#linuxcnc Logs

Jun 02 2020

02:54 AM Loetmichel: mornin'
02:59 AM Loetmichel: Oh man. Some of my coworkers are a bit "yesterday"... Just shrinked some tube with a torch, coworker took the cleaning alcohol away from the flame. $me"Coward. It wouldnt explode like the rocket two days ago..." Coworker: ??? $me: "Na, the rocket test of space-x two das ago?" Coworker: "What is spacex?" $me: [Speechless]
03:45 AM Deejay: moin
04:47 AM Loetmichel: hmm, i like that laser cutter... makes nice writings... stinks like hell with PLA though... -> http://www.cyrom.org/palbum/main.php?g2_itemId=17831&g2_imageViewsIndex=1 ... and maybe i shouldnt have rushed the enders so much... print quality isnt that great. :-(
04:52 AM JT-Cave: morning
04:53 AM XXCoder: hey jt
04:58 AM JT-Cave: my sister got a covid 19 screen before surgery and she said it's really uncomfortable when they swab up your nose to your brain
04:58 AM XXCoder: hopefully not literally
04:59 AM JT-Cave: I guess it felt that far to her
05:00 AM JT-Cave: all 12 of the chicks roosted on the perch for the first time last night
05:46 AM Loetmichel: *hmpf* just tried to cut 50% silver dust infused silicone gaskets on the laser cutter. Nice light show when the silver burns off... but even 3 passes at slowest speed and 40W doesent cut thru the 2mm material. :-(
05:47 AM Loetmichel: ... time to get the CNC mill running... its no fun either because of the silicone not sticking well to the mill bed but the 0.8mm two flute cuts it at least.
05:47 AM XXCoder: can always add clamps
05:47 AM Loetmichel: XXCoder: silicone rubber
05:47 AM XXCoder: clamp makes world NOT go round
05:47 AM Loetmichel: you dont want to add clamps
05:48 AM XXCoder: lol
05:48 AM Loetmichel: i did it on the mill a while ago
05:48 AM Loetmichel: glued it down on the whole surface with double sided tape. worked. but its a hassle.
05:49 AM XXCoder: fun
05:50 AM Loetmichel: http://www.cyrom.org/palbum/main.php?g2_itemId=14049&g2_imageViewsIndex=1 <- that stuff is nasty. And extreme expensive. that 100 by 100 mm sheet there is $300
05:50 AM XXCoder: gee
06:01 AM rmu|w: Loetmichel: dragknife?
06:07 AM SpeedEvil: Tha'ts what I was about to suggest
06:07 AM SpeedEvil: Though cryogenic machining is neat too
06:08 AM XXCoder: how do you KEEP it cold?
06:08 AM XXCoder: liquid hyrogen coolant?
06:10 AM XXCoder: or just liquidifed air. having air liquidifer would be useful if you needed that lol
06:10 AM XXCoder: (really powerful stirling engine)
06:14 AM Tom_L: morning
06:17 AM JT-Cave: morning
06:22 AM _abc_: Hi. Is there anyone here who has or saw a setup for plasma / gas welding, cnc'd, using an oxygen concentrator as gas source for O2?
06:23 AM XXCoder: hey. bit funny timing
06:23 AM XXCoder: i was just talking about stirling air liquidifer
06:23 AM XXCoder: essentally you would need air distillery after that
06:23 AM XXCoder: on cnc machine dunno maybe someone knows
06:24 AM _abc_: Yes, no Stirling. 6-10lpm "medical" O2 concentrator.
06:25 AM XXCoder: ya was dunny though
06:25 AM _abc_: I think it would work for small nozzles. Would it?
06:25 AM XXCoder: air stuff isnt a common topic here
06:25 AM _abc_: Plasma torches are.
06:25 AM XXCoder: ya
06:25 AM XXCoder: just relating your question to my earlier comment heh
06:25 AM XXCoder: anyway im sure someone does know
06:42 AM JT-Cave: gotta split a bunch of firewood this morning while it's cool outside, got some steel coming today and I need the trailer to meet the truck driver
06:42 AM JT-Cave: gotta get the trailer balanced out at least before the Steel Yard truck gets here
06:49 AM _abc_: I see a lot of plasma cutters run on compressed air not O2
06:49 AM XXCoder: would be interesting if there was much thing as air filter
06:49 AM XXCoder: only lets oxygen for example
06:49 AM _abc_: ?
