#linuxcnc | Logs for 2015-03-27

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[00:00:26] <zeeshan> can you clean the scale
[00:00:36] <tjtr33> yours have the zigzag thermal expansion mount slots?
[00:00:36] <tjtr33> \but you can read the heidenhain manual on mounting
[00:00:36] <zeeshan> without losing alignment?
[00:00:37] <tjtr33> the creeping you wrote about sounds like connections or noise, not dirty scale
[00:00:46] <zeeshan> oh
[00:02:36] <tjtr33> you got the red plastic shipping restraint for the head? it establishes the correct head attitude to the scale. ( necc for shipping )
[00:02:51] <zeeshan> no
[00:03:07] <zeeshan> brb gonna go on the machine and check if its being crazy
[00:05:11] <furrywolf> bbl, it's past wolfy bedtime
[00:06:36] <zeeshan-mill> hm
[00:06:39] <zeeshan-mill> seems to be fine still
[00:07:33] <furrywolf> now try spraying the scale in black spray paint to see if a dirty scale causes the issue you had. :P
[00:09:22] <furrywolf> bbl
[00:11:45] <bobo_> thought the heidenhain manual on scale mounting said remove the red shipping restraint after finishing up the scale mounting . what if the red restraint is not available ?
[00:12:27] <tjtr33> zeeshan, vid for repair and cleaning of very similar construction https://www.youtube.com/watch?v=xV5VX6dkJvw
[00:12:56] <tjtr33> the twisty spung head and the scale and zipper lips look same to me
[00:14:05] <tjtr33> yes you'd have to remove the whole thing to clean correctly, 95+% alcho . but... if it works dont mess wif it :)
[00:15:15] <zeeshan-mill> hehe
[00:15:35] <tjtr33> didja know it has port to add air-over pressure on it? keeps slight pressure inside to keep dirt out
[00:18:10] <zeeshan-mill> yes
[00:18:15] <zeeshan-mill> theres barbs there
[00:18:16] <zeeshan-mill> hehe
[00:20:44] <zeeshan-mill> i need a machine just to square blocks :)
[00:30:37] <zeeshan-mill> seems to be machining fine now
[00:51:36] <zeeshan> yay!
[00:53:35] <zeeshan> x .7762 y.3297 , x2.8789 y.3297 , .159 drill
[00:53:40] * zeeshan is using linuxcnc as whiteboard
[01:08:09] <zeeshan-mill> i LOVE g73
[01:08:15] <zeeshan-mill> first time trying it
[01:08:23] <zeeshan-mill> using a 1/4" drill:
[01:08:38] <zeeshan-mill> g73 z-.625 r.125 q.010 f15
[01:08:42] <zeeshan-mill> raped the hole
[01:14:03] <tjtr33> ? there is no G81 with pecking?
[01:14:51] <tjtr33> :) G83 maybe
[01:15:43] <zeeshan-mill> g73!
[01:15:49] <zeeshan-mill> rapid retract drill cycle
[01:16:10] <tjtr33> aka pecking
[01:16:29] <tjtr33> and g83 does a list of them
[01:19:13] <tjtr33> gnite
[02:19:46] <zeeshan> http://i.imgur.com/Ac9zTwT.jpg
[03:14:38] <Deejay> moin
[03:18:14] <Tecan> mornin
[03:18:23] <Tecan> zeeshan, is that for propane or nitro ?
[03:18:34] <zeeshan> fuel
[03:18:36] <zeeshan> gasoline
[03:19:01] <zeeshan> why am i still up
[03:19:01] <zeeshan> :/
[03:19:05] <Tecan> oh part of the fuel rail
[03:19:11] <zeeshan> yes
[03:20:00] <Tecan> that winshield motor looks like a strut lol
[03:20:10] <Tecan> beefy
[03:20:23] <zeeshan> maybe they designed to use them in a hurricane
[03:20:27] <zeeshan> !
[05:06:31] <PmK> hellooo :-)
[05:07:26] <XXCoder> hey. welcome
[05:07:31] <XXCoder> late now though lol
[05:08:11] <PmK> anyone here that could help me with a little pwm-spindle-speed-problem?
[05:10:29] <XXCoder> cant help much, and it is late :)
[05:10:42] <XXCoder> maybe try in hmm 6 hours to 8 hours?
[05:10:52] <PmK> where are you located? here it is 11am
[05:10:55] <PmK> :-D
[05:11:00] <XXCoder> 2:50 am
[05:11:12] <XXCoder> I finished work hour ago and now chilling a but
[05:11:39] <PmK> oh. ok.. thats kinda late.. so in 6-7 hours there are more around here?
[05:12:13] <archivist> pwm->filter->motor control
[05:14:00] <PmK> archivist thanks info but i think i have a more special problem. ive described the problem here -> http://www.linuxcnc.org/index.php/english/forum/38-general-linuxcnc-questions/29021-spindle-pwm-with-tb6600-and-hx-ws400
[05:15:04] <XXCoder> yeah
[05:15:43] <archivist> that does not actually state your problem either
[05:16:38] <archivist> http://linuxcnc.org/docs/html/examples/spindle.html
[05:16:41] <PmK> the problem is that spindle is running 100% all the time
[05:16:48] <PmK> ive already tried out that examples
[05:17:27] <PmK> normaly im searching the whole net before im asking stupid questions :-)
[05:17:36] <archivist> scope to see if you have signals where you think they should be
[05:24:56] <PmK> but pwm is hard to measure.. could it be possible that the VFD is outputting a 0-10V-Voltage instead of pwm?
[05:25:40] <archivist> vfd expects an input of 0-10v
[05:26:31] <archivist> that is why one uses a filter to convert pwm to a dc level
[05:27:22] <archivist> plus any opamp or other gain circuit to set levels and range
[05:28:03] <PmK> when i bought that stuff my opinion was that this -> http://www.ebay.ca/itm/New-BLDC-HX-WS400-M335-Brushless-Stepper-DC-Motor-Driver-400W-/221409264751 would work with that -> http://www.omc-stepperonline.com/download/pdf/3_Axis_TB6600_CNC_Driver_Board_Users_Manual.pdf
[05:28:17] <PmK> because signalhandling would be done by the tb6600-board
[05:29:34] <archivist> that vfd seems to have both pwm and variable dc
[05:29:56] <PmK> yes. but im not sure what the TB6600 is outputting
[05:30:22] <PmK> because those chinese dudes cant really write manuals :-D
[05:31:16] <archivist> I know, I have even taken things to bits to see what is inside to interface properly
[05:32:14] <PmK> thats what i would like to avoid :-D
[05:33:18] <PmK> but if the tb6600 is outputting a variable voltage and the vfd needs 0-5v, how could i limit the voltage in linuxcnc?
[05:33:36] <PmK> the manual of the tb6600 is saying something like 0-10V on that pin
[05:34:36] <archivist> scale it in linuxcnc so 100% is actually 50%
[05:35:26] <PmK> with setp pwmgen.0.scale ?
[05:35:39] <archivist> something like that
[05:37:16] <PmK> hmm. ok. i will measure first.. maybe ive connected that vfd wrong at the moment. ive connected the TB6600 to the PWM-Pin. There is a VR-Pin as well
[05:37:23] <archivist> I would be scoping the signal into and through that chines board
[05:38:30] <archivist> pwm pin expects a direct drive from the port (possibly needing a buffer to drive an opto)
[05:39:26] * archivist wanders off to the small library for a while
[05:39:46] <PmK> ok. so think maybe im really wrong with my connection? i will try out..
[05:40:51] <PmK> crazy manuals.. output-pin says VPD, 2cm away stands VFD and in the manual stands PWM 0-10V...
[05:50:10] <_rob> anyone here in London who could mill a large bit of cast iron for some money ?
[05:58:18] <archivist> _rob, closest to you might be andypugh but he has a proper job, I am up in the midlands though
[06:35:47] <archivist> _rob, and define large, some think 3 feet is tiny
[09:30:28] <packetologist> I'm hoping this is a channel for EMC related things
[09:31:04] <archivist> what kind of emc
[09:31:13] <packetologist> We just stood up an Avamar/Data Domain implementation and we have 1 or 2 VMs that fail to be backed up daily. I was wondering if there was an easy way to rerun the back for ONLY those failed VMs easily
[09:31:38] <archivist> that evil company forced us to change name
[09:31:54] <packetologist> Different EMC then?
[09:32:00] <archivist> the sign on the door is linuxcnc
[09:32:19] <archivist> used to be called emc2
[09:32:42] <archivist> enhanced machine control
[09:32:47] <packetologist> Ok well sorry to waste your time
[09:33:25] <packetologist> And thanks for the explanation
[09:33:30] <packetologist> Take care
[09:44:31] <skunkworks> packetologist - funny
[09:58:48] * archivist must not wind up people who pay through the nose for expensive software :)
[09:59:29] <malcom2073> Turn your nose up in hypocricital moral superiority!
