#linuxcnc Logs

Sep 17 2021

#linuxcnc Calendar

01:20 AM Deejay: moin
01:53 AM Loetmichel: aw, maan. Another hero of my youth gone. The impacts come closer :( ... RIP Sir Clive Sinclair.
01:53 AM Loetmichel: mornin' btw
01:54 AM XXCoder: hey and yeah
03:46 AM fdarling: so LinuxCNC has horribly performance if Linux has booted in Secure Boot mode, because it cannot enable raw I/O access and gives up on realtime entirely. It could ignore this since we don't need direct I/O access for Mesa cards and the like, only for parallel ports (maybe?)
03:47 AM fdarling: unfortunately, I cannot figure out how to disable secure boot on this particular machine / BIOS :-( it's a model of HP of which I have multiples, but this one is behaving differently for some reason
06:19 AM rs[m]: fdarling: do you have any error messages
07:37 AM perry_j1987: hows it going
08:48 AM roycroft: it is friday!
08:49 AM roycroft: and it is national tradesperson day in the usa
09:36 AM JT-Shop: and UPS doubled their prices to down under!
09:40 AM roycroft: yikes
09:40 AM roycroft: they were already high
09:41 AM roycroft: maybe it's time to look at dhl
09:45 AM JT-Shop: if you go to the UPS site and calculate shipping it's 4 times as high as the other day
09:52 AM CaptHindsight[m]: fdarling: yeah why I avoid HP and Dell for LCNC
09:52 AM CaptHindsight[m]: the lack of BIOS features is their feature
09:55 AM JT-Shop: DHL doesn't offer a service to ship the package...
09:57 AM CaptHindsight[m]: ever since DHL USA went bankrupt the service here has been really spotty
09:57 AM CaptHindsight[m]: that was back in '07 or so
10:01 AM CaptHindsight[m]: https://www.youtube.com/watch?v=L2IKCdnzl5k
10:01 AM unterhausen: The dell I just got has a lot of bios settings. Turning off uefi was very confusing though
10:02 AM unterhausen: I am not sure it's much more confusing than other computers
10:03 AM CaptHindsight[m]: well "UEFI ON OFF" would be too confusing, so the BIOS dev came up with something clever
10:03 AM unterhausen: I have to figure out how to keep debian from shutting things down
10:04 AM unterhausen: yeah, you have to enable "legacy roms" then you can turn of uefi on a different screen
10:04 AM roycroft: dell want you to install dellware on your computer
10:04 AM unterhausen: I was going to try to use uefi, but then I couldn't boot off of my hard drive
10:05 AM roycroft: i don't know if they still do this, but they used to ship their own flavor of windows with their machines
10:05 AM roycroft: a stock microsoft distribution would not work
10:05 AM unterhausen: you can get windows from microsoft and install it with your dell key, I do it all the time
10:05 AM roycroft: there used to be device driver issues with the microsoft distro
10:06 AM roycroft: i'm talking about a very long time ago - like 20 years ago
10:06 AM unterhausen: microsoft was hesitant to let you download windows, which was a pretty big problem
10:06 AM roycroft: i haven't had a dell computer since then
10:06 AM roycroft: dell used to have their own linux distro as well
10:06 AM roycroft: which was rh-based, i believe
10:06 AM unterhausen: I wouldn't, but I have gotten some really nice computers for $25-$40
10:07 AM roycroft: they like to take good, off-the-shelf, well-supported hardware and tweak it just a wee bit so that you have to use their drivers
10:07 AM roycroft: they are far from the only vendor who have played those kinds of games
10:07 AM unterhausen: mostly I get pro level stuff, so maybe the consumer level computers have more of that adware
10:08 AM unterhausen: business customers wouldn't put up with it
10:08 AM unterhausen: dell hardware is very solid, especially the workstations
10:08 AM unterhausen: they last forever
10:09 AM CaptHindsight[m]: UEFI doesn't work with RTAI
10:09 AM unterhausen: I have switched to ethernet cards, so no need for rtai
10:09 AM CaptHindsight[m]: yet
10:10 AM roycroft: dell hardware is pretty robust
