#linuxcnc Logs

Jul 24 2020

#linuxcnc Calendar

12:26 AM CaptHindsight: https://www.bio.org/policy/human-health/vaccines-biodefense/coronavirus/pipeline-tracker
12:32 AM CaptHindsight: https://biorender.com/covid-vaccine-tracker
12:32 AM CaptHindsight: https://pubs.acs.org/doi/10.1021/acsinfecdis.0c00168
12:36 AM veegee: Cats are so cute
12:36 AM veegee: Why do they get along with humans so well?
12:37 AM XXCoder: they are true overlords thats why
12:38 AM XXCoder: https://i.chzbgr.com/full/6818638336/h820CEA7E/i-for-one-welcome-our-new-feline-overlords
12:49 AM veegee: I don't agree with the cat memes at all. They're all exactly the opposite
12:49 AM veegee: In my experience anyway. They're really loyal and sweet
12:50 AM XXCoder: yeah
12:50 AM XXCoder: thats why they are so masterful overloards
12:50 AM XXCoder: effects isnt even felt
12:50 AM XXCoder: ;)
12:51 AM veegee: I bug them too much sometimes and they just play bite my hand gently
12:52 AM XXCoder: yeah
12:52 AM veegee: Whereas when I was a little kid, I bugged my little cousin a bit too much and he actually bit my hand, really hard
12:53 AM veegee: the scar in the shape of teeth marks is still visible
12:59 AM CaptHindsight: fluffy killers
01:00 AM XXCoder: fun
01:00 AM XXCoder: CaptHindsight: you calling veegee's cousion furry?
01:00 AM XXCoder: *cousin
02:42 AM Loetmichel: mornin'
02:42 AM Loetmichel: Meh, i should go to the doc soon... for a week now i got no feeling other than a tickle in my left pinky and ring finger. Probably pinched the Nervus ulnaris. That SHOULD be getting better by now though.:-(
02:42 AM XXCoder: :(
04:15 AM Loetmichel: *hehe* $me is printing a 40mm wrench out of PLA... because we have to tighten some military connectors to an already powder coated front panel and i dont want to risk the coworkers scratching the surface :-)
04:16 AM XXCoder: nice and it can be used again for no damage tighten too
05:07 AM JT-Cave: morning
05:07 AM XXCoder: hey
05:08 AM XXCoder: i got bad news from work today
05:08 AM XXCoder: got laid off
05:08 AM JT-Cave: that sucks
05:09 AM XXCoder: yeah. though they also said they are trying to get more jobs and want to rehire me in a bit
05:09 AM JT-Cave: you file for unemployment?
05:09 AM XXCoder: done
05:24 AM XXCoder: anyway
05:24 AM XXCoder: ui is annoying on requiring 3 work searches weekly
05:24 AM XXCoder: expecially since i want to have short vacation next week
05:24 AM XXCoder: *ue
05:25 AM JT-Cave: ue?
05:25 AM Roedy86 is now known as Roedy
05:25 AM XXCoder: unemployment
05:26 AM JT-Cave: ah
05:26 AM JT-Cave: online searching or pounding the pavement?
05:26 AM Tom_L: morning
05:26 AM XXCoder: online
05:26 AM JT-Cave: yo
05:26 AM XXCoder: pavement method is ancient
05:27 AM XXCoder: i wish I had a way to be self employed
05:27 AM XXCoder: but im dumbass
05:27 AM Tom_L: odd, they don't make you job search here due to the pandemic
05:27 AM XXCoder: actually you may be right
05:27 AM XXCoder: it wasnt a requirement when I was in work share due to 32 hours
05:28 AM Tom_L: yeah
05:29 AM Tom_L: JT-Cave, we live in a different era... everything is done online now :D
05:29 AM JT-Cave: yea that's for sure
05:29 AM XXCoder: you can really tell jt havent been underemployed or unemployed for long time. good :)
05:29 AM Tom_L: or who you happen to know
05:29 AM Tom_L: i haven't looked for a job in 40 yerars
05:30 AM JT-Cave: actually I've never been unemployed for more than a few days
05:30 AM Tom_L: same here
05:30 AM XXCoder: me, years
05:30 AM XXCoder: not even counting college years
05:30 AM XXCoder: unemployed from 2010 to late 2013
05:30 AM Tom_L: my resume would be very short as far as places
05:31 AM XXCoder: a whole history of work for me would be pages long lol
06:07 AM * SpeedEvil divides by zero.
