days of struggle with netboot installs, recompiling RTAI kernels and broken dependencies while installing axis manually because he didn't want to tell us the name of his machine. thanks in adv
[11:50:09] <Bushman> ance, AMEN!
[11:53:29] <archivist> or undo the box
[11:54:32] <archivist> the pre conceived idea, I am doing it this way type of questioner, are hard to help
[11:55:37] <Bushman> yea
[11:56:23] <Bushman> i'm a hard person to help but i quite often realise that if i won't provide those more specific details of my situation people won't be willing to help me anymore
[11:56:46] <Bushman> so i often have to admit i've f***ed up XD
[11:57:47] <Bushman> on somewhat related note, i've realised yesterday evening that my lead nut clamp design has a major flaw
[11:58:22] <Bushman> which i'm going to attempt to fix today...
[11:59:02] <Bushman> ... posibly by redoing the whole thing with another idea which might be more or less better or as bad as the current one lol
[11:59:19] <Bushman> https://grabcad.com/library/clamp-for-nut-for-trapezoidal-lead-screw-1
[12:00:24] <Bushman> i've sliced the nut in to in hope to twist one half of it to counter it against the other one... but i've forgot that only one of them is actually fixed to the clamp with this small bolt on the side
[12:00:50] <Bushman> i need to rething this design
[12:01:05] <Bushman> *rethink
[12:02:15] <Bushman> or maybe not... i'm not sure anymore what's gonna happen
[12:02:39] <Bushman> archivist: you familar with mechanical engineering?
[12:03:00] <Bushman> cause i have to admit i'm a compleet noob :P
[12:03:45] <archivist> erm....a bit, I have a "few" books, made many things, fixed lots
[12:04:13] <Bushman> can you look at this thing?
[12:04:17] <Bushman> https://grabcad.com/library/clamp-for-nut-for-trapezoidal-lead-screw-1
[12:04:20] <archivist> old enough to have experience ,of cockups :)
[12:04:24] <Bushman> does it make sense?
[12:05:05] <archivist> mostly but, adjustment
[12:06:19] <Bushman> please elaborate?
[12:06:55] <archivist> I was just ruminating on the tapered spindle bearing method and how that could be applied to the screw problem
[12:07:34] <archivist> have you seen taper lock pulleys?
[12:08:08] <Bushman> i'm not sure what those are or wheret i've seen them
[12:09:51] <Bushman> *whether
[12:09:53] <archivist> http://www.fptgroup.com/fenner.asp?title=Taper-Lock-Bushes&pageid=2668
[12:10:09] <archivist> thread the inner
[12:10:23] <archivist> adjust till no play
[12:10:47] <archivist> will always be concentric to the shaft
[12:12:21] <Bushman> i'm still trying to understand what's hepening there
[12:12:25] <Bushman> *happening
[12:12:33] <Bushman> ugh! i can't even english today
[12:13:10] <archivist> I can tyop anytime
[12:13:15] <Bushman> so basically it's a tapered cylinder
[12:13:34] <Bushman> and when i pull it in with bolts it clamps shut on the shaft
[12:14:03] <Bushman> and you were thinking about using this method for lead screw nuts
[12:14:08] <archivist> yup
[12:14:13] <Bushman> cool ;
[12:14:15] <Bushman> ;]
[12:14:34] <Bushman> is the general idea patented?
[12:15:26] <archivist> dont think so, been around for rather a long time, is/was also used to adjust spindle bearing clearance
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[12:15:48] <Bushman> hmm...
[12:16:12] <Bushman> that should be fairly easy to model... not so easy to machine for me as i don't have lathe
[12:16:35] <archivist> my hobbing machine has the bush threaded to pull/push it in and tighten
[12:16:56] <Bushman> define bush
[12:17:23] <archivist> the wear part made of a bronze/brass
[12:17:40] <Bushman> oh, like a friction bearing
[12:17:47] <archivist> yes
[12:17:52] <Bushman> ok
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[12:19:35] <archivist> this page has one
http://www.lathes.co.uk/southbend9-inch/page7.html
[12:21:25] <Bushman> yea, the all greasy one :P
[12:22:33] <archivist> so you get the nut locked into the holder and adjustable
[12:22:48] <Bushman> i'm modeling it right now :P
[12:30:57] <archivist> another version using screws
http://www.lathes.co.uk/drummondparts/
[12:31:52] <archivist> I had to make that type to repair one
[12:33:33] <Bushman> lovely
[12:34:51] <Bushman> i should move my ass and try to fix my lathe :P
[12:35:17] <archivist> is it fixed yet?
[12:35:29] <Bushman> nope
[12:35:31] <Bushman> :P
[12:35:47] <archivist> a lathe or three are essential
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[12:40:25] <Bushman> the first thing i'm going to turn on my lathe when it's gonna be somewhat operationall is going to be more pulleys lol
[12:41:11] <Bushman> long time ago i made a mistake of buying some old, completely ruined lathe...
[12:42:17] <Bushman> the chuck was not ment for this lathe but the guy selling it to me told me it was from this one and i didn't check.
[12:42:29] <Bushman> i was young and foolish :P
[12:42:37] <archivist> starting with an older one is not so bad, you may learn more about light machining
[12:43:48] <archivist> my first was a zyto
http://www.lathes.co.uk/zyto/
[12:49:38] <Bushman> i already know something about light machining
[12:49:45] <Bushman> i'm not an expert tho
[12:49:58] <Bushman> i was working as a CNC operator for some time
[12:50:11] <Bushman> tho the lathe was older than coal
[12:50:37] <Bushman> the "computer" was from 1973
[12:50:59] <Bushman> programmed with knobs and switches
[12:51:07] <archivist> a rattly old lathe has to be used gently or it chatters
[12:51:14] <Bushman> but the g code was pretty much the same
[12:52:07] <Bushman> since i don't have access to other lathes to bootstrap me i'm doing all the stuff the ghetto way
[12:52:13] <Bushman> wanna see the beast?