10:10 AM unterhausen: when I was researching how to get uefi to boot off of my hard drive, I found reference to dell customer service telling people to turn it off because uefi was too complicated
10:10 AM roycroft: i just don't like how proprietary it is
10:11 AM unterhausen: I really like their cases and it's too bad they don't fit anyone else's motherboards
10:11 AM CaptHindsight[m]: I forget the combo of drive config and UEFI required to make it work
10:11 AM JT-Shop: global post offers good rates but I've never used them or know where to drop off a package
10:11 AM roycroft: they also used to make rack rails that did not fit any but dell racks
10:11 AM unterhausen: I think my recent purchase needs a new bios to get uefi to work better
10:12 AM roycroft: we had some used dell servers where i had to fabricate rack ears
10:12 AM CaptHindsight[m]: how they control you from upgrading or repairing
10:12 AM unterhausen: for $40, I will buy another computer :)
10:12 AM CaptHindsight[m]: you just buy, you no think or do
10:12 AM unterhausen: But at work, I have 15 year old workstations that are still working great
10:13 AM CaptHindsight[m]: but Dude you're gettin a Dell
10:13 AM unterhausen: no point in upgrading
10:13 AM unterhausen: anyone else's computer would have died 7 years ago
10:13 AM CaptHindsight[m]: HP and Packard Bell were similar
10:13 AM JT-Shop: my 386 still runs the VMC!
10:14 AM JT-Shop: hmm global post hands off to usps so that's not good
10:14 AM unterhausen: I have had bad luck with HP.
10:14 AM CaptHindsight[m]: if Dell made CNC machines you'd need all new tooling
10:14 AM roycroft: hp also use a lot of intergrated proprietary hardware
10:15 AM roycroft: we've had a number of hp servers where i've had to disable the on-board stuff and install more standard cards in the pci slots
10:15 AM roycroft: disk controllers and network adapters, primarily
10:15 AM unterhausen: HP is horrible. At least Dell uses engineers to design their systems
10:16 AM unterhausen: if it weren't for penn state surplus, I'm not sure what I would be buying. Something off of newegg, no doubt
10:16 AM CaptHindsight[m]: their salespeople give the best non answers to questions
10:17 AM unterhausen: I did think about getting an HP the other day, but the ones they are selling have no expansion
10:17 AM CaptHindsight[m]: how long does X last? "we are still evaluating and collecting that data"
10:17 AM unterhausen: might do it anyway
10:17 AM unterhausen: dell is very conservative. They won't sell you something if they haven't tested it
10:18 AM unterhausen: can be a pain sometimes
10:18 AM unterhausen: like we wanted to do some processing on graphics cards and they wouldn't configure the system the way we wanted
10:18 AM unterhausen: so we had to do it ourselves. Makes procurement more difficult
10:19 AM CaptHindsight[m]: Dell CNC machines would use Metric inches and a new form of programming called "D-code"
10:19 AM CaptHindsight[m]: it would look like standard G-code but everything would be just a little different
10:22 AM unterhausen: Gene is still talking to himself on the dev list
10:23 AM CaptHindsight[m]: he is a good listener
10:23 AM unterhausen: we are headed towards an increasingly proprietary future
10:24 AM unterhausen: I'm struggling to remember where I saw a discussion of how to fix the screen saver on the livecd version of lcnc
10:24 AM unterhausen: mailing list, probably
10:25 AM CaptHindsight[m]: hah Debian
10:25 AM CaptHindsight[m]: it's a game they play
10:25 AM CaptHindsight[m]: find the screen blanking settings that work
10:27 AM CaptHindsight[m]: more of the won't fix the graphical tools, you should know the command line fix for this
10:27 AM unterhausen: mint was really easy
10:28 AM CaptHindsight[m]: heresy
10:30 AM unterhausen: I was looking at how to make uefi work with debian and the page looked really promising except they quickly started discussing something in hexadecimal
10:30 AM unterhausen: MEGO
10:31 AM CaptHindsight[m]: Why is Linux Mint so popular?