[09:59:52] <malcom2073> (implying that turning your nose up is immoral, not that using linuxcnc isn't superior)
[10:04:22] <FinboySlick> archivist: They make hardware too.
[10:04:58] <archivist> probably as expensive
[10:05:11] <FinboySlick> archivist: My only exposure to EMC was a million dollar terabyte hard drive.
[10:05:37] <FinboySlick> It looked like an expensive fridge.
[10:05:52] <skunkworks> when? 1993?
[10:06:10] <FinboySlick> With a laptop bolted inside the door. It was um... 2000.
[10:06:48] <archivist> hehe, but they are a lot cheaper than that these days £69.99 for 2tb external :)
[10:07:18] <archivist> http://www.pcworld.co.uk/gbuk/data-storage/hard-drives/desktop-external-hard-drives/wd-elements-external-hard-drive-2-tb-black-22087970-pdt.html
[10:07:27] <_methods> you shouldn't be ashamed of your superiority
[10:07:29] <FinboySlick> Back then though it made some sense. It was really a 'buy and forget' kind of deal.
[10:07:30] <_methods> own it
[10:07:47] <FinboySlick> The thing came with its own set of technician and called them whenever it needed attention.
[10:08:01] <FinboySlick> All we had to worry about was reading and writing stuff to it.
[10:09:37] <archivist> 1 tb takes some filling
[10:09:38] <FinboySlick> Frankly, I liked it a lot better than Barney, our tape backup robot. That thing always wanted attention from us.
[10:10:34] <skunkworks> I have 3 or more 15+ terabyte bays here
[10:10:52] <archivist> tape sort, easy to implement in your brain when sorting a list in a text editor
[10:11:16] <cradek> NAME SIZE ALLOC FREE CAP DEDUP HEALTH ALTROOT
[10:11:16] <cradek> pool 43.5T 28.6T 14.9T 65% 1.00x ONLINE -
[10:11:20] <cradek> I have a couple of these
[10:11:28] <skunkworks> nice
[10:11:41] <archivist> tape sort also good for stacks of magazines
[10:12:31] <FinboySlick> http://www.tech.proact.co.uk/i/sun_storedge_l700_tape_library.jpg That was Barney. Big purple annoyance.
[10:13:02] <_methods> http://mic.com/articles/113740/a-team-of-biohackers-has-figured-out-how-to-inject-your-eyeballs-with-night-vision
[10:13:09] <_methods> that sounds kinda stoopid
[10:13:58] <FinboySlick> I was half expecting, "Mercury is highly reflective and allows for night vision. All you need is a couple drops in each eye."
[10:14:40] <skunkworks> /dev/md127 20T 6.7T 13T 35%
[10:15:30] <archivist> with a few TB I could digitise more dead trees
[10:18:24] <SpeedEvil> _methods: the stuff is $4 a dose
[10:18:39] <pingufan> Hi, I think about building a Pick and Place machine (for placing SMD parts on PCBs). I saw a testing setup in youtube, the guy used linuxcnc. Well, this is not smart enough in total, because a blind compiled set of G codes cannot deal well with feedback.
[10:18:45] <SpeedEvil> http://slashdot.org/
[10:18:47] <SpeedEvil> err
[10:18:53] <SpeedEvil> http://orders.frontiersci.com/Orders/WebPlugin/ProdDetail.aspx?cat=Ce6
[10:19:15] <Jymmm> archivist: http://www.engadget.com/2014/12/12/seagate-ships-8tb-shingled-hard-drive/
[10:19:23] <SpeedEvil> pingufan: It depends.
[10:19:31] <SpeedEvil> In some cases blind is fine
[10:19:35] <pingufan> So I tend between doing everything by myself (using a microcontroller to control several steppers, or to inject G codes "on the fly", generated by the PIC or a different program.
[10:19:44] <pingufan> Does this work with linuxCNC ?
[10:19:56] <SpeedEvil> I question how a microcontroller would help
[10:20:05] <SpeedEvil> In principle, you could teach linuxcnc about vision
[10:20:09] <pingufan> do everything with it
[10:20:28] <pingufan> What is vision ?
[10:20:44] <archivist> pick and place is a fixed path usually
[10:21:07] <archivist> vision-camera and software
[10:21:54] <SpeedEvil> Can be either a camera viewing the whole bed, or a close-up camera viewing only the active head
[10:21:59] <pingufan> Not so easy in total. I have to pick the part from a rail, forst advance the rail, then turn the part, move to the desired location, place it, ....
[10:22:33] <pingufan> Never did that (especially programming video) before.
[10:23:02] <archivist> you know in advance where the parts go and where you pick from
[10:23:28] <pingufan> But I have to control 50 feeders, etc.
[10:23:44] <Rab> pingufan, this might be relevant: https://github.com/hzeller/rpt2pnp
[10:30:23] <ssi> marn
[10:30:57] <_methods> hola
[10:35:26] <ssi> what's shakin
[10:36:30] <ssi> pingufan: honestly I think your best bet is to get computer vision working simply so you can pick up fiducials
[10:36:44] <ssi> then come up with a scheme to auto-skew your coordinate system to home to the fiducials
[10:36:51] <ssi> shouldn't be terribly hard
[10:37:01] <ssi> then just place blind based on where you expect the board to be
[10:37:14] <skunkworks> pingufan, https://www.youtube.com/watch?v=CVlad7l9HvI
[10:44:48] <Jymmm> Has anyone seen these in a break-away version? (square, not round pins) https://www.sparkfun.com/products/11376
[10:45:23] <Jymmm> https://cdn.sparkfun.com//assets/parts/7/1/2/2/11376-01a.jpg
[10:48:50] <pcw_home> I dont think a breakaway version is possible (not enough insulator between receptacles)
[10:49:47] <Jymmm> pcw_home: I've seen break-away in shorter version headers, just not with long leads
[10:50:02] <Jymmm> oh, wait, I see what you mean, the sockets
[10:50:25] <pcw_home> if I need a odd length I break at a pin (losing a pin) and sand flush
[10:50:40] <ssi> yeah that's what I've done too
[10:50:51] <ssi> cut with diagonal cutters across one socket and trim
[10:51:06] <pcw_home> Yep
[10:51:20] <Jymmm> Ok, know where to find the longest ones possible, maybe 40 pin?
[10:51:30] <Jymmm> 80pin?
[10:52:26] <pcw_home> longest I have are some 32s (leftover PC/104)
[10:53:09] <Jymmm> yeah, 32 work. I just figure the price for a 8pin and 32 pin would be about the same.
[10:53:49] <pcw_home> ( from the bad old days before press fit PC/104 connectors )
[10:54:43] <pcw_home> price is usually approximately per pin
[10:55:21] <Jymmm> Are these wirewrap sockets? (name wise)
[10:55:59] <pcw_home> not in the PC/104 case, they are stackable connectors
[10:57:02] <pingufan> skunkworks: Thank you, I will look and think ...
[10:57:19] <Jymmm> pcw_home: looks liek they are calling them "stackable header"
[10:59:27] <Jymmm> thank you
[10:59:46] <pcw_home> sometimes called "stackthrough connectors"
[11:01:40] <Jymmm> Hmmm 64 pin too
[11:03:27] <pcw_home> the 32 pin ones I have date from when you had to hand solder the PC104 connectors so they had be done a strip at a atime
[11:04:38] <pcw_home> ( no way to reach the inner row if done with 2 double row connectors )
[11:06:30] <pcw_home> sure glad they are all press-fit now
[11:08:40] <Simonious> heh, anybody got a DXF import/export that works with sketchup 2015? :/ my pro trial expired and I'm still learning my other softwares that can do DXFs..
[11:10:14] <archivist> go back to your older version of sketchup mebe
[11:10:23] <Simonious> yeah, that'd work too
[11:10:28] <Simonious> just exploring options
[11:40:48] <zeeshan> and i thought i was ghetto for snipping off regular headers
[11:40:53] <zeeshan> and sanding them flat :-)
[11:44:35] <Simonious> Does anyone here have any experience with SketchUcam and anything to say about it?
[11:58:11] <zeeshan> man im even more stumped on why the hell scale went all crazy
[11:58:23] <zeeshan> i reheated the garage again and remade the part with no problems..
[11:58:35] <zeeshan> and this scale is one that is hidden behind a solid cover
[11:58:44] <zeeshan> it had some chips on the bottom of it
[11:58:51] <zeeshan> but none that i could see on the glass scale
[11:59:00] <zeeshan> scale = grating
[11:59:03] <Jymmm> zeeshan: Maybe it was that visit to the all-you-can-baby-back-ribs place last night?
[11:59:10] <zeeshan> maybe
[11:59:15] <zeeshan> it decided to be lazy
[12:29:54] <dirty_d> got my dualshock4 working real nice as a jog pendant
[12:30:37] <zeeshan> how do you select increments on it?
