#linuxcnc Logs
Jul 07 2017
#linuxcnc Calendar
12:00 AM cncnoob: MrTrick http://www.instructables.com/id/The-Hilsch-vortex-tube/
12:02 AM cncnoob: Make your own!
12:05 AM LeelooMinai: Or buy from China for fraction of the price: https://www.aliexpress.com/item/Vortex-Cold-and-Hot-Air-Dry-Cooling-Gun-with-Flexible-Tube-Aluminium-Alloy-145mm-LXM/32693497697.html
12:05 AM cncnoob: https://www.youtube.com/watch?annotation_id=annotation_82336&feature=iv&src_vid=Cu8X_jvpXn8&v=g30FgZFgDTM
12:05 AM cncnoob: 23C in, -13C on the cold side, 44C on the hot side
12:08 AM LeelooMinai: lol at that comment there: ""It's the same YET different because you add another hidden potential , a type of cold fusion reaction. You will know it as the GEET. I know cause I sell a similar device ... but I also have Atomic Agencies checking out my site ; ) so have fun !"
12:11 AM MrTrick: er whut?
12:11 AM MrTrick: oh, youtube comments? no surprises there.
12:12 AM LeelooMinai: Must be one of those "free energy" nuts that daze and confuse less tech-savvy people.
12:12 AM MrTrick: cncnoob: yes expensive, but eg $300 would buy a cooling setup, or a handheld plasma cutting system.... the first if suitable would look better.
12:12 AM MrTrick: in the results that come out
12:23 AM cncnoob: I'm also looking into a cooling system and can't decide between vortex or mist
12:23 AM cncnoob: I don't like the idea of chips being blown everywhere, and the vortex is probably much louder than mist
12:36 AM samsagaz: to make the drawing of the CNC machine recommend fusion? or is OK to use tools like sketchup?
01:33 AM MrTrick: oh geez sketchup
01:33 AM MrTrick: noooooo
01:33 AM LeelooMinai: Too bad that person is gone - was going to scream noooooo too:)
01:33 AM pink_vampire: router + air compressor + apartment = sawdust all over the fucking place!!!
01:45 AM LeelooMinai: Holy crap: https://www.youtube.com/watch?v=oWL0rGqOln0
01:46 AM LeelooMinai: Not sure how I got there:)
01:48 AM cncnoob: OMG, don't mess up that seal!
01:52 AM jesseg: archivist, you around?
01:52 AM archivist: hoooomeeee
01:52 AM jesseg: that harmonic indexer thing arrived...
01:53 AM jesseg: The ebay page had said it was used.. when I called the guy he said it was new on the shelf, and they were just tired of it sitting around..
01:53 AM archivist: some ebay items are bargains
01:53 AM jesseg: The grease inside is completely new. Bright yellow. Not turned dark from use at all.
01:54 AM archivist: the probe head I got a few days ago seems in very good condition
01:54 AM jesseg: But you're right, this thing does look perfect for a CNC indexer
01:55 AM archivist: that was Andy who mentioned the type not me
01:55 AM archivist: iirc
01:55 AM jesseg: ohhh andy yeah... sorry :D
01:55 AM archivist: he made some castings for them
01:55 AM jesseg: and Andy doesn't seem to be here.
01:56 AM jesseg: yeah
01:56 AM jesseg: I also got one of these: http://www.ebay.com/itm/272621531574
01:56 AM archivist: he is at work this time of day
01:56 AM jesseg: it's got an even bigger harmonic reducer and it has a *stepper* (LOL, 108 steps/turn for 15 fullsteps per degree counting the 50x harmonic.)
01:58 AM IchGucksLive: hi from Germany
01:58 AM archivist: they rarely seem that cheap over here so it is something I have not got yet
01:58 AM jesseg: so I'm considering making a two axis rotary table
01:58 AM jesseg: they are rarely that cheap anywhere...
01:59 AM jesseg: just gotta wait till someone who doesn't know what he's doing goes to sell one
01:59 AM jesseg: I guess
01:59 AM archivist: I used a right angle plate to put A on B
01:59 AM jesseg: A on B?
01:59 AM jesseg: mounted a worm indexer plate on another?
01:59 AM archivist: yes
02:00 AM jesseg: gotcha
02:00 AM IchGucksLive: im going to put a big electronics togeter this morning
02:00 AM archivist: jesseg, http://www.collection.archivist.info/archive/DJCPD/PD/2009/2009_05_27_cnc_making_pin_wheel/IMG_0252.JPG
02:00 AM jesseg: yeah I was going to do that years ago, I even got two Chinesium indexer units and actually mounted one on the other... but never put motors on them for CNC
02:02 AM archivist: cutting an escape wheel http://www.collection.archivist.info/archive/DJCPD/PD/2009/2009_05_26_cnc/IMG_0248.JPG
02:03 AM IchGucksLive: jesseg: with the UCO stuff its so easy to get a cool 5 axis see video animation http://heimwerkermarkt-tretter.de/ef_al.mpg
02:03 AM IchGucksLive: low cost high precision
02:04 AM IchGucksLive: im off 2 garden
02:07 AM jesseg: archivist, very cool! Thanks for posting!