10:31 AM CaptHindsight[m]: Linux Mint has been hailed by many as the better operating system to use when compared to its parent distro
10:31 AM unterhausen: same thing happens now when I look at how to disable the screensaver
10:31 AM unterhausen: question has a batch of hexadecimal
10:32 AM CaptHindsight[m]: nice
10:32 AM unterhausen: mint is debian where they just use working utilities
10:33 AM unterhausen: and the installer knows where to find the usb drive
10:34 AM CaptHindsight[m]: maybe it is M$ getting their revenge on Linux
10:34 AM CaptHindsight[m]: sends devs out to all the popular distros
10:35 AM CaptHindsight[m]: change things for the fun of it or so it's new, fix things that aren't broken, don't fix things that are broken
10:37 AM unterhausen: debian has always been this way. I remember trying to install it back in the floppy drive days and it asked a million questions, many of which I didn't care about
10:38 AM unterhausen: debian is probably one reason why there are so many distros, "I can do better than this"
10:39 AM unterhausen: many of the answers about the screen saver involve command lines, but I can't tell what they do so I'm not going to try them
10:40 AM unterhausen: going to go see if I can do it via a batch of clicking
10:41 AM CaptHindsight[m]: a few debian versions ago I recall we first turned off the screen saver, then killing DPMS, then finally removing the feature from the kernel
10:43 AM CaptHindsight[m]: a graphical tool would end all the blanking drama
10:43 AM CaptHindsight[m]: and who wants that?
10:44 AM CaptHindsight[m]: plus you know, do the command line stuff you loser
10:47 AM unterhausen: I guess it's still a custom kernel
10:48 AM unterhausen: this is the lcnc distro and it still gets to a lock screen even though the latency test is running
10:49 AM CaptHindsight[m]: well Andy doesn't have all the time in the world
10:50 AM CaptHindsight[m]: and look how fucking hard they make it to turn off
10:50 AM * roycroft still finds debian the most reliable and easy to install linux distro he's ever used
10:51 AM roycroft: i guess different folks like to do things in different ways
10:51 AM roycroft: thank goodness there are a zillion linux distros - there should be one to fit almost any person's preference
10:52 AM CaptHindsight[m]: maybe Roycroft has been sworn to secrecy as to how to kill the screen blanking
10:53 AM roycroft: i've never experienced that
10:53 AM roycroft: however, i normally install debian on headless machines
10:53 AM CaptHindsight[m]: what i would expect you to say if sworn to secrecy
10:54 AM roycroft: i'm not good at keeping secrets
10:54 AM roycroft: if i were sworn to secrecy i'd probably mess up eventually
10:54 AM roycroft: so stay tuned, if you think that i am
10:55 AM unterhausen: the install wasn't bad once I figured out how to make it read the usb drive
10:56 AM unterhausen: no way I would call it easier, it's essentially the same as every other distro
10:56 AM unterhausen: the usb drive problem is pathetic, especially since the internet tells me it has been happening for many distros now
10:58 AM unterhausen: of course, very few distros care much about the installer. I am trying to remember which one woudln't install if it didn't have network
10:58 AM unterhausen: even if you were installing off of local media
11:00 AM unterhausen: if they could all just copy ubuntu's installer, that would be great
11:02 AM roycroft: i don't know that i've ever used the debian gui installer, except when installing proxmox pve, which only has the gui installer
11:02 AM roycroft: i install proxmox off a thumb drive, btw
11:03 AM roycroft: and it is kind of a pain in the butt, because i usually don't have a mouse to use for the install
11:04 AM roycroft: navigating its gui installer with tab and arrow keys is not much fun
11:04 AM roycroft: but it's easier than finding a mouse when in a data center
11:07 AM unterhausen: I wish they would just let you choose your login and language and then go from there
11:07 AM unterhausen: "are you sure you want to overwrite this completely blank hard drive?" "are you really sure?"