[12:30:46] <dirty_d> using R1 and R2
[12:30:53] <dirty_d> they represent 2 bits to a mux4
[12:31:09] <zeeshan> so i guess you look at the screen
[12:31:15] <zeeshan> to figure out what increment youre set to?
[12:31:18] <dirty_d> no
[12:31:36] <dirty_d> R1 and R2 is 0.01, R1 0.001, R2 0.0001
[12:32:28] <dirty_d> and the analog sticks do the analog move
[12:32:40] <dirty_d> also using R1 and R2 to set the speed
[12:33:10] <dirty_d> im gonna add some stuff to set work offsets for an edge finder
[12:33:31] <zeeshan> yes but sometimes you press a button
[12:33:42] <zeeshan> and if it doesnt click accidently, you want to be sure
[12:34:03] <zeeshan> the reason for the questions is im looking for a jog pendant currently :)
[12:34:10] <dirty_d> what do you mean?
[12:34:26] <dirty_d> it wont move unless you hold down the speed button and the button to move
[12:34:30] <dirty_d> and the sticks have deadzone
[12:34:59] <zeeshan> im basically saying -- how do you ensure when you press r1 it selected 0.01
[12:35:07] <zeeshan> (like you wanna double check that you actually pressed the button)
[12:35:30] <dirty_d> it has to be held down
[12:35:35] <zeeshan> okay i get you
[12:35:35] <zeeshan> :)
[12:35:36] <dirty_d> you cant just click it once
[12:35:40] <dirty_d> if its not down, it wont move at all
[12:35:46] <zeeshan> i like that
[12:35:56] <dirty_d> yea, seemed more safe
[12:36:09] <zeeshan> its like all your r1 and r2 buttons are automatic stops
[12:36:22] <dirty_d> the analog sticks are nice too though, you can move super fast or super slow with really good precision
[12:37:15] <dirty_d> so slow i could edge find with them
[12:39:59] <dirty_d> this should make it a little harder to break an edge finder again, lol
[12:40:19] <dirty_d> accidentally double clicked the wrong row in the MDI list
[12:40:29] <dirty_d> g01 x0 y0 instead of g01 x0
[12:40:33] <dirty_d> *snap*
[12:42:10] <dirty_d> i need to look into making some kind of circuit to make touching off Z easier
[12:42:32] <dirty_d> sliding a shim under the tool and typing in 0.004" every time is getting old
[12:42:41] <zeeshan> lol
[12:43:14] <dirty_d> i think there might be a big enough difference in the resistance from the tool to the work when its touching vs not touching to be detected
[12:43:53] <dirty_d> like use a comparator with a 1 milliohm resistor as the refrence
[12:44:03] <dirty_d> its probably more than taht when its not touching, and less when it is
[12:44:37] <dirty_d> and definitely a difference in inductance, but taht would be harder to make, and im not even sure how
[12:48:17] <dirty_d> actually id need a current source
[12:52:54] <skunkworks> jdh_, did you ever get modbus working with nowforever d100 ?
[12:53:48] <renesis> dirty_d: reactivity would change a lot with tool and work geometry
[12:54:38] <renesis> resistive would be a lot easier if you can afford to actually touch the work
[12:55:06] <dirty_d> yea i think it will be fine, i touch the work anyway when using a shim
[12:55:21] <renesis> do you mind referencing the part?
[12:55:23] <dirty_d> by reactivity you mean an AC signal would have its phase shifted?
[12:55:32] <dirty_d> what part?
[12:55:32] <renesis> instead of on a fixture or machine somewhere
[12:55:39] <renesis> the work
[12:55:44] <dirty_d> nope
[12:55:52] <dirty_d> id like either to work
[12:55:54] <renesis> yeah then it should be pretty simple
[12:56:14] <renesis> and i mean trying to do it by capacitive sense
[12:56:30] <dirty_d> taht would be easier than resistive?
[12:56:31] <renesis> and im not sure how you would do it inductive
[12:56:38] <renesis> without funky special tooling, heh
[12:57:00] <renesis> no capacitive sense would change too much to be reliable i think
[12:57:08] <dirty_d> hmm
[12:57:26] <renesis> like with diff size and geometry tools, and with different work features
[12:57:33] <dirty_d> if i use a 200ma current source, im going to have to be comparing like 200uV signals
[12:57:41] <renesis> tho you may be able to use it to detect when you are close
[12:57:48] <dirty_d> assuming the resistance not touching is 1 milliohm
[12:57:51] <renesis> and then go very slowly for resistive touch
[12:57:53] <dirty_d> no idea what it actually is
[12:58:08] <dirty_d> id probably be manually doing it anyway
[12:58:15] <dirty_d> move slower as i jog closer
[12:58:23] <renesis> resistance not touching is going to be huge, like 100M+
[12:58:29] <dirty_d> or even step by the 0.001"
[12:58:39] <dirty_d> renesis, wait why?
[12:58:42] <renesis> when touching, its going to be under 1 ohm most likely
[12:58:52] <dirty_d> theres a direct path from the tool to the work
[12:59:00] <dirty_d> the bearings in the spindle make contact
[12:59:02] <renesis> when touching or not touching?
[12:59:06] <dirty_d> both
[12:59:20] <dirty_d> and all the ways still contact
[12:59:24] <dirty_d> even with oil
[12:59:25] <renesis> then i dont think i understand how you are detecting contact
[12:59:35] <dirty_d> the difference in resistance
[12:59:49] <dirty_d> its a longer path from the tool to the work when the tool isnt touching the work
[12:59:55] <renesis> right, its an open versus shorted circuit, its effectively a switch
[13:00:02] <Loetmichel> *meh* sometimes i ask myself how they think they will pay their tickets... just counted 16 overtakers on my way home, some with reasonably deltaV... on 3km highway... and i was already going 128kmh, 8 over the speed limit there...
[13:00:04] <renesis> oooh
[13:00:13] <renesis> yeah that totally depends on your machine
[13:00:24] <dirty_d> i think it would be enough to be detectable
[13:00:39] <renesis> i was assuming isolation between the tool and the work, but yeah doing it that way is going to be work
[13:00:48] <dirty_d> yea, i have no isolation
[13:01:06] <CaptHindsight> Jymmm: yes, need a link?
[13:01:10] <dirty_d> i guess it would be possible with ceramic bearings
[13:01:15] <dirty_d> but im not gonna go through all taht just for this
[13:01:24] <CaptHindsight> Jymmm: nevermind
[13:01:24] <renesis> i have an anodized aluminum table
[13:01:33] <Jymmm> CaptHindsight: to?
[13:01:45] <dirty_d> renesis, what if it scratches?
[13:01:48] <renesis> but yeah its going to take a big current source to be able to reliable detect that current diff
[13:01:57] <dirty_d> or a really sensitive comparator
[13:02:06] <renesis> dirty_d: yeah i dunno i havent done resistance tests
[13:02:08] <dirty_d> i wouldnt want to put more than an amp though it
[13:02:13] <dirty_d> id be afraid i might mess up the bearings
[13:02:14] <CaptHindsight> Jymmm: i was in scrollback :), a question you had hours ago
[13:02:16] <renesis> cap sense is worth testing
[13:02:23] <renesis> anyway gotta go
[13:02:29] <dirty_d> later
[13:02:46] <Jymmm> CaptHindsight: I'm ging to hit surplus store and hope they have some.
[13:02:54] <Jymmm> CaptHindsight: doubtful though.
[13:04:20] <CaptHindsight> yeah, mouser or digikey is your best bet
[13:04:48] <Rab> Jymmm, what are you looking for?
[13:05:00] <CaptHindsight> I think I made my last radio Shack purchase yesterday, they were still open nearby and had 1/4" right angle phono plugs
[13:05:42] <CaptHindsight> Rab: these in long cut as long as you want strips https://www.sparkfun.com/products/11376
[13:06:36] <Rab> Oh, hmm. I'd try eBay, stackable headers are actually kinda hard to find through western distributors.
[13:07:55] <Rab> And I've never seen a breakaway version.
[13:09:28] <Jymmm> Rab: Yeah, pcw_home pointed out the no room for breakaway - bummer for me
[13:36:50] <dirty_d> this might do the trick http://www.linear.com/solutions/1616
[13:40:22] <Rab> dirty_d, just FYI, conductivity touch-off through the tooling is supposed to cause ablation of the cutting edge, if the current is high enough.
[13:41:55] <dirty_d> Rab, i was thinking like 200ma
[13:42:00] <Rab> Maybe that has come to light because doods hook a 12V wall-wart across the spindle and workpiece, and try to drive a relay with the output. It might not be any problem with microcurrent resistance monitoring.
[13:42:01] <dirty_d> no that shouldnt be an issue
[13:42:19] <Rab> 200mA seems like a lot, actually. It's definitely enough to cause a spark.