02:08 AM archivist: you can see how things get close, head to rotary, dimensions and shapes matter more in 5 axis work
02:20 AM Loetmichel: mornin'
02:23 AM archivist: jesseg, but, then you get other factors and have to move things about http://www.collection.archivist.info/archive/DJCPD/PD/2013/2013_08_11_bevel/IMG_1632.JPG
02:24 AM archivist: that was generating an involute curve on a bevel gear
02:26 AM jesseg: cool...
02:27 AM archivist: so 6 axis or improve my maths and gcode :)
02:28 AM jesseg: lol
02:28 AM jesseg: my maths stinketh
02:29 AM jesseg: and my gcoding is worse :P
02:29 AM archivist: maths done so far http://www.archivist.info/gear/designbevel.php
02:30 AM archivist: the prototype did have errors so gave up to think about it for a while
02:31 AM archivist: curve looks right http://www.collection.archivist.info/archive/DJCPD/PD/2013/2013_08_16_bevel/IMG_1651.JPG
02:32 AM archivist: root of tooth too narrow thus mesh angle wrong http://www.collection.archivist.info/archive/DJCPD/PD/2013/2013_08_19_bevel/IMG_1655.JPG
02:33 AM jesseg: cool!
02:33 AM archivist: and stupid customer moaned about me using steel over brass
02:34 AM jesseg: LOL...
02:34 AM jesseg: what can you do.
02:34 AM jesseg: well I'm exhausted.. Good night!
02:34 AM archivist: one can sack the customer and not waste time on them
03:37 AM Deejay: moin
04:59 AM XXCoder: boo
05:00 AM Deejay: yo
05:00 AM XXCoder: whats up
05:01 AM Deejay: nothing special
05:01 AM Deejay: got some rain last night. but want more
05:02 AM XXCoder: heh land of forever sun here
05:02 AM Deejay: you live in the desert? ;)
05:02 AM XXCoder: it used to be loudy or rainy pretty often here in summers but not for decades now
05:02 AM XXCoder: biome is rainforest it's supposed to rain :(
05:02 AM Deejay: welcome climate change :)
05:03 AM XXCoder: indeed
05:03 AM XXCoder: too bad I live in mostly fact-free goverment country
05:04 AM Deejay: :/
05:45 AM jthornton: morning
05:47 AM XXCoder: hey jthornton
05:48 AM XXCoder: lol https://youtu.be/ZpoyoPSiB3M
05:53 AM jthornton: https://www.youtube.com/watch?v=iJxNK1enlZ4
05:53 AM XXCoder: ya saw that
05:53 AM XXCoder: awesome eh
05:53 AM XXCoder: cr10 seems quite nice.
06:11 AM jthornton: https://www.youtube.com/watch?v=LMn4ETyLpDc
06:12 AM jthornton: still leaves strings when jumping from one spot to another
06:12 AM XXCoder: yeah dont think strings is completely avoidable
06:12 AM jthornton: the wheel looks nice
06:12 AM XXCoder: though if set right its easy enough to clear up
06:34 AM XXCoder: later
06:38 AM jthornton: see you later
07:49 AM archivist: CMMs in private hand seems rare and sensible manuals
08:28 AM JT-Shop: some person sent me a link to a polish stamping machine and wanted me to give him/her step by step how to do that in LinuxCNC lol
09:21 AM archivist: unrealistic expectations error
09:58 AM Tom_itx: and you refused?!?!?
10:00 AM archivist: lets send all the silly questions to Tom_itx
10:00 AM * Tom_itx and he will fwd them to archivist
10:58 AM samsagaz: guys, which software recommends to
10:59 AM samsagaz: guys, which software recommends to create gcode to load into linuxcnc?
11:06 AM Deejay: text editor of choice :D
11:06 AM Deejay: of your choice ;)
11:08 AM samsagaz: i want to draw something and dont know which software can use to make the vectors and convert it into gcode :/
11:14 AM CaptHindsight: samsagaz: something like: http://www.thuijzer.nl/image2gcode/
11:14 AM archivist: samsagaz, look at the linuxcnc wiki, not many free CAM programs that are that good
11:15 AM CaptHindsight: https://www.youtube.com/watch?v=81Lz9RS1s4U
11:21 AM samsagaz: and what about paid ones? which are the best?
11:21 AM samsagaz: or good to learn?
11:22 AM archivist: depends on what you want to make, there is no best
11:22 AM samsagaz: ok
11:26 AM CaptHindsight: https://www.solidworks.com/sw/products/cam-packages.htm anyone ever work with this CAM package for SW?
11:26 AM CaptHindsight: wondering how it compares to Mastercam
11:30 AM samsagaz: wow, a lot of softs to choice
11:32 AM samsagaz: fusion360 are OK for CAM?