[12:52:15] <Bushman> XD
[12:52:36] <archivist> yes
[12:53:25] <Bushman> this is how i got it:
[12:53:28] <Bushman> http://bushman.pl/photos/misc/lathe/IMG_0103.JPG
[12:53:34] <Bushman> http://bushman.pl/photos/misc/lathe/IMG_0104.JPG
[12:53:41] <Bushman> http://bushman.pl/photos/misc/lathe/IMG_0105.JPG
[12:54:12] <Bushman> this is my ghetto bootstraping:
[12:54:15] <Bushman> http://bushman.pl/photos/misc/lathe/lathe_chuck_temporary_mount.jpg
[12:54:25] <Bushman> http://bushman.pl/photos/misc/lathe/scavenged_pulley_and_clamp_next_to_shaft.jpg
[12:54:51] <Bushman> junkyards are cool ;]
[12:56:48] <archivist> heh turn that back plate round
[12:56:49] <Bushman> had some carbide tool plates laying around and one day got bored and felt like hand-craft artist and hacked a tool holder...
[12:56:59] <Bushman> ...all by hand tools LOL
[12:57:01] <Bushman> http://bushman.pl/photos/misc/lathe/tool_04_assembled.jpg
[12:57:27] <Bushman> http://bushman.pl/photos/misc/lathe/tool_02_parts.jpg
[12:57:39] <archivist> I have a screw cutting insert holder I hand made
[12:57:50] <Bushman> ;]
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[12:58:09] <Bushman> the back plate is made of some weird stuff
[12:58:20] <Bushman> the materiall is soft and hard in layers
[12:58:34] <Bushman> really weird to be turned on broken lathe
[12:58:46] <Bushman> also i don't have any speed controll
[12:58:58] <Bushman> i need more pulleys or better motor with inverter
[12:59:26] <archivist> you just need the opposing v pulley to the original
[13:00:13] <Bushman> the original pulley is in fact not originall at all XD
[13:00:25] <archivist> but it is a V and flat bed, so if not worn will be reasonable machine
[13:01:05] <Bushman> also it requires a long belt that goes under the table
[13:01:30] <Bushman> umm... gtg! friend has some motor that could posibly work for my lathe... brb
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[14:06:41] <jthornton> I've got the 2.6 debian live cd loaded on the cave computer... a little gun oil on the shaft of the video card fan so lets see if LinuxCNC will run
[14:07:45] <_methods> hahah gun oil on the pc fan, is that tip in the linuxcnc integrators manual
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[14:08:44] <archivist> I use clock oil
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[14:10:38] <_methods> i'm making a wifi thermometer for my grill and i got some of those fancy new 31855 thermocouple boards
[14:10:42] <_methods> went to wire it up
[14:12:21] <_methods> damn dropbox thunar plugin actin up
[14:12:41] <Bushman> re
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[14:13:22] <jthornton> nope, locked up the computer when the sim config started to run... time to try the last motherboard I have
[14:13:34] <Bushman> turns out the motor was less suitable than what i already have
[14:13:58] <_methods> https://www.dropbox.com/s/pnxoxroos4ii98e/2015-01-25%2009.09.45.jpg?dl=0
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[14:15:50] <_methods> http://imgur.com/aDl88qQ,wfDmswr,nIJMWTJ
[14:15:53] <Bushman> _methods: i have no idea what that is but it's so small and cute i already like it ;]
[14:15:59] <_methods> imgur link for the security conscious
[14:16:26] <_methods> it's a max31855 breakout board
[14:16:29] <_methods> for thermocouples
[14:16:37] <_methods> k type
[14:16:38] <Bushman> cool ;]
[14:16:47] <_methods> but they soldered the header on backwards
[14:16:48] <_methods> lol
[14:16:48] <Bushman> or should i say hot! :D
[14:17:02] <_methods> the 2 pin header for the thermocouple lol
[14:17:14] <Bushman> LOL
[14:17:20] <Bushman> i didn't notice
[14:17:26] <Bushman> now i see it...
[14:17:38] <_methods> i didn't either till i went to plug in the thermocouple
[14:17:40] <Bushman> you had one job. ONE JOB!!!
[14:17:42] <Bushman> :D
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[14:27:41] <jthornton> bbl I hope
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[15:37:52] <PetefromTn_> Good Morning LinuxCNC!
[15:38:14] <archivist> it is afternoon coffee time!
[15:38:58] <PetefromTn_> naah it's not really ;)
[15:39:06] <PetefromTn_> you just think it is...
[15:39:36] <archivist> I know it is the dateline is not that far from me :)
[15:39:48] <_methods> heheh
[15:39:55] <_methods> that is the correct response lol
[15:40:04] <PetefromTn_> IRRELEVANT IRRELEVANT!!
[15:40:22] <archivist> been to Greenwich and stood on it
[15:40:38] <PetefromTn_> Don't try to confuse the situation with facts I know what I know....:D
[15:41:40] <archivist> if you do visit the museum there, you will get bored with "yet another perfect model of a ship"
[15:42:13] <archivist> and a few excellent clocks
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[15:44:24] <jthornton> Ok, I finally found a motherboard that works on wheezy and LinuxCNC doesn't crash the computer!
