#linuxcnc Logs

Nov 09 2017

#linuxcnc Calendar

12:53 AM McBird is now known as Guest70094
01:02 AM IchGucksLive: good morning rain in germany
01:02 AM gloops: hi
01:03 AM IchGucksLive: ;_)
01:04 AM IchGucksLive: hi necronian
01:06 AM IchGucksLive: gloops: near to 100k hits now
01:06 AM gloops: on the BOB tutorial?
01:06 AM IchGucksLive: 14k
01:07 AM IchGucksLive: the hype on 3d printers is still going
01:07 AM gloops: it helped me, i couldnt see what was happening until i watched it
01:08 AM IchGucksLive: Loetmichel: already working
01:08 AM gloops: printers are probably more popular because they are like desktop suitable, someone in a high rise flat can use a 3d printer
01:08 AM gloops: they cant really use a router or mill
01:08 AM IchGucksLive: dont think so
01:09 AM IchGucksLive: plasma woudent be ok but small even 6040 will work
01:10 AM gloops: you have noise and chippings and stuff
01:16 AM gloops: just looking at resonance with 1605 screws, 1000rpm for 3 bearings, 1500 for 4 bearings, or 2000+ for rotating nut
01:21 AM IchGucksLive: my max is 1250mm on ball
01:21 AM IchGucksLive: then i go rack pinion
01:22 AM IchGucksLive: as 5:1 is quite cheep
01:22 AM gloops: 5mm pitch screws Ichs?
01:22 AM IchGucksLive: rack is standard 3meter
01:23 AM MarcelineVQ: gloops: they're also a fair bit quieter, printers
01:23 AM IchGucksLive: look at the price tag on TR 3meter http://www.maedler.de/product/1643/1620/2028/2031/trapezgewinde-spindeln-eingaengig-rechts-stahl-laenge-3m
01:23 AM MarcelineVQ: oh you said noise hehe
01:24 AM IchGucksLive: MarcelineVQ: and if boxed they are better also
01:25 AM gloops: Marcel yes thats what i think, 3d printing is an interesting technology anyway but i imagine for someone with noise or space limitations 3d printing would a way they could use cnc
01:26 AM gloops: i wish had gone with leadscrews really, i could have got 25mm leadscrews for less than these ballscrews
01:26 AM gloops: but ive got what ive got now
01:28 AM IchGucksLive: and you are fine with
01:30 AM gloops: yes, just need time to build now
01:31 AM IchGucksLive: im off
01:48 AM miss0r: I managed to complete the task at hand last night. I ended up using a boringhead to take the holes from 18.15 to 18.5, then using the canned cycle for tapping. It all went well and I didn't break any tools :o But the clock hit half past one before I got to bed (sucks) archivist SpeedEvil
02:10 AM rc-heli: Hallo, wie kann ich in Linux eine Adresse für Modbus Seriell auslesen?
02:13 AM archivist: miss0r, canned drill ?
02:13 AM archivist: or does that old control vave tapping
02:13 AM miss0r: archivist: that as well
02:14 AM miss0r: It does have a canned cycle for rigid tapping
02:19 AM archivist: been thinking do I make a plate to replace mine or what http://www.collection.archivist.info/searchv13.php?searchstr=cmm+level
02:25 AM Deejay: moin
03:24 AM rc-heli: Hallo, gibt es hier auch Leute aus der Gegend von Passau?
04:14 AM enleth_ is now known as enleth
04:21 AM Contract_Pilot: Ahhhh cannot sleep
05:30 AM jthornton: morning
05:43 AM XXCoder: hey jthornton saw your video
05:43 AM XXCoder: boy chicken trying to crow
05:43 AM jthornton: yea wish I could have caught the first one it was real bad lol
05:44 AM XXCoder: meh sounds are all equal to me ;)
05:45 AM XXCoder: anyway
05:46 AM XXCoder: theyre definitely growing up!
05:46 AM jthornton: yea they are 3 months old now
05:47 AM jthornton: RPi3 stopped working last night for some reason
05:47 AM XXCoder: I just read about Obama. interesting. he was called for jury duty while president. he went, and he was excused
05:48 AM XXCoder: and recently he was called again. he was excused again. I guess they didnt want service people bothering rest of jury
05:49 AM Contract_Pilot: Sup
05:49 AM XXCoder: not much just chilling a little before go to bed
05:51 AM jthornton: I had 4 in my lap yesterday and it was full for sure
05:51 AM XXCoder: jthornton: whats funny is that I was called to duty twice. one was right before I started finals in college
05:51 AM XXCoder: and second one was once again, right before finals AND graduation lol
05:53 AM XXCoder: if I was called again I will do my duty, but I sure was glad I dodged that.
05:54 AM XXCoder: was you called for jury?
05:54 AM jthornton: yea right before finals sucks
05:55 AM jthornton: once in Louisiana but wasn't picked and on call once here but not called
06:32 AM XXCoder: cool
06:32 AM XXCoder: https://www.kickstarter.com/projects/1352339404/wondercutter-ultrasonic-cutter-40000-vibrates-per?ref=category
06:32 AM XXCoder: interesting heh
06:39 AM SpeedEvil: miss0r: yay. At least not too late
06:40 AM SpeedEvil: I got called in Scotland, but was out due to health reasons
06:40 AM jthornton: you'll put your eye out with that lol
06:40 AM XXCoder: lol
06:41 AM XXCoder: speed hopefully not due to bone spurs ;)
06:41 AM jthornton: I had a bone spur on top of my big toe very painful
06:42 AM SpeedEvil: If only.