11:33 AM archivist: the owners have a habit of free for a while then onerous licensing terms
11:34 AM archivist: hook you into a rental scheme
11:44 AM m0n5t3r: samsagaz: I only know free ones: inkscape with the gcodetools extension works, but it's weird; f-engrave looks like it was written in the 90s, but is probably the only usable free v-carving thing out there
11:45 AM m0n5t3r: for actually making things I use freecad 0.17 (the development version), the CAM module works reasonably well
11:45 AM archivist: APT360 exists but has user base of not many and is older (1960's)
11:45 AM m0n5t3r: there is also cncjs, but I had mixed experiences with it
11:46 AM archivist: insiderearofskullcam is free as beer
11:50 AM archivist: there is also nativecam built in if you want it https://forum.linuxcnc.org/40-subroutines-and-ngcgui/31659-nativecam-is-features-renamed
11:52 AM m0n5t3r: I'll have to put linuxcnc on something beefier than the beaglebone for that :)
11:52 AM SpeedEvil: Or do PRU magic
11:53 AM m0n5t3r: it's already using one PRU for motor control, it would be useless otherwise
11:54 AM m0n5t3r: (not sure if all of the machinekit pru stuff is merged back into the linuxcnc base)
11:56 AM m0n5t3r: I'm waiting for buttons and MPG for the control panel, not sure if I should make it one self contained box (it's an MPCNC, so 1.7A nema 17, little ATX PSU) or split the power stuff in a separate box
12:08 PM IchGucksLive: hi from Germany
12:08 PM IchGucksLive: samsagaz: still on
12:11 PM IchGucksLive: m0n5t3r: go for a cheep xbox control it benefits 12 buttons and 8 movementcontroles
12:14 PM samsagaz: hi IchGucksLive
12:14 PM IchGucksLive: hi
12:15 PM IchGucksLive: what is the main work you gone solve
12:15 PM IchGucksLive: image (shapes) to Gcode
12:15 PM IchGucksLive: or real drawings
12:16 PM m0n5t3r: yeah, but it's clunky, and I have a touchscreen already :) (I have no idea how people can game with those things instead of mouse and keyboard :P)
12:16 PM IchGucksLive: then go for a 100USD XHX-HB04
12:16 PM IchGucksLive: it is awaysome
12:16 PM IchGucksLive: i use usb non wirerless
12:17 PM IchGucksLive: the wirerless resets all settings to default after 20sec unused
12:17 PM IchGucksLive: the usb dont
12:18 PM m0n5t3r: I was talking about control panel for touchy... I wouldn't use wireless anyway, if I make a pendant I'd rather have an estop button on it hardwired in the chain
12:18 PM IchGucksLive: m0n5t3r: here is my tutorial on wheezy and xbox using cnc https://youtu.be/Ox0s1rFGAH8
12:20 PM IchGucksLive: m0n5t3r: i did it also homemade on the cnc that uses it http://heimwerkermarkt-tretter.de/pcb_milling.jpg
12:20 PM m0n5t3r: so 7 in 1024x600 touchscreen + beaglebone + bunch of hardware buttons + encoder; if I was buying it for business it would be different, but I'm it for the learning :)
12:20 PM IchGucksLive: nano i2c
12:21 PM IchGucksLive: thats the bst part
12:21 PM m0n5t3r: also, having the machine cut its own control panel is kinda neat (it's GRBL + cncjs on an orange pi zero ATM)
12:21 PM IchGucksLive: samsagaz: did you get the info
12:22 PM IchGucksLive: today 's 5axis elektroil first mount http://heimwerkermarkt-tretter.de/ef_el.jpg
12:22 PM IchGucksLive: im not happy with it
12:22 PM IchGucksLive: but its the first out of 12
12:22 PM IchGucksLive: so it will be better
12:24 PM IchGucksLive: m0n5t3r: not all needs to be done at home
12:24 PM IchGucksLive: some parts better 2 buy at low cost
12:25 PM IchGucksLive: like a 4 axis tb6600 cabinet at low 100usd
12:26 PM m0n5t3r: I said cncjs earlier about CAM, meant jscut... cncjs is a host for grbl and friends
12:26 PM IchGucksLive: some stay on the old stuff like mee but sometimes modern tech is not that bad
12:30 PM m0n5t3r: the tb6600 "replacement" drivers are funny, BTW; technically the chip has better specs than TB6600, but then they put it on the wrong side of the board (so the heatsink makes contact with the plastic package) and they put slow optocouplers on it, so you're still at ~ 5 us/pulse if you want to be on the safe side
12:31 PM m0n5t3r: for my uses DRV8825 is enough, tho
12:32 PM IchGucksLive: the dq524 can go for less then 2us
12:50 PM IchGucksLive: im off
02:01 PM XXCoder: m0n5t3r: if youre using drv8825, I suggest you to look into tri diode smoothers because those have flaw.
02:02 PM XXCoder: you may even be able to increase speed with smoother
02:10 PM LeelooMinai_ is now known as LeelooMinai
02:13 PM LeelooMinai: samsagaz: I reccommend Fusion360 (it's free for hobbyists and startups). Sketchup - forget it imo: very bad idea.
02:15 PM LeelooMinai: samsagaz: As to open source/free ones - nothing really sane out there.
02:16 PM LeelooMinai: samsagaz: For editing g-code, I settled on Atom: it's a nice editor overall wioth a lot of plugins and ways to customize it. There's g-code syntax plugin.
