#linuxcnc Logs

Dec 06 2023

01:35 AM Deejay: moin
03:57 AM JT-Cave: morning
04:16 AM Tom_L: morning
04:19 AM Tom_L: haven't had a joint following error since i adjusted the accel limits
04:21 AM Tom_L: 34°F High 57°F
05:01 AM JT-Cave: forecast was 30°F but it's 40°F High: 47°F
05:10 AM JT-Cave: got the qplaintextedit to work :)
06:05 AM JT-Cave: gotta look a a job at Empire this morning to build a material handling system
06:15 AM Tom_L: cool
06:57 AM JT-Cave: rooster just crowed
07:37 AM JT-Cave: time to start my chicken day and hopes stackoverload can figure out why I can catch a left mouse button click in a qplaintextedit
08:19 AM JT-Cave: https://stackoverflow.com/questions/77613516/pyqt6-qplaintextedit-mouse-click-event
08:23 AM CloudEvil: Rogue chickens
09:13 AM JT-Shop: pcw--home, what's the next boards to be in stock?
09:16 AM pcw--home: We will have a last run on 7I77s,7I84s,7C80s,7C81s, and 6I25s. Still working on firmware for 7I84U and 7I76EU
09:17 AM JT-Shop: thanks
09:18 AM JT-Shop: what's the difference between the 7i84s and 7i84U?
09:24 AM pcw--home: 7I84U is the version with sourcing/sinking/PushPull outputs
09:31 AM JT-Shop: thanks
10:09 AM solarwind: https://www.youtube.com/watch?v=4ERJfoH2fgI lol 10% of people think the earth is flat? really?
10:10 AM bjorkintosh: solarwind you're saying this with Christmas right around the corner.
10:11 AM bjorkintosh: a good number of people think really fictional things exist :-)
10:11 AM solarwind: yeah that is very true
10:16 AM solarwind: """I appreciate how both sides approached this with respect to the other side's perspective and were willing to have open minds about each other's arguments."""
10:16 AM solarwind: Lol stupid people don't deserve respect
10:17 AM solarwind: I am so sick of this whole social bullshit where you get chastised for not respecting dumbasses
10:17 AM solarwind: Really? I'm supposed to respect and humour fuckwits who think an imaginary man lives in the sky?
10:18 AM solarwind: It's pathetic
10:19 AM bjorkintosh: solarwind, the politeness is mostly to hasten the process of getting on with one's life.
10:21 AM bjorkintosh: https://www.newyorker.com/magazine/2017/02/27/why-facts-dont-change-our-minds
10:21 AM bjorkintosh: and especially now that LLMs can deep fake any sound or image or text...
10:21 AM bjorkintosh: I don't even bother.
10:22 AM bjorkintosh: "you think the earth is flat and supported by elephants riding on the back of a turtle? Wonderful! have a turtle day"
10:22 AM bjorkintosh: Done.
10:24 AM bjorkintosh: as long as the chattering masses are not responsible for legislature which affects me, or do not require me to believe what they do to earn a pay check, I'm good.
10:27 AM solarwind: bjorkintosh sadly in the USA, that's exactly what they're responsible for
10:44 AM roycroft: anyway, happy st nicholas day!
10:50 AM bjorkintosh: haha
11:15 AM solarwind: CaptHindsight I figured out what the mystery metal is: case hardened 1045
11:16 AM solarwind: also did you guys know plain copper is by far the strongest metal? But only at the nanofibre scale
11:17 AM solarwind: Can't find the papers at the moment, but tensile strength is ~1GPa
11:18 AM CloudEvil: I mean, steel >1GPa exists
11:18 AM solarwind: I should say pure metal
11:18 AM solarwind: with very high ductility
11:20 AM CloudEvil: https://arxiv.org/ftp/arxiv/papers/2110/2110.00103.pdf
11:21 AM solarwind: Damn, it feels like the methamphetamines aren't taking today. Feel way more ADD than usual
11:29 AM CloudEvil: https://arxiv.org/ftp/arxiv/papers/1707/1707.01920.pdf Steels with aluminum!