[13:42:39] <Rab> I wouldn't want to pass current though bearings, for the same reason.
[13:42:48] <dirty_d> yea i know that was my main worry
[13:42:53] <dirty_d> well hopefully i can use less current
[13:43:00] <Rab> Any sparking is basically EDM of your tool tip.
[13:43:06] <dirty_d> if the tool to work resistance is higher than i think
[13:43:16] <archivist> add a brush to contact the spindle
[13:43:20] <dirty_d> i guessed a millivolt
[13:43:29] <dirty_d> milliohm i mean
[13:44:16] <XXCoder> morning
[13:54:34] <Loetmichel> Rab: besides sparking in the bearings: most good spindle bearings have a good enoough grease layer that the spindle is totally isolated from the body ;-)
[13:55:24] <Rab> Loetmichel, makes sense.
[13:55:42] <XXCoder> you guys ever heard of bearing engine?
[13:56:15] <Loetmichel> XXCoder: which only works if you wahs the bearing in petrol
[13:56:21] <Loetmichel> to get the grease out ;-)
[13:56:25] <XXCoder> no
[13:56:37] <XXCoder> just need stripped bearing (no grease!) and dc
[13:56:58] <Rab> XXCoder, yeah, it's really cool! But again, the bearing surfaces are destroyed pretty quickly through sparking.
[13:56:58] <Loetmichel> or have a cheap bearing that has cheap grease in it and dosent build a grease layer beween the balls and the rails
[13:57:27] <XXCoder> Rab: yeah too bad nobody figured how to make it last. its pretty amazing cheap and insanely high rpm
[13:59:09] * Loetmichel used to clean old rustiy railway axle ball bearings from the scrap bin at his first apprenticeship (way back then) and then put the blowout pistol at 20 bar into the cage... and watch the bearing spin up to ultrasound ... and pull the finger out...
[13:59:56] <XXCoder> lol
[14:00:00] <Loetmichel> it hits the fllor of the workshopp, sparks like crazy, picks up speed and hits the other wall in 50m distance at insane speeds that can embed some of the balls into the bricks ;-)
[14:00:33] <Loetmichel> you definetly dont want to stand there when the outer ring fractures ;-)
[14:00:52] <XXCoder> I bet. I wonder if there will ever be pracial applications to it
[14:01:32] <Loetmichel> ... things you do when young and crazy. ;-)
[14:02:11] <Loetmichel> i mean: that were used bearings, trown into the strash for some reason
[14:02:48] <Loetmichel> what if some of the 4" OD ring would have fractured from speed while still on the finger?
[14:04:15] <XXCoder> https://www.youtube.com/watch?v=DjKhggNJGls hmmm
[14:04:59] <dirty_d> actually this might be better http://www.linear.com/product/LTC2050
[14:05:06] <dirty_d> 3uV input offset voltage
[14:06:15] <archivist> dont want it to be too sensitive
[14:19:49] <dirty_d> archivist, it would be used as a comparator anyway
[14:19:56] <dirty_d> but i could also use it to measure the actual resistance
[14:20:04] <JT-Shop> nice my DX-32 control will just feed if you don't have a pitch for rigid tapping
[14:20:07] <dirty_d> just set the gain to something appropriate
[14:57:36] <FinboySlick> Wow, one of my friends made silicon aerogel with supercritical CO2 in his bathtub.
[14:58:06] <FinboySlick> Well, granted, the bathtub wasn't the container for the co2 but still.
[15:34:09] <JT-Shop> turns out the DX-32 is smarter than I was... I forgot to touch off the 3/4-10 tap
[15:34:33] <JT-Shop> good thing the spindle stalled
[15:36:57] <XXCoder> whew
[15:37:16] <XXCoder> once had smashed ball em into part and jaws
[15:44:33] <Jymmm> XXCoder: Kinky
[15:44:44] <XXCoder> lol
[15:44:48] <XXCoder> thats what she said too
[15:45:06] <Jymmm> XXCoder: She or they?
[15:45:50] <XXCoder> lol
[15:52:52] <JT-Shop> I wish my VMC control was a bit newer than a 386 processor
[15:53:19] <JT-Shop> then I would not have to use floppies to load G code files
[15:53:40] <XXCoder> I think I read something about fake floppies
[15:54:54] <XXCoder> JT-Shop: https://en.wikipedia.org/wiki/Floppy_disk_hardware_emulator
[15:58:33] <XXCoder> http://www.amazon.com/Sunwin-Simulation-Floppy-Emulator-Keyboard/dp/B009FX9DQU
[15:58:40] <XXCoder> this fakes 100 floppy disks
[15:59:06] <JT-Shop> cool
[15:59:25] <XXCoder> I guess buttons on front controls it
[15:59:50] <XXCoder> "YAMAHA KORG Keyboard" probably not standard pc one though
[16:00:22] <XXCoder> http://www.amazon.com/Floppy-Drive-Emulator-Emulator--Keep-Install/dp/B0083Z29JO/ref=sr_1_fkmr0_1?s=electronics&ie=UTF8&qid=1427488741&sr=1-1-fkmr0&keywords=ssd+simlation+floppy+for+pc
[16:00:27] <XXCoder> pc version
[16:07:11] <JT-Shop> too risky to mess with the machine PC board
[16:07:30] <XXCoder> do yours use standard connector for floppy drive?
[16:13:21] <JT-Shop> I can't remember
[16:13:43] <JT-Shop> I know it does not have the little power plug
[16:13:48] <XXCoder> hmm ok. just hope it isnt that weird properity thing
[16:16:29] <JT-Shop> I hope it doesn't break
[16:16:58] <JT-Shop> the drive is not one that is easy to convert
[16:17:34] <XXCoder> cant replace whole thing?
[16:19:50] <JT-Shop> yea you could replace the drives and servos and spindle
[16:20:06] <XXCoder> but not controller?
[16:20:11] <JT-Shop> I finally got the drive to stop tripping out by using a 20hp RPC
[16:21:10] <CaptHindsight> can fdutils create virtual floppy drives off a files on HDD?
[16:21:53] <jdh> you can mount floppy images via loopback
[16:22:09] <XXCoder> still not sure why MUST floppy drve
[16:23:43] <JT-Shop> if it had a network connection I would not need floppys
[16:24:05] <XXCoder> heh fadal 1988 machine I use has network
[16:24:11] <XXCoder> it think it's tape machine
[16:24:34] <XXCoder> when downloaded program it says "tape good"
[16:24:36] <jdh> what net protocol?
[16:24:44] <XXCoder> no idea
[16:25:30] <jdh> I have 386 boxes with nfs and smb
[16:26:31] <JT-Shop> the OS is a version of DOS and it has a color CRT
[16:26:38] <JT-Shop> they like purple
[16:27:03] <XXCoder> green monochrome on fadal
[16:27:20] <XXCoder> no idea if it uses some os or not
[16:27:45] <XXCoder> probably cnc program itself is a os
[16:28:08] <_methods> even if it doesn't have tape it will say tape good a lot of machines still refer to program as tape
[16:28:40] <XXCoder> its 1988 its definitely orginially had tape machine for it
[16:28:58] <_methods> probably not in the 80s
[16:29:16] <_methods> but who knows with fadal
[16:29:18] <XXCoder> it has hell of backlash too. dunno how it composed for it
[16:29:26] <XXCoder> compensated
[16:30:04] <jdh> I still have one PLC with a tape port
[16:30:05] <XXCoder> when im trying to find x/y by circle, it jumps maybe 1/2 thousand then more fine movements after
[16:30:32] <XXCoder> when changing direction I have to go past it a bit then go back then slowly get close to position I want it to be at
[16:30:54] <_methods> yeah i used to run old turret punch laser strippit combo machine that still had the tape input
[16:30:56] <XXCoder> or if distance is plenty just go forward, it will jump a bit then smoothly move forward
[16:31:06] <_methods> with the hecc80 controller lol
[16:31:12] <XXCoder> fun
[16:31:32] <XXCoder> fadal has one awesome thing over hurco though
[16:31:33] <_methods> it was still running
[16:31:38] <XXCoder> it has modify values
[16:31:50] <_methods> E is not cool
[16:31:59] <_methods> E = fadal is retarded
[16:32:01] <XXCoder> 2 to modfy value, select entry, put in -.0015
[16:32:29] <XXCoder> z is lower by .0015. no need to calculate and input it manually like at hurco
[16:32:29] <XXCoder> !