06:42 AM XXCoder: ow jt. hope I never get one, I have enough problems
06:44 AM jthornton: it was very painful for a few days after they removed it too
06:44 AM XXCoder: heard they grind it down?
06:47 AM archivist: angle grinder
06:47 AM XXCoder: lol
06:50 AM jthornton: they used a chisel to knock it off IIRC
06:51 AM XXCoder: savage
06:51 AM archivist: a bit rough!
06:51 AM XXCoder: Doctor McCoy wouldn't like that
07:02 AM jthornton: I think my USB webcam was messing with the RPi3 so I unplugged it
08:48 AM Guest70094 is now known as McBride36
09:50 AM Sabotend_ is now known as Sabotender
11:51 AM IchGucksLive: hi
11:51 AM Loetmichel: IchGucksLive: GUUUNNNNAAAAAMD!
11:53 AM IchGucksLive: Loetmichel: kann ich mit eienem opv ein sinus in ein rechteck wandeln
11:53 AM Loetmichel: ja
11:53 AM Loetmichel: und nein. ICH kann ;)
11:55 AM IchGucksLive: das hier hab ich vor http://mino-elektronik.de/mt12_iic/mt12_iic.htm
11:57 AM Loetmichel: ja uind?
11:57 AM Loetmichel: das ding kann doch sinus verarbeiten?
11:57 AM Loetmichel: warum rechteck draus machen?
11:58 AM IchGucksLive: also das müsste genen an einer heidnehain ls 803d denke ich
12:10 PM Deejay: i cant understand you ;)
12:47 PM DocHopper__ is now known as DocHopper
12:51 PM roycroft: so, the $2 chinese er collets vs. the $20 us er collets
12:51 PM roycroft: is there a significant difference?
12:51 PM roycroft: the chinese ones clame 0.01mm tir, which is fine for my application
12:52 PM roycroft: claim, rather
01:03 PM SpeedEvil: You're paying (in theory) for someone in the chain that cares about QC.
01:04 PM archivist: roycroft, how good is the holder first
01:04 PM archivist: not good putting costly collets in a chinese holder
01:07 PM roycroft: it's a chinese spindle
01:07 PM roycroft: and this is for a wood router
01:07 PM roycroft: i'm thinking the $2 collets will probably suffice
01:07 PM roycroft: i did order a spindle with german bearings
01:08 PM roycroft: cheap bearings seems to be the biggest problem folks talk about with those spindles
01:09 PM archivist: the taper is not spot on with some
01:09 PM roycroft: some of the spindles?
01:10 PM roycroft: the one i ordered ships from the us and has a 30-day return policy with free return shipping
01:10 PM roycroft: so i think i'm covered if something is amiss
01:11 PM roycroft: the seller is obviously chinese though - it's a drop shipment warehouse
01:11 PM archivist: I got the cheap collets and a parallel shaft holders and morse holders, then tried them in series with a bit of 10mm HSS ground bar
01:13 PM roycroft: i don't have the means to test the taper accurately
01:13 PM roycroft: i'll be getting four collets in total, from at least two different sources
01:14 PM roycroft: i can measure tir of the spindle taper, tir of router bits in the collets
01:14 PM roycroft: and i suppose i can blue the taper and install each collet and see how well they mate up
01:15 PM roycroft: and i suppose i should test the spindle for end play
01:16 PM archivist: but for wood, no need to worry too much
01:16 PM IchGucksLive: Gn8
01:17 PM roycroft: it's good to know
01:17 PM roycroft: but yes, not a concern unless the numbers are really bad
01:59 PM jym: does anyone happen to remember WHICH version of ubuntu had a "live USB" installer built into the distro (iso)?
02:00 PM _methods: don't most of them?
02:04 PM andypugh: Hardy certainy had
02:16 PM jym: andypugh: Not any more. Most are 1.5GB or larger ISO these days.
02:16 PM andypugh: Hardy would let you create a boot disc from the utilities menu. I thought that was the question.
02:17 PM gloops: you mean like run from the usb? or install from usb?
02:17 PM jym: Install TO a usb
02:21 PM gloops: can do that with mint
02:22 PM jym: Hmmm, ok
02:22 PM MarcelineVQ: can just use dd to install to usb
02:22 PM gloops: using windows?
02:22 PM jym: gloops: mac or linux
02:22 PM jym: MarcelineVQ: dd the iso?
02:22 PM MarcelineVQ: ye https://askubuntu.com/questions/372607/how-to-create-a-bootable-ubuntu-usb-flash-drive-from-terminal
02:22 PM _methods: of course
02:23 PM jym: _methods: not necessarily, ther'e sthe whole syslinux bs to contend with
02:24 PM _methods: wut?
02:24 PM gloops: https://www.pendrivelinux.com/liveusb-install-live-usb-creator/
02:24 PM jym: or tere was at one time
02:24 PM _methods: there is nothing to contend with
02:24 PM jym: there*
02:24 PM gloops: ubuntu or whatever
02:24 PM _methods: pretty much every distro you can install to usb
02:24 PM _methods: you can use any number of techniques
02:25 PM jym: _methods: dont make me hurt you more than I already want to ;)
02:25 PM _methods: unetbootin, dd, rufus
02:25 PM _methods: hahah
02:25 PM _methods: pick your poison man
02:25 PM jym: _methods: dd is fine, it's all the others that are kludgy
02:26 PM jym: _methods: Oh that's easy, bleach + ammonia cocktail for you! ;)
02:26 PM _methods: heheh
02:28 PM jym: https://wiki.ubuntu.com/LiveUsbPendrivePersistent
02:28 PM jym: looks like v9
02:28 PM CaptHindsight: looks like nobody has tried multitouch with Linuxcnc in years
02:29 PM gloops: well, this weekend i will be casting 2 aluminium plates 400x175mmx22mm down the garden
02:29 PM gloops: i guess about 7lbs of ally apiece
02:29 PM CaptHindsight: jym: in the olden days a thumbdrive Linux install might have only lasted days before the flash was trashed from writes
02:30 PM MarcelineVQ: gloops: sounds like fun, what do you use to flux alu?