12:31 PM solarwind: Accidentally overloaded a 5kVA transformer. I guess that means now I have a nice enclosure and some copper I can melt into bar stock
12:32 PM solarwind: Should be able to rewind it at some point
12:33 PM solarwind: Would be cool to have an on demand alloy smelting machine, like one of those fancy coffee makers. Give it various stock of copper, zinc, aluminum, iron, carbon, silicon, etc. and tell it what alloy you want and how much and it'll serve it up for you
12:34 PM solarwind: Nice and hot in a graphite crucible or whatever. Induction heating could probably be sufficient to induce stirring on its own
12:38 PM solarwind: Copper price per kg is cheaper at home depot (in the form of wiring) than an overpriced supplier like metalsupermarkets
12:51 PM CloudEvil: easy to add, rather harder to subtract.
12:54 PM roycroft: the cheapest copper can be found in underground utility vaults
12:54 PM roycroft: it requires a fair amount of processing though - you have to strip all the insulation off of it
01:02 PM CloudEvil: Fortunately, there is free power to operate cable strippers.
01:02 PM roycroft: except that free power used to run through the copper that is being stripped
01:02 PM bjorkintosh: what CloudEvil heat it up?
01:02 PM CloudEvil: Engineering details.
01:02 PM roycroft: but you died when you attempted to harvest the copper, so it doesn't really matter in the end
02:00 PM roycroft: tomorrow will be a day of celebration, although also a day for somber reflection
02:00 PM bjorkintosh: your birth anniversary, roycroft?
02:00 PM roycroft: the celebration will be because tomorrow is the last day of the medicare open enrollment period, and the multiple calls per day from insurance companies will finally stop
02:01 PM bjorkintosh: how nice of you to consider the long suffering souls at the end of the phone!
02:02 PM roycroft: fewer colorful metaphors will be emitted by my lips after tomorrow
03:16 PM JT-Shop: solarwind, it's called a replicator and all star ships have them for earl gray tea
03:23 PM roycroft: you mean earl grey, hot
03:23 PM JT-Shop: quite possibly
03:25 PM roycroft: patrick stewart actually wanted to drink lapsang souchong as captain picard, but the producers thought it was too obscure a variety and made him drink earl grey instea
03:25 PM roycroft: d
03:25 PM roycroft: pity, becaus lapsang souchong is such a superior tea
03:26 PM roycroft: the tea leaves are smoked over a pine fire
03:35 PM bjorkintosh: but it's obscure.
03:35 PM bjorkintosh: 'member?
03:52 PM solarwind: Nice, Lee Valley tools and their $20 same day delivery service, I love it
03:53 PM solarwind: Placed an order, got it 5 hours later. Would have taken me minimum 2h to drive there, pick up, drive back and a lot of wasted time and energy and wear on my clutch in traffic
03:53 PM solarwind: Got an 8" 600 grit CBN grinding wheel for the bench grinder. Time to put a nice polish on these HSS tools
03:54 PM solarwind: I wonder if I can grind tungsten carbide on this or if it'll damage it too much
03:55 PM solarwind: I think it's time to buy a proper cutter grinder
04:26 PM roycroft: orders from lee valley take a week to get here, but i don't pay shipping
04:27 PM roycroft: and i've never needed anything from them so desperately that i would pay for expedited shipping
04:50 PM Guest4445: Is there rtai with both 64/32 bit support?
04:53 PM Tom_L: https://github.com/NTULINUX/RTAI/blob/master/README.INSTALL
04:53 PM Tom_L: Guest4445, if there is, he would likely be the one
04:54 PM Tom_L: he also may have a newer one
04:54 PM Guest4445: Can he make a binary?
04:54 PM Guest4445: Deb
04:54 PM Tom_L: you could ask him when he's here
04:54 PM Tom_L: memleak
04:54 PM Guest4445: Ok thanks
04:54 PM Tom_L: he did make a gentoo install
04:55 PM JT-Shop: Tom_L, I did figure out how to capture the left mouse button in the QPlainTextEdit
04:55 PM Tom_L: i noticed something about that
04:55 PM Guest4445: How make aprogram use rtai?