06:08 AM SpeedEvil: (got a nasty virus at age 12, and diddn't really get better)
07:13 AM Loetmichel: oh maan. just got a few circular saw blades for aluminium deliverd. Coworker looks on the backing cardboard: "why is it this blade good for alu, useable in wood but no go in steel? Now i have to find a way to teach him about cutting angles, edge radius and so on...
07:48 AM Tom_L: Loetmichel, give him a plate of steel and let him figure it out. it will cost you a blade or two and maybe a finger or eye for him but meh
07:50 AM JavaBean: Loetmichel got any "brand recommendations" for an alu circular saw blade?
07:51 AM Loetmichel: we just bought the bosch ones for the new bosch circular saw
07:51 AM Loetmichel: not tested YET though
07:52 AM JavaBean: standard 7 1/4 blade? or is it one of the big ones?
07:52 AM Loetmichel: 216mm
07:52 AM Loetmichel: so 8.6"
07:53 AM Loetmichel: 8.5"
07:53 AM JavaBean: hmmm, smaller than the "big ones" whose size i can't quite remember
07:54 AM Tom_L: loet, how many teeth?
08:21 AM Loetmichel: Tom_L: https://preisvergleich.check24.de/saegeblaetter/bosch-kreissaegeblatt-expert-fuer-aluminium-216-x-30-x-26-mm-zaehnezahl-64-1-stueck-2608644110.html
08:24 AM Tom_L: fairly fine
08:25 AM Tom_L: do those cuts in the middle keep it from ringing or warping?
09:03 AM roycroft: both, tom_l, but when cutting aluminium you would not hear the ringing anyway
09:07 AM JT-Shop: bandsaw cutting crooked... I hope it's the blade
09:23 AM JT-Shop: broken blade guide $85 - $34 what a spread of pricing lol
09:23 AM JT-Shop: Zoro wins
09:27 AM robotustra: https://www.youtube.com/watch?v=1RWFPOxonaU
12:40 PM JT-Shop: nice power steering hose blew on the van
12:53 PM roycroft: you need bigger biceps anyway, don't you?
12:54 PM roycroft: when i was a wee lad my aunt, who was a tiny woman, had a car that had a bizarre problem - the power steering only worked when she turned left
12:54 PM roycroft: for some reason it did not work when she turned right
12:55 PM roycroft: fortunately she lived in a small town, because she ended upplanning her routes so she could make all left turns
12:55 PM roycroft: i don't even know how that works where the power steering pump doesn't kick in on right turns
12:55 PM roycroft: but i remember riding with her and it was pretty weird
12:56 PM roycroft: plus she often had to park some distance from her destination to ensure she would not have to make any right turns on leaving
01:00 PM roycroft: the other possibility, of course, is that i was heavily drugged as a lad, and imagined all of this
01:00 PM roycroft: that might explain a lot of my personality quirks
01:44 PM CaptHindsight: power steering boxes have a dead zone in the center, the valve for one side of steering was likely shot
01:45 PM roycroft: that would explain it
01:45 PM CaptHindsight: there is low pressure in the box when in the center dead zone
01:45 PM roycroft: i still may habe been heavily drugged, but at least there's a plausible explanation for that particular memory :)
01:46 PM CaptHindsight: modern cars often sense when there is high pressure and the ECU bumps the idle up slightly to account for this
01:47 PM CaptHindsight: I only mention this part since it's a pain in the ass problem in some cars to fix
01:48 PM CaptHindsight: the valve is only easily accessed with the engine out
02:02 PM CaptHindsight: being heavily drugged was called a night out as a kid
02:08 PM roycroft: iirc my car's power steering is electric
02:08 PM roycroft: because it's a hybrid, and the engine is not always running
02:14 PM robotustra: dissassembled and assembled the mill again just to measure sizes of ACME nuts
02:15 PM CaptHindsight: robotustra: they have charts with those dimensions :)
02:15 PM robotustra: show me
02:15 PM robotustra: g0704 nuts?
