#linuxcnc Logs
Jan 09 2024
#linuxcnc Calendar
12:21 AM roycroft: it's getting rather blustery here
12:35 AM roycroft: 40km/h wind gusts
12:35 AM roycroft: but snow is gone from the forecast
12:35 AM roycroft: 40mm of rain on friday, though
12:35 AM XXCoder: yup
12:35 AM roycroft: and 24mm tomorrow
12:35 AM roycroft: so it's going to be a very wet week
12:35 AM roycroft: vancouver bc got snow today, and more is coming
07:23 AM Guts71: In linuxcnc can visualize the variation of the electric motor in the drive ?
07:24 AM Tom_L: halscope maybe
07:25 AM Tom_L: your question is rather vague
07:31 AM JT-Cave: if you have feedback into linuxcnc you can
07:31 AM NoSpark: Guts71: If you mean can you visualise the magnetic fields in a moter?
07:31 AM NoSpark: hm2_eth: ERROR: ioctl SIOCSARP failed: Operation not permitted
07:31 AM NoSpark: Any ideas?
07:35 AM Guts71: NoSpark I mean like torque-speed curve !
07:35 AM Tom_L: halscope
07:59 AM pcw--home: NoSpark: sounds like wrong permissions
08:12 AM NoSpark: I'm thinking it is missing kernel module or some such.... this computer is running a modified kernel
09:13 AM bjorkintosh: https://arstechnica.com/security/2024/01/network-connected-wrenches-used-in-factories-can-be-hacked-for-sabotage-or-ransomware/
09:14 AM solarwind: roycroft the wind does tend to do that more often than not
09:14 AM solarwind: Crazy times! What will they think of next, rain that drops water on your head from the sky?!
09:16 AM solarwind: Someone here told me his rooster crowed but his crows don't roost. I don't know which way is up or down anymore!
09:31 AM CloudEvil: https://i.imgur.com/D3fkxHV.mp4
09:31 AM CloudEvil: Double walled clay mug.
09:31 AM CloudEvil: ^machine
09:33 AM Roguish: good morning...... chilly, in the 40s, and getting ready to rain.
10:07 AM Rab: <CloudEvil> https://i.imgur.com/D3fkxHV.mp4
10:07 AM solarwind: Not even in an elevator does this much small talk about the weather occur
10:07 AM Rab: Thousand dollar clay mugs--sold out! https://prattceramics.com/collections/all
10:08 AM Rab: https://prattceramics.com/products/double-wall-insulated-ceramic-mug-87-auction
10:09 AM Rab: very suspicious
10:10 AM Rab: I guess there's a hole in the outer wall to keep it from blowing out during firing.
10:13 AM zyp: I have some double wall drinking glasses, they've got a plugged hole in the center of the outer bottom
10:15 AM Rab: Yeah, I have several types of Bodum insulated glasses (and decent knockoffs), and they all have some kind of small plug in the bottom.
10:15 AM zyp: yeah, that's the ones I've got too
10:16 AM Rab: I like them a lot, except that they feel really light and fragile. But they're surprisingly tough; I've only broken one and that was through extreme abuse.
10:17 AM Rab: Muy bueno for cold beer in the Texas summer.
11:08 AM solarwind: Lead is such a great material to make weighted mounts/bases for things
11:08 AM solarwind: Make a 3D printed base/holder for it and put some lead weights in there
11:09 AM solarwind: I have about 4 tons of lead right now :P
11:14 AM Tom_L: mess to machine
11:15 AM solarwind: easiest thing to machine
11:15 AM Tom_L: but it's a mess
11:15 AM solarwind: how? It makes nice small chips
11:15 AM Tom_L: we used to make lead wing ballast along with tungsten for the smaller places
11:17 AM Tom_L: i got a piece of cutoff i use as a door stop
11:21 AM solarwind: my only concern with lead is touching it easily gets into your skin
11:21 AM solarwind: Not necessarily absorbed through the skin, but just into the valleys of your fingerprints and into the surface features since it's so soft
11:22 AM lcnc-relay: <zincboy_ca_on> Not really.