06:49 AM _abc_: Sure, O2 concentrators use that
06:50 AM _abc_: medical and welding. Search "oxygen concentrator"
06:50 AM XXCoder: it does indeed literally filter nitrogen out and such
06:50 AM XXCoder: then compress
06:51 AM XXCoder: very interesting. thanks
06:51 AM _abc_: yes, most concentrators do not compress, only welding ones do normally
06:51 AM _abc_: medical O2 from concentrator is low pressure ready to breathe
06:51 AM XXCoder: was reading about cpap they apparently does.
06:51 AM _abc_: CPAP runs on something like 0.1 bar maximum.
06:52 AM _abc_: https://www.practicalmachinist.com/vb/fabrication-cnc-laser-waterjet-plasma-welding-and-fab/there-such-thing-small-oxygen-generator-183057/
06:56 AM _abc_: XXCoder: there are systems where if you already have shop air you can use that to run the O2 concentrator.
06:57 AM XXCoder: cool :)
06:57 AM _abc_: It does need a lot of shop air but it will run on that.
06:57 AM XXCoder: heh some does use a lot of air
06:58 AM XXCoder: verani vacuum maker for one
06:58 AM _abc_: I see medical units in my country for $700 or so.
06:58 AM XXCoder: bit pricy, but then usa you add 2 zeros
06:58 AM _abc_: That's small portable and 5-6 lpm (15 SCFH)
06:58 AM _abc_: XXCoder: I am not in USA.
06:58 AM _abc_: Europe
06:59 AM _abc_: Add 3 zeros
06:59 AM XXCoder: i know. I am in usa :P
06:59 AM _abc_: Anyway, it's not bad at all considering it can replace 10 gas cylinder fills and transports and by then it will break even
06:59 AM _abc_: I think you can find second hand O2 concentrators on craigslist easily.
07:00 AM _abc_: Some people are not aware how dangerous the O2 output is though.
07:00 AM XXCoder: guess so, has no use for such though :)
07:00 AM _abc_: Running them in the shop among oily tubing and solvent soaked rags.
07:00 AM XXCoder: unless its in form of cpap maybe. i really need to do that sleep stufy
07:00 AM XXCoder: stuy
07:00 AM _abc_: O2 will turn those things into rocket engines.
07:00 AM XXCoder: study
07:00 AM XXCoder: fun
07:01 AM _abc_: Not at all. By the way your slightly greasy overalls qualify too. And your baseball cap, beard, and HAIR>
07:01 AM XXCoder: many in my family uses cpap
07:01 AM XXCoder: i think i do but i need test first
07:02 AM _abc_: Oh. Then maybe you need it. Sleeping on a side/not on back is a great immediate remedy if you suspect sleep apnea or snoring is serious.
07:02 AM XXCoder: unfortunately i already do
07:02 AM XXCoder: (on side/front)
07:06 AM _abc_: Unfortunately I had an acquaintance who passed on and she wanted O2 by the end, she had heart trouble, and at the time these things were not available and not affordable, could not help her. 7-8 years ago I think.
07:06 AM _abc_: They got much cheaper in between.
07:06 AM XXCoder: sucks :(
07:07 AM _abc_: Yeah she was not family, but I could not do anything for her at the time.
07:08 AM XXCoder: later gonna sleep :) hope its better than yeserday one was
07:08 AM _abc_: So a 20kg weight concentrator I am looking at produces 85% O2 at 4-6LPM for 30,000 hours or 3 years.
07:09 AM _abc_: That's at least 120000L O2 in 3 years, should replace QUITE a few small O2 bottles priced like inkjet ink.
07:10 AM _abc_: At $2000 or so for the unit works out to 1/120$/L O2 which is not bad at all (but add in electrical power which rounds it up towards 5-10 cents/Liter)
09:21 AM veek_ is now known as veek
10:09 AM roycroft: so some drawings i did in solidworks last night and exported to stl seem to load fine in cura - the size and material use estimates are sane
10:10 AM roycroft: and since octoprint has cura built in, cura may be the way for me to go for slicing software - if i can avoid a step (the slicing before pushing to the rpi) that would be nice
10:10 AM roycroft: i guess the next test is the solidworks plugin for octoprint (and later the freecad plugin)
10:10 AM roycroft: that would eliminate yet another step
10:11 AM skunkworks: I have drawn things in fusion and it seemed to print fine.