04:55 PM Tom_L: build the kernel and install it
04:55 PM JT-Shop: so now I need to make it highlight the line for run from line
04:56 PM * Tom_L gives JT-Shop a bush knife for cutting a new path nobody's been down
04:56 PM * JT-Shop goes down to tuck the hens in and read them a bedtime story
04:57 PM Tom_L: i notice sometimes even axis doesn't follow the current line
04:57 PM Tom_L: it usually does
04:57 PM bjorkintosh: JT-Shop, tell them about the legend of Foghorn Leghorn!
04:57 PM Tom_L: chicken little
04:57 PM JT-Shop: I think that's because it reads ahead some lines
04:57 PM JT-Shop: yup
04:57 PM bjorkintosh: they've heard chicken little already.
04:57 PM Tom_L: but it's one of their favorites!
04:58 PM bjorkintosh: naturally.
04:58 PM bjorkintosh: my annotated favorite is Little Red hen.
04:58 PM bjorkintosh: it ends with a Randian/libertarian twist I've since grown out of, thank goodness.
04:58 PM bjorkintosh: I should take out the annotation.
04:59 PM Tom_L: Guest4445, there hasn't really been official RTAI support since wheezy
04:59 PM Guest4445: I use wheezy
04:59 PM Tom_L: but i think memleak has been trying to get it back in the master repo
05:00 PM Tom_L: so do i
05:00 PM Tom_L: and it works fine so why change
05:00 PM Tom_L: :)
05:00 PM Guest4445: But i dont know how to make programs use rtai
05:00 PM Tom_L: iirc wheezy used it by default
05:02 PM Tom_L: https://www.linuxcnc.org/dists/bookworm/base/binary-amd64/
05:02 PM Tom_L: see what you find there
05:02 PM Tom_L: appears to be one for bookworm (12)
05:03 PM Tom_L: 64 bit
05:04 PM Tom_L: linux-image-5.4.258-rtai-amd64_5.4.258-rtai-amd64-2_amd64.deb
05:04 PM Guest4445: But is it with 32bit support?
05:04 PM Tom_L: i doubt it
05:05 PM Guest4445: I need withthat support
05:05 PM Tom_L: maybe someone else could shed more light on the topic...
05:06 PM Guest4445: Do you have email of that guy?
05:06 PM Tom_L: i dunno if bookworm 64bit will run 32bit apps or not
05:06 PM Tom_L: nope
05:06 PM Tom_L: it may be in the repo
05:07 PM Tom_L: he shows up here now and then
05:07 PM JT-Shop: if you need 32bit use a much older OS
05:07 PM JT-Shop: I still run Ubuntu 10.04
05:07 PM Guest4445: I think it won't run, i already have 64bit kernel rtai it fails to run 32bit
05:08 PM JT-Shop: use a 32 bit kernel
05:08 PM Guest4445: He compiled without 32bit support
05:10 PM CaptHindsight: memleak is unavailable for about another week
05:11 PM Guest4445: Too long to wait, may be i can recompile already installed kernel with 32bit support?
05:12 PM CaptHindsight: not sure what the issues might be, you can try
05:12 PM Tom_L: CaptHindsight, you holding him hostage?
05:20 PM CaptHindsight: Xenomai has dropped 32-bit IPIPE support since kernel 4.14.71. The earliest kernel series supported in this tree is 4.19.
05:20 PM CaptHindsight: IA32 emulation and X32 ABI have been disabled in Kconfig due to various build errors. 32-bit binaries will not work.
05:21 PM CaptHindsight: right on his front page https://github.com/NTULINUX/RTAI
05:22 PM CaptHindsight: so the Guest that already left missed this info
05:38 PM JT-Shop: I could tell that guest was an impatient person
05:39 PM Tom_L: he'll make the loop and be back
05:40 PM CaptHindsight: frantic
05:40 PM Tom_L: desparate?
05:41 PM CaptHindsight: stuck with old hardware maybe
05:42 PM JT-Shop: or software
05:42 PM Tom_L: if i ever do upgrade i'll need new hardware as well
05:43 PM CaptHindsight: I can't even give away early 64b hardware
05:43 PM Tom_L: been looking for a good 1151 socket mini itx
05:43 PM Tom_L: since i have a couple spare cpus
05:43 PM JT-Shop: https://youtu.be/6onv00Arz34?t=1487
05:44 PM JT-Shop: interesting coffee maker
05:44 PM Tom_L: just like a still
05:45 PM Tom_L: isn't it all steam?