11:22 AM solarwind: It comes off easily when you wash your hands, but still
11:22 AM solarwind: I don't want to worry about touching something else and then eating food and it getting in my body
11:22 AM lcnc-relay: <zincboy_ca_on> We use lead solder at work and the people that work with it every day, all day get their lead levels tested every year. No change in the last 20 years.
11:23 AM solarwind: yeah I'm not saying it's dangerous at all, unless you eat it
11:24 AM Tom_L: no worse than eating mercury
11:24 AM solarwind: But if I"m using it as weights for anything that may be handled by children, I will encase it in steel or hot dip it in plastic
11:24 AM solarwind: mercury is a whole different beast
11:25 AM solarwind: mercury is highly toxic, especially its salts. And certain organic mercury compounds even go through nitrile gloves into your skin and you'll be dead
11:25 AM Rab: I have a long history with both lead-bearing solder, and lead printing type (very similar tin/lead alloy). My practice is to wash hands with pumice soap after handling the material, before doing anything else.
11:26 AM solarwind: Rab yeah that pretty much eliminates any risk
11:26 AM solarwind: it's overall very safe, and I think the most highly recycled metal(?)
11:26 AM Tom_L: you think?
11:26 AM solarwind: like 95%+ frrom batteries gets recycled
11:27 AM Rab: I have known old electronics people, and very old career printers, and both populations seemed fine as far as lead exposure goes.
11:29 AM solarwind: I tend to fidget with things a lot - very random things like plumbing valves, pipe fittings, whatever
11:29 AM Rab: But if you look at old photos of newspaper typesetting rooms, obviously everybody's got a cigarette stuck in their mouth. ;)
11:29 AM solarwind: the leaded brass definitely leaves grey residue on your hands
11:29 AM solarwind: the lead free brass does not
11:29 AM Tom_L: Rab, so did all the movies of that era
11:30 AM Tom_L: and just about everything else
11:30 AM Rab: Tom_L, everybody smoked, but the point is that they were handling both lead type (and typecasting equipment) and cigarettes at the same time, which is a no-no.
11:31 AM Tom_L: probably not much worse than newsprint ink of the era
11:32 AM Tom_L: everybody read the paper back then
11:43 AM Unterhaus_ is now known as Unterhausen
11:43 AM Rab: I dunno about the ink itself, but the presses were probably cleaned with benzine and carbon tetrachloride and who knows what else.
11:43 AM Tom_L: heh
11:43 AM Unterhausen: I had a dream that my two desks should be back to back.
11:45 AM roycroft: that's better than front to front
11:45 AM roycroft: it's a lot easier to slide the chairs in and out
11:54 AM Unterhausen: the way it is now, a windows computer and a linux computer have to share the same space
11:54 AM Unterhausen: surprised there haven't been any meltdowns
12:02 PM Tom_L: i use one pc for that and boot off different ssd
12:03 PM Rab: I've had two nice "vintage" Steelcase desks since the '90s. I kept one in each bedroom, back to back through the wall because I thought it was cool and obvious. But I was never able to plan the layout of either room very well, with a big desk always rooted to the same spot. It became a considerable burden over the years. Then eventually I had a blinding epiphany: I could just put the desks
12:03 PM Rab: wherever. The pleasing symmetry just wasn't that important.
12:04 PM roycroft: steelcase gear is definitely industrial strength
12:05 PM Rab: This idiotic story has nothing to do with LinuxCNC, but I guess I'm triggered by the dreamy ideal of back-to-back desks.
12:05 PM Tom_L: fairly recently got a couple more file cabinets and discovered they weigh about half as much as the first one
12:05 PM roycroft: i've seen south bend lathes mounted on steelcase desks
12:06 PM roycroft: one could convert those lathes to cnc
12:08 PM Rab: Yeah, they're tough. I bought mine at a gov auction for like $30/pair, because the aesthetic was no longer fashionable...now people call them "tanker" desks and they sell to hipsters for $500.