02:19 PM * LeelooMinai wonders if samsagaz will do what most Linux people do and use something heart-stopping like FreeCAD + vi anyways
02:22 PM m0n5t3r: vim is better than vi :P
02:22 PM m0n5t3r: also, freecad is quite capable lately
02:22 PM XXCoder: editor war editor war!!
02:23 PM SpeedEvil: https://xkcd.com/923/ editor wars always make me think of.
02:24 PM LeelooMinai: m0n5t3r: https://goo.gl/LwSaK6 :)
02:25 PM m0n5t3r: www.userfriendly.org/cartoons/archives/99may/uf000621.gif
02:25 PM MrHindsight: spaces vs tab
02:26 PM LeelooMinai: m0n5t3r: Well, using echo to write a line to files is not that strange imo: I did it many times:) That cartoon forgot to mention sed to edit files:p
02:26 PM rene-dev: pcw_home: Im having a problem where a 7i84 always reports remote fault
02:30 PM XXCoder: m0n5t3r: yep was one of best on editor heh
02:30 PM LeelooMinai: Hmm, those Chinese makers are getting better and better. I ordered a microinverter and an RF device that has serial port with serial cable. So preemtivelly I also got some RS232 to USB cable, but now I see that the package already has some nice cable like that instead of normal COM one on the pictures.
02:31 PM LeelooMinai: They adapt, they listen:)
02:33 PM m0n5t3r: some of them
02:33 PM Simonious: where should I look for a gearhead stepper with 1600 oz-in?
02:34 PM jdh: google
02:34 PM LeelooMinai: Simonious: If can be China, then Aliexpress, etc.
02:34 PM m0n5t3r: some never learn: I can't believe they still put heatsinks on the plastic side of chips with a thermal pad
02:34 PM LeelooMinai: I get most my Chinese stuf from Aliepxress
02:36 PM LeelooMinai: m0n5t3r: They probably work, but a little.
02:36 PM m0n5t3r: I once got some steppers from an Aliexpress shop called "Carrie Smith's Chinese Boutique"
02:36 PM m0n5t3r: but they're rather expensive (probably because they sell leadshine stuff)
02:37 PM LeelooMinai: That's a pretty sophisticated name: I would more expect "Good Sunshine Shop" or something like that:)
02:37 PM pcw_mesa: rene-dev: which remote fault? ( I think there are at least 4 ;possible on a 7I84: overcurrent, wd timeout, overvoltage, and under voltage)
02:38 PM rene-dev: pcw_mesa: 8
02:38 PM rene-dev: 7i92 + 7i74
02:38 PM rene-dev: all new out of the package
02:38 PM LeelooMinai: The most lols I got from Chinese english is in some manual, where they consistently used "little indian" instead of endian
02:39 PM XXCoder: HOA hell http://www.tickld.com/x/fbk/people-share-their-worst-homeowners-association-horror-stories-
02:39 PM FinboySlick: pcw_mesa: You ever do signal processing, btw? I might need to pick your brain with something.
02:39 PM rene-dev: pcw_mesa: https://pastebin.com/gsxx3mDS
02:40 PM rene-dev: I can see the green led blinking on startup, then it stops, and goes back to red
02:44 PM pcw_mesa: Hmm maybe check 7I74 5V
02:45 PM rene-dev: 7i74 is powered by 7i92... and all the info gets read correctly
02:45 PM pcw_mesa: still, check 5V
02:46 PM pcw_mesa: and check 7I84 field power
02:47 PM rene-dev: field power and 5v is ok
02:47 PM rene-dev: just tried anotther 7i84, same issue
02:47 PM pcw_mesa: what is field power?
02:47 PM rene-dev: 24v
02:48 PM rene-dev: w1 left
02:48 PM rene-dev: 2 yellow and 1 red
02:49 PM pcw_mesa: What OS/host hardware?
02:51 PM rene-dev: debian 7
02:53 PM rene-dev: if you think its a jitter issue, how can I disable the watchdog for a test?
02:57 PM pcw_mesa: jitter would have to be fairly terrible (Wd default is 50 ms)
02:57 PM XXCoder: why? you want computer as busy as possible when doing jitter test
02:58 PM XXCoder: I usually run large as possible HD video running, couple glxgears running, few other stuff running
02:58 PM XXCoder: moving one window so it constantly redraws windows
02:59 PM LeelooMinai: XXCoder: Just rine Minecraft imo:)
02:59 PM LeelooMinai: run*
02:59 PM XXCoder: lol probably
02:59 PM XXCoder: or ksp, launch some 1,000 part ship
02:59 PM pcw_mesa: maybe some setup error (the location of the error at driver startup is suspicious)
03:03 PM rene-dev: pcw_mesa: yes, happens instantly every time
03:04 PM Vitran: I am trying to interpret and implement the only info I got from Rob_h on how to get the turret on the Hardinge to work. As is, LinuxCNC is not happy with that HAL code and says the pin wsum.0.bit.0.in does not exist. I changed the input to hm2_5i25.0.7i64.0.2.input-15 and I have been having fun getting my ladder code to work, but I can't get this wsum thing to work http://i.imgur.com/RzLlWhT.png
03:04 PM rene-dev: tried multiple 7i84, on different ports
03:04 PM pcw_mesa: its likely some kind of setup issue i've not seen before
03:04 PM rene-dev: hardware or software?