10:11 AM roycroft: i hope that cura plugins work with the cura that is part of octoprint
10:11 AM roycroft: i need to buy a new rpi anyway before i can use octoprint
10:12 AM roycroft: i took inventory last night and all my rpis are version 1 and version 2
10:12 AM roycroft: and octopi wants at least a rpi 3
10:12 AM roycroft: i haven't bought any rpis since 2015 or so
10:13 AM roycroft: i'm glad i've learned patience in my old age
10:13 AM roycroft: i fed one of my really simple part drawings to slic3r last night as part of my testing
10:13 AM roycroft: it said it would need 69g of material, which sounds about right
10:13 AM roycroft: and it said that my printer would take a bit over 4-1/2 hours to print the part
10:14 AM roycroft: i want to print a dozen variants of that part
10:14 AM roycroft: but i knew that 3d printing would be slow
10:26 AM drdoc: roycroft: I've been quite impressed with the current PrusaSlicer
10:39 AM drdoc: I also quit running Octoprint on RPis
10:39 AM roycroft: why?
10:40 AM roycroft: and is prusaslicer the same as slic3r?
10:40 AM drdoc: yes-ish
10:40 AM drdoc: it's a little more user-friendly, with much better material presets
10:40 AM roycroft: i am getting my first 3d printer next week
10:41 AM roycroft: i have zero experience with them
10:41 AM roycroft: and i'm trying to learn as much as possible as quickly as possible
10:41 AM drdoc: right now Octoprint is running on a Z8350 netbook I got super cheap
10:41 AM roycroft: i am not intersted in tinkering with a lot of stuff
10:42 AM roycroft: i want to start making useful parts as soon as possible
10:42 AM drdoc: before it was running on an n270 eeePC netbook I got super cheap
10:42 AM roycroft: that's not to say i am unwilling to do testing/tweaking
10:42 AM drdoc: Octopi is probably the way to go then
10:42 AM roycroft: rather to make clear that my goal is to make useful parts, not to play with a new toy
10:42 AM drdoc: I understand
10:42 AM roycroft: i actually have an old netbook laying around
10:43 AM roycroft: and i don't have a rpi that is rated for using octopi
10:43 AM roycroft: the netbook is about 10 years old and has windows 7 home edition on it
10:43 AM drdoc: find the model and shoot me a PM
10:43 AM roycroft: i bought it because ironically at the time the vmware esxi client software was windows-based (pre html3), and would not run in a virtual machine
10:44 AM drdoc: I was running octopi on a 3B, and running a webcam and a local console was more than it could carry
10:44 AM drdoc: losing steps
10:44 AM drdoc: I remember that
10:44 AM roycroft: i haven't used it in years, but it's sitting here on my desk
10:44 AM * drdoc had a VMware cert # that was 4 digits
10:45 AM drdoc: what model is the netbook?
10:45 AM roycroft: i should turn it on to see if it still works
10:46 AM roycroft: it is coming up in safe mode, but that's probably because the battery drained a long time ago
10:47 AM roycroft: so yeah, it works fine
10:47 AM roycroft: and i don't mind scrubbing it
10:47 AM roycroft: windows 7 home edition is pretty useless
10:47 AM roycroft: i'm sure that debian would be a lot more useful on it
10:57 AM Loetmichel: XXCoder:and it also can regenerate
10:57 AM Loetmichel: the the oxygen concentrators i mean
10:58 AM Loetmichel: they usually have two nitrogen catcher cans, one is working while the other is regenerating
10:58 AM Loetmichel: you can even hear them switch (valves) every few minutes in the medical concentrators
11:07 AM unterhaus_: I wish I bought an oxygen concentrater before the 'rona made them scarce.
11:07 AM * SpeedEvil looks at his oxygen concentrator.