02:30 PM MarcelineVQ: or does one?
02:30 PM gloops: Marcel nothing
02:30 PM jym: CaptHindsight: that's okey
02:30 PM CaptHindsight: with wear leveling and installs tweaked for thumbdives the problems went away
02:30 PM MarcelineVQ: the dross just comes up on its own? neato
02:31 PM gloops: chuck it in the pot, blast it with propane, scrape the rubbish out - pour
02:31 PM CaptHindsight: but the docs and howto's never really caught up
02:31 PM gloops: i have actually got some clean stuff already in crude ingots
02:32 PM MarcelineVQ: sounds like I'll need to try that myself sometime
02:32 PM CaptHindsight: _methods: how was Fabtech? Fabulous?
02:32 PM _methods: it was
02:32 PM _methods: lots of swag
02:32 PM _methods: and ocean gurlz
02:32 PM gloops: i cant face handing 80 notes over for two plates
02:33 PM _methods: the mitsubish laser was piercing 1" mild steel in 1 second
02:33 PM _methods: and cutting at about 30 inches per minute
02:33 PM CaptHindsight: _methods: what is the price tag?
02:33 PM MarcelineVQ: gloops: for sure
02:34 PM _methods: about $7-800,000 depending on options
02:34 PM _methods: up to a million
02:34 PM MarcelineVQ: gloops: especiallty if you end up with a fly cutter at some point, then you're laughing
02:34 PM CaptHindsight: _methods: leather seats?
02:34 PM _methods: in mean you can make it go as high in price as you want with automation options
02:34 PM CaptHindsight: yeah
02:34 PM _methods: but very base 6kw laser was $700k
02:35 PM MarcelineVQ: *flyuctter/facemill
02:35 PM _methods: 8kw was $850k
02:35 PM _methods: we're probably getting the 6kw
02:36 PM CaptHindsight: _methods: how busy do you keep it?
02:36 PM gloops: Marcel i have got some milling capabilities on lathe, but not big enough for this size
02:36 PM _methods: it just depends
02:36 PM _methods: sometimes we run it 24/7
02:36 PM gloops: i will use my diy surfacing maching
02:36 PM _methods: but others it will just sit there
02:37 PM _methods: but it's definitely justified just for that pierce and the operating costs are a fraction of a standard co2 laser
02:37 PM CaptHindsight: _methods: with 1" steel how clean is the cut?
02:37 PM _methods: it's beautiful
02:37 PM _methods: it pierces so fast and cuts so quick the metal doesn't have time to build up heat like co2 lasers
02:38 PM _methods: it takes us like 30sec now to pierce 1"
02:38 PM _methods: so just one part with like 10 pierces you could save 300sec per part
02:39 PM _methods: so a sheet with hundreds of that part
02:39 PM CaptHindsight: why I was wondering how busy it is kept
02:39 PM _methods: saves you LOTS of time
02:39 PM _methods: they use a fraction of the electricity of co2 laser too
02:39 PM CaptHindsight: _methods: know the wavelength? I can look it up
02:40 PM _methods: 1nm
02:40 PM _methods: our co2 laser is 10nm
02:41 PM jym: _methods: the mitsubishi... a YaG laser?
02:41 PM _methods: not sure
02:42 PM jym: a 50W Yag can cut/engrave titanium beautifully
02:42 PM jym: else you get a 2000W CO2 =)
02:42 PM _methods: https://www.mcmachinery.com/products-and-solutions/ex-f-series/
02:44 PM jym: 4KW.... so I'm guessing CO2
02:44 PM _methods: no laser
02:44 PM _methods: fiber
02:44 PM _methods: and 6kw
02:45 PM _methods: i guess they use a yb doped fiber for the resonator
02:45 PM jym: _methods: fiber just means to mirrors, still a laser in there =)
02:45 PM _methods: i don't know what the diode is though
02:45 PM jym: no mirrors*
02:46 PM _methods: umm yeah i get that
02:46 PM jym: just smoke ;)
02:48 PM _methods: http://www.ipgphotonics.com/en/products/lasers/high-power-cw-fiber-lasers
02:48 PM _methods: that's the resonator
02:48 PM _methods: yb laser
02:51 PM _methods: ipg actually had this laser at the show
02:51 PM _methods: http://www.ipgphotonics.com/en/lasercube/
02:51 PM _methods: $280,000
02:51 PM _methods: 4'x4' bed
02:51 PM jym: https://www.headland.com.au/myth-buster-fibre-vs-co2-lasers/
02:52 PM _methods: which is a pretty damn good deal for a 3kw laser
02:53 PM jym: If I was to get a metall cutting laser, I'd be looking at a YaG
02:54 PM CaptHindsight: http://aemstatic-ww2.azureedge.net/content/dam/lfw/print-articles/2012/04/1204LFW05f2.jpg multiple fiber lasers are used to produce the output
02:54 PM _methods: yeah
02:54 PM _methods: they can stack diodes
02:55 PM _methods: and make it as powerful as they want
02:55 PM _methods: the problem is the optics
02:55 PM _methods: they can only handle so much power
02:55 PM _methods: so basically no one can cut continuously right now with anything over 10kw
02:55 PM _methods: without smoking focus lenses
02:56 PM _methods: and i'm talking about very specific application here when i'm saying this
02:56 PM _methods: i.e. metal cutting
02:56 PM _methods: obviously for other applications higher wattages are used
02:59 PM CaptHindsight: I have a spare lab SLS printer coming up. CO2 with galvo. 40 tpi screw on the Z-axis
02:59 PM _methods: oh lawd there was a whole 3d printer section at the fabtech
03:00 PM _methods: it was hilarious
03:00 PM CaptHindsight: mostly glue guns?