02:16 PM robotustra: I also measured the mounting holes there they sit
02:16 PM robotustra: all clearences
02:17 PM robotustra: I was looking for nuts dimentions yesterday and didn't find them
02:17 PM robotustra: I was stupid and didn't measure them the first time
02:17 PM roycroft: if you look on youtube for g0704 cnc conversions you'll probably find everything you need to know about the machine without having to disassemble it
02:18 PM CaptHindsight: someone in #hazzy makes upgrades for those mill/drills
02:18 PM roycroft: it's a very common cnc conversion
02:19 PM robotustra: I don't need conversion
02:19 PM CaptHindsight: yes it's like the Schloubleninin (might have added some extra eninins) for our friends across the pond
02:19 PM robotustra: it reverse I'm trying to save as many parts as I can
02:20 PM robotustra: original nuts are done very baldy
02:20 PM robotustra: I got nuts from mcmasters and they are beautiful, no backlash
02:21 PM robotustra: now I have to fit them to size and install them
02:21 PM CaptHindsight: http://www.migration.g0704.com/
02:23 PM CaptHindsight: ah SCHAUBLIN
02:23 PM CaptHindsight: or are those closer to a bridgeport?
02:25 PM robotustra: it's KC-20
02:25 PM robotustra: I think its exactly like g0704
02:25 PM robotustra: they just replaced shilds
02:26 PM * JT-Shop thinks cutting 2 1/2 1018 round bar on the home made vertical bandsaw sucks big time with a fine tooth blade
02:27 PM CaptHindsight: JT-Shop: slow or does it wander?
02:28 PM CaptHindsight: wow down to $1k or best https://www.ebay.com/itm/1981-MATSUURA-MC-500V-CNC-with-YASNAC-3000G-control/283531831618
02:28 PM CaptHindsight: has 2 of them
02:29 PM CaptHindsight: one good thing about living around here is the cheap old iron
02:31 PM JT-Shop: slow because of the fine tooth pitch and the part gets real hot so you can't cut it all at once
02:31 PM JT-Shop: it's vertical so you are guiding the cut...
02:35 PM CaptHindsight: https://www.ebay.com/itm/Sharnoa-SVC-52D-CNC-VMC-3500-rpm-BT50-Rigid-Box-Ways-52-x-29-5-No-Reserve/313134587013 $1k
02:36 PM CaptHindsight: $2750 or best https://www.ebay.com/itm/CNC-Turret-Punch-Press/143638916387
02:37 PM CaptHindsight: Table 39 X 50"
02:38 PM roycroft: i hope you're not crosscutting it
02:38 PM roycroft: or if you are, that you have it clamped firmly in a vise
02:39 PM JT-Shop: yes cross cutting it with no vise... just magic
02:39 PM JT-Shop: https://gnipsel.com/images/7x12-bandsaw/
02:43 PM CaptHindsight: I'd like a dust free angle grinder
02:43 PM Tom_L: wouldn't we all
02:44 PM Tom_L: CaptHindsight, it would cost more to move that than to buy it
02:45 PM CaptHindsight: Tom_L: lots of machines like that recently
02:45 PM CaptHindsight: expect many more in the next year
02:46 PM CaptHindsight: https://www.youtube.com/watch?v=myT-k-a7XqA
02:46 PM CaptHindsight: Makita Grinder Dust Shroud
02:47 PM * JT-Shop watches 3 seconds of hand pointing and closes that page lol
02:47 PM JT-Shop: no way I could use that for what I do
02:47 PM CaptHindsight: yeah, a tent with windows is likely best
02:47 PM Tom_L: i didn't realize the tool changer function isn't built into the control but rather a gcode file stored in the machine
02:48 PM Tom_L: at least on alot of them
02:48 PM XXCoder: yeah on a61 laser measuring is couple of gcode files
02:48 PM XXCoder: its fun to see gcode spam while its measuring a tool