11:09 AM unterhausen: actually, ubuntu's graphical installer would occasionally work fine and then they set the graphics up wrong and you would have to fix it on the command line
11:09 AM unterhausen: now that's a great beginner experience
11:13 AM CaptHindsight[m]: be the change you weant to see but the devs will never accept your changes :)
11:14 AM unterhausen: debian probably doesn't have a dev in charge of the installer
11:14 AM unterhausen: so that's why nothing ever gets fixed
11:17 AM unterhausen: who wants to do that? They all want to write a new compiler or something
11:17 AM CaptHindsight[m]: nah change the font layout
11:19 AM unterhausen: move the buttons around on the desktop
11:19 AM unterhausen: imagine putting "dev in charge of debian installer" on your cv
11:20 AM CaptHindsight[m]: who wants old buttons? ewe
11:20 AM unterhausen: "why wouldn't it read from the flash drive it booted from?"
11:21 AM unterhausen: of course, that's better than admitting you worked on a dell bios
12:57 PM unterhausen: okay, turning off the lock screen is extremely well hidden
12:59 PM unterhausen: I guess I'll ask on the mailing list, can't figure out where it would go on the forum
01:01 PM roycroft: i'm getting real interseted in trying linuxcnc on an rpi 4, using x11 tunneling via ssh as the user interface
01:02 PM roycroft: it seems the best prices on decent rpis that are actually in stock is on amazon, and i get 5% cash back rewards if i use my discover card on amazon staring 1 october, so i'm going to try to old off a couple weeks to order it
01:02 PM roycroft: i suppose i could do some testing on an old rpi 3 that i already have in the meantime
01:03 PM roycroft: if it works well it would be a great way to run cnc machines
01:04 PM roycroft: i'm not sure a pendant would be all that necessary/useful for a router, although perhaps when i'm using it in conventional router table mode a pendant might be nice for moving the fence
01:05 PM unterhausen: I intend to have an mpg, not sure about a pendent
01:06 PM roycroft: i'm not sure if i even want/need that for the router
01:06 PM unterhausen: I feel like you'll want to move it and jogging with the keyboard is not always that great
01:06 PM roycroft: perhaps
01:07 PM roycroft: but runnign it headless would not affect that ability
01:07 PM unterhausen: a pendent is cheaper than an mpg
01:07 PM roycroft: i could find a way to integrate a pendant into the router table base
01:07 PM roycroft: i'd have to see about mesa card support for that
01:08 PM unterhausen: mesa sells a card, or you could get a usb pendent and go with that
01:08 PM roycroft: the pendant interface card i have for my mill connects to the 7i76, iirc
01:09 PM roycroft: and you're right
01:10 PM roycroft: keyboard jogging is probably not what i would want to do all the time, especially since it will be using a laptop that's not directly connected to the machine
01:10 PM unterhausen: x forwarding should work better
01:11 PM unterhausen: you can use windows remote desktop :)
01:11 PM roycroft: then i would have to install windows
01:11 PM roycroft: i think not
01:11 PM unterhausen: details
01:11 PM roycroft: if i'm going to go down that dark path i might as well just get mach3
01:11 PM unterhausen: let's not go that far
01:12 PM * roycroft blasphemes
01:12 PM unterhausen: grbl
01:12 PM roycroft: you should see someone about that
01:13 PM unterhausen: I think winders remote desktop into linux machines is a win11 thing anyway
01:13 PM roycroft: i actually used a windows-based x server a long, long time ago
01:13 PM unterhausen: I have used it a lot
01:14 PM roycroft: as in the days of windows 3, and it needed some third party memory manager
01:14 PM roycroft: i forget what it was called, but it was the ubiquitous one
01:14 PM roycroft: q something
01:27 PM Eric_ is now known as unterhausen
01:27 PM unterhausen: yeah, I think the one we used to use is expensive now
01:27 PM unterhausen: when it's built in to windows, that's going to kill the market
01:27 PM unterhausen: found the answer to turning off the screen locker, of course after I asked on the ml
01:27 PM CaptHindsight[m]: i was flipping through the AM stations in the car last night