03:00 PM _methods: everyone is just walking by them all laughing at their plastic trinkets
03:00 PM _methods: yeah
03:00 PM _methods: they put them right at the front too
03:01 PM CaptHindsight: still trying to eek out every penny from their marketing attempts
03:01 PM _methods: yeah it was pretty sad
03:01 PM _methods: they're all standing there all alone
03:01 PM _methods: everyone just walking right by
03:02 PM CaptHindsight: like the Beanie Baby traders :)
03:02 PM _methods: yeah it was pretty pathetic
03:02 PM _methods: i almost felt sorry for them
03:02 PM _methods: the laser tube cutters and the plasma cutters on robots were where it was all at
03:03 PM _methods: seems like everyone is putting a robot on a vertical axis with a plasma torch
03:04 PM CaptHindsight: I have one to light my cigars
03:04 PM _methods: https://www.youtube.com/watch?v=NKpOnolRIaA
03:04 PM CaptHindsight: the guy that sold makerbot for ~$400M knew how to do it
03:05 PM _methods: yeah lol i guess he got the last laugh
03:05 PM CaptHindsight: PeddiBot heh, not the first thing that came to mind :)
03:05 PM _methods: right
03:05 PM _methods: probably not a good name
03:05 PM CaptHindsight: Staubli arm
03:07 PM _methods: yeah pretty much everyone had some version of it
03:07 PM CaptHindsight: I have SCARA with ~1m radius I was going to mount a plasma to
03:07 PM MarcelineVQ: A bot with a work holding arm or two and a welding arm would be pretty cool
03:07 PM _methods: https://www.youtube.com/watch?v=UjkK_YxXSsg
03:07 PM _methods: taht thing there was pretty damn cool
03:08 PM _methods: the tube cuttters are awesome to watch
03:08 PM MarcelineVQ: yes
03:09 PM CaptHindsight: sometimes it just nice to spend a few days at shows like that just to be surrounded by people that can actually think and converse
03:09 PM _methods: https://www.youtube.com/watch?v=Kh20X9fWWFo
03:09 PM _methods: taht is an amada laser with tube cutter attachment
03:09 PM _methods: 3kw laser
03:09 PM _methods: you can use it like a regular sheet laser
03:09 PM CaptHindsight: yeah, square inside cuts :)
03:09 PM _methods: or move in the tube cutter palette
03:10 PM _methods: and cut tubing and angle or whatever
03:10 PM CaptHindsight: no tooling or for thick parts
03:10 PM _methods: which was pretty damn cool too
03:10 PM _methods: so you get a regular laser and tube cutter
03:10 PM _methods: but it was $900,000
03:13 PM CaptHindsight: i wonder what the patents look for things like that
03:13 PM CaptHindsight: not complicated but how do they protect their sales?
03:13 PM CaptHindsight: thats where the gamed patent duchery comes in
03:14 PM CaptHindsight: laser on multiaxis arm is obvious to many of us
03:14 PM _methods: i have no idea
03:15 PM _methods: i don't know how much they patent but most of it i'm sure is in the motion control areas
03:15 PM _methods: and other little things
03:16 PM _methods: like all the lasers were cutting pretty closely in feedrates but only mitsubishi was piercing thick plate that fast
03:16 PM CaptHindsight: LCNC can do much of it without any mods
03:16 PM _methods: and trumpf has some fancy nozzle that rides on the plate to save nitrogen
03:16 PM _methods: amada had that cool tube cutter attachment
03:16 PM _methods: mazak just sucked
03:16 PM CaptHindsight: huh
03:16 PM _methods: they didnt have shit and none of their lasers worked lol
03:16 PM _methods: they all kept breaking
03:17 PM CaptHindsight: Mazak has their big sales floor near me
03:17 PM _methods: you out by schaumburg?
03:17 PM _methods: mazak optonics or mazak machining?
03:18 PM CaptHindsight: http://www.heitmanarchitects.com/wp-content/uploads/2013/12/HAI-ARCH-MZKS-I07.jpg see through the windows from the tollway
03:18 PM _methods: yeah
03:18 PM _methods: trumpf did the same thing
03:18 PM CaptHindsight: the tollway is just to the right
03:18 PM _methods: in i90
03:18 PM _methods: they're all like that
03:19 PM _methods: mitsubishi, trumpf, mazak down 90
03:19 PM _methods: dmg/mori
03:19 PM _methods: so many demo rooms there
03:19 PM CaptHindsight: 20 minutes from me
03:20 PM CaptHindsight: was looking for a giant lathe a couple years ago, someone had one on the sales floor
03:20 PM CaptHindsight: 2m x 6m
03:20 PM _methods: poreba territory heheh
03:21 PM MarcelineVQ: 2m :O
03:21 PM CaptHindsight: CNC
03:21 PM CaptHindsight: think the casting is done in Poland
03:22 PM CaptHindsight: was actually going to be a 3D printer
03:23 PM CaptHindsight: 3d print urethane onto the outer surface of a giant roller
03:23 PM CaptHindsight: for paper mills
03:23 PM CaptHindsight: the mills are the size of small ships
03:24 PM CaptHindsight: _methods: what else was there?