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[15:52:15] <jack16> Hello. I'm experiencing kernel crash after trying insmod rtai_hal.ko IsolCpusMask=2
[15:52:31] <jack16> here is crash message
https://www.dropbox.com/s/4i1ch4g9t848lwf/IMG_20150125_065503.jpg?dl=0
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[15:54:25] <jack16> I'm using linuxcnc 2.6.5 can anyone reproduce?
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[15:55:26] <jack16> I'm on dual core processor.
[15:56:05] <archivist> copy the text to a pastebin, an image is not that useful
[15:56:15] <archivist> all of it
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[15:57:35] <jack16> As it's kernel crash message, I will need to type it all. Will it help?
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[15:58:38] <Bushman> well... i just finished some minor improvement on my Y axis...
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[15:59:00] <Bushman> i went down to my basement where my ghetto lathe is living...
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[15:59:29] <Bushman> i gave her a hug, whispered some sexy stuff to her and turned her on
[15:59:50] <Tom_itx> jthornton, why not run 2.6 on lucid if wheezy doesn't like you?
[15:59:51] <Bushman> then i proceeded to turn a nut
[16:00:20] <Bushman> i've made a cone on one of the M8 nuts and installed it on the end of the lead screw
[16:00:37] <Bushman> reduced wobbling from 0.03 down to 0.01
[16:01:03] <Bushman> need to make another one for the other end and see what happens
[16:02:07] <jthornton> Tom_itx, I want a later version of
[16:02:09] <jthornton> Geany\
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[16:02:57] <jthornton> I'm running wheezy now! and LinuxCNC works so I can get back to programming G code generators... after my nap
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[16:07:34] <Tom_itx> nap! at 10AM?
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[16:09:02] <jthornton> it's 10:10!
[16:09:15] <Tom_itx> ahh ok :)
[16:10:09] <Tom_itx> i just upgraded mine from 2.5 the other day
[16:10:23] <Tom_itx> may load 2.7 once the control is up again
[16:11:36] <pcw_home> jack16: isnt IsolCpusMask=2 invalid with a 2 core machine?
[16:13:21] <JT-Shop> and it's raining so perfect napping weather
[16:14:54] <jack16> It's mask as I understand. Bit 2 set = second core. Same result with =1 BTW. With =0 (default) obviously wotks
[16:15:56] <jack16> Just reproduced with liveusb image. Works every time.
[16:16:32] <pcw_home> its a mask so only 0 or 1 are legal on a 2 core machine
[16:18:46] <pcw_home> Oh i am thinking about isolcpus which is a list of CPU numbers
[16:19:01] <jack16> pcw_home, I believe you are wrong. Perhaps you confusing with IsolCpus kernel parameter which indeed takes list of cores, starting with 0
[16:20:03] <pcw_home> Maybe better to use isolcpus (seems like isolCPUSmask doesnt work with RTAI)
[16:21:11] <jack16> It's rtai parameter, so it should work, but does not
[16:21:40] <jack16> rtai documentation mentions it for core isolation
[16:22:04] <pcw_home> I beleive thats been broken for a while
[16:22:50] <jack16> with IsolCpus only no Linux stuff is running on second core, but rtai uses both cores
[16:24:06] <pcw_home> if you read the RTAI logs there has been troubel with isolCPUS for a while, whether its fixed or no I dont know
[16:25:19] <pcw_home> do you have a latency issue?
[16:25:40] <jack16> perhaps I should bug rtai people about it. Or have a look at it myself. How can I tell rtai version I'm running
[16:27:01] <jack16> Actually my latencies are pretty good. 2500ns on moderate load, 7500ns under heavy load for 24h. But we always want more 8)
[16:28:24] <pcw_home> well actully those numbers are fairly meaningless, if you want an idea of real I/O latencies, plot some of the linuxcnc function times
[16:29:13] <jack16> it's results of latency-test with default params
[16:30:12] <pcw_home> those are just dispatch latencies (not actually trying to run a serous amout of code) plot the function and you will see what I mean
[16:31:06] <jack16> how can I do that?
[16:31:18] <pcw_home> halscope
[16:32:23] <jack16> I'm interested in software step generation and as I understand fast thread is pretty light (no fpu too)
[16:34:19] <pcw_home> yes that helps, just saying the the latency numbers mean less than you might think
[16:35:45] <jack16> well, I have a scope, might try to measure jitter for real. Ultimate test is of course repeatability with drivers&steppers
[16:36:06] <pcw_home> the servo thread latency numbers on a D525 may be 12 usec or so but the read and write threads have >60 usec of latency
[16:38:25] <jack16> BTW was surprised nmi watchdog was on by default. Added alot of latency. nmi_watchdog=0 fixed this
[16:40:02] <jack16> I think it should be default for next releases
[16:43:20] <jack16> So, how can I tell rtai version I'm using? Or download exact rtai source used in linuxcnc?
[16:45:29] <pcw_home> Not sure, dont run RTAI anymore, its not in the kernel log?
[16:46:37] <jack16> I think not (by default). Will check.
[16:47:01] <jack16> Is there better alternative to rtai for linuxcnc?