03:04 PM pcw_mesa: wrong mode?
03:05 PM rene-dev: mode is 0
03:05 PM rene-dev: CONFIG="sserial_port_0=00000000 sserial_port_1=00000000"
03:05 PM Vitran: I'll be the idiot and ask, could it be plugged into the parallel port instead of the 5i25?
03:07 PM rene-dev: pcw_mesa: now im using CONFIG="sserial_port_0=xxxxxxxx sserial_port_1=0xxxxxxx"
03:07 PM rene-dev: so only one active
03:07 PM rene-dev: oter sserial devices work fine...
03:09 PM rene-dev: if I set mode to something invalid it correctly reports that
03:09 PM rene-dev: error = (30) Illegal Remote Mode
03:18 PM pcw_mesa: field power to both A and B sides?
03:48 PM Deejay: gn8
03:49 PM LeelooMinai: lol @ the dude who escaped a max-security prison: "Causey used a cell phone in the escape, and investigators believe a drone flew in the wire cutters. Causey cut through at least four fences with the wire cutters, Stirling said."
03:50 PM XXCoder: lol
03:50 PM XXCoder: welcome to modern age
03:50 PM XXCoder: I read one about trained bird bringing drugs in to prison
03:50 PM LeelooMinai: Apparently it's the second time he escaped - he did on 2005 too.
03:51 PM LeelooMinai: One thing I wonder about is how they did not notice a drone... Must have been a gliding drone or something, because normal quadcopter makes tons of noise.
03:52 PM XXCoder: http://www.cartoonistgroup.com/properties/bizarro/art_images/cg551ef25e97c86.jpg
03:58 PM pcw_mesa: rene-dev: I think I figured it out
04:02 PM pcw_mesa: There seems to be a bug in the driver when you have sserial port 1 used but not sserial port 0, so this only shows up if you have
04:02 PM pcw_mesa: no sserial devices on port 0 and sserisl device on port 1. Not sure if this is a bug in master only, will need to test 2.7
04:18 PM LeelooMinai: Anyone with cheap endoscope that can be recommended? I see tons of those everywhere, wi-fi and not, different specs, etc. Super useful potentialy, but the tough part is getting one that will have low latency, decent software, etc....
04:18 PM LeelooMinai: I mean something like that: https://www.aliexpress.com/item/Armgroup-Wifi-Endoscope-Camera-Android-720P-Iphone-Borescope-Camera-Endoscopic-Semi-Rigid-Hard-Tube-and-Softwire/32815807400.html
04:18 PM m0n5t3r: LeelooMinai: there was a news story recently that someone tried to fly a cellphone inside a prison around here (Romania), some guard saw it and swatted it down with a broom
04:19 PM LeelooMinai: m0n5t3r: Are you sure it was not a Benny Hill sketch? :p
04:19 PM m0n5t3r: sure sounded like it :)
04:19 PM XXCoder: LeelooMinai: OI bought one, its worse than pototo cam quality
04:21 PM LeelooMinai: m0n5t3r: Now, to be fair, I think it was on battlebots: one robot had a little drone that would fly and I think use torch as a weapon. So, the other guys quickly attached a rake (like a normal garden rake) to theirs and they actually got lucky and swatted the drone from the air with it:)
04:21 PM LeelooMinai: Was pretty hilarious.
04:23 PM LeelooMinai: XXCoder: But this particular one? You know, I do not expect 4K quality really - even low quality one will still be useful if you really need something like this.
04:23 PM XXCoder: they're probably all same
04:23 PM XXCoder: but dunno
04:23 PM LeelooMinai: I wish I had something like this in the past in quite a few cases - like when I was doing work inside the walls, etc.
04:24 PM LeelooMinai: Hmm, I wonder if one can swallow it and see inside the stomach:p
04:25 PM XXCoder: just make sure to clean it before and after lol
04:25 PM LeelooMinai: I will just eat some Tums to make acidity lower:)
04:26 PM XXCoder: heh it probably will come with all kinds of fun stuff on surfaces
04:28 PM LeelooMinai: Hmm, I wonder what is hardwire vs softwire - if harfwire is like a wire that you bend and it stays more or less in place.
04:28 PM LeelooMinai: Hmm, seems so.
04:29 PM LeelooMinai: Damn, some are like $6 - that's a bit crazy.
04:30 PM XXCoder: cheap yeah
04:30 PM XXCoder: I wonder if they had HUGE batch that didnt pass qa
04:30 PM XXCoder: so reselling cheapoly
04:30 PM LeelooMinai: Maybe - I will get a bit more expensive probably, hoping it will be better.
04:42 PM * Jymmm sells XXCoder cheapoly ;)
04:42 PM XXCoder: lol
05:48 PM * JT-Shop has to play musical shelving to keep everything in line lol
05:57 PM codepython777: I need to shave 1-3mm of steel from a 18mm (dia) x 100mm circular shaft for mounting the shaft on a wheel. Can anyone recommend the correct tool for this? I do not have a lathe, but can buy one for just this tooling.
05:58 PM Cromaglious_: lathe is the correct tools
05:58 PM Jymmm: drill press and sand paper?