[16:32:40] <JT-Shop> this one is 92ish
[16:33:03] <XXCoder> E fadal I think I use it sometimes too
[16:33:13] <XXCoder> not too bad but strange hardware control screen
[16:36:34] <XXCoder> http://cncmilloperator.com/wp-content/uploads/2013/05/20130523_1644551-e1369715096256.jpg
[16:36:50] <XXCoder> that screen is in MUCH better condition than one i use lol
[16:37:13] <XXCoder> Someone added cardboard hood over it because its so dim
[16:37:46] <XXCoder> JT-Shop: http://www.tuffermfg.com/wp-content/uploads/2012/11/e_fadal.jpg
[16:38:00] <XXCoder> basically one I use. yeah e apparently
[16:39:01] <XXCoder> the strange hardware ui one is more modern fadal
[16:40:09] <JT-Shop> XXCoder, http://gnipsel.com/shop/unload-308/unload-308.xhtml
[16:40:13] <JT-Shop> that's mine
[16:40:38] <XXCoder> bridgeport nice\
[16:40:44] <XXCoder> though can tell its old
[16:40:58] <XXCoder> bigass pc montior for one lol
[16:41:43] <XXCoder> if dont mind, how much did you pay
[16:42:32] <JT-Shop> 6k
[16:42:50] * JT-Shop hopes the 3/4-10 tap makes it for 8 more pieces
[16:43:00] <JT-Shop> LOL I have more in tooling I'd guess
[16:43:14] <_methods> that's always scary
[16:43:21] <_methods> the ole i hope the tap makes it dance lol
[16:43:46] <JT-Shop> it's squeaking a bit now
[16:44:50] <_methods> buwhahahahhaha ellen pao gets nada
[16:44:52] <_methods> oops
[16:44:55] <_methods> wrong room
[16:47:14] <XXCoder> 6k interesting
[16:47:41] <JT-Shop> yep the tap is done for
[16:47:48] <_methods> bah that sux
[16:47:56] <_methods> you got more taps?
[16:48:05] <XXCoder> or all tapped out?
[16:48:09] <_methods> lol
[16:48:17] <andypugh> What controls G0 blending?
[16:48:48] <_methods> in linuxcnc?
[16:48:56] <andypugh> Yes
[16:49:19] <andypugh> Context: http://www.linuxcnc.org/index.php/english/forum/38-general-linuxcnc-questions/28034-traub-bosch-cc100-retrofit?start=90#57235
[16:50:30] <_methods> yeah that's normal in a rapid
[16:50:56] <_methods> it will try to move in the shortest route to the commanded position
[16:51:13] <_methods> but it's usually controller dependent
[16:51:21] <_methods> i'm not sure how linuxcnc handles it though
[16:53:26] <_methods> but you're post is correct from what i see
[16:53:30] <XXCoder> I wonder if it is possible to just gut old computer out of machine
[16:53:38] <XXCoder> then place modern pc with linuxcnc
[16:53:41] <_methods> s/you're/your
[16:54:05] <_methods> as long as they are not on the same line it should have made straight line moves
[16:58:38] <XXCoder> hey furrywolf
[17:02:21] <Deejay> gn8
[17:03:03] <Nick001-shop> G61 will stop the short cuts -exact path mode
[17:07:27] <_methods> in a rapid?
[17:08:16] <Nick001-shop> should - I do it at fash feed on a Hardinge
[17:08:25] <Nick001-shop> fast
[17:09:24] <Nick001-shop> data says it blocks the shortest path feature in the software
[18:00:44] <furrywolf> how do you remove sooty mold from citrus leaves? googling finds lots on how to keep it from coming back (kill the $#@ing insects), but not how to remove what you already have.
[18:04:00] <XXCoder> infinitely small. https://i.chzbgr.com/maxW500/6983741952/hFD679823/
[18:04:15] <Tom_shop> JT-Shop your VMC doesn't have serial?
[18:04:17] <XXCoder> fur whats that sensor that can also cause egr error called?
[18:04:29] <furrywolf> I finally got my greenhouse cleaned out enough to spray my lemon to reduce the scale problem, but the sooty mold doesn't want to come off, even with a good garden hose spray... hitting it hard enough to take it off seems to be about the same strength needed to take the leaves off.
[18:04:40] <Tom_itx> even most of the old controls had serial
[18:05:00] <XXCoder> fur all or some leaves? if its some small percentage as well as completely remove em
[18:05:07] <furrywolf> most
[18:05:11] <XXCoder> it will live on fewer leaves before regrowing
[18:05:24] <XXCoder> most not sure if it would be fine
[18:05:39] <furrywolf> only this year's growth is clean.
[18:06:07] <XXCoder> physical cleaning using rag?
[18:06:09] <furrywolf> hrmm, found two pages suggesting a good soak in natural soap... I have Dr. Bronner's...
[18:06:13] <furrywolf> it's a tree.
[18:06:22] <XXCoder> yeah hard one
[18:06:30] <XXCoder> large leaved small plants its possible
[18:06:36] <XXCoder> not those though
[18:07:51] <XXCoder> will it spread again if leave in?
[18:07:59] <furrywolf> ?
[18:08:24] <XXCoder> that sooty mold
[18:15:59] <XXCoder> that sooty mold
[18:16:58] <furrywolf> <furrywolf> "if leave in"?
[18:17:08] <XXCoder> oh
[18:17:12] <XXCoder> leave leaves as is
[18:18:16] <furrywolf> not if I kill the insects. but, it's dark enough it's blocking light to much of the plant.
[18:18:47] <XXCoder> yeah thats not good enough to leave as is
[18:19:20] <Jymmm> furrywolf: is the mold pailish white in color?
[18:19:59] <furrywolf> Jymmm: "<furrywolf> how do you remove sooty mold"...
[18:20:13] <Jymmm> that didn't answer my question
[18:20:17] <XXCoder> I menioned sooty mold again
[18:20:23] <XXCoder> sooty means very dark
[18:20:42] <Jymmm> try vinegar and water spray
[18:20:55] <furrywolf> apparantly you're not familiar with what sooty mold is.
[18:21:16] <furrywolf> if you don't know what it is, please don't offer suggestions on how to remove it.
[18:22:03] <Jymmm> \ignore furrywolf
[18:22:18] <XXCoder> found one suggestion, kill bugs and nothing on cleaning it out
[18:22:42] <CaptHindsight> is a flame thrower an option?
[18:22:44] <furrywolf> yeah, lots on how to kill bugs. so far the only thing I've seen on how to remove the mold itself is to spray with soap, let soak, then hose.
[18:22:48] <furrywolf> I might try on a branch.
[18:22:51] <XXCoder> better one http://www.na.fs.fed.us/spfo/pubs/howtos/ht_sooty/ht_sooty.htm
[18:23:19] <CaptHindsight> aerobic mold
[18:23:52] <XXCoder> oh for painted or plastic
[18:23:56] <XXCoder> not trees
[18:25:03] <XXCoder> "Prevention or reduction of high insect populations is the only recommended control for sooty mold."
[18:25:20] <furrywolf> yes, I know how to CONTROL it. I'm asking how to REMOVE it.
[18:25:22] <XXCoder> guess thats why all sites say get rid of bugs
[18:25:36] <XXCoder> so far, nothing on cleaning
[18:25:43] <XXCoder> most say just leave em
[18:25:51] <furrywolf> I have an effective spray for the bugs... I just didn't use it over this winter because I had too much crap around the greenhouse to spray, and now there's way too many bugs.
[18:25:52] <XXCoder> it will replace em witg clean leaves over time
[18:28:19] <CaptHindsight> all the articles say the same thing, the sooty mold just easily rinses off with water spray, the insects cause the mold so you have to remove both
[18:29:01] <XXCoder> maybe try just water spray see what happens?
[18:30:11] <furrywolf> <furrywolf> ... "but the sooty mold doesn't want to come off, even with a good garden hose spray... hitting it hard enough to take it off seems to be about the same strength needed to take the leaves off."
[18:30:20] * furrywolf gives up and goes off to try soap
[18:30:30] <XXCoder> Oh I missed that when I reread
[18:30:56] <CaptHindsight> with plant friendly surfactant
[18:31:03] <CaptHindsight> (soap)
[18:32:49] <Jymmm> soapicide
[18:34:10] <CaptHindsight> I'd say that dish soap or shampoos should work well if diluted
[18:36:02] <furrywolf> one branch sprayed with about a tablespoon of Dr Bronner's in a quart spray bottle. will let sit now.
[18:36:15] <furrywolf> as a plus, my greenhouse now smells like peppermint.
[18:36:15] <XXCoder> lets see what happens
[18:36:31] <furrywolf> even if it doesn't remove the mold, it'll kill a lot of the bugs.
[18:36:43] <XXCoder> you menioned that one sensor can cause egr flow error, but I dont remember what it is called?