12:08 PM Rab: http://reboots.g-cipher.net/time/image/timedesk.jpg
12:08 PM roycroft: i used to have a bunch of steelcase file cabinets
12:09 PM roycroft: i got rid of them after i got my new printer with the high speed document scanner - i've done a big scan and shred thing over the past few yeas
12:09 PM roycroft: years
12:10 PM roycroft: i had a steelcase desk in my shop many years ago as well, but i don't remember when/why i got rid of it
12:10 PM Rab: I just bought an antique Rivett second-op lathe to convert to CNC. It came without a cabinet, and I did briefly consider putting it on a metal desk...
12:25 PM Unterhausen: I wonder if there are any more of those old desks on campus now.
12:33 PM Unterhausen: I'm pretty sure I helped move a SB lathe onto a steecase desk. Been a while though.
01:51 PM Tom_L: JT-Cave, build config didn't save Maximum Fwd rpm
01:52 PM Tom_L: and max rpm is now maximim rev
01:53 PM Tom_L: well, saves but doesn't reload it
01:54 PM Tom_L: min max fwd rev velocity
01:55 PM Tom_L: scale saves but doesn't reload. i assume that's encoder scale
01:56 PM JT-Shop: ok
01:57 PM JT-Shop: for a 7i77 it wants the step scale lol
01:57 PM JT-Shop: just trying to get a config going for the bp knee mill so I can machine a slot
01:57 PM Tom_L: i'm building atm
02:00 PM Tom_L: #65 up
02:03 PM JT-Shop: ok
02:03 PM Tom_L: yeah writes but doesn't read back
02:04 PM JT-Shop: did you start from scratch and use max rpms?
02:04 PM JT-Shop: when I found out the actual ini names I changed the tool
02:04 PM Tom_L: no loaded a 7i96s i use for testing
02:04 PM Tom_L: then build with 2.1.0
02:04 PM Tom_L: after backup
02:05 PM Tom_L: the rebuild should have caught anything old
02:06 PM Tom_L: the original would have been max rpms yes
02:07 PM Tom_L: but that moved to max rev after the rebuild with 2.1.0
02:07 PM solarwind: Don't ya just hate it when you're eating meat and a sharp bone just stabs you right in the roof of your moth or gums?
02:07 PM solarwind: why can't these damn animals have no bones
02:07 PM Tom_L: boil it longer
02:07 PM XXCoder: hurry up and create boneless animal
02:07 PM XXCoder: make sure 99% of animal is eatable
02:08 PM solarwind: yeah if you pressure cook/boil fish, it makes the bones nice and soft and edible
02:08 PM solarwind: fish bones are relatively soft
02:08 PM Tom_L: they soak in water their entire life :)
02:08 PM solarwind: mammalian/avian bones are hard
02:08 PM XXCoder: but fishies dont have same kind of meat
02:09 PM solarwind: a nicely cooked salmon is my favourite
02:09 PM solarwind: red meat is unhealthy in general
02:09 PM solarwind: but my body does benefit from the high protein and nutrients that it has once a week or so
02:10 PM solarwind: the polysaccharides in red meat is inflammatory to the digestive tract
02:10 PM XXCoder: yeah humans only need around one steak worth of meat a week
02:11 PM solarwind: my cat eats ONLY meat
02:11 PM solarwind: my rats get fed only a plant based diet
02:11 PM solarwind: the volume of food 3 rats eat is much more than my cat
02:12 PM solarwind: I mean more than the volume of food my cat eats
02:12 PM solarwind: it's insane how energy dense fat and protein is
02:12 PM solarwind: plants are rich in vitamins and minerals but very little protein and fat and takes a lot of energy to digest it
02:13 PM solarwind: it's almost like... there's an obvious answer to the obesity issue in the USA
02:24 PM JT-Shop: crap can't use the mpg to jog with after homing
02:31 PM JT-Shop: fingered out that problem with help from Chris
02:31 PM CaptHindsight: solarwind: sell less food?