[16:47:56] <pcw_home> funny that nmi_watchdog should do anything, its only supposed to interrupt if there have been no other interrupts for 5 econds
[16:49:12] <jack16> well, I had isolcpus=1 and no regular irqs were served by second core
[16:50:18] <jack16> maybe related? but in /proc/interrupts I've seen nmi interrupts on both cores
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[16:54:16] <jack16> but I think it works other way: nmi are generated periodically an nmi handler checks if there were local timer interrupt (not any interrupt) in 5 seconds. If not, there are lockup condition
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[16:56:17] <pcw_home> Maybe, but before you get too exited about getting the last few usec of latency recovered, try plotting say the stepgen make steps time
[16:57:42] <PetefromTn_> NMI?
[16:57:50] <Tom_L> non maskable interrupt
[16:58:06] <PetefromTn_> ah
[16:59:08] <jack16> I'm new to halscope (or linuxcnc in general). How can I measure latency with it? Is there any tutorial?
[17:01:05] <jack16> stepgen is hal component that generates steps, right?
[17:01:29] <Tom_L> http://linuxcnc.org/docs/html/hal/tutorial.html
[17:01:41] <Tom_L> http://linuxcnc.org/docs/html/hal/tutorial.html#_halscope_a_id_sec_tutorial_halscope_a
[17:02:01] * Tom_L thinks PetefromTn_ should read that too
[17:07:11] <Tom_L> jack16, that or pwmgen
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[17:08:38] <jack16> Ok, I'v seen this. Should I eyeball jitter in halscope? Is there no overhead associated with halscope?
[17:10:18] <pcw_home> not much (but its interesting to watch the jitter when you move the mouse)
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[17:13:08] <jack16> Am I right that halscope runs at real-time task itself and just captures values of outputs it's instructed to?
[17:13:19] <jack16> at=as
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[17:14:34] <pcw_home> well most hal functions are real time tasks
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[17:15:15] <jack16> or there are instrumentation on every task to capture info for halscope?
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[17:16:07] <pcw_home> yes most functions record the time they use
[17:17:58] <jack16> I think I will get closer to ground truth measuring actual signals on LPT pins. Need to dig scope manual to setup it to collect statistics
[17:20:19] <pcw_home> Thats how I first noticed that the latency test results were rather misleading (scoped a parallel port output pin)
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[17:22:57] <pcw_home> not terribly surprising as there are things that cause latency (cache issues and hardware I/O blocking for example) that are not noticed by the latency test
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[17:30:12] <pcw_home> http://imgbin.org/index.php?page=image&id=22014
[17:30:13] <pcw_home> some hal function times plotted
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[17:42:57] <CaptHindsight> jack16: what version of Linuxcnc are you testing this with?
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[17:44:24] <CaptHindsight> linuxcnc 2.6.5
[17:44:26] <jack16> 2.6.5 image from linuxcnc site
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[17:47:18] <CaptHindsight> isolcpus is fixed but it's not in 2.6.5
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[17:48:52] <CaptHindsight> jack16: there has been a ton of fixes to RTAI but they are not in the Linuxcnc releases yet
[17:49:35] <CaptHindsight> you'll have to build from RTAI source if you want them
[17:50:12] <jack16> Ok question is
[17:50:34] <jack16> will linuxcnc work against newer rtai?
[17:51:04] <jack16> do I need to recompile linuxcnc (hal) as well?
[17:51:08] <CaptHindsight> yes, it how he tests it
[17:51:15] <CaptHindsight> it/it's
[17:51:57] <jack16> what version of rtai is used in 2.6.5?
[17:52:03] <PetefromTn_> the hal2000?
[17:52:44] <CaptHindsight> rtai is long story
[17:53:12] <jack16> I guessed so much
[17:53:31] <CaptHindsight> the new RTAI is not even at RTAI.org
[17:57:23] <CaptHindsight> jack16:
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Todo-2.6
[17:58:28] <CaptHindsight> looks like 2.6 has Shabby/memleak RTAI branch/fork for Linux 3.4
[17:59:25] <CaptHindsight> memleak is up to 3.16 now with lots of fixes
[18:00:20] <jack16> maybe backport isolcpus fuxes to whatever version 2.6.5 using?
[18:00:30] <jack16> *fixes
[18:00:46] <CaptHindsight> from what I recall that might be lots of work
[18:01:05] <CaptHindsight> it had to do with writing a new scheduler
[18:01:59] <CaptHindsight> isolcpus did work but not as expected
[18:02:16] <CaptHindsight> I have already forgotten the drama
[18:02:55] <XXCoder1> Jymmm: get remember that explodiding kittens kickstarter? it will cross 97,000 backers soon. wow
[18:04:27] <jack16> so which rtai version is used in 2.6.5? Any way to tell?
[18:04:50] <CaptHindsight> Shabby/memleak RTAI branch/fork for Linux 3.4
[18:05:11] <jack16> oh, so that's the name
[18:05:16] <CaptHindsight> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?The_Isolcpus_Boot_Parameter_And_GRUB2
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[18:05:37] <CaptHindsight> "There is a new scheduler in RTAI for 3.10 and 3.14. It no longer requires any isolcpus settings. "
[18:06:55] <jack16> How so, I do not understand
[18:09:05] <CaptHindsight> I believe that RTAI runs on the highest core
[18:10:05] <jack16> rtai Scheduler tells there are two cores available and tasks assigned to any core
[18:10:37] <CaptHindsight> the scheduler for which version of RTAI?