[18:37:26] <furrywolf> whatever sensor your vehicle uses to monitor egr flow. :)
[18:37:39] <XXCoder> nice answer. you sure you dont work for microsoft? ;)
[18:37:53] <furrywolf> I don't even remember which vehicle you have. :P
[18:38:14] <XXCoder> http://alunthomasevans.blogspot.com/2007/10/old-microsoft-joke.html
[18:38:19] <XXCoder> first joke
[18:40:16] <furrywolf> as it turns out, I do not have the service manual for every vehicle memorized, nor do I even remember what you're working on... pull out your manual, read the egr section? :)
[18:40:38] <CaptHindsight> http://www.chemistrystore.com/Chemicals_A-Z-Chemicals_S-Z-1.html make your own soap, shampoo etc etc
[18:40:52] <XXCoder> yea but then some stuff is same on all. im not asking for exact position and so on, just what it is called
[18:41:05] <XXCoder> egr is called egr on all cars on it for example.
[18:42:00] <CaptHindsight> XXCoder: isn't egr open/closed vs proportional?
[18:42:16] <XXCoder> new to me
[18:42:19] <furrywolf> I don't know what your car calls it. If you tell me what it is, I could get a manual for it, and read the manual. it's usually some variation on "egr flow sensor".
[18:42:30] <XXCoder> ok. thanks :)
[18:42:40] <furrywolf> CaptHindsight: most modern vehicles it's proportional, and closed-loop.
[18:43:02] <CaptHindsight> I lost track after 73'
[18:43:12] <XXCoder> van is 1986
[18:43:15] <CaptHindsight> when they stopped making real cars :)
[18:43:15] <XXCoder> er 1996
[18:43:19] <XXCoder> lol
[18:43:38] <furrywolf> CaptHindsight: then you'll like my '68 truck. it doesn't have egr. :P
[18:43:51] <XXCoder> I read stuff about egr dummyout
[18:43:55] <XXCoder> pretty damn illegal lol
[18:44:16] <XXCoder> theres other kit that make cyclyist lie on ratio so it would pass tests
[18:44:36] <XXCoder> that riciously expensive part that burns leftover fuel
[18:44:44] <furrywolf> catalyst
[18:44:56] <XXCoder> yeah. thanks
[18:45:12] <furrywolf> cyclists are the very expensive things that run red lights and stop signs and dent your hood.
[18:45:34] <XXCoder> yep lol I dont run red lights though lol
[18:45:51] <XXCoder> I used to ride bicycles a lot. I miss it :P
[18:46:13] <XXCoder> my bicycle needs some maintance, its gears is worn after 500 miles+
[18:46:29] <andypugh> furrywolf: EGR flow is typically not directly measured. It in inferred from manifold pressure and MAF.
[18:47:14] <XXCoder> andypugh: what annoys me is that my van dont tell me if its not enough flow or too much
[18:47:23] <XXCoder> just p0400
[18:47:56] <ffurrywol> <furrywolf> catalyst
[18:47:57] <ffurrywol> <furrywolf> cyclists are the very expensive things that run red lights and stop signs and dent your hood.
[18:48:09] <XXCoder> yah saw those
[18:48:15] <andypugh> I don’t talk p-codes. I use tools that use real words :-)
[18:48:36] <CaptHindsight> furrywolf: my last one http://imagebin.ca/v/1wJg09MLJOQi
[18:49:05] <XXCoder> my car had massive increase of MPG after cleaning
[18:49:09] <XXCoder> I would say egr is working
[18:49:10] <ffurrywol> CaptHindsight: not my style.
[18:49:26] <ffurrywol> egr does not increase mpg. you probably cleaned other things...
[18:49:50] <XXCoder> well did 3 things, new termostat, cleaned IAC and EGR
[18:49:58] <XXCoder> trottle body was cleaned too. it was dirty as hell
[18:50:27] <andypugh> egr generally decreases MPG, but also massibely reduces NOx (and typically makes the engine run quieter)
[18:50:28] <CaptHindsight> family of raccoons from the engine?
[18:50:49] <andypugh> Did I post this link? Guess who is driving…. http://www.autocar.co.uk/car-news/new-cars/2015-ford-galaxy-exclusive-spy-pictures
[18:51:31] <ffurrywol> wow that's ugly.
[18:52:02] <XXCoder> meh
[18:52:25] <XXCoder> I dont care if my car would make people sick looking at it as long as it works good and gets me places
[18:52:27] <andypugh> I won’t be buying one.
[18:52:33] <CaptHindsight> a pain to refinish if crashed
[18:53:10] <andypugh> Well, the stickers are an attempt to hide the (ugly) lines.
[18:53:40] <ffurrywol> yep
[18:53:50] <ffurrywol> we can hope they're stickers, and not airbrushed...
[18:54:23] <andypugh> Laser-printed vinyl. They peel off in the rain above 70mph DAMHIK
[18:54:28] <zeeshan> hi
[18:54:29] <ffurrywol> didn't the mythbusters show that if you make an actual dimpled surface, it improves the gas milage? :)
[18:55:19] <XXCoder> they did
[18:55:42] * ffurrywol doesn't think stickers have the same effect
[18:55:45] <XXCoder> they had basic car, car with heavy dirt, car with heavy dirt, scopped pattern
[18:55:56] <ffurrywol> although people swear putting a sticker saying "v-tec" on your car adds 100hp.
[18:55:58] <XXCoder> "dirt" really clay
[18:56:14] <XXCoder> hey black lines make your car go faster lol
[18:59:06] <ffurrywol> Dr. Bronner's seems to work. Hosed down the branch I soaked, about 4/5ths of it came off.
[18:59:24] <XXCoder> not bad, it should make leaves work better
[18:59:36] <ffurrywol> I only have a 1gal pressure sprayer... I think I'll head to the hardware store later and get a larger one.
[18:59:40] <XXCoder> keep bug free and evenually those leaves drop off
[18:59:49] <ffurrywol> it might not even be a gal. 2qt? it's tiny.
[19:00:17] <XXCoder> google is worth shit for looking for car stuff
[19:00:37] <ffurrywol> yep, it's 0.5gal... 2qts. too little.
[19:00:45] <XXCoder> like I said before "oh Nissan Quest 1996?" Heres tons pics on utterly unrelated cars!!
[19:05:53] <XXCoder> ohhh
[19:05:54] <XXCoder> http://x.nissanhelp.com/forums/quest/319-96-p0400-code.html
[19:06:12] <XXCoder> apparently nissan quests has design flaw with one hose, it falls apart after 40k miles
[19:06:32] <XXCoder> I gonna buy silicine hose, it will last long time
[19:07:26] <andypugh> Yeah, if it’s a vacuum-controlled valve then that sounds like a plausible failure mode.
[19:07:54] <andypugh> I am not sure that silicone is the best choice. You need a hose that won’t collapse under vacuum.
[19:08:26] <XXCoder> "BPT VALVE BOTTOM HOSE"
[19:08:33] <CaptHindsight> https://www.youtube.com/watch?v=LC5ld79joIA just another commute to work
[19:08:55] <XXCoder> its not vaccum hose andy
[19:13:02] <andypugh> From the description on that forum it most certainly _is_ a vaccum hose
[19:13:09] <XXCoder> odd
[19:13:17] <XXCoder> because current rubber hose isnt rigid type
[19:13:21] <XXCoder> rest is metal
[19:13:45] <andypugh> It sounds like the EGR valve is vacuum controlled, and the tube in question is the vacuum feed to the control solenoid valve.
[19:14:11] <andypugh> Moderately thick walled rubber tube is fine for a vacuum hose.
[19:14:33] <XXCoder> yeah was thinking thick silicine hose
[19:14:39] <XXCoder> 1/4 apparently
[19:14:45] <andypugh> Moderatley thick-walled slicone should be too. But silicone tube is often thin and floppy.
[19:14:52] <XXCoder> yeah
[19:15:04] <ffurrywol> ok, 2qts and 2tbsps of dr bronner's peppermint applied to lemon tree.
[19:15:05] <andypugh> You can test it by sucking hard on it in the shop.
[19:15:26] <XXCoder> its not easy to access lol
[19:15:31] <XXCoder> its hardass actually
[19:15:50] <XXCoder> in least mpg got a huge bumo from 17.2 avg to 19.8
[19:16:00] <XXCoder> 2.5 mpg gain is big
[19:16:15] <XXCoder> funny because guy with hose issue is complaining about 19-20 mpg
[19:16:21] <XXCoder> so guess im at that stage now
[19:17:11] <zeeshan> i got a score of transformers today
[19:17:18] <zeeshan> about 300lb worth
[19:17:23] <zeeshan> in the school metal recycling bin
[19:17:23] <zeeshan> lol
[19:17:26] <jdh> transformers by the lb
[19:17:33] <zeeshan> ya man!
[19:17:37] <zeeshan> im gonna scrap em
[19:17:47] <zeeshan> three im keeping theyre by hammond manufacturing
[19:17:52] <zeeshan> 25VAC
[19:18:26] <ffurrywol> have a 48vac 500-750va one? or a 120-240 (or 240-480) autotransformer?