11:08 AM unterhaus_: I want to switch from acetylene to propane, but propane takes a lot of oxygen and I only have a relatively small tank
11:08 AM unterhaus_: albeit the biggest tank I could buy
11:09 AM SpeedEvil: unterhaus_: I had an idea.
11:09 AM SpeedEvil: unterhaus_: Though I have not yet followed up on it.
11:10 AM SpeedEvil: Take a hot air paintstripper, and use it for your air source. Free 500C extra.
11:19 AM unterhaus: SpeedEvil, don't think I want to hold a torch that is 500C
11:19 AM SpeedEvil: unterhaus_: yes, it would need to have outer cooling air.
11:26 AM unterhaus: I use either a J28 or a Smith A1WA, so that much volume would be problematic. "light duty" torches.
11:28 AM SpeedEvil: yeah - I don't mean literally a hot air paintstripper
11:29 AM roycroft: i have a very low volume heat gun that i use primarily for work with heat shrink tubing
11:29 AM SpeedEvil: just that it's pretty easy to get 500+C air in a reliable manner.
11:29 AM SpeedEvil: Without exotic materials
11:31 AM roycroft: iy id s master-mite model 10008
11:31 AM roycroft: i'm not sure it gets that hot
11:31 AM roycroft: but it gets pretty hot
11:31 AM roycroft: 343c
11:32 AM roycroft: https://www.amazon.com/dp/B07BN5THC5
11:32 AM roycroft: amazing
11:32 AM roycroft: i've had mine for 30+ years, and they still make the same model
11:32 AM roycroft: it looks exactly the same as mine
11:32 AM roycroft: i guess if it isn't a broken design, don't fix it
11:33 AM roycroft: i love it because of the low volume flow, and because of the stand
11:45 AM Centurion-Dan2 is now known as Centurion_Dan
12:07 PM jymmmm: https://www.nytimes.com/2020/06/01/world/africa/ebola-outbreak-congo.html
12:08 PM SpeedEvil: At least there is now a decent vaccine for that.
12:08 PM roycroft: we'll get one for covid-19
12:08 PM roycroft: it's just going to take a while
12:08 PM SpeedEvil: Probably, yes.
12:09 PM roycroft: hopefully it won't mutate too much while the vaccine is being developed
12:09 PM SpeedEvil: We've been searching for a vaccine for many viruses for quite a while with no success and apparent vaccines in some cases not working out.
12:10 PM roycroft: sure, but we've had a lot of success with corona virus vaccines
12:10 PM SpeedEvil: No, we haven't.
12:10 PM SpeedEvil: We've had vaccine candidates that have proven safe, and one that has been tested in several monkeys.
12:10 PM roycroft: my impression is that we have, but that that class of virus mutates a lot
12:11 PM roycroft: which is why the annual flu vaccine suite is kind of a crapshoot
12:11 PM SpeedEvil: All the funding for SARS1 went away soon after (and the fact it could only be worked on in a very few labs diddn't help)
12:11 PM roycroft: if we guess right, the trivalent or tetravalent vaccine is effective against the most common variants that are around that year
12:11 PM roycroft: there's the real problem
12:12 PM roycroft: we don't fund the research until it's too late
12:12 PM SpeedEvil: And declaring SARS1 as a 'select agent' almost made research on it impossible.
12:12 PM jymmmm: But, ppl are getting REinfected with corona
12:12 PM SpeedEvil: jymmmm: The papers claiming that have been retracted, at least many of them.
12:12 PM SpeedEvil: jymmmm: More a case of 'middle test was insensitive'
12:12 PM jymmmm: SpeedEvil: AH
12:12 PM jymmmm: gotta love false positive testing
12:13 PM SpeedEvil: Combined with a subset of people who seem to continue making virus a long time (weeks) out.
12:16 PM jymmmm: Scroll down to "New Cases per day" up to 3K https://www.latimes.com/projects/california-coronavirus-cases-tracking-outbreak/ (updated as least daily)
12:16 PM roycroft: we're going to see spikes in every city that has had protests
12:16 PM roycroft: and in every state where churches are reopening
12:17 PM jymmmm: Pfff I went shopping and like only 4 ppl had masks on, and this was in many stores
12:18 PM SpeedEvil: In the UK, things are better. We have a significantly higher number of deaths per day than the USA per capita. #winning.