01:27 PM unterhausen: and right away, I had a real time error, so that wasn't it anyway
01:27 PM unterhausen: got to fiddle with the bios
01:27 PM CaptHindsight[m]: do you guys all have hate radio stations near you? I could not believe the shouting of lies and propaganda that was on. It was relentless except for commercial breaks for some sort of wonder pills or treatments for some "illness"
01:27 PM CaptHindsight[m]: reminds me of the old clips from 1930's Germany
01:29 PM roycroft: some of it is probably both, because jesus people have turned into hateful truth deniers
01:29 PM unterhausen: there is a post on the forum that says to just run the fans on high all the time, I think not, that's really loud
01:29 PM roycroft: so i stick to the fm band
01:29 PM roycroft: and to frequencies below 90MHz
01:29 PM roycroft: er, 92MHz
01:29 PM unterhausen: fm band is pretty bad here, I guess there is more money in country somehow
01:30 PM roycroft: krvm is one of the stations i listen to a lot
01:31 PM roycroft: it's the oldest fm station on the west coast, licensed by the local high school district
01:31 PM roycroft: it has student trainee djs during the day, and an electic mix of volunteer djs nights and weekends
01:31 PM unterhausen: there are a number of power settings on my comp, I wonder if some are worse than others
01:32 PM roycroft: i also listen to klcc, the local npr station, kwva, the university student-run station, and kwax, the university classical station
01:32 PM CaptHindsight[m]: roycroft: this was WLS 890
01:32 PM roycroft: all are non-commercial
01:32 PM roycroft: wls used to be a great station
01:33 PM roycroft: back in the days of larry lujack and dick biondi and that ilk
01:33 PM roycroft: when i was growing up i listened to wls and wcfl
01:33 PM CaptHindsight[m]: I could write script for them. It is just pure writers embellishment and fantasy
01:33 PM roycroft: until wxrt started playing rock music at midnight
01:34 PM roycroft: when i was a kid wxrt was ethnic programing from dawn until midnight, then it was off the air overnight
01:34 PM CaptHindsight[m]: though I would include space aliens and anal probes a bit
01:34 PM unterhausen: I"m tryin' to fix a latency problem here, and y'all are talking about chicago
01:34 PM unterhausen: nobody needs that
01:34 PM roycroft: it started playing progressive rock starting at midnight in the late '60s or so
01:35 PM CaptHindsight[m]: fix the clock speed
01:35 PM roycroft: then strarted bumping the ethnic stuff until it finally took over 24/7 with the prog rock
01:35 PM CaptHindsight[m]: unterhausen: you want no changing of clock speeds
01:35 PM unterhausen: I think I have control over 4 c-states
01:35 PM CaptHindsight[m]: all power management OFF
01:36 PM CaptHindsight[m]: kill them all
01:36 PM unterhausen: that means the fan is on high
01:36 PM unterhausen: really loud
01:36 PM CaptHindsight[m]: no virtualization
01:36 PM CaptHindsight[m]: yeah
01:36 PM CaptHindsight[m]: sorry
01:36 PM CaptHindsight[m]: get a bigger heat sink
01:36 PM unterhausen: it's a really small case, no room
01:36 PM CaptHindsight[m]: sorry
01:36 PM unterhausen: I'll try turning off hyperthreading and virtualization first
01:37 PM unterhausen: Plus, as we discussed, it's proprietary
01:46 PM unterhausen: huh, fan wasn't really that loud
01:46 PM unterhausen: unfortunately turning all that off didn't fix the latency
01:46 PM unterhausen: is the smi utility available for debian 10?
01:54 PM unterhausen: the smictrl utility was last updated in 2013
01:55 PM unterhausen: doesn't seem like good news
01:55 PM CaptHindsight[m]: and in more goo dnews: lots of BIOSes are broken
01:56 PM CaptHindsight[m]: they do what the settings actually say
01:56 PM CaptHindsight[m]: you can have an option that actually just gets ignored
01:57 PM CaptHindsight[m]: or think of it like a switch on the wall that is not connected
01:57 PM CaptHindsight[m]: they don't do what they say
01:57 PM CaptHindsight[m]: sorry
01:59 PM CaptHindsight[m]: I don't expect a user space util to actually do much
02:16 PM unterhausen: it fiddles with the smi register
02:17 PM unterhausen: I am having an smi problem, according to the latency plot
02:18 PM unterhausen: 300000 ns jitter
02:18 PM CaptHindsight[m]: AMD or Intel?