[19:18:40] <XXCoder> finally! page worth gold http://www.nissanforums.com/new-member-forum/27200-cel-code-p0400-egr-flow-malfunction.html
[19:18:58] <zeeshan> no
[19:19:00] <zeeshan> most of them are 3 phase
[19:19:01] <XXCoder> of course, being electrons, it weighs nothing so cant get any actual money :P
[19:19:03] <zeeshan> so pretty useless
[19:19:14] <XXCoder> isnt most cncs use 3 phase
[19:19:25] <zeeshan> yea
[19:19:29] <zeeshan> but not cnc's for retrofit.
[19:19:33] <zeeshan> at least mine i converted to single phase
[19:20:14] <ffurrywol> aren't three phase transformers three transformers?
[19:20:53] <zeeshan> wat
[19:20:55] <ffurrywol> XXCoder: electronics have mass (and therefor weight)
[19:20:58] <ffurrywol> electrons
[19:21:09] <XXCoder> ffurrywol: I know. its just dont weight enough to matter
[19:21:48] <andypugh> Oh my “NO! It was a little metal (brass?) piece that is round around the diameter and about as wide as the tube with this pinhole (yeah a pinhole in the middle)
[19:21:48] <andypugh> Now is this a dislodged valve part (EGR valve broken?) or is it supposed to be in the tube obstructing the flow? Great design!!! This pinhole won't flow nothin so I chucked it. “
[19:22:30] <XXCoder> manfold hole for egr is tiny too
[19:22:50] <XXCoder> ford contours is HUGE compared to it
[19:23:01] <andypugh> For reference, that was a vacuum damper that he threw away. Designed to slow down the movement of the EGR valve so it doesn’t slam against the end-stops and break itself. You want to keep that in the new tube.
[19:23:12] <furrywolf> lol
[19:23:22] <XXCoder> ow heh
[19:23:28] <furrywolf> or, more likely, it was to smooth the PWMed vacuum control solenoid.
[19:23:30] <XXCoder> good tip, thanks
[19:24:18] <furrywolf> zeeshan: some 3ph transformers are on a conjoined core that you'd need a saw to separate, others are three in one box...
[19:24:23] <andypugh> furrywolf: PWM frequency is likely to be much higher than the mechanical frequency of even the solenoid valve.
[19:24:35] <zeeshan> furrywolf: thats teh thing
[19:24:40] <zeeshan> the what do you call em..
[19:24:50] <zeeshan> laminations are made in a way that the copper goes around one
[19:25:34] <furrywolf> andypugh: no, because then it won't regulate the vacuum pressure. the valve itself isn't proportional - you don't want to try to hold it half open to vacuum, half open to atmosphere.
[19:25:37] <andypugh> (I get to _choose_ the PWm frequency for these valves)
[19:26:04] <furrywolf> instead you cycle it around 0.5-1hz, and smooth the vacuum
[19:27:33] <furrywolf> I mean, you could design a voltage-to-vacuum-regulator, and I know such products exist... I've just never seen one in a car. :)
[19:32:21] <andypugh> I am regretting not bringing the test car and laptop home this evening. I could have told you _exactly_ what the EGR valve PWM frequency is. I know what the PWM frequencies are for the actuators that it is my responsibility to choose the PWM frequency for. But EGR is calibrated by the guy who sits next to me.
[19:34:21] <skunkworks> it is fun when someone argues with an expert in the field...
[19:37:38] <SpeedEvil> Yeah - alas there are way too many people asserting knowledge they don't really have.
[19:37:47] <SpeedEvil> and too few experts
[19:38:19] <XXCoder> I dunno if I will ever be expert on anything ehh
[19:38:22] <XXCoder> *heh
[19:38:24] <andypugh> I am not claiming to be an expert. But Ford do pay me to do it :-)
[19:38:39] <SpeedEvil> :)
[19:39:25] <SpeedEvil> I have designed my own valve PWM timing. But it was for a sprinkler.
[19:39:53] <XXCoder> almost tempted to dummy out my van egr lol
[19:39:56] <XXCoder> so much hassle.
[19:40:48] <CaptHindsight> andypugh: any idea what micro Ford uses in the ECU's for those?
[19:41:06] <CaptHindsight> something custom for Ford?
[19:41:13] <andypugh> It’s an asymmetric tricore.
[19:42:29] <andypugh> http://www.infineon.com/cms/en/product/microcontrollers/32-bit-tricore!22-microcontrollers/tricore!22-architecture-and-core/channel.html?channel=ff80808112ab681d0112ab6b73d40837
[19:42:41] <CaptHindsight> yeah was just looking at those
[19:42:52] <CaptHindsight> VW and Mecedes also uses them
[19:43:31] <furrywolf> andypugh: a vacuum-controlled egr valve, or a direct solenoid one? the direct solenoid ones are high-frequency pwm, but the ones I've seen with vacuum have been low-frequency pwm. (note "what I've seen" tends to include 2000 and earlier)
[19:43:55] <furrywolf> just hosed down the tree... got maybe 50% of the sooty mold off. need to buy a bigger sprayer.
[19:44:06] <andypugh> A bit like the Machinekit approach, one powerful CPU to handle the interface, then a BBB to handle the slow realtime and a PRU for the fast realtime.
[19:44:08] <skunkworks> anyone happen to know how these work? http://www.ebay.com/itm/BIG-CAT40-LCP40A-LC-TOUCH-PROBE-XLNT-/121574031203?pt=LH_DefaultDomain_0&hash=item1c4e607f63
[19:45:07] <skunkworks> no external plug - there is just a wire from the probe plate to the fixed plate. (3 balls 3 pads)
[19:45:15] <andypugh> skunickoe
[19:45:21] <andypugh> Oops
[19:45:42] <andypugh> skunkworks: The probe otself or the interface
[19:45:43] <andypugh> ?
[19:46:07] <skunkworks> I don't know if LC actally mean inductor/capacitor - were the contact causes a change in the system that is detected..
[19:46:27] <skunkworks> andypugh: both - I have emailed the company - have not heard back
[19:47:14] <andypugh> Seems expensive. Do you actually have one?
[19:47:46] <skunkworks> 2 - he got them for $40 ish
[19:47:55] <furrywolf> bbl, errands
[19:48:08] <skunkworks> I think we can probably make them work with some re-wireing
[19:48:12] <skunkworks> http://www.big-daishowa.com/product_page/product_21_s-k-fa.php
[19:48:26] <skunkworks> if you look at the LC touch sensor on that page - you see a ring.
[19:50:39] <andypugh> furrywolf: I normally see EVRVs running at 1kHz or so. (No, I don’t actually know what the acronym stands for). Depending on the car they can control the turbo vanes, intake throttle, bypass valves, swirl valves, EGR valve. And any or all of those can be diretly electrically operated too, in what seems a totally random choice.
[19:51:30] <furrywolf> I'd guess electric vacuum regulator valve, or similar.
[19:51:52] <andypugh> skunkworks: Yes, that looks to be inductively coupled. Perhaps the resonant frequancy of an internal circuit changes when the contacts open?
[19:52:39] <furrywolf> I've seen them in industrial stuff, never in cars... but, as I said, most of the cars I see are 2000 and earlier.
[19:53:01] <andypugh> Was the car even invented in 2000 :-)
[19:53:17] <skunkworks> there isn't anything that I can see in the head other than a wire going from the stationary plate to the plate with the probe attached. So if there is something there it is under a bead of glue. The thing is pretty small - like 1" in diamter or a little more
[19:54:06] <andypugh> It could just be a coil and capacitor embedded in the body, and when the coil is shorted it has a different resonance.
[19:54:40] <furrywolf> bbl
[19:55:00] <skunkworks> unrea
[19:55:02] <skunkworks> unreal
[19:56:45] <skunkworks> I can't find the sensing ring anywere.. I do see http://www.ebay.com/itm/Daishowa-Seiki-Big-LCS-701-LC-Touch-Sensor-/360608170706
[19:56:59] <skunkworks> which seems like it is for that probe style
[19:57:55] <archivist> people who strip the machines probably dont realise they left a bit on the machine
[19:58:28] <skunkworks> mabye
[19:58:30] <skunkworks> maybe
[19:59:57] <archivist> it is also possible the couple some power into the probe for an internal oscillator
[20:00:59] <andypugh> I bought a Renishaw probe cheap from eBay. That had an inductive coupler. I didn’t have the reciever so I just wired it with wires to the controller: https://picasaweb.google.com/108164504656404380542/HarrisonMill?noredirect=1#5901893706748072338
[20:01:47] <andypugh> Though that is a home-made “magsafe” connector to save embrassment if the spindle starts: https://picasaweb.google.com/108164504656404380542/HarrisonMill?noredirect=1#5901893707657187586
[20:06:00] <andypugh> Night all
[20:06:28] <skunkworks> andypugh: we did the same thing with the one on the k&t - just wired the contactor out. http://electronicsam.com/images/KandT/probe/DSCF1507%5b1%5d.jpg
[21:41:09] <XXCoder> furrywolf: oh yeah! I got parts for stop/walk :) glad I got those, because van lights is badly wired! In least it was still worth wait.