12:18 PM SpeedEvil: This is why we're opening up.
12:22 PM roycroft: that's just stupid, jymmmm
12:23 PM roycroft: we should require masks in any enclosed public space
12:23 PM roycroft: and that's not just for this particular virus
12:23 PM roycroft: it's a good idea during flu season as well
12:24 PM roycroft: but males in this country think that wearing a mask makes their tiny dicks look even smaller
12:24 PM roycroft: so i don't hold out a lot of hope that people will behave responsibly
12:25 PM JT-Cave: you should not generalize based on local observations, it's not that way in the whole USA
12:26 PM roycroft: it actually us, but not for the entire population
12:26 PM roycroft: there are pockets of mouth breathers everywhere
12:27 PM roycroft: there is a majority of responsible people everywhere, as well
12:28 PM roycroft: we're straying fairly far from the topic now, though, and many here do not appreciate that
12:30 PM roycroft: i'll just end by saying that i live in what is considered a pretty "liberal" or "progressive" city, where the majority of folks are considerate of others and are more science and fact driven than politically driven, and i personally have been harassed by people for wearing a mask in a store
12:30 PM roycroft: which i did not expect to happen here
12:33 PM jymmmm: SpeedEvil: yup, hell I carry a box of gloves in my car
12:34 PM roycroft: i keep masks and sanitizer in my car
12:34 PM roycroft: i don't see gloves as being very useful for me
12:34 PM roycroft: at some of the stores, the cashiers wear gloves, and sanitize them between customers
12:34 PM roycroft: that makes sense
12:34 PM jymmmm: cross contamination of people touching things (especially the keypad at the register where 200 ppl were the last hour) is the worse, especially for colds/flus
12:35 PM roycroft: and at those same stores, they sanitize the checkout counter between every customer
12:35 PM roycroft: they wipe down the cc processing machine and the counter
12:35 PM jymmmm: like hell
12:35 PM jymmmm: that doens't accutn for things being touched in the store itself
12:35 PM roycroft: i'm talking about stores i personaly go to
12:35 PM roycroft: yes, that's why i carry sanitizer with me
12:36 PM jymmmm: That doesn't help AFTER you've been infected
12:36 PM roycroft: my routine is that when i leave the store i use sanitizer on my hands while i'm approaching my car
12:36 PM roycroft: getting it on my hands does not infect me
12:36 PM roycroft: touching my face/eyes/etc. with the virus on ny hands is what would infect me
12:37 PM roycroft: if i have a cut on my hands i either wear a band-aid or gloves when in stores
12:37 PM jymmmm: I saw a snot nose kid rub it in his hair, then went on to touch EVERY piece of fruit in the produce section
12:37 PM roycroft: anyway, i sanitize before i touch my car keys
12:37 PM jymmmm: this doens't have to be corona related to cross contaminate.
12:37 PM roycroft: so that the keys and the interior of the car are not at risk
12:37 PM roycroft: correct, the sanitation procedures are effective against other pathogens as well as the covid-19 virus
12:38 PM roycroft: the thing is
12:38 PM roycroft: there are literally trillions of pathogens all around us all of the time
12:38 PM jymmmm: and alcohol does NOT kill everything
12:38 PM roycroft: it's not worth even thinking about trying to kill all of them or otherwise avoid coming in contact with all of them
12:39 PM jymmmm: EXACTYL, a barrier (gloves) prevents combing into contact
12:39 PM * JT-Shop wishes the Steel Yard would hurry up and deliver my steel so I can put this stupid phone on my desk where it belongs
12:39 PM roycroft: it's likely that by now, almost every person on the planet has been exposed to the covid-19 virus
12:39 PM jymmmm: Steel? how heavy is this phone?
12:39 PM roycroft: but most have not been exposed to enough to become infected
12:40 PM roycroft: if you want to minimise risk, spending half as much time inside a store as you currently do is more effective than wearing gloves in the store
12:41 PM JT-Shop: the driver calls me and I meet him up by JP's Bargain Barn where he has room to turn around
12:41 PM roycroft: make a shopping list and walk quickly and determinedly down the aisles
12:41 PM JT-Shop: I go when the parking lot is empty, may not be possible elsewhere
12:42 PM roycroft: think of the risk of getting this virus just like the risk of radiation exposure
12:42 PM roycroft: it's a function of both the amount of the pathogen in the environment and the amount of time you spend in the environment
12:42 PM jymmmm: JT-Shop: How much steel are you getting? and how are you suppose to tranport from some parking lot to the shop?