02:35 PM Tom_L: i think i finally fixed my mpg jog scale. brought it in and looked at the wiring under magnification and found a bad solder joint on the switch
02:35 PM Tom_L: ran 3-4 programs since with no issues
02:37 PM Tom_L: no way to scale the jog with the axis buttons is there?
02:37 PM Tom_L: that's one thing axis lacks
02:37 PM Tom_L: keyboard that is
02:44 PM JT-Cave: scale the incremental jogs?
02:44 PM Tom_L: yeah
02:45 PM Tom_L: the pendant is great for that
02:48 PM JT-Shop: maybe with a pyvcp panel
02:53 PM Tom_L: possibly
02:54 PM Tom_L: i didn't look for that until the scale broke on the pendant
02:57 PM JT-Shop: so now I need to add an input option to enable both joint and axis jog
02:58 PM Tom_L: i wonder now how much i'd have to change the config from 2.8.4 on wheezy to bookworm 2.9.2
02:58 PM Tom_L: no immediate plans for that but thinking about it
02:59 PM JT-Shop: Andy wrote a conversion script
02:59 PM Tom_L: last one i used got most of it but not all
02:59 PM Tom_L: iirc it missed some of the spindle stuff
03:01 PM Tom_L: i don't think that much has changed since 2.8
03:01 PM Tom_L: maybe some joint settings
03:02 PM Tom_L: maybe a few depreciated settings
03:43 PM bjorkintosh: okay. this just blew my fucking mind: https://www.youtube.com/watch?v=0rJnXZsrMjU
03:44 PM XXCoder: ll been a while since I last saw that video
03:45 PM XXCoder: someone made a working lego airplane too
03:45 PM Rab: Haha, did they glue the bricks together?
03:46 PM Unterhausen: I like the flying snoopy doghouse better
03:46 PM XXCoder: Rab: not real bricks, but large scale ones
03:46 PM bjorkintosh: a frigging lawn mower???
03:46 PM Unterhausen: I don't think you can mow your lawn with it
03:47 PM bjorkintosh: hahah. it would require some effort.
03:47 PM Unterhausen: although I dug a pretty deep hole with one of my planes, so yardwork is possible
03:48 PM XXCoder: found it
03:48 PM XXCoder: https://www.youtube.com/watch?v=mkv9TALqJ6k
03:49 PM XXCoder: only cheat they did was made wing studs slim
03:53 PM bjorkintosh: nuts!
03:53 PM XXCoder: honestly more powerful the motors, the more sins you can get away with
03:54 PM bjorkintosh: that's true.
03:55 PM bjorkintosh: ICBMS do it regularly
03:57 PM JT-Cave: flying lawnmowers are old hat
03:58 PM bjorkintosh: they are?
03:58 PM bjorkintosh: it's my first hat.
03:59 PM XXCoder: bjorkintosh: https://youtu.be/HHgOBIoPpjU dont wear a hat or it would flip
04:00 PM roycroft: it's those flying sheep you really have to look out for - especially harold
04:02 PM bjorkintosh: haha
04:06 PM JT-Cave: I built one back in the 80's
04:06 PM XXCoder: watching some of those videos
04:07 PM XXCoder: man its like being actually in plane.
04:07 PM XXCoder: i remember one that have toy arms for joystick and trottle
04:08 PM XXCoder: it actually moved when you changed stuff
04:49 PM bjorkintosh: https://www.imdb.com/title/tt0059797/
05:19 PM JT-Cave: I have the VHS of that movie
05:27 PM bjorkintosh: wow. you have a player for it?
05:32 PM Roguish: ooo.. I watched the movie AIRPLANE a few evenings ago. histerical.
05:32 PM JT-Cave: yes
05:33 PM Roguish: bjorkintosh, that's a good movie
05:33 PM Roguish: you guys do know that Google owns IMDB
05:36 PM Tom_L: says amazon does
05:37 PM Tom_L: prime isn't commercial free now either
05:39 PM Roguish: Tom_L, crap, you're right, it's amazon...