05:45 PM JT-Shop: it's a percolator
05:45 PM Tom_L: oh
05:45 PM JT-Shop: I think
05:45 PM Tom_L: i missed that part
05:46 PM Tom_L: no center tube anyway
05:46 PM JT-Shop: no but cool
05:46 PM Tom_L: yep
05:47 PM JT-Shop: https://www.youtube.com/watch?v=m3jg0RDnLv0
05:47 PM JT-Shop: make one
05:48 PM Tom_L: that shows the tube
05:48 PM Tom_L: i think
05:49 PM JT-Shop: time for some dogs and triple pepper colby jack cheese
05:49 PM Tom_L: i haven't seen a percolator in quite a while
05:49 PM flyback: CaptHindsight, what do you need 32 bit support for
05:50 PM Tom_L: he doesn't
05:50 PM flyback: ok
05:51 PM Tom_L: somebody that left already
05:51 PM flyback: Tom_L, have you seen the russian lathe accident video
05:51 PM Tom_L: don't repost it mkay?
05:51 PM flyback: sure
05:53 PM lcnc-relay: <roguish> no one needs 32 bit............dump it.
05:54 PM Tom_L: i need both
05:54 PM * flyback ponders testing his new coax couplers and terminators he got for wiring ups his house for tv antenna
05:54 PM flyback: I was going to suggest 86box if you need legacy sound and video emulation also for some reason in your software
05:54 PM flyback: it's pure sw emulation though and slow
05:55 PM lcnc-relay: <roguish> let the ancient stuff go..... like to 8086
05:55 PM XXCoder: that always depends on person budget etc
05:55 PM flyback: not always an option
05:55 PM Tom_L: i still have a working 386
05:56 PM lcnc-relay: <roguish> and how's that '5 Edsel doing
05:57 PM Tom_L: wonderful
05:57 PM Tom_L: i have some old legacy software i need to keep using
05:57 PM Tom_L: and my cad cam is 32bit
05:57 PM CaptHindsight: flyback: I don't, please reread the backlog
05:57 PM Tom_L: but that's on another box
05:57 PM flyback: yeah I did
05:58 PM CaptHindsight: flyback: and why are you asking me then?
05:58 PM Tom_L: cause he's flyback
05:58 PM flyback: no I mean I reread it after I said it
05:58 PM flyback: BMCC
05:58 PM * flyback hurls rue_MOHR at Tom_L
05:58 PM Tom_L: you still up north?
05:59 PM CaptHindsight: :)
05:59 PM flyback: in beaver falls pennsylvania
05:59 PM Tom_L: that was a shitty knurl he put on that brass
05:59 PM flyback: I bought a house last year
05:59 PM flyback: then I lost my job this aug after 16.5 yrs
05:59 PM flyback: oh well
06:00 PM Tom_L: but you're still up to no good :)
06:00 PM flyback: still biting canadians, yes
06:00 PM CaptHindsight: there are Canadians in here
06:00 PM flyback: orly?
06:00 PM * flyback sharpens teeth
06:01 PM CaptHindsight: at least someone has issues with our neighbors to the north vs the same old southern border talk
06:02 PM flyback: yeah right now I am working on antennas in my attic and backfeeding the old household cable lines to all the tv's
06:02 PM flyback: my terminators and couplers came today :)
06:04 PM flyback: surprising decent free channels
06:07 PM roycroft: i've only had ota television for years
06:07 PM roycroft: i don't miss all the cable/satellite channels at all
06:07 PM flyback: I am not paying $250 month for comcast
06:08 PM XXCoder: I just dont watch tv
06:17 PM lcnc-relay: <big_kevin420> tv is the best
06:18 PM lcnc-relay: <big_kevin420> opnly watch tv
06:18 PM lcnc-relay: <big_kevin420> worth every penny
06:20 PM XXCoder: well I spend zero penny, so not surpising that zero hour a day is worth all pennies I spent for watching tv.
06:22 PM lcnc-relay: <big_kevin420> i just
06:22 PM lcnc-relay: <big_kevin420> yern for a simplier time
06:40 PM Tom_L: do you miss TV guide?