12:46 PM JT-Shop: the amount doesn't matter we transfer it from the 18 wheeler to my 16' trailer and I drive home
12:51 PM JT-Shop: point is I dislike being attached to a cell phone
12:52 PM jymmmm: JT-Shop: OH, I thought you were waiting for the steel to make a shelf/bracket to put your phone on, HAHAHAHA
12:53 PM JT-Shop: I have enough steel to do that...
12:54 PM roycroft: i hate cell phones
12:55 PM JT-Shop: me as well
12:57 PM roycroft: so i am changing my primary email address - the one i've been using since 1992
12:57 PM roycroft: because i've gotten some really substantial offers for that domain, and i want to be able to sell it
12:58 PM roycroft: i've been contacting all my correspondents to update
12:58 PM roycroft: and that includes vendors/financial institutions
12:58 PM roycroft: so far, two credit card companies and apple have been very difficult
12:58 PM roycroft: they *require* me to receive a text message on my phone in order to change my email address
12:58 PM roycroft: and claim there is no other mechanism
12:59 PM Tom_L: dog popped his shoulder out chasing a damn squirrel today
12:59 PM roycroft: the problem is that i have sms blocked on my phne by the carrier
12:59 PM roycroft: and if i were inclined to enable it it would take up to twoo full billing cycles to do so
12:59 PM roycroft: i told them they can send me a letter, or i could send them whatever documentation they want
01:00 PM roycroft: but they insist that a text message is the only mechanism
01:00 PM roycroft: the credit card companies don't even have my cell phone number
01:00 PM roycroft: so i don't know how they would text me - the phone number tey have is my land line
01:00 PM roycroft: apple are trying to figure something out
01:00 PM Tom_L: landline txt is called snailmail
01:01 PM JT-Shop: lol
01:01 PM roycroft: the cc companies, well i'm inclined to just cancel the credit cards
01:01 PM roycroft: that would take care of the problem
01:01 PM cradek: I've run into that too. It's like a phone number that doesn't do sms is something they've never heard of before.
01:01 PM Tom_L: the vet chewed him out for not knowing better being an old man n all. popped it back in and sent us on our way NC
01:02 PM Tom_L: he's a favorite there
01:02 PM jymmmm: cradek: heh
01:02 PM cradek: I think it was ebay that was my problem. they had my business toll free number
01:02 PM roycroft: intrasigence is almost as irritating as text messaging :)
01:03 PM cradek: "can I please talk to someone over 40?"
01:03 PM jymmmm: LMAO
01:03 PM roycroft: cradek: my ebay mastercard is one of the ones with which i'm having the issue
01:03 PM roycroft: but it's not ebay i'm dealing with there - it's synchrony bank
01:03 PM roycroft: who are the WORST cc company in the universe
01:04 PM roycroft: i have other synchrony-issued and managed cards, like lowe's and best buy
01:04 PM cradek: I'm a dinosaur. my bank still has buildings in my city I can walk into and sit at someone's desk and ask for help.
01:04 PM roycroft: and i have been able to update my account settings for those
01:04 PM roycroft: butnot for the ebay mastercard
01:04 PM cradek: my insurance agent too. it's SO effective.
01:05 PM roycroft: our banks are all closed still, except for the driveup windows and the lobbies by appointment
01:05 PM cradek: oh yeah, present situation excepted
01:07 PM JT-Shop: most banks here are still by appointment only but we only have 36 cases in the county
01:08 PM cradek: my county has .5% of the population with confirmed cases, so I assume 2-5% are actually carrying it and contagious
01:09 PM cradek: oh and also, we're opening our bars now, and we've had protests with crowds of thousands of people the last few days.
01:09 PM cradek: it's ... not good.