[18:10:46] <CaptHindsight> that has changed a bit
[18:11:00] <jack16> of 2.6.5
[18:11:25] <CaptHindsight> a broken version
[18:11:39] <jack16> at least it's what it exports from proc interface
[18:12:56] <CaptHindsight> isolcpus=1 should work best for you with a 2 core cpu
[18:13:23] <jack16> rtai docs say you should use rtai parameter IsolCpusMask in addition to kennel isolcpus parameter to isolate cores
[18:13:36] <CaptHindsight> heh rtai docs
[18:14:03] <CaptHindsight> RTAI had been broken and had no support for a while
[18:14:30] <CaptHindsight> the docs are of little value
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[18:15:05] <CaptHindsight> that comment may have been the case at a certain time
[18:15:17] <jack16> I think most benefit from isolcpus is that interrupts are handled by one core
[18:15:39] <PetefromTn_> I think we need to get ALL of the settings and changes that need to be made to the Atom D525 boards listed somewhere so we can all get em done....I say this NOT because I have one of course LOL
[18:16:02] <jack16> there are recent commits to that doc so possibly it's still relevant
[18:16:37] <CaptHindsight> the one that knows for sure is still asleep
[18:16:54] <CaptHindsight> but I don't think anyone has been touching the RTAI docs
[18:17:05] <CaptHindsight> I wouldn't take them too seriously
[18:17:34] <jack16> http://cvs.gna.org/cvsweb/magma/README.ISOLCPUS?cvsroot=rtai
[18:19:55] <CaptHindsight> https://github.com/NTULINUX/RTAI/blob/master/README.ISOLCPUS
[18:20:55] <jack16> this file was there for 10 years and was periodically updated so it should be still relevant
[18:21:58] <CaptHindsight> here's the latest RTAI tree
https://github.com/NTULINUX/RTAI is you care to try it
[18:22:02] <CaptHindsight> is/if
[18:22:34] <jack16> I linked latest version I think. Either way it indicates that for isolation IsolCpusMask is necessary.
[18:22:36] <CaptHindsight> PetefromTn_: you might be the one to do that :)
[18:24:21] <jack16> Are not linuxcnc developers going to do/doing it now anyway?
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[18:24:58] <CaptHindsight> jack16: which "it"?
[18:25:29] <jack16> trying it. New version that is.
[18:25:53] <CaptHindsight> the Linuxcnc devs use whatever version of RTAI they feel comfortable with at the time
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[18:28:12] <CaptHindsight> I don't know if they are using anything newer than 3.4
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[18:32:20] <jack16> if I use something like 4.0.1 that chances are linuxcnc will compile against it?
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[18:35:10] <CaptHindsight> if it's from rtai.org who knows what will happen
[18:35:29] <CaptHindsight> https://github.com/NTULINUX/RTAI is the latest working source for Linuxcnc
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[18:43:28] <jack16> ok, thanks
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[18:43:48] <jack16> Seems rtai really is fragmented
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[18:49:28] <Bushman> anyone familar with GTK+?
[18:49:31] <Bushman> i'm having problems with finding a working example of GTK based C/C++ code that can go full-screen. any tips?
[18:51:03] <Jymmm> https://www.daniweb.com/software-development/c/code/217401/going-fullscreen-in-gtk-
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[18:56:38] <XXCoder1> yo
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[18:58:34] <pingufan> Hello, is somebody using this DC spindle (from China)?
http://www.aliexpress.com/store/product/EN115-0-3KW-Spindle-for-CNC-Engraving-Machine-clamp/908764_538904301.html
[18:59:04] <PetefromTn_> GOD I HATE PINGU...
[18:59:43] <pingufan> ???????
[18:59:56] <PetefromTn_> ?
[19:00:10] <pingufan> What do you hate?
[19:00:21] <XXCoder1> pingufan: it says engraving. dunno if it can do more than that. experts may hav better answers
[19:00:22] <PetefromTn_> My daughters used to watch that damn annoying claymation cartoon...
[19:00:58] <PetefromTn_> there is a special place in hell for that and barney methinks ;)
[19:01:39] <pingufan> Well, I am milling plastic enclosures, Aluminum parts, wood, ... with tools not thicker than 3 mm. But this spindle also makes me slightly nervous, because of the long distance between lower bearing and chuck.
[19:02:22] <pingufan> XXCoder1: is it ok for such, or would you recommend to keep fingers away?
[19:02:37] <XXCoder1> no idea, just noticed "engraving"
[19:03:08] <SpeedEvil> 'should I keep my fingers away from the chuck'
[19:03:21] * SpeedEvil wonders when 'no' became a good answer.
[19:03:27] <PetefromTn_> LOL
[19:04:03] <pingufan> Currently I use a modifies Gravograph VX machine. 150W with belt driven spindle. (not verystrong, but I like it.) My only problem is the runout of the spindle I made by myself. At 25000 rpm this gives immense noise.
[19:04:33] <SpeedEvil> Well, you can always consider fixing the runout.
[19:05:04] <pingufan> Actually I would only need a rugged spindle with belt drive from rear end and a ø40mm outside diameter.
[19:05:55] <pingufan> I cannot fix it. The hole for rear of chuck is a little bit too big. So the chuck can be in an angle. very small, but possible.
[19:06:23] <XXCoder1> Add set screws
[19:06:23] <XXCoder1> ?
[19:06:48] <pingufan> 8 mm dia of while shaft.
[19:07:05] <pingufan> 8 mm dia of whole shaft.
[19:07:28] <pingufan> Not very much space there.
[19:08:50] <pingufan> I also had the idea to reuse a burned spindle's shaft. remove the motor's ancor, and then shorten it to my needs and put new bearings on it, but this is lots of work and allows (again) a runout.
[19:10:13] <pingufan> Can LinuxCNC regulate a DC spindle's rpm well? I use a VIA C7 1500 MHz CPU.
[19:14:54] <Bushman> Jymmm: did you read the comment?