03:25 PM _methods: oh man all kinds of stuff
03:25 PM _methods: i could have spent all 4 days there
03:25 PM _methods: but the damn boss wanted to come back
03:25 PM _methods: someone had a cool visual cmm
03:25 PM _methods: i'll see if i can find it
03:25 PM CaptHindsight: at least you made it for a day or two
03:26 PM CaptHindsight: did you stay downtown?
03:26 PM _methods: http://www.hexagonmi.com/about-us/news/media-releases/2017/march-2017/hexagon-manufacturing-intelligence-launches-new-camera-based-portable-cmm
03:26 PM _methods: yeah i stayed at mccormick place
03:26 PM _methods: made it real easy
03:26 PM CaptHindsight: nice
03:26 PM _methods: just walk downstairs and go to the show
03:27 PM CaptHindsight: I try to park in that hotel lot
03:27 PM _methods: but we'll probably get one of those camera based cmm's
03:28 PM _methods: they're coming to demo it some day
03:28 PM _methods: be great for taking on site to measure stuff
03:29 PM CaptHindsight: https://www.toolmex.com/MACHINES/4-Way-Bed-Lathes
03:29 PM _methods: http://www.metronor.com/industrial/metronor-one-system/
03:29 PM _methods: that's the cmm
03:30 PM _methods: yeah that's some monster lathes
03:31 PM CaptHindsight: http://www.romiusa.com/romi-c-series/
03:32 PM CaptHindsight: they were ~$700K
03:32 PM CaptHindsight: all the fun stuff starts at $500k
03:32 PM CaptHindsight: :)
03:33 PM XXCoder: interesting
03:33 PM XXCoder: I wonder how well it handles really shiny parts
03:33 PM CaptHindsight: _methods: was there a robot section? Big bots moving car bodies around and similar.
03:34 PM _methods: the whole show was a robot section
03:34 PM _methods: people were putting robots on everything
03:34 PM _methods: robot deburring
03:34 PM CaptHindsight: ok
03:34 PM _methods: robot part moving
03:34 PM _methods: robot plasma cutting
03:34 PM _methods: robot laser welding
03:34 PM CaptHindsight: sales?
03:34 PM CaptHindsight: I WISH
03:34 PM _methods: hahah
03:36 PM CaptHindsight: XXCoder: https://www.interempresas.net/Metall/Empreses-Productes/Videos-Romi-Maquinas-Espana-S-A-9191.html?TV=,10004135
03:36 PM _methods: shiny parts?
03:36 PM _methods: wtf are you talking about
03:37 PM XXCoder: _methods: that camera cmm
03:37 PM _methods: lol
03:37 PM _methods: the camera just tracks the wand
03:37 PM _methods: which has a probe attached to it
03:37 PM XXCoder: interesting
03:37 PM _methods: you press the probe tip to the part then hit the button and the leds kick on
03:37 PM XXCoder: i wonder what repeatability is
03:38 PM _methods: they told me +/- .001
03:38 PM _methods: which is perfect for my intended application
03:38 PM XXCoder: not bad for portablw
03:38 PM _methods: field measurements
03:38 PM _methods: and large parts and fixtures
03:39 PM CaptHindsight: we do similar with deposition nozzles, a camera guides it for precision
03:40 PM CaptHindsight: heh what if your parts are blocks of front surface mirrors?
03:40 PM CaptHindsight: what he was thinking
03:41 PM _methods: i don't know i'm guessing they have some sort of error correction for stuff like that
03:41 PM _methods: i'm sure the reflection distance between lights probably isn't right
03:42 PM CaptHindsight: comes with a bottle of talc
03:42 PM _methods: but i guess if it's a problem you drape something over the reflective stuff
03:42 PM XXCoder: arrange talc in neat 2 lines
03:43 PM XXCoder: leave blade you used to arrange em and straw nearby
03:43 PM CaptHindsight: _methods: did the welding suppliers have demo areas to try them?
03:44 PM _methods: oh yeah
03:44 PM _methods: they had fume extractors the follow your gun/torch
03:44 PM _methods: s/the/that
03:45 PM CaptHindsight: I need one of this this week
03:45 PM _methods: yeah pretty cool
03:45 PM CaptHindsight: this/those
03:45 PM CaptHindsight: it's been really cold here
03:45 PM CaptHindsight: went from 70's to 40's
03:46 PM CaptHindsight: planned some welding for 50-60 deg weather with the doors open
03:46 PM CaptHindsight: and it never came
03:47 PM CaptHindsight: 15F tonight :(
03:47 PM XXCoder: build your own heat exchanger using plastic politics signs
03:48 PM _methods: https://www.youtube.com/watch?v=zxCgNcUWFxo
03:48 PM _methods: there it is
03:48 PM CaptHindsight: nice
03:48 PM _methods: yeah
03:49 PM CaptHindsight: also works after visiting Taco Bell
03:49 PM _methods: hahah
03:50 PM CaptHindsight: I should cobble one together
03:52 PM XXCoder: CaptHindsight: https://1.bp.blogspot.com/-_PctYDyx_FA/UKw8jdeGPDI/AAAAAAAAAj8/S3CIKwrtRdM/s1600/erv-page-top.jpg
03:52 PM CaptHindsight: I saw one at Walmart recently when they were doing some work on the trusses late one night
03:53 PM XXCoder: http://blog.sandium.com/2012/11/heat-recovery-hrv-energy-recovery.html though I bet you that you could chain 2 together in order to recover even more heat.