01:12 PM jymmmm: Does that look like a thin gauge steel holding the black nut? https://images-na.ssl-images-amazon.com/images/I/61N7S1NFqBL._SL1600_.jpg
01:23 PM JT-Shop: damn that's not good, as long as the stores don't run out of 30 packs we should be ok
01:33 PM jymmmm: JT-Shop: Since you have the trailer hooked up, might as well get a few kegs too
01:34 PM JT-Shop: I only have a beer on Friday and Saturday
01:35 PM jymmmm: One keg friday, one keg saturday
01:36 PM JT-Shop: a case of Weihenstephaner lasts me several months
01:37 PM jymmmm: I'm just teasing
01:38 PM jymmmm: But, is a keg technically considered an OPEN container?
01:39 PM jymmmm: I remembr trikes used to have "keg looking" fuel tanks. But, what if you actually strapped a full beer keg instead? lol
02:25 PM CaptHindsight: does this mean I have a Bridgeport? https://i.imged.com/bridgeport-shaper-head-parts-used-am17760-54669623.jpg
02:37 PM jymmmm: CaptHindsight: You have Half-a-port
02:41 PM CaptHindsight: this is similar to how the virus test work, if 80% of the people that have the parts in the pic ^^ have a complete bridgeport, then you are likely to have a bridgeport
02:42 PM CaptHindsight: if you have those parts
02:43 PM CaptHindsight: we just aren't building the tools yet for biologists that are as precise as what we have in electronics or machines
02:44 PM CaptHindsight: imagine machining precision parts using statistics based on limited measurements of the parts
03:00 PM syyl: in mass production thats not uncommon :(
04:18 PM Deejay: gn8
07:21 PM -!- #linuxcnc mode set to +v by ChanServ
09:56 PM skunkworks: backup generators at work didn't come on when the power went out (storm)
09:56 PM skunkworks: so.. Wonder how many servers actually boot back up.
10:03 PM Tom_L: should be a fun day for you if they didn't
10:05 PM skunkworks: Think positive I guess..
10:05 PM Tom_L: wonder why the gens didn't start?
10:06 PM skunkworks: I called work to see what if thing were working - (our internet connection was down for sure as I couldn't vpn in)
10:06 PM skunkworks: the girl that answered laughed when I asked how it was going.
10:06 PM skunkworks: We have no power...
10:07 PM skunkworks: Tom_L: well - we have had problems off and on. I guess they are not fixed. There was a big storm that went through - so it could have been that something just failed.
10:08 PM skunkworks: (well - only one area had power - which happened to be where the switchboard is)
10:09 PM skunkworks: we have 2 generators for the whole facility.. maybe one worked.
10:10 PM Tom_L: not sure i recall where you're at or if i ever knew...
10:11 PM skunkworks: western WI
10:11 PM skunkworks: near lacrosse
10:11 PM Tom_L: nice sunny hot day here
10:11 PM Tom_L: 97 by friday
10:11 PM skunkworks: same here. 91
10:14 PM roycroft: my printer shipped today - it will arrive before expected
10:14 PM roycroft: now i need to scrable to get that netbook ready to control it
10:18 PM Tom_L: what'd you end up getting?