07:03 PM flyback: I got both antennas combined into a splitter
07:03 PM flyback: so far no neagtives
07:03 PM flyback: and 2 stations are more stable now
07:03 PM flyback: heh I remmeber tv guide
07:03 PM flyback: I also remember when the tv guide channels were first coming out
07:07 PM solarwind: If I want to weld two short shafts together end to end, what's the easiest way? I don't mind brazing either. But I want 100% coverage
07:07 PM solarwind: That is, not just a bead around the outside.
07:07 PM solarwind: And I don't want to grind both to a taper and "build up" a weld from the inside out
07:08 PM solarwind: Friction weld on the lathe may be a possibility
07:08 PM solarwind: Or just make a slurry of bronze brazing alloy and flux and sandwich it between them and heat?
07:10 PM bjorkintosh: solarwind, or just make a new shaft if you have the material!
07:10 PM solarwind: Does not have to be strong, but I do want 100% filler coverage between the two because a bore will be machined inside the shafts and I don't want any post-weld stress to shift them out of alignment as I'm boring
07:10 PM solarwind: bjorkintosh that would be the first choice, but I have a lot of scrap I don't want to throw out
07:11 PM solarwind: also learning is fun
07:11 PM bjorkintosh: always.
07:12 PM bjorkintosh: I need to buy a simple mill or something to use linuxcnc on.
07:12 PM solarwind: So yeah, just want the coverage for rigidity, don't really need strength, so RbCuZn-C is plenty strong
07:12 PM solarwind: bjorkintosh I have 3 mills I haven't even used sitting here lol
07:13 PM bjorkintosh: from alibaba?
07:13 PM solarwind: no, legit big machines, > 2 tons each
07:13 PM bjorkintosh: oh no. it'll break my desk.
07:13 PM Tom_L: bjorkintosh, so what are you waiting for?
07:13 PM solarwind: need a clean up and paint job, but otherwise fully working
07:13 PM bjorkintosh: Tom_L, 1. Don't know which kind to get yet.
07:13 PM Tom_L: i built mine
07:13 PM bjorkintosh: say more.
07:13 PM bjorkintosh: how much did it cost?
07:13 PM Tom_L: idk
07:14 PM solarwind: bjorkintosh the kind blondihacks uses
07:14 PM Tom_L: i got good electronics but the rest was surplus
07:14 PM bjorkintosh: solarwind, p. matthews?
07:14 PM solarwind: I fucking hate them, but yes
07:14 PM Tom_L: literally from a scrap yard
07:14 PM solarwind: they're identical to other Imports of the "R45" (if I can remember correctly) type
07:15 PM solarwind: RF-45
07:15 PM Tom_L: bjorkintosh, make one with epoxy granite
07:15 PM solarwind: you can, or you can just buy one for a very low price and start making the parts you actually want
07:15 PM Tom_L: my goal was a bit different
07:15 PM solarwind: you can make a better mill using that mill later on
07:16 PM bjorkintosh: Tom_L, yes I've seen Dan Gelbart's videos.
07:16 PM Tom_L: having a mill is great but learning along the was more important to me
07:16 PM bjorkintosh: I've lusted after it.
07:16 PM solarwind: bjorkintosh his lathe is the real gem
07:16 PM solarwind: the air bearing one
07:16 PM solarwind: it's such a tease. But he doesn't publish any actual information about it
07:16 PM bjorkintosh: he's also a billionaire. more importantly, a billionaire with time.
07:17 PM solarwind: actually?
07:17 PM bjorkintosh: Actually.
07:17 PM solarwind: how did he get that rich?
07:17 PM bjorkintosh: by attracting rich people. it's the only way.
07:17 PM bjorkintosh: https://www.youtube.com/playlist?list=PLlkx3gSXbdKAl4oUtflEJE_vSX-hYZHrn
07:17 PM bjorkintosh: he also used to teach ^
07:17 PM solarwind: well the typical way is taking advantage of others
07:18 PM solarwind: that's how the overwhelming majority of rich people get rich
07:18 PM bjorkintosh: solarwind, yes. I forgot. there's inheritance too. but no. he sold his business for 1.2 billion to Kodak
07:18 PM solarwind: and yet he DIY a precision lathe and uses the words "you can buy granite slabs on ebay quite economically"
07:19 PM solarwind: now I know what "economical" means
07:19 PM Tom_L: rather loose term
07:19 PM solarwind: I like the cylo's garage kid
07:20 PM solarwind: his diamond air bearing lathe turns lenses and can be built _actually_ affordably
07:21 PM bjorkintosh: Tom_L, do you have a pix of your machine by any chance?