[19:15:04] <Jymmm> nope
[19:15:19] <Bushman> the guy posted a comment that the example doesn't work
[19:15:29] <Bushman> (and it doesn't. i've checked)
[19:15:42] <Bushman> i'm to inexperienced to debug it
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[19:15:48] * furrywolf curls up and sighs, lacking anyone to curl up on
[19:15:58] <Jymmm> Bushman: Did you read below that?
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[19:17:43] <Bushman> there was something below that? it looked like bottom of the page!
[19:17:46] <Bushman> brb
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[19:18:52] <Bushman> oh... so the code in the comment wasn't a quote, is that what you mean Jymmm ?
[19:20:19] <Bushman> Jymmm: thanks mate!
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[20:04:00] <DGMurdockIII> hey guys what cnc bit did you suggest i get again
[20:04:43] <DGMurdockIII> im going to send it to my dad he the one buying the stuff
[20:05:48] <furrywolf_> tell him I want new toys too. :P
[20:07:27] <DGMurdockIII> lol
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[20:09:29] * furrywolf_ needs a mesa board, a nice enclosure for the drivers, a wetforher four, limit switches and wire to connect them, a spindle encoder, a lelo elise 2, a wifi card for a panasonic toughbook cf52, umm...
[20:12:35] <XXCoder1> http://hackaday.com/2015/01/24/atari-2600-controller-now-controls-cnc-plasma-cutter/
[20:14:10] <Tom_itx> can you rigid tap on a stepper mill without axis encoders?
[20:14:26] <furrywolf_> wow, if you completely gut something and put new electronics in it, you can make it something else! I had no idea!
[20:14:44] <XXCoder1> furry yea not new just strange lol
[20:15:01] <XXCoder1> just joystick and button, seems bit less useful than say xbox controller
[20:15:06] <furrywolf_> tom: you need a spindle encoder, but unless you have major backlash issues, you shouldn't need axis controllers.
[20:15:10] <furrywolf_> axis encoders
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[20:22:09] <jack16> Tom_itx, I think with steppers it will be less risky because steppers are somewhat "springy"
[20:25:45] <CaptHindsight> jack16: RTAI isn't fragmented it's just been forked to support Linuxcnc and Paolo is free to upstream anything he wants when he has the time and desire
[20:26:58] <Tom_itx> i could put one on z i suppose
[20:27:11] <Tom_itx> in case the stepper would lose steps
[20:27:40] <furrywolf_> they make spring-loaded tap holders if you're really worried, that allow a slight amount of z slop.
[20:27:52] <CaptHindsight> if the motor is properly sized and driven plus the correct pilot hole and tap are used it should just work like any other stepper
[20:27:52] <Tom_itx> i'm not that worried
[20:28:04] <Tom_itx> it's mainly an exercise to see if i can do it
[20:28:09] <CaptHindsight> open loop is always that way
[20:29:52] <furrywolf_> as long as your spindle encoder is accurate, it shouldn't make any steps that would cause it to jam...
[20:30:01] <furrywolf_> in theory. :)
[20:30:37] <Tom_itx> 2000 step
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[20:30:57] <CaptHindsight> step and pray
[20:31:09] <Tom_itx> i'll cut butter first
[20:31:43] <Tom_itx> i've got a ways to go before it'll happen anyway
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[20:34:19] <Vertices> hi, anyone got a FAQ for gcode for dummies who are new to this whole scene?
[20:34:36] <Vertices> not how to code, but more overview, how it actually interfaces with hardware
[20:35:36] <furrywolf_> http://humboldt.craigslist.org/for/4860035063.html that's a good deal... too bad I'm already pretty invested with outback hardware instead of trace...
[20:36:41] <Tom_itx> Vertices, look up the RS274 specification
[20:37:24] <furrywolf_> ths rs274 specification does not meet the requirements he wants.
[20:37:24] <Vertices> ok thank you Tom_itx
[20:37:29] <PetefromTn_> http://i.imgur.com/TesNfSJ.png Nice Shotgun for sale on craigslist!!
[20:37:40] <Vertices> disclaimer: im a hobbyist
[20:37:44] <Vertices> noob
[20:38:11] <Vertices> Ive been told the motor/machine decides how to interpret commands
[20:38:32] <Vertices> to me, that seems like it is a digital control protocol
[20:38:36] <XXCoder1> PetefromTn_: yeah Mr toenails probably didnt need it anymore
[20:38:43] <PetefromTn_> hehehe
[20:38:45] <Vertices> as there's no conversion to PWM or whatever requirex
[20:38:56] <Bushman> it's either a really small shotgun this guy has really large feet
[20:39:11] <PetefromTn_> N_A_S_T_Y!!!!
[20:39:16] <XXCoder1> may be actual bigfoot
[20:39:21] <Vertices> this is very pcb specific
[20:39:36] <Vertices> I have tool paths that can be output as sets of vectors
[20:39:45] <PetefromTn_> I showed that to my wife and she actually got mad at me for poisoning her brain with the image LOL
[20:39:47] <Vertices> kinda like a matrix in ascii numerals
[20:40:06] <Bushman> PetefromTn_: +1 :D
[20:40:29] <PetefromTn_> ya know shit like that you just can't UN-see unfortunately ;)
[20:41:24] <_methods> heheh
[20:41:33] <_methods> work in the ER
[20:41:59] <XXCoder1> PetefromTn_: goats.ex
[20:42:14] <_methods> pumpkin goatse lol
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[20:42:35] <XXCoder1> oops goatse.cx
[20:42:39] <PetefromTn_> jeez man....how could you live like that?