[21:41:23] <XXCoder> Too bad I'll be too busy for few weeks to do anything for it.
[21:42:24] <XXCoder> enjoy great weekend everyone.
[21:44:20] <Cromaglious> I have a doggie in my lap, the mutt gets separation anxiety
[22:01:17] <furrywolf> meh! raining again.
[22:04:40] * furrywolf pets Cromaglious's doggie
[22:15:38] <georgenz> Im wanting to use a pot for max feed override. I have a 7i77 and noted that the input chanels 0-3 are able to be set as analog if I select the 7i77 to run on mode 1. In the pncconfig under I/O connector 3 I can see that its currently set to mode 0. But options are greyed for changing. Any ideas?
[22:16:53] <furrywolf> using pot for max feed override seems standard... every pothead I know is always talking about getting the munchies...
[22:17:42] <pcw_home> just edit the halfile and change the sserial mode for device 0 to 1
[22:17:55] <roycroft> the key is to snack out before lighting up
[22:22:12] <pcw_home> for example change the sserial port setting in the config string to
[22:22:14] <pcw_home> sserial_port_0=100xxx
[22:24:45] <georgenz> Is there an easy way to change it within pncconfig? Once the mode is changed, how do you assign max feed to it etc?
[22:25:59] * furrywolf needs a mesa board. :(
[22:26:10] <georgenz> Im trying to do everythong in pncconfig since if you need to go back into it, all yr other settings will be deleted
[22:26:44] <Cromaglious> sserial=100xxx 200xxx 300xxx aaaaaaaaaaare all possible settings
[22:27:14] * Cromaglious needs servo motors
[22:28:19] <Cromaglious> I was looking at software and planet cnc for USB is 290 for the software and $200 for the board
[22:29:05] <pcw_home> Once you have a pncconf config that's close I would just edit the hal file by hand
[22:32:15] <pcw_home> I dont think pncconf can make the hal bolierplate for analog (potentiometer)
[22:32:17] <pcw_home> feed rate override anyway so you will have to edit the hal file anyway
[22:35:05] <pcw_home> Once you have some fancy customizations you have to leave pncconf behind
[22:35:52] <georgenz> Ok... thx. I need to rewire my system am currently using all those pins
[22:36:30] <georgenz> Will get back to you on where to go once I have done that
[22:49:37] <furrywolf> my mill project is on hold for a while
[22:56:10] <georgenz> Also wondering if anyone is familiar with the xhc-hb04 wireless jog. I finally managed to get mine running, but it's so rough. The machine vibrates the concrete floor when I wind the handle. I have played with the coefs from 0.0001 right upto 1. All this seems to do is slow the response time down. It still makes the whole macjine shudder. The only way I have been able to mitigate it is slow my servo acceleration down which is less than ideal
[22:57:41] <pcw_home> are you passing the jog steps through a low pas filter?
[22:57:50] <pcw_home> low pass
[23:00:11] <georgenz> The coefs under low pass settings I have played with... from 0.0001 to 1 but it didnt help
[23:00:27] <georgenz> Are there any other settings I need to be aware of?
[23:00:53] <georgenz> There is a setting called scales. But Im not sure what it is
[23:01:36] <pcw_home> it should get very gentle acceleration when the filter coefficient is small
[23:02:24] <georgenz> The acceleration is very slow and lags the wheel by a lot when coef is turned down. But it still jumps from point to point
[23:02:47] <furrywolf> meh. one of my speakers is rattling. might need to repair it.
[23:03:23] <furrywolf> its mate needed the surround reglued a couple years ago...
[23:05:31] <pcw_home> if it jumps from point to point, something is wrong. maybe the scale is too small
[23:05:58] <georgenz> Tried scale... that just changes distance travelled per pulse... interestingly enough. When set to 0.1 it doesnt just divide by ten, just doesnt do anything till you have run ten notches
[23:06:25] <georgenz> Scale is correct, i can run it from 0.001mm to 1mm per click
[23:07:34] <georgenz> Is anyone running a big machine happly with one of these? It may be just because smaller machines dont have the grunt to shake the floor so no one notices?
[23:08:28] <pcw_home> I would look carefully at the hal file, maybe there's a pncconf mistake
[23:09:00] <furrywolf> waiting ten steps sounds like a bug
[23:09:25] <furrywolf> is there a setting to set what a step is, other than scale?
[23:09:57] <georgenz> Thats only if scale is set to 0.1 if set to 1 it steps per notch
[23:10:21] <furrywolf> if set to 1, what sets how much it moves per step? anything other than scale?
[23:10:35] <pcw_home> sounds like its not wired right in the hal file
[23:11:04] <georgenz> There is coef... but that just seems to slow rate of change, however my machine hits hard with each notch
[23:11:13] <georgenz> How so... what do i look for?
[23:11:59] <georgenz> It's working fine... like 10 steps is 10 steps, i can change acceleration in hal file and that sorts it
[23:12:08] <furrywolf> I want to build a jog box with three knobs on it, so you can pretend it's a little mini milling machine.
[23:12:50] <pcw_home> if you look at the ilowpass component you can see that the default scale is 1024 so I dont think scale does what you think it does
[23:12:59] <furrywolf> does it have a feed rate setting for the jog?
[23:13:23] <pcw_home> man ilowpass
[23:15:00] <pcw_home> the inputs and outputs of ilowpass are integers so scale _must_ be large
[23:15:25] <georgenz> Ok... will look
[23:16:12] <furrywolf> integers would explain why a 0.1 scale counts ten steps instead of moves 1/10th as much, but that's ugly. :)
[23:16:18] <georgenz> Cannot find ilowpass in hal
[23:16:25] <pcw_home> http://linuxcnc.org/docs/html/examples/mpg.html
[23:17:32] <pcw_home> ilowpass is behaving as it should (doing the best it can with integer I/O)
[23:18:12] * furrywolf wonders if there's an flowpass...
[23:18:44] <pcw_home> thats just lowpass
[23:19:47] <georgenz> Ok... i dont have a jog.hal file in my configs?
[23:20:26] <pcw_home> well you have jog code in your hal file, its probably just not right
[23:21:31] <pcw_home> maybe the pncconf jog boilerplate has a bug or two
[23:21:32] <georgenz> Likely...
[23:21:56] <georgenz> Likely my fault tho i meant
[23:23:15] <pcw_home> so the trick is the ilowpass scale must be set large so the filter will run a bit more smoothly than a pig on stilts
[23:24:12] <georgenz> Excellent... glad to hear there is a solution
[23:24:37] <pcw_home> the other part is that the jog increments must be divided by the ilowpass scale
[23:26:21] <pcw_home> if you scroll down in the example theres an example ilowpass setup
[23:28:12] <georgenz> Yeah... i saw that... but i dont have that file. Do I have to create the file and reference it?
[23:35:31] <pcw_home> I would look at it and your own hal file and see if the numbers make sense
[23:36:39] <pcw_home> ( you dont need a separate file the jog code is just part of your main hal file )
[23:39:21] <pcw_home> note this:
[23:39:22] <pcw_home> setp mux4.0.in0 0.0001 (since scale is 1000 this is 0.1" jog interval)
[23:39:24] <pcw_home> setp mux4.0.in1 0.00001 (since scale is 1000 this is 0.01" jog interval)
[23:39:25] <pcw_home> setp mux4.0.in2 0.000001 (since scale is 1000 this is 0.001" jog interval)
[23:41:07] <pcw_home> (scale above is ilowpass scale)
[23:44:36] <furrywolf> has youtube done something that breaks the "back" button?
[23:45:26] <furrywolf> every time I hit back, it just stays on the same page, still playing the video. checking the history shows the page gets duplicated every time I hit back...
[23:46:00] <pcw_home> I wouldn't doubt it, they own your eyeballs
[23:47:15] <georgenz> There isnt a mux term in my hal files
[23:48:13] <pcw_home> well not much of a jog wheel if you cant change the increment
[23:48:59] <georgenz> The increments can be changed... but jst did a search for mux and nothing
[23:48:59] <furrywolf> bah, and I find the video I was looking for... and youtube insists you need an account to watch it. it's a music video?
[23:49:03] <georgenz> Will look again
[23:51:00] <pcw_home> if you post your hal file I can take a look but tomorrow, getting sleeepppyy....zzzzzzzzzzzzzzz
[23:51:18] <furrywolf> I need to head to bed too, but the internet is pissing me off. (specifically, corporations)
[23:51:40] <pcw_home> you wont fix it tonight....
[23:51:49] <pcw_home> bbl sleep
[23:52:18] <georgenz> Talk later in the week. Thanks for yr help
[23:57:23] <furrywolf> only copies of the video I can find are flash.