05:59 PM Cromaglious_: it can be done on a mill with a rotary table
05:59 PM Jymmm: pay soeone to do it for you?
06:00 PM codepython777: Jymmm: is there an online shop that does this kind of thing?
06:00 PM Cromaglious_: hmm 100mm is 4" so you could put a lathe tool in the vice and chuck the shaft in the spindle of a mill
06:00 PM Jymmm: ...like a 12" midget with a hangover!
06:00 PM XXCoder: use drill press as lathe
06:00 PM Jymmm: codepython777: Any ocal macine shop I would think
06:00 PM Jymmm: local
06:00 PM Cromaglious_: codepython777, where you at?
06:00 PM andypugh: If you need to hold tight tolerances and get a good finish then the very cheapest mini-lathes might not be good enough.
06:00 PM Jymmm: hit up the local college
06:00 PM codepython777: Cromaglious_: FL, US
06:01 PM Cromaglious_: local machine shop..
06:01 PM andypugh: codepython777: If you are talking about buying a lathe then I guess you are talking about more than a one-off? Or do you just want an excuse to buy a lathe?
06:01 PM Cromaglious_: or ask at the vfw hall
06:02 PM andypugh: BeachBumPete: You are in Florida, with a lathe, are you not?
06:03 PM Cromaglious_: if your in Pensacola there is booth machine shop... aka ABOM79 on youtube
06:04 PM Cromaglious_: Groveland has Dorite Fabrication Jim Bollinger
06:05 PM andypugh: codepython777: But, really, you should buy a lathe. Life is better with a lathe. Better still with a lathe in every room.
06:05 PM codepython777: Any recommendation on which one should I get for the application at hand?
06:06 PM andypugh: Not this one, this belongs in the kitchen: http://www.lathes.co.uk/apple/
06:06 PM andypugh: codepython777: Just about any lathe ever made can do the job at hand.
06:07 PM andypugh: But then the question is how many you need to do, what material, what tolerances and surface finish.
06:07 PM andypugh: And how much space you have for it, if you want to cover for future work.
06:07 PM codepython777: andypugh: In this batch I'll probably profile at least 10 of these shafts.
06:08 PM codepython777: tolerances, I think I can live with .1mm - but I am not sure yet?
06:08 PM codepython777: I need to put this shaft in a bearing, I am not sure how much tolerance precision one needs when putting a shaft into a bearing. The bearing is a 6003rs.
06:10 PM andypugh: That’s something that you can get from the bearing catalogues. But typically (in metric-land) that would be a h7 shaft.
06:10 PM andypugh: https://simplybearings.co.uk/shop/Info-Pages/ISO-Limits/c4746_4779/index.html?page=1
06:10 PM * JT-Shop waves at Andy
06:11 PM andypugh: For h7 and 18mm that’s 18 -0 -18 (ie, 17.982 to 18.000)
06:12 PM andypugh: So, you want 0.02mm accuracy (.0005”)
06:13 PM BeachBumPete: andypugh huh? yeah I am in Florida and have a lathe LOL
06:14 PM andypugh: codepython777: I might be going off in the wrong direction here. I am (perhaps wrongly) assuming that you want the bearing to push on to the shaft and not spind loosely on the shaft (ie to ensire that it is the bearing that spins)
06:16 PM andypugh: Actually, right at the bottom of that page, it says h6 for a bearing (assumed H7 bore)
06:16 PM andypugh: That’s a slightly closer tolerance
06:16 PM codepython777: andypugh: I need the shafts to push inside them tightly. I've a wheel that I am trying to fit the shaft too. The wheel has 15mm and 17mm shafts. So I was thinking of getting 18mm shafts and shave it,
06:17 PM XXCoder: if bearing was loose wouldnt that also cause part attached to it loose also, generating noise and likely wear faster too?
06:18 PM andypugh: OK, so your shafts need to be exactly 18mm or 0.02 smaller. So you need a semi-decent lathe. Depending on the opertor you might need a very good lathe :-)
06:19 PM XXCoder: there exists someone restoring hot wheel cars. https://youtu.be/_dvSAXEjP_U
06:30 PM andypugh: He replaces the rivets with screws and changes the colour, that’s a customisation not a restoration :-)
06:30 PM XXCoder: he tried to match apparently as later he says he failed
06:31 PM XXCoder: https://www.youtube.com/watch?v=_G4PyibedPg
06:34 PM XXCoder: this one definitely customize, orginially blue and now purple
06:37 PM XXCoder: customization rather than "restore" https://www.youtube.com/watch?v=dzK_yo1qx2M
08:21 PM robotustra: hi
08:21 PM XXCoder: hey
08:21 PM XXCoder: https://www.youtube.com/watch?v=TAXrq47l_U0 HUGE fidget spinner lol
08:23 PM andypugh: XXCoder: I wonder what it would cost to buy those bearings?
08:23 PM XXCoder: no idea. 10" od apparenrly
08:23 PM robotustra: who is the author of linuxcnc documentation?