[20:42:55] <pcw_home> Tom_itx: theres no issue rigid tapping with stepper driven axis as long as your
[20:42:56] <pcw_home> spindle encoder has enough resolution and your axis drives do as well
[20:43:05] <PetefromTn_> I would have HAD to rip out the angle grinder or something hehehe
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[20:44:54] <furrywolf_> pcw: ever get a chance to see if you had a used 7I76E? and do they really work with linuxcnc? I found exactly nothing about supporting ethernet boards online...
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[20:45:32] <Tom_itx> pcw_home should be ok then
[20:45:36] <pcw_home> the Ethernt boards are supported by LinuxCNC 2.7 ( or > )
[20:45:49] <Tom_itx> the new spindle encoder is 500 count / 200 quad
[20:45:51] <Tom_itx> 2000
[20:46:02] <Tom_itx> steppers are 40k / inch
[20:46:19] <Tom_itx> pcw_home, got them on the shelf yet?
[20:46:25] <pcw_home> yeah so not much Z movement per count
[20:46:54] <Tom_itx> that was the main reason for swapping out the homebrew encoder on the spindle
[20:46:59] <Tom_itx> and to add an index
[20:48:13] <pcw_home> so for example a 20 tpi thread is 40000 counts per inch in Z also
[20:48:13] <PetefromTn_> what HP does your spindle have tom?
[20:48:20] <Tom_itx> small
[20:48:23] <Tom_itx> like 1/3
[20:48:45] <PetefromTn_> what do you figure you will be able to tap size ?
[20:48:47] <jack16> auto reversing heads are very fast, but cost bucks
[20:48:52] <Tom_itx> small
[20:49:13] <Tom_itx> but i don't do anything larger than say #10 on it anyway
[20:49:18] <zeeshan|2> http://www.kijiji.ca/v-tool-other/st-catharines/cat-40-tool-holders/1041361148?enableSearchNavigationFlag=true
[20:49:20] <zeeshan|2> good deal?
[20:49:39] <zeeshan|2> looks like they still sell af collets..
[20:49:44] <PetefromTn_> I once saw he whom won't be named put a little bracket off the side of the millhead with a stepper motor on it and did sort of a rigid tapping with the stepper driving the spindle directly..
[20:49:50] <zeeshan|2> was thinking of picking them up to hold rill bits
[20:51:18] <Tom_itx> those are short retention knobs
[20:51:23] <zeeshan|2> yea
[20:51:25] <zeeshan|2> i have replacements
[20:51:27] <Tom_itx> look like ones we used
[20:51:35] <zeeshan|2> i need tool holdersss
[20:51:37] <zeeshan|2> lots!
[20:51:43] <PetefromTn_> that facemill probably costs more than the asking price..
[20:52:04] <zeeshan|2> i just offered him 150 lol
[20:52:07] <zeeshan|2> for 11 holders
[20:52:10] <zeeshan|2> i dont need the face mill
[20:52:16] <zeeshan|2> no point in having 3 2" face mills
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[20:52:21] <furrywolf_> pcw: and did you find out if you had a used one?
[20:52:23] <PetefromTn_> LOL
[20:52:25] <Tom_itx> there is if you crash one
[20:52:30] <zeeshan|2> well i have 2!
[20:52:30] <zeeshan|2> :P
[20:52:42] <PetefromTn_> I want a 3" er
[20:52:44] <furrywolf_> two is one and one is none.
[20:52:44] <jack16> re tapping, anybody tried thread mill cutters like this?
http://www.harveytool.com/prod/Thread-Mill-Cutters/Specialty-Profiles/Browse-Our-Products_203/Thread-Milling-Cutters---Multi-Form-UN-Threads_156.aspx
[20:52:48] <zeeshan|2> i wonder if theyre made in usa
[20:52:52] <zeeshan|2> since they use funky collets
[20:52:55] <pcw_home> Im sure I have the proto somewhere...
[20:53:47] <PetefromTn_> you said you needed BT40 no?
[20:53:51] <Tom_itx> z, that one must be a tapered holder since it has slots in the side
[20:53:57] * furrywolf_ has been around long enough to know that if you don't have enough spares of something, it WILL break, and at the least opportune moment.
[20:54:03] furrywolf_ is now known as furrywolf
[20:54:51] <zeeshan|2> nah PetefromTn_
[20:54:54] <zeeshan|2> cat40
[20:55:08] <zeeshan|2> i bought conversion pull studs from mari
[20:55:15] <zeeshan|2> (which really hurt a lot )
[20:55:21] <zeeshan|2> http://www.maritool.com/Retention-Knobs-CAT40-Pull-Studs/c67_68/p1621/Pull-Stud-Hex-Head-4E-0110-%28-Deckel-,-Maho-%29/product_info.html
[20:55:28] <furrywolf> in fact, since it's the one part you don't have a spare of that always breaks, you might even be able to conclude that purchasing a spare decreases the chance of your other one ever breaking...
[20:58:15] <zeeshan|2> do you guys know why you can't get grind link finishes when turning/milling steel?
[20:58:31] <zeeshan|2> assuming you have the world most rigid machinist
[20:58:36] <zeeshan|2> *machine
[20:58:38] <zeeshan|2> + machinist haha
[20:59:50] <jack16> lol
[21:00:07] <zeeshan|2> prof keeps asking these questions cause he knows of the assumptions out there :P
[21:00:19] <zeeshan|2> i thought it was rigidity, but its not =P
[21:00:29] <furrywolf> a rigid machinist, eh? is that a machinist that moonlights as a dominatrix?