05:40 PM Tom_L: the mrs is related to the wright bros
05:43 PM bjorkintosh: Tom_L, she's from Dayton, Ohio then?
05:43 PM Tom_L: nope
05:43 PM bjorkintosh: I've been to the wright patterson AFB air museum.
05:44 PM Tom_L: i'd like to visit the Smithsonian but have been to one of their affiliates here that has alot of early space artifax
05:44 PM bjorkintosh: Tom_L, it's a damned treat.
05:44 PM Tom_L: probably a couple days to see it all?
05:44 PM bjorkintosh: yeah.
05:45 PM Tom_L: the one here has an SR71 mounted in the lobby
05:45 PM Tom_L: the building i think was actualy built around it
05:45 PM bjorkintosh: two days would be sufficient, I say. there is more than one NASM location.
05:45 PM bjorkintosh: the WP AFB museum has an sr71 and a B2.
05:46 PM bjorkintosh: among other things, of course.
05:46 PM Tom_L: we had the apollo 13 capsule here for a while
05:46 PM Tom_L: i think it tours around
05:46 PM bjorkintosh: surprising how tiny it is.
05:46 PM bjorkintosh: quite claustrophobic.
05:46 PM Roguish: the California Science Center in LA, has a Space Skuttle
05:47 PM Tom_L: we have a mockup of part of one
05:48 PM Tom_L: moon rover & lander as well
06:13 PM CaptHindsight: Sky Lab, Sky Lab
06:14 PM CaptHindsight: https://www.youtube.com/watch?v=qLoNQNK376E
07:06 PM Unterhaus_: narrator: it didn't stop flickering
07:30 PM roycroft: wow
07:30 PM roycroft: i haven't heard a steve dahl parody in so long i had forgotten about him
07:44 PM solarwind: https://www.dewalt.ca/product/dcf682n1/8v-max-gyroscopic-inline-screwdriver I just bought this and now I can see why so many people love it
07:44 PM solarwind: nobody seems to be able to get cordless screwdrivers right
07:44 PM solarwind: they're all so damn slow
07:44 PM solarwind: not variable speed
07:45 PM solarwind: Seems they discontinued the DCF682 and DCF680, I have no idea why. It has like 100+ daily purchases on amazon
07:45 PM solarwind: the better model even has a mechanical clutch
07:46 PM solarwind: If they don't come out with an upgraded model, I'm going to make one
07:46 PM solarwind: everybody loves the gyroscopic control, it's so precise
07:47 PM solarwind: There's so many times where even the smallest cordless drill is too big and clunky and you really want is a screwdriver with a high speed fasten/loosen. It doesn't need to have any decent torque
07:48 PM solarwind: same reason why the M12 high speed ratchet is by far the most popular model. Looks like the manufacturers still don't understand that speed is the most important feature
07:49 PM solarwind: nobody gives a shit if the ratchet can do 100N·m. That's just 100N·m that's going to slam your hand into the nearest part of the frame
07:49 PM solarwind: they're slowly catching on with the reactionless air ratchets though, those are all high speed and "reactionless" so they just "slip" when you bottom out the nut instead of throwing you across the room
07:52 PM solarwind: The odd thing is, there's nothing complicated about gyro control, that's been around forever and it's incredibly precise. I have a gyrosopic controlled mouse from 15 years ago that I can control just as well as a regular mouse or even better than a trackpad.
07:52 PM solarwind: There's no "stiction" unlike a variable speed trigger on a regular drill, so the speed control is incredibly smooth
07:53 PM solarwind: Of course none of this _really_ matters for the average joe contractor. But there's a reason all you see when you google DCF682 is how much people love it
07:54 PM solarwind: There's something about the tactile sensation/feedback of a good control system doing exactly what you want it to do
09:50 PM -!- #linuxcnc mode set to +v by ChanServ
10:35 PM roycroft: it is blustery again tonight, with some freezing rain mixed in with the rain
10:36 PM Tom_L: we're headed for a temperature plunge
10:36 PM XXCoder: lots wind here. considering it was heavily raining, land is very dry now