02:18 PM unterhausen: intel
02:19 PM CaptHindsight[m]: good enough for Ethernet and Mesa
02:19 PM unterhausen: yes, but it feels dirty somehow
02:20 PM CaptHindsight[m]: choose your battles
02:20 PM unterhausen: that's with the fan control on, that didn't seem to change anything
02:20 PM unterhausen: apparently many have a dedicated microcontroller
02:20 PM CaptHindsight[m]: how often does Amazon deliver 1-2 days late?
02:21 PM unterhausen: pretty often 1 day
02:21 PM CaptHindsight[m]: for me it's now 100%
02:21 PM unterhausen: they usually tell me when I place the order though
02:21 PM unterhausen: only happened a couple of times that it was actually late without that warning
02:22 PM unterhausen: now they are telling me I can have a lot of stuff tomorrow
02:22 PM CaptHindsight[m]: for me it's always on the day it is to arrive, oops sorry we late
02:23 PM unterhausen: that has been rare for me, although they don't ship until the last moment most orders
02:23 PM CaptHindsight[m]: mine started in an undisclosed location
02:23 PM CaptHindsight[m]: shipped same day
02:23 PM CaptHindsight[m]: just stalled out for another day 30 miles from me
02:24 PM unterhausen: what's weird is some of my packages are in pittsburgh the day of delivery and I think there is no way, and then it shows up
02:26 PM CaptHindsight[m]: unless i pay from early next am, if i don't see the parcel within a few miles by 3-4am, it's not going to be here that day
02:29 PM unterhausen: are yours delivered by a private company?
02:29 PM unterhausen: our USPS is pretty good at this, mostly
02:30 PM CaptHindsight[m]: we have the Amazon vans
02:30 PM unterhausen: I guess I should start latency-test with bigger base thread since I don't really care about that thread anyway
02:30 PM CaptHindsight[m]: I have it delivered to a drop box
02:30 PM CaptHindsight[m]: maybe they have them as low priority
02:31 PM CaptHindsight[m]: though i used to get other peoples shipments
02:31 PM CaptHindsight[m]: until i reported the issue
02:31 PM CaptHindsight[m]: that was to my door
02:45 PM JT-Shop: https://semo.craigslist.org/pts/d/williamsville-clarke-parts-washer/7373918474.html
02:45 PM JT-Shop: not one bite...
02:51 PM CaptHindsight[m]: JT-Shop: I got a much larger on on CL years ago. The seller did not want to drain the 30+gal tank before loading it into my truck.
02:51 PM CaptHindsight[m]: he didn't mind if it sloshed around for 40 miles in my truck :)
02:53 PM Rab: Paid for the privilege of hauling off their hazardous waste, who wouldn't want that sweet deal?
02:59 PM JT-Shop: you should have seen what I cleaned out of it when I brought it home from the other shop a few years ago
03:00 PM JT-Shop: I think I've used it twice since then...
03:00 PM roycroft: i have one of those
03:00 PM roycroft: i haven't used it in a decade or more
03:00 PM roycroft: so i used my breathecool fresh air respirator for the first time today at lunch, other than trying it on
03:01 PM CaptHindsight[m]: comfy?
03:01 PM roycroft: i was doing some turning, and when i was done for now i was covered from head to toe in wood shavings/sawdust
03:01 PM roycroft: i did not even notice i had the respirator on
03:01 PM roycroft: the face mask was more bothersome than the respirator
03:01 PM roycroft: i'm very happy with it so far
03:02 PM roycroft: not only did i not feel it
03:02 PM roycroft: i was breathing perefectly normally - better than with any respirator i've ever used before
03:02 PM roycroft: so i'm giving it a thumbs up
03:02 PM roycroft: in fact, two thumbs up
03:03 PM roycroft: i was turning some maple, which is not very toxic, but still, any wood dust is a health hazard
03:03 PM CaptHindsight[m]: hazzy: how is the move out of the show going?