[21:00:49] <zeeshan|2> its a machinist that holds their breath on the finishing pass !
[21:01:11] <jack16> what is grind link finish?
[21:01:22] <Tom_itx> then realizes it was the pass just before the last one?
[21:02:01] <zeeshan|2> jack16:
http://www.iron-foundry.com/blog.files/surface_roughness_machining_card2.jpg
[21:02:12] <zeeshan|2> < 1.6 um Ra
[21:02:52] <zeeshan|2> ra isn't the greatest way to compare though
[21:03:35] <zeeshan|2> anyway i found the answer
[21:03:57] <zeeshan|2> its because the cutting edge radius of cutter is limited to 15-35 micron
[21:04:15] <zeeshan|2> if you go any smaller, stress concentration is too much and it pretty much destroys itself in the first couple seconds
[21:04:46] <zeeshan|2> so since you're limited to 35micron = .0013" , that means
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[21:04:47] <jack16> because when cutting there is always tearout? Maybe with negative rake...
[21:04:59] <zeeshan|2> your feed per minimum must be .0013/rev
[21:05:08] <zeeshan|2> otherwise you just plough through the material instead of shearing it
[21:05:41] <zeeshan|2> which made me realize ive been using the wrong inserts to finish with
[21:05:41] <zeeshan|2> lol
[21:05:47] <zeeshan|2> cause i get ploughing when i try to finish
[21:06:23] <furrywolf> I once bought some harbor freight lathe cutters. they just push through the material no matter how you feed it, since they lack, you know, a sharp edge.
[21:08:13] <zeeshan|2> hone em!
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[21:10:47] <zeeshan|2> nice 49 degF in the garage with no heating on
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[22:15:59] <Deejay> gn8
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[22:20:11] <furrywolf> I hate lawnmowers.
[22:21:17] <_methods> i love lamp
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[22:30:11] <furrywolf> my lawnmower stops running after ~20 minutes, and doesn't like restarting until the next day. it pulls awfully easily. methinks it has no compression...
[22:30:32] <Jymmm> duct tape!
[22:31:46] <furrywolf> it always seems like lawnmowers are built with the absolutely lowest quality parts... even though two engines may be nominally the same series, the horizontal shaft versions seem to outlast the vertical shaft versions 10:1...
[22:32:21] <Jymmm> wouldnt that be called an edge trimmer?
[22:32:25] <furrywolf> pull an old horizontal shaft motor out of the scrapheap, cowling rusted away, hasn't ran in a decade... it'll probably take less than an hour to have it running like a top. a shiny lawnmower only a few years old? probably needs an engine.
[22:33:44] <furrywolf> ?
[22:34:04] <furrywolf> horizontal shaft motors are used on generators, snow blowers, rototillers, etc, etc, etc... everything except cheap lawnmowers.
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[23:05:51] <SpeedEvil> Most people don't feed their generators grass-clippings through the air intake
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[23:25:43] <Tom_itx> would it be better to use pwmgen or stepgen for a spindle pulse or does it matter that much?
[23:26:04] <Tom_itx> i can use mode 0 stepgen i think: step/dir
[23:30:42] <Tom_itx> i notice in the .vhd file the pwmgen has signals: PWMAOutPin, PWMBDirPin and PWMCEnaPin
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[23:45:51] <jack16> it depends on what type of signal spindle needs
[23:46:24] <jack16> usually pwm or 10v analog
[23:47:50] <PetefromTn_> Tom_itx I am not that familiar with it but Stepgen is not something typically used for spindle control is it?
[23:49:04] <pcw_home> some 0..10V spindel control boards use stepgens (frequency to voltage)
[23:49:17] <pcw_home> spindle
[23:50:02] <PetefromTn_> I used to have that CNC4PC C11G board and I think it used PWM spindle control converted to 0-10v analog out...
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[23:51:53] <Tom_itx> pcw_home, is the difference pwmgen is duty cycle instead of frequency?
[23:52:03] <Tom_itx> and stepgen is frequency not duty cycle
[23:52:45] <Tom_itx> their example used stepgen
[23:52:53] <pcw_home> yes (but to confuse things a stepgens varies duty cycle also)
[23:53:27] <Tom_itx> to smooth out the power range?
[23:53:39] <pcw_home> so if its a RC filter its likely either will work
[23:54:32] <jack16> but with RC filter there will
[23:54:51] <pcw_home> say I set the steplength to 100 usec and stepspace to 0, now i get 0 to 100 percent duty cycle at 0 to 10 KHz
[23:55:04] <jack16> likely will be non-linearities
[23:55:29] <pcw_home> Yes there always are
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[23:55:52] <Tom_itx> well their example uses softwre stepgen with a steplen of 1 and stepspace of 0
[23:56:28] <furrywolf> nonlinearaties should be removed by the spindle encoder loop... there's likely a lot of them. probably doesn't turn at all below 10%, etc.
[23:56:31] <pcw_home> especially since most of these devices use cheap OPTOs that tend to be slow and assymetrical
[23:58:18] <Tom_L> i guess i'll try it with the stepgen first and see how it acts
[23:58:54] <pcw_home> so its hard to guess whether PWM or PFM is best, depends on the hardware
[23:58:56] <pcw_home> (note that a steplen of 1 does not work with the hardware stepgen)
[23:59:12] <Tom_L> unless the steplen and stepspace is too far off from the Gecko drives
[23:59:20] <Tom_L> i figured so
[23:59:25] <Tom_L> seemed rather short