03:53 PM CaptHindsight: seems the cookie cutter Walmart store design has a few flaws
03:54 PM CaptHindsight: XXCoder: if I had a welding shop it would make sense
03:54 PM XXCoder: its not just for welding but yeah
03:54 PM CaptHindsight: for me it's a few hours here and there
03:54 PM CaptHindsight: then they might sit for months
03:55 PM XXCoder: other variant https://hackaday.com/2013/12/08/solder-fume-extractor-with-heat-recovery/
03:55 PM XXCoder: more specifically for welding
03:55 PM CaptHindsight: already have a ducted exhaust fan, just need to add some flex vent
03:57 PM XXCoder: yeah this could help preserve heat
03:57 PM XXCoder: because dang 15f is cold
03:59 PM CaptHindsight: _methods: I was confusing Fabtech with manufacturing week
03:59 PM _methods: oh
03:59 PM CaptHindsight: they had the 3D printer hype on full speed
04:00 PM CaptHindsight: they printed the plastic car body the whole week
04:00 PM XXCoder: that same exchanger system could keep abs fumes out of of printer enclosure and room too
04:00 PM XXCoder: while preserving warmer abs printing enclosure without deforming abs
04:01 PM CaptHindsight: XXCoder: we use a nitrogen flood in the SLS printers
04:01 PM XXCoder: interesting
04:01 PM XXCoder: I do want sls printer lol
04:01 PM CaptHindsight: fumes get filtered and then outside
04:02 PM XXCoder: finally found one I was talking about https://handmadematt.blogspot.com/2015/01/heat-recovery-ventilation-heat.html
04:02 PM XXCoder: politics signs should work lol
04:02 PM XXCoder: nice
04:03 PM XXCoder: anyway this one is probably easiest and since its huge it should extract closer to 50% max theorical effecacy for single exchanger
04:03 PM CaptHindsight: _methods: did you make it around town at all?
04:03 PM _methods: yeah a little
04:03 PM _methods: ate dinner one night at prime and provisions
04:04 PM _methods: primeandprovisions.com
04:04 PM _methods: http://primeandprovisions.com
04:04 PM CaptHindsight: donwtown
04:04 PM _methods: had me a $65 steak lol
04:04 PM _methods: yeah
04:05 PM _methods: well time to head home
04:06 PM CaptHindsight: heh. almost dark here to
04:29 PM XXCoder: lol it gets dark in less than hour after I start working now
04:29 PM XXCoder: rain plus earlier sunset time
05:02 PM Vitran: I have a next-level crazy idea
05:02 PM Vitran: I have been getting my lathe powered up
05:02 PM Vitran: but it turns out that the old PLC turned the encoder signal and produced a tachometer signal that went to the servo drives
05:03 PM Vitran: So when I turn on my servo drives now, they move as fast as possible
05:03 PM Vitran: Looking for an encoder-to-tach converter is next to impossible so I was searching for new drives for my lathe
05:04 PM Vitran: but then a friend pokes up and says that he can convert the encoder signal to a tach signal with an arduino.
05:04 PM Vitran: Not sure if this is crazy stupid or not
05:04 PM gregcnc_: some drives take encoder velocity feedback
05:04 PM Vitran: This drive was made by Siemens in the 80s
05:06 PM JT-Shop: _methods: damn nice steak I'd bet
05:07 PM _methods: it was ok
05:07 PM _methods: halls chophouse here is WAY better
05:07 PM JT-Shop: I get a 1 1/4" porterhouse from the local butcher and they season it with magic dust
05:07 PM _methods: https://hallschophouse.com/menu/
05:09 PM _methods: probably best steak i've ever had in my llife there
05:09 PM JT-Shop: they look good
05:09 PM _methods: oh man it's incredible
05:09 PM * JT-Shop goes to sit with the chickens for a bit
05:10 PM Tom_L: JT-Shop you move from the beer cave to the chicken coup?
05:15 PM pcw_mesa: Vitran: people have done this with our hardware, just needs a spare analog out/channel
05:15 PM Vitran: pcw, I don't think I have a spare
05:16 PM Vitran: I have 3 axis + spindle on a 7i77
05:16 PM Vitran: so only 2 left over
05:17 PM Vitran: But, that is very tempting. Is there some code I can see on that?
05:17 PM pcw_mesa: you can test it though (basically you wire the HAL encoder velocity pin to a analog out)
05:18 PM Deejay: gn8
05:21 PM Vitran: I am still figuring out what the tachometer signal is. I had thought a tachometer was a pulse, not necessarily an analog voltage. However I do see notes about +- and power signals for the tach
05:23 PM pcw_mesa: tachometers of 80s servos are typically DC generators with just 2 wires ( and maybe a shield )
05:25 PM Vitran: Ah! that makes some sense
05:25 PM Vitran: What voltage range would they be in?
05:26 PM pcw_mesa: they vary maybe a couple to 10V per 1000 RPM
05:28 PM pcw_mesa: but a tachometer simulator will almost always be +-10V full scale since the output is from an OpAmp
05:28 PM Vitran: kk
05:28 PM andypugh: So, I have a nice machined oak organiser for my set of ER11, ER16, ER25 and ER32 collets. Guess what size of high speed spindle I just took delivery of?
05:28 PM Vitran: ER40?
05:28 PM andypugh: No, not ER8 either.
05:29 PM Tom_L: R8!
05:29 PM andypugh: No.
05:29 PM gregcnc_: iso 15
05:29 PM andypugh: Now you are just being deliberately obtuse.
05:30 PM rob_h: hsk
05:30 PM Tom_L: pretty sure it's not 50 taper
05:30 PM Contract_Pilot: Sup...