08:24 PM robotustra: there is some errors in the text
08:24 PM andypugh: Everyone can be
08:24 PM robotustra: there are some errors in the text
08:24 PM andypugh: It’s an open-source prject
08:25 PM andypugh: If you want, you can fix the errors and then submit a pull-request through Github
08:25 PM robotustra: page 20/711, the line above 3.3.2 section
08:25 PM andypugh: (or you could just tell us)
08:25 PM robotustra: andypugh: never did this before
08:26 PM andypugh: Well, firstly. Which document?
08:27 PM robotustra: LinuxCNC 2.7.9-18-g515c0a6
08:27 PM robotustra: 2017-06-29
08:27 PM andypugh: OK.
08:28 PM andypugh: We need that, but also which section of the docs?
08:28 PM andypugh: I guess you are using the PDF docs?
08:28 PM robotustra: 3.3.1.4
08:28 PM robotustra: the last line of the text, equation
08:29 PM robotustra: 25/10 = 0.025
08:29 PM andypugh: What’s the title of the document you are looking at?
08:29 PM robotustra: LinuxCNC 2.7.9-18-g515c0a6
08:30 PM robotustra: this is a title, I think it's autogenerated pdf
08:30 PM andypugh: There are 11 “volumes” of PDF docs, and the HTML docs are split like this: http://linuxcnc.org/docs/2.7/html/
08:31 PM robotustra: Important user concepts
08:31 PM robotustra: Trajectory control
08:31 PM robotustra: Planning moves
08:31 PM robotustra: section 3.3.1.4, last line
08:31 PM andypugh: Got it
08:32 PM robotustra: should be 25/100 = 0.025
08:34 PM robotustra: And who wrote the text?
08:35 PM robotustra: It written in a manner that it's very very difficult to translate into russian
08:36 PM XXCoder: "who" is rather hard question to answer
08:36 PM XXCoder: open source many people tend to work on docs
08:36 PM robotustra: The style of the document is very hard
08:36 PM XXCoder: that is if people actually work on it, docs tend to be old
08:36 PM robotustra: looks like the person who did it never ever wrote good articles for live people
08:37 PM robotustra: I was trying to save the style, but I worry that I'll do my own interpretation and make it more comfortable for russian reading
08:38 PM robotustra: usually english text is consize with comparison to equivalent russian centance
08:39 PM robotustra: but here - I can formulate much more elegant and short than it's written in English
08:39 PM robotustra: and water... to much water
08:40 PM robotustra: this document could be shortened 2 times without loosing a bit of meaning
08:41 PM andypugh: Are you working on a Russian translation?
08:41 PM robotustra: yes, for my own
08:41 PM andypugh: Would you like to write it for everybody?
08:41 PM robotustra: not sure I want it
08:42 PM robotustra: yet
08:42 PM robotustra: I'm not sure I drop this document half translated
08:42 PM andypugh: OK
08:43 PM andypugh: Some of the developers are Russian. (Pavel Shramov, for example)
08:43 PM robotustra: developers are not always like to write or trnslate documentation
08:44 PM robotustra: I don't like either, butI would like to understand lcnc as good as i can
08:44 PM andypugh: Are you aware of http://www.cnc-club.ru/forum/index.php ? SOme of the chaps there know LinuxCNC rather well
08:45 PM robotustra: yes I know but it's emc2
08:45 PM robotustra: older version
08:45 PM andypugh: Huh?
08:46 PM andypugh: Anyway, I fixed the problem you found: http://git.linuxcnc.org/gitweb?p=linuxcnc.git;a=blobdiff;f=docs/src/user/user-concepts.txt;h=711cef4e03b61f6bcc4803431beef0dff6d23fd7;hp=039d6544d6fb0013968e58ccf08b9d49ecb11ca9;hb=9bbb2bc82bdbf71d909ba57cdf91e24d4f115a08;hpb=ddb14e96c713c745588691781432f314e7560345
08:48 PM robotustra: I saw that document
08:48 PM robotustra: thanks
08:48 PM robotustra: for fix
08:49 PM robotustra: last changes in that manual are made in 2014
08:51 PM robotustra: this pdf file - is it compiled with latex?
08:51 PM robotustra: I mean lcnc documentation?
08:51 PM andypugh: asccidoc
08:53 PM robotustra: is it kind of mardown for latex?
08:53 PM robotustra: but how do you write formulas in the document?
08:55 PM robotustra: ok, got it, you don't need formulas
08:56 PM robotustra: hm, I like asciidoc
08:57 PM robotustra: thanks
09:25 PM rene-dev: andypugh did you read about the hostbot driver bug?
09:25 PM andypugh: No
09:25 PM rene-dev: [22:31:38] <pcw_mesa> There seems to be a bug in the driver when you have sserial port 1 used but not sserial port 0, so this only shows up if you have
09:25 PM rene-dev: [22:31:40] <pcw_mesa> no sserial devices on port 0 and sserisl device on port 1. Not sure if this is a bug in master only, will need to test 2.7
09:26 PM rene-dev: this is my problem: https://pastebin.com/gsxx3mDS
09:26 PM rene-dev: I have one device connected to port 1
09:26 PM rene-dev: CONFIG="sserial_port_0=xxxxxxxx sserial_port_1=0xxxxxxx"
09:27 PM andypugh: What happens if you enable one channel on port zero but don’t connect any hardware?