03:08 PM roycroft: i'm thinking about a way to keep the fresh air pump set up semi-permanently, with a quick-connect for the fresh air supply hose inside myshop
03:09 PM roycroft: the fresh air outlet on the pump is a 3/4" hose bibb, so that side is easy
03:09 PM roycroft: the other end of the hose is a quick-disconnect that looks like the kind used on pressure washers, but larger
03:09 PM roycroft: that may be a little more difficult to source
03:10 PM roycroft: actually, no, it doesn't matter - i can just use hose bibbs on both ends of the extension
03:13 PM CaptHindsight[m]: 1.5 - 2.0 inch vacuum cleaner hose or sump hose is cheap
03:13 PM CaptHindsight[m]: $10 for 25ft
03:13 PM roycroft: yes, the hose would be cheap
03:13 PM roycroft: it needs to be really clean though
03:13 PM roycroft: i'll be breathing through it
03:14 PM CaptHindsight[m]: buy new vs used
03:14 PM roycroft: yes, of course
03:14 PM roycroft: and no rubber
03:14 PM roycroft: or anything that smells like china
03:15 PM CaptHindsight[m]: https://www.homedepot.com/p/Prinsco-1-1-2-in-x-24-ft-Sump-Pump-Discharge-Hose-SK2200-00000/300672039
03:52 PM Roguish: roycroft, check it out. http://www.snuba.com/
03:54 PM Roguish: that has a tank, but there are others that have air pumps.........
03:54 PM roycroft: i have a fresh air respirator
03:54 PM roycroft: i don't need that
03:55 PM Roguish: ok.
03:55 PM roycroft: i just need to sort how to make an extension fresh air outlet hose, and potentially a fresh air inlet hose
03:55 PM roycroft: the latter is more of an issue, as the fresh air comes in through an air filter
03:55 PM roycroft: and the air filter housing is part of the pump
03:55 PM roycroft: i suppose i could suck in fresh air and feed it to the filter
03:56 PM roycroft: i'd prefer to mount the filter remotely and suck filtered air from it to the ump
03:56 PM roycroft: https://www.turbineproducts.com/breathecool-ii-supplied-air-respirator-system-w-half-face-mask/
03:57 PM Roguish: the goesinsa should probably have a very light positive pressure.
03:57 PM roycroft: that is what i just got, but i upgraded the hose to 50
03:57 PM roycroft: '
03:57 PM roycroft: i can adjust the supplied air pressure
03:57 PM roycroft: i have it set to about 5psi right now, which allows me to breathe normally
03:58 PM roycroft: an does maintain a slight positive pressure
03:58 PM Roguish: nice,
03:58 PM roycroft: as i was saying earlier, it's so comfortable i don't even notice i'm wearing it
03:58 PM roycroft: i was very pleasantly surprised at how comfortable it is
04:33 PM roguish[m]: roycroft: hey, just made an appointment to get a booster vaccine.....
04:33 PM roguish[m]: next tuesday
04:34 PM XXCoder: covid booster shot?
04:34 PM roguish[m]: yeah baby.
04:34 PM XXCoder: interesting. it wasnt clear if needed or not
04:35 PM roguish[m]: i'm getting any and all available........
04:35 PM roguish[m]: over 65 w/ asthma........
04:37 PM roycroft: i'm not due for a booster until december
04:38 PM roycroft: but it will be time for the seasonal flu shot soon
04:38 PM roycroft: the timing of that is always a bit iffy
04:38 PM roycroft: too early and i lose some immunity before the end of flu season
04:38 PM roycroft: too late and i might get the flu before i get the jab
04:38 PM roycroft: the end of september is my happy compromise
04:45 PM JT-Shop: I need to call the health dept to see if we have them yet
05:01 PM roycroft: https://www.amazon.com/Electric-Sliding-SFU1605-Ballscrew-Engraving/dp/B082V3624V
05:01 PM roycroft: so there is that
05:01 PM roycroft: i would save an awful lot of time if i just purchased a ready to install z axis
05:01 PM roycroft: does it look reasonable for a router?