05:31 PM andypugh: It’s Chinese high-speed spindle with a built in ER nose.
05:31 PM Contract_Pilot: Some intrest in my mesa 7I76 & 7I77
05:31 PM Contract_Pilot: Andy
05:32 PM Contract_Pilot: Need to move these mesa cards so i can get another 5I25 or 6I25
05:33 PM andypugh: I have no interest in them, I have more Mesa cards than is healthy.
05:33 PM Tom_L: meh
05:33 PM Tom_L: there is no sush thing
05:33 PM Tom_L: such*
05:34 PM * Tom_L counts andypugh's lathes
05:35 PM andypugh: eBay seems to be almost out of stock of ER20 collet sets too.
05:36 PM Tom_L: what's the max capacity on an ER20? 8mm?
05:36 PM Contract_Pilot: Yea, figured somone could use these more them me...
05:36 PM MarcelineVQ: Tom_L: around 13mm
05:36 PM Contract_Pilot: how are the 1.00 ebay collets
05:37 PM Tom_L: ahh, that's not so bad
05:37 PM Contract_Pilot: Was thinking of ordering some
05:38 PM rob_h: i found some ebay cheap collects to be abit soft and deform easy
05:38 PM andypugh: Every collet I have ever bought has fulfilled my requirements. Maybe my requirements are not so exacting, though.
05:38 PM Vitran: I have a 7i64 with no output pins, so it is a set of 24 input pins ready and waiting!
05:40 PM Contract_Pilot: Yea, i need to replinish pay pal funds as its the only debit card i use so i can order a 5i25
05:40 PM andypugh: Vitran: Why doe it have no output pins?
05:41 PM Contract_Pilot: Listed a whole bunch of stuff on Fee-bay
05:44 PM Contract_Pilot: My Trading Stock.... https://www.ebay.com/sch/contract_pilot/m.html?
05:48 PM andypugh: Your centre seems expensive. I would buy this one instead, it’s shinier. https://www.ebay.com/itm/NICE-ROYAL-P-N-10701-NO-2-MORSE-TAPER-PIPE-BULL-HEAD-LIVE-CENTER-2MT/382249646644?epid=710193744&hash=item58ffdaba34:g:c8cAAOSwU4JZjaq0
05:49 PM Contract_Pilot: Yea, Really dont want to sell it.... but its up there...
05:50 PM Contract_Pilot: Just all the stuff i am tired of moving from cabinet to cabinet...
05:52 PM Contract_Pilot: Never did finish converting that lathe hahaha got the tormach 1100 and been busy....
05:52 PM Contract_Pilot: Still ahve my to do list on things to make to finish it.
05:53 PM Contract_Pilot: in 2 months had 3 surgeries 1 more on the 20th and 1 again prob a few weeks after that.
05:54 PM Contract_Pilot: the one schedueld for december they gonna cut my bacon and stuff my guts back in hahaha... after years getting this hernia fixed.
05:58 PM Contract_Pilot: Wonder what Distro & Version Path Pilot 2 is using.
06:00 PM tiwake_ is now known as tiwake
06:00 PM MarcelineVQ: Contract_Pilot: they should give you a card, 5th one's free :(
06:02 PM Contract_Pilot: Yea, but i getting all fixed up feel much more alive more active etc.
06:07 PM Contract_Pilot: I need prob 15 more TTS ER20's and 10 TTS ER16's
06:09 PM Contract_Pilot: Got paid 20.00 to install a new Heat Pump Hybrid Water Heater.
06:09 PM Contract_Pilot: http://www.stevenrhine.com/?p=2311
06:11 PM Contract_Pilot: I may get the last outlet wired this weekend, then its on to airlines.
06:11 PM Tom_L: corporate?
06:15 PM Contract_Pilot: Nope not that type of airlines
06:15 PM Contract_Pilot: Compressed Air
06:46 PM Contract_Pilot: ok, been up all night and most the day going to try and get some sleep.
07:16 PM CaptHindsight: how many kernels is your system running when you are just trying to run RTAI?
07:16 PM CaptHindsight: https://youtu.be/iffTJ1vPCSo?t=1m36s
07:54 PM andypugh: CaptHindsight: He claims you can’t turn off SMI. But we do it on LinuxCNC machines routinely.
08:00 PM CaptHindsight: andypugh: I'd have to look over the SMI "killer" and see what it really does with EFI
08:01 PM CaptHindsight: it might disable what used to be SMI in BIOS in the pre-EFI days
08:01 PM CaptHindsight: ME operates completely out of band, Linux does not know it's there and can't touch it
08:15 PM CaptHindsight: http://wiki.linuxcnc.org/cgi-bin/wiki.pl?FixingSMIIssues is the SMI from the Linux kernel
08:15 PM skunkworks: I am surprised it works at all...
08:18 PM CaptHindsight: https://en.wikipedia.org/wiki/System_Management_Mode
08:19 PM skunkworks: (and honestly as well as it does)
08:20 PM CaptHindsight: EFI creates an 8MB block of memory that it works out of protected and out of reach of the OS
08:28 PM CaptHindsight: skunkworks: when we used to build BIOSes with the vendor toolkits much prayer was involved
08:29 PM skunkworks: I bet.. Like rooting and rom-ing a phone.
08:29 PM CaptHindsight: it was mostly 16bit assembly patches
08:29 PM skunkworks: it
08:30 PM CaptHindsight: the BIOS screen with all those choices for settings was also a mess
08:30 PM CaptHindsight: you'd check things to be ON or OFF for the user menu and hope it actually did something
08:32 PM CaptHindsight: thats why some boards have BIOS setups that don't let you kill power management
08:32 PM CaptHindsight: the developer didn't check the ON box for that setting
08:49 PM Crom: Freaking A/C Relay on Honda's
08:49 PM Crom: stuck on, killed the battery...