09:28 PM rene-dev: if I dont connect any slave I obviously dont get a remote fault...
09:28 PM rene-dev: but enabling all channels, and only have one slave on the second instance is the same problem, always remote fault on startup
09:29 PM rene-dev: instantly
09:29 PM rene-dev: CONFIG="sserial_port_0=00000000 sserial_port_1=00000000" gives me the same result
09:30 PM rene-dev: setup is 7i92 + 7i74 + 7i84
09:32 PM andypugh: OK, so it finds the hardware, but errors when trying to run it?
09:32 PM rene-dev: yes
09:33 PM andypugh: Do you get the HAL pins? I assume you do?
09:33 PM rene-dev: yes
09:33 PM rene-dev: init is all ok
09:33 PM andypugh: IS the problem with the read function or the write function, or both?
09:33 PM rene-dev: I see the green led flashing for about 0.5 seconds while linuxcnc starts
09:33 PM rene-dev: how can I tell?
09:34 PM rene-dev: if I remove them from the thread the card will go into timeout, I guess...
09:35 PM rene-dev: it even tells me all the modes it has... so communication is working
09:35 PM andypugh: I think that the watchdog is on the write thread, so removing the read thread might (or might not) give us a clue
09:35 PM rene-dev: let me test
09:39 PM rene-dev: https://pastebin.com/ugLXsHsr
09:39 PM rene-dev: its complaining about read not running...
09:39 PM rene-dev: still red led
09:40 PM andypugh: And I would guess that with only the read function you would get a watchdog bite. Ah well.
09:41 PM andypugh: I have had a 3am, 4 pints, look at the code and nothing is leaping out at me. I am afraid this isn’t going to get fixed tonight.
09:42 PM rene-dev: is it not :D
09:42 PM rene-dev: it will fix itself when the 7i77 arrives^^
09:43 PM andypugh: Well, not really, the bug will still exist
09:43 PM rene-dev: yes yes
09:43 PM andypugh: I do have a suitable testbed to work in it with.
09:43 PM rene-dev: ok, maybe another day. thanks for looking into it.
09:44 PM andypugh: It’s gone to the top of my list.
09:44 PM rene-dev: I looked at the code, and could not see anything obvious... sounds fun
09:44 PM rene-dev: Im suprised it hasnt shown up before
09:46 PM andypugh: I would guess that the vast majority of configs only have one port
09:47 PM rene-dev: yes, you can already do a lot with one port
09:47 PM rene-dev: https://i.imgur.com/Q6lpjIe.jpg
09:48 PM rene-dev: https://i.imgur.com/Srg2FxG.jpg
09:48 PM rene-dev: its for this project :)
09:49 PM rene-dev: unfortunately, with 90A spindle servo, it is out of the stmbl product range.
09:50 PM andypugh: Can you run them in parallel?
09:51 PM rene-dev: no, you cant paralell igbts
09:51 PM andypugh: I bet you could! It just might get a bit expensive.
09:52 PM rene-dev: no, with mosfets you have a resistrance, and with 2 each gets about half the current.
09:52 PM rene-dev: igbts have drop, and the one with the lower drop will get all the current
09:53 PM rene-dev: might work, but not 50:50
09:53 PM rene-dev: but interestingly, the original amp is split up for the spindle
09:53 PM rene-dev: one does 1 phase, another one the 2 other phases
09:53 PM andypugh: I was suggesting that you could definitely parallel them, but that sparks and smoke might follow.
09:53 PM rene-dev: the 150A version uses one amp for each phase
09:54 PM rene-dev: probably, never tried :D
09:54 PM rene-dev: but a more powerful powerstage is on the todo list
09:56 PM andypugh: Big thermionic valves. For higher-fidelity CNC :-)
09:57 PM rene-dev: probably gives much better surface finish
09:58 PM rene-dev: but only if you buy the expensive directional cable
09:59 PM andypugh: Even worse than HiFi: http://quwave.com
10:02 PM rene-dev: aaah
10:02 PM rene-dev: who knows, maybe there is a market for such products for cnc machines :D
10:42 PM pcw_home: rene-dev: as far as I can tell you can fix the problem by having at least one active device on port0
10:44 PM rene-dev: Yes, that would be the 7i77 which is still in the mail
10:44 PM pcw_home: so its an unlikely situation so the bug may have been there for a long time
10:44 PM rene-dev: But its still a bug
10:44 PM pcw_home: Certainly
10:45 PM pcw_home: but the normal situation is to use port1 when port0 is used up so its not commonly run across
10:47 PM rene-dev: You think it's in the driver?
10:47 PM pcw_home: yes
10:48 PM rene-dev: Me and andy had a quick look and could not see anything obvious.. needs investigation. You have any idea in particular?
10:49 PM pcw_home: My guess is that there is something missed on startup when port1 only is present
10:50 PM pcw_home: also possibly a long delay that lets the remote watchdog bite when only port 1 has an active device
10:52 PM pcw_home: one possible (somewhat ugly) way to trace this is with tcpdump
10:54 PM pcw_home: I still need to try this on 2.7 in case its recent breakage
10:55 PM pcw_home: probably tommorow
10:55 PM pcw_home: too hot to do anything tonight