05:01 PM XXCoder: dunno, but looks reasonably rigid i guess
05:02 PM roycroft: i doubht i could build one for that price
05:02 PM roycroft: so i'd probably save money as well as time
05:02 PM XXCoder: reviews is pretty polarized
05:02 PM roycroft: yes
05:02 PM XXCoder: shit bearings. not surpised
05:02 PM roycroft: but the listing says "free returns"
05:03 PM roycroft: so i could buy it and check it out
05:03 PM XXCoder: i usually prefer reviews 2-4 stars. tend to be more reasonable
05:03 PM roycroft: i'll again wait until 1 october, when my 5% cash rewards on amazon purchases kicks in
05:03 PM XXCoder: one has minor play complant bit it was fixed
05:03 PM XXCoder: so i guess its fine
05:03 PM roycroft: but i think i'll add it to my cnc wish list for now
05:04 PM roycroft: it's rated at 15kg vertical load, and my spindle weighs just under 5kg
05:04 PM roycroft: 200mm travel is way more than enough for a 2d router
05:05 PM roycroft: 100mm would be ok
05:08 PM roycroft: if i bought that, my gantry support plates would be the only parts that would take a bunch of machining
05:08 PM roycroft: the rest would be mostly bolt-together
05:23 PM JT-Shop: that would be an easy Z axis for sure
05:25 PM JT-Shop: looks like one guy got some bad bearings...
05:32 PM roguish[m]: JT-Shop: https://www.nytimes.com/live/2021/09/17/world/covid-delta-variant-vaccine
05:38 PM JT-Shop: I qualify then
05:39 PM _unreal_: fdarling, still on the IRC band waggon :)
05:39 PM fdarling: unreal: yeah, I am still on IRC, now that I switched to Libera.Chat ;-)
05:40 PM fdarling: unreal: hexchat still doesn't have the best options for notifications, so I mute it sometimes, that's the problem...
05:40 PM XXCoder: i just use window flash. good enough
05:40 PM fdarling: unreal: I am about to leave the house though, so I'll catch you guys later
05:40 PM _unreal_: later
05:41 PM _unreal_: I am in total love with this phone adapter
05:42 PM _unreal_: gives vga, hdmi, 2 usb, audio, sd cards, and ethernet
05:42 PM _unreal_: plus charging
05:42 PM _unreal_: turns my phone into a computer
06:44 PM roycroft: well, i need to go put some things away that have been sitting outside for days to months
06:44 PM roycroft: because it's going to rain tonight, and really really rain
06:45 PM roycroft: i'm hoping we don't get any flash floods
08:04 PM roycroft: i just put in an offer on some linear rails
08:04 PM roycroft: my 5% cash back this quarter includes paypal, so now is the time to get things on ebay
08:05 PM roycroft: i really want to get my router design finished before i buy a bunch of components, but these linear rails i know will work, and will be long enough, but not too long
08:06 PM roycroft: and now that i've made an offer on some parts i might feel inspired to put more energy into the design
09:06 PM _unreal_: an offer?
09:14 PM roycroft: yes
09:15 PM roycroft: some ebay listings accept offers
09:17 PM _unreal_: hum..
09:17 PM _unreal_: well I'm going down to the keys tomorrow
09:17 PM _unreal_: thinking keylargo
09:17 PM roycroft: time for a beachfront mojito?
09:17 PM _unreal_: maybe3
09:17 PM _unreal_: though already living in the tropics makes it easy
09:18 PM roycroft: this weekend is ballot preparation for the country fair election
09:18 PM roycroft: but that's ok
09:18 PM roycroft: it is going to rain all weekend
09:18 PM _unreal_: nothing like pearl blue waters
09:18 PM _unreal_: and getting into bath temp salt water