09:44 PM Crom: Chopper looks like it
09:44 PM Crom: which clear path did you get and for how much?
09:46 PM chopper79: Crom: CPM-SDSK-2331S-RLN about $200 something.
09:46 PM Crom: I'm using JMC-motor.com iHSS56-36-20's (36v NEMA 23 2Nm)and a iHSS60-36-30 (36v NEMA24 3Nm) both around $124 each
09:46 PM chopper79: First time using these things...
09:46 PM Crom: I'm loving mine
09:47 PM Crom: I can go up to 50vdc for supply, I think clearpath's are 75vdc only...
09:48 PM Crom: both are good to around 1800rpm
09:48 PM chopper79: You can supply clearpath with less voltage. 75 is the peak inout DC voltage.
09:48 PM chopper79: The work they can do will drop with the voltage also
09:49 PM chopper79: I will look inot the JMC stuff. Thanks
09:49 PM Crom: I'm running mine at around 27vdc right now. Was getting a 48v 10a supply, I screwed up somewhere and it didn't get ordered. next month...
09:51 PM Crom: chopper: info@jmc-motion.com Talk to Michael. If you order directly from them they'll send you a tuner for free, though out of germany someone, made a tuner that runs on the PC
09:54 PM Crom: Though I haven't changed any settings on mine.
10:03 PM CaptHindsight: https://www.teknic.com/model-info/CPM-SDSK-2331S-RLN/
10:05 PM Tom_itx: what are these hybrid steppers that act like servos?
10:13 PM CaptHindsight: Tom_itx: yes
10:14 PM CaptHindsight: top speeds for the SDSK with Step and Dir is ~2500 rpm
10:15 PM CaptHindsight: stepper torque with servo behavior for lower speeds
10:16 PM CaptHindsight: oops no, ll of Teknic’s motors are closed-loop brushless servo motors
10:17 PM ziper: any idea what may have caused a poppet valve to fail at the shoulder?
10:17 PM CaptHindsight: https://www.teknic.com/faq/
10:17 PM ziper: fatigue?
10:18 PM CaptHindsight: https://en.wikipedia.org/wiki/Poppet_valve this type?
10:19 PM ziper: yeah
10:19 PM Tom_itx: heat
10:19 PM Tom_itx: and fatigue
10:20 PM Tom_itx: vw engines were known for popping the top of the valve
10:20 PM ziper: seems like usually they go bad around the seat or something, not the head coming clean off
10:20 PM Tom_itx: it happens
10:20 PM ziper: i wonder if there was a defect or something
10:20 PM Tom_itx: exaust valves
10:20 PM Tom_itx: intake seldom fail
10:20 PM Tom_itx: lean running
10:21 PM Tom_itx: makes them run hot
10:21 PM ziper: oh, diesel btw
10:21 PM Tom_itx: overrevving could cause it to hit the piston too
10:23 PM Crom: Tom_itx, closed loop steppers?
10:24 PM Tom_itx: https://www.amazon.com/stepper-Controller-Engraving-Milling-Machine/dp/B07411XP67/ref=pd_lpo_sbs_60_t_0/135-1326281-0053930?_encoding=UTF8&psc=1&refRID=HXF9M4WGEV997HCVBH9Q
10:24 PM Tom_itx: for example
10:24 PM hazzy: Tom_itx: I have those on my mill, love them
10:24 PM Crom: jmc-motor.com are the ones I use. email jmcxx@jmc-motion.com talk to michael. $124ish for NEMA 23 2Nm or 3Nm NEMA 24 closed loop steppers
10:25 PM ziper: oh wow, I didnt realize the valve heads were welded to the stems
10:26 PM Crom: iHHS57-36-20 http://www.jmc-motor.com/products.php?cid=248&id=118
10:26 PM ziper: at least sometimes
10:26 PM Tom_itx: ziper they're not
10:26 PM Crom: hazzy these are the ones I run
10:26 PM Crom: BOB, PS, Steppers done
10:27 PM Crom: driver/encoder all on the drive
10:27 PM hazzy: The integrated drive is nice
10:27 PM Crom: clearpath's are $200 and up.
10:27 PM Tom_itx: i take that back. maybe some are
10:27 PM hazzy: I got mine direct from SuTai in china, they were very cheap and they had good service
10:28 PM Crom: first ones I got from Aliexpress, now I go direct to JMC-motor.com (actually jmcxx@jmc-motion.com) Michael
10:29 PM Crom: off to home
10:29 PM chopper79: hazzy: are you kcj on the forum?
10:29 PM hazzy: yes!
10:30 PM chopper79: nice work on your gui
10:30 PM hazzy: Thank you
10:31 PM Tom_itx: meh, just average.... you can do better :D
10:31 PM Tom_itx: jk
10:32 PM ziper: im just going to write it off as a defect and rebuild everything
10:32 PM Tom_itx: hazzy i've been watching it from time to time... looks good
10:34 PM hazzy: Thanks Tom! I hope others will be able/want to use it :)
10:11 PM chopper79: Well ... I am off to catch some sleep. Everyone have a good one!!
11:03 PM CaptHindsight: https://youtu.be/6E293CtK8ig?t=23s friction welding valve stems
11:03 PM CaptHindsight: Andy was talking about this a few weeks ago...
11:03 PM CaptHindsight: they often use different alloys for stem and head
11:08 PM MarcelineVQ: odd chip control but friction welding is really cool