10:18 PM Tom_L: the vo'tech here got a bunch of dremel 45's last year.. i'm sure they paid too much for em too
10:19 PM roycroft: i got an ender 5
10:19 PM Tom_L: maybe one day i'll get one
10:20 PM roycroft: i hope to be printing some router jigs next week
10:21 PM Tom_L: i'd bet over 50% of the printers out there only print other printers
10:21 PM roycroft: i'm not going to print bunnies or scifi characters or anything like that
10:23 PM Tom_L: i found it interesting they printed a replacement timing belt for one of their machines
10:24 PM roycroft: the original diy printer - the reprap - was all about buying a really low-end printer and using it to build a better prnter
10:26 PM roycroft: i got the one i got because it's cheap, has a decent print volume, and is easily upgradable
10:26 PM roycroft: i don't know what upgrades i might want/need, so it made sense to me to start on the low end until i figure out how tey work better
10:27 PM roycroft: then i can upgrades that i actually need, instead of buying too much printer and not needing all the features
10:28 PM roycroft: i should go look for a debian variant that will run on my netbook
10:28 PM roycroft: i've never been a fan of ubuntu
10:28 PM roycroft: maybe mint would be a good choice
10:28 PM roycroft: it all depends on the drivers, which are probably more a fucntion of debian itself than the derivative distro that i use
10:29 PM roycroft: and maybe straight debian would be ok - i've never run debian on a workstation before, so i don't know
10:29 PM roycroft: to me it's always been a server os
10:29 PM Tom_L: i have buster on my test pc iirc, that or stretch
10:32 PM roycroft: almost all the work machines are running buster
10:33 PM roycroft: and i'm even moving from vmware esxi to proxmox pve for my hypervisors, so even the host computers are running buster now
10:33 PM roycroft: the ones that have been converted
10:34 PM roycroft: i just fund a linux mint thumb drive
10:34 PM roycroft: i should try bootin that at least to see if it works
10:35 PM roycroft: this is an old netbook - it's about 12 years old - and it's an acer aspire, which is notorious for having odd hardware that's not well-supported outside the windows world
10:35 PM roycroft: hmm, it looks like 19.3 is current, and this usb stick has 19.2 on it, so that's fairly close
10:35 PM * roycroft gives it a go
10:39 PM roycroft: it is booting linux mint, so that's a good sign so far
10:57 PM jymmmm: Heh, I tried installing ubuntu on my netbook a few months ago, S L O W
11:17 PM roycroft: and it booted after the install, so this machine should work for me
11:27 PM sliptonic: My mill is currently configured with machine units in inch. I set it up that way years ago because the original hardware was in imperial units. But I work exclusively metric an the tool offsets are driving me crazy. I don't suppose anyone has written a script to convert a .ini file?
11:27 PM sliptonic: Also, I'm running 2.9.something. Can I just change the traj section and add the units=inch to the joint sections?
11:36 PM CaptHindsight: don't you want to change to units= metric or mm?
11:37 PM sliptonic: Well, yes. I'd like to machine units to be mm so the tool table offsets are mm. But I see that can be overriden on a per joint basis. So if I can just add that to the joint section, I don't have to fool with all the PID and acceleration settings
11:38 PM sliptonic: At least, if I'm understanding correctly.
11:39 PM CaptHindsight: sorry I don't recall, I'd have to try it
11:40 PM CaptHindsight: what is you current setting? in, inch, imperial
11:41 PM sliptonic: inch. Is there a difference?
11:43 PM CaptHindsight: https://forum.linuxcnc.org/49-basic-configuration/37365-change-configs-from-mm-to-inches
11:43 PM CaptHindsight: the opposite of what you want
11:44 PM CaptHindsight: you have to change the Scale value as well
11:46 PM sliptonic: Servo machine. No scale. But all the PID are in units like volts per machine unit. I don't want to monkey with that if I don't have to.
11:48 PM CaptHindsight: save you configs and backup
11:48 PM sliptonic: Oh yeah. Pushed to a git repo. (I speak from experience) :-)
11:48 PM CaptHindsight: it will only change by 25.4 based on the way to change
11:49 PM CaptHindsight: mm to inch vs inch to mm
11:51 PM sliptonic: That's what I thought but acceleration is in machine units per second squared. So would I not take (sqrt(current max_acceleration)*25.4)^2
11:52 PM CaptHindsight: machine units are either inch or mm
11:53 PM CaptHindsight: the info is written as though it's something else
11:54 PM sliptonic: I don't understand what you mean. From the traj section of the dev .ini page: MAX_ACCELERATION = 20.0 - Maximum acceleration for this axis in machine units per second squared.
11:55 PM CaptHindsight: and if your machine units for that axis is inches then 20.0 inches per second squared
11:55 PM sliptonic: Ahh. That could be written clearer.
11:55 PM CaptHindsight: if mm then 20.0 mm per second squared
11:55 PM CaptHindsight: yeah I know
11:55 PM sliptonic: (for us guys with psychology degrees)
11:56 PM CaptHindsight: heh
11:56 PM CaptHindsight: you nits
11:57 PM CaptHindsight: I went through this about 10+ years ago, trying to find out what basic machine unit LCNC uses
11:58 PM CaptHindsight: as if it was some unit that LCNC converts mm or inches to
11:58 PM sliptonic: So what's it using under the hood?