07:21 PM Tom_L: lots
07:21 PM bjorkintosh: I've always wanted to put together an EDM
07:21 PM bjorkintosh: lots and lots of information available on that one.
07:21 PM Tom_L: nothing really to brag about
07:21 PM solarwind: watch Applied Science on youtube, I love that guy, he built one
07:21 PM bjorkintosh: Tom_L, it exists. That means it's real. it has been ... real_ized
07:22 PM bjorkintosh: solarwind, yes. I also have the books by Ben Fleming on the same subject. I met him once and he showed me two he'd built.
07:23 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Mill_Steel/Assembly/Final/chip_guards/Chip_guard4.jpg
07:23 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Mill_Steel/Assembly/Final/chip_guards/Chip_guard5.jpg
07:23 PM Tom_L: running mesa cards & gecko drives
07:23 PM solarwind: ewwww gecko
07:24 PM Tom_L: they're rather hard to beat
07:24 PM Tom_L: unless you're scavenging commercial drivers
07:24 PM solarwind: TM5160 beats it
07:24 PM solarwind: TM5160 beats it in every possible way
07:25 PM solarwind: TMC5160* https://www.analog.com/en/products/tmc5160.html
07:25 PM solarwind: bigtreetech makes modules for like $20 each
07:25 PM Tom_L: mine are 80v iirc
07:26 PM Tom_L: and only uses 10 microsteps
07:26 PM Tom_L: idle shutdown
07:26 PM solarwind: I've tested the TMC drivers a lot and studied the waveforms, I will recommend them every single time
07:27 PM Tom_L: but i don't see a driver ready to go
07:28 PM solarwind: Tom_L https://biqu.equipment/collections/driver-board/products/bigtreetech-tmc5160-v1-0-driver-spi-mode-silent-high-precision-stepstick-stepper-motor-driver-with-heatsink-for-skr-v1-3-gen-v1-4-reprap?variant=40447048024162
07:28 PM solarwind: That price is for two
07:28 PM Tom_L: i'm not in the market
07:29 PM Tom_L: where do you put the heatsinks?
07:29 PM solarwind: That wasn't you in the heels on the corner there?
07:29 PM Tom_L: don't tell me it doesn't need em
07:29 PM solarwind: it shows you in the picture
07:29 PM solarwind: Over the MOSFETs
07:29 PM solarwind: the MOSFETs are the 8 chips between the two big capacitors
07:30 PM Tom_L: what sort of protection does it have?
07:30 PM solarwind: you'll have to read the datasheet
07:30 PM Tom_L: naw, i don't need one
07:30 PM solarwind: Their implementation is pretty much as recommended in the datasheet
07:31 PM Tom_L: i'm sure they're probably ok
07:31 PM solarwind: It supports encoder feedback for detecting missed steps, etc.
07:31 PM solarwind: they're far better than the gecko shit, I've been following for years
07:31 PM solarwind: they raise a big stink over "midband resonance"
07:32 PM solarwind: the TMC does all of that compensation on its own is far more flexible. The µC interface is a joy to work with
07:48 PM Unterhaus_ is now known as Unterhausen
07:48 PM Unterhausen: I didn't know tmc was analog device
07:48 PM Unterhausen: they do step dir too?
07:48 PM Tom_L: looks like SPI
08:42 PM solarwind: Unterhausen analog bought them
08:42 PM solarwind: very recently
08:42 PM solarwind: Tom_L lol it supports multiple modes and industrial devices use them
08:43 PM solarwind: You have to read the datasheet dawg
09:02 PM Tom_L: if i were shopping for one i might
11:45 PM solarwind: Damn, this CBN wheel is insane
11:45 PM solarwind: 600 grit puts such a sharp edge on HSS tools
11:46 PM solarwind: the grinding is very cool and doesn't overheat the metal