02:48 PM CaptHindsight: or a vacuum nozzle that requires the operator to wear a safety harness so they don't get sucked in
02:49 PM CaptHindsight: angle grinder room that is a wind tunnel
02:53 PM Tom_L: i'm not sure if they're stored in a special memory location or not though
02:53 PM Tom_L: more than likely they are
02:54 PM Tom_L: wish i could find a tree yasnac service manual online
02:55 PM JT-Shop: and that piece of 2 1/2" round stock was only 2" long
03:01 PM JT-Shop: the vertical bandsaw usually only sees 11 gauge or thinner metal and other odd things
03:01 PM XXCoder: https://www.theverge.com/tldr/2019/6/30/19102430/amazon-engineer-ai-powered-catflap-prey-ben-hamm
03:01 PM XXCoder: interesting
03:08 PM CaptHindsight: i was so covered in metal dust yesterday that the sink i rinsed off in has micro rust particles all over the bottom
03:09 PM CaptHindsight: and of course the iron oxide migrated into very pore
03:09 PM CaptHindsight: every even
03:31 PM jymmmm: CaptHindsight: That's because you were iron defeciant
03:32 PM roycroft: you has to eats more spinach
03:33 PM jymmmm: /forceNickChange CaptHindsight PopeyeTheSailorMan
03:34 PM JT-Cave: missouri is getting 1600 new cases of covid a day now... getting out of control fast
03:35 PM roycroft: we're back down to 34th in new cases
03:35 PM XXCoder: not as bad as florida but yeah
03:35 PM jymmmm: JT-Cave: anywhere more central?
03:35 PM roycroft: we were 45th for a long time, then we had a spike
03:35 PM XXCoder: over 11k daily
03:35 PM JT-Cave: where is that ranking at?
03:35 PM roycroft: theguardian.com link to it
03:35 PM JT-Cave: central to what?
03:36 PM roycroft: https://www.theguardian.com/world/ng-interactive/2020/jul/15/covid-19-coronavirus-us-map-latest-cases-state-by-state
03:36 PM jymmmm: missouri
03:36 PM jdh: reported cases. wait times for test results here are 6-10 days
03:36 PM XXCoder: 672 new cases at wa
03:36 PM roycroft: i'm not so interested in the exact number of cases we have reported every day
03:37 PM roycroft: but whether the trend is increasing or decreasing
03:37 PM roycroft: and we are going down again
03:37 PM roycroft: so that's good
03:37 PM roycroft: at long last, almost everyone wears a mask now
03:37 PM jdh: I fail to see you you can gain any useful information out of limited testing
03:38 PM roycroft: jdh: actually there is useful information - percentage of positives
03:38 PM roycroft: this is what debunks the president's argument about testing
03:38 PM jdh: assuming your positives were in a semi-normal distribution
03:38 PM jymmmm: JT-Cave: https://covidtracking.com/data/state/missouri
03:38 PM roycroft: testing has gone up 30% nationwide
03:38 PM roycroft: while positives have gone up 285% nationwide
03:38 PM jdh: testing of randoms, or testing of people exposed or symptomatic
03:38 PM JT-Cave: jymmmm, http://mophep.maps.arcgis.com/apps/MapSeries/index.html?appid=8e01a5d8d8bd4b4f85add006f9e14a9d
03:39 PM roycroft: as the number of tests increases the distribution of the testing increases
03:39 PM roycroft: when tests were very limited, only people who were symptomatic, known to be exposed, or at high risk were being tested
03:39 PM * JT-Cave wanders back to the machine shop to get some work done
03:39 PM roycroft: now anyone can be tested
03:39 PM jdh: I don't think that is accurate.
03:40 PM roycroft: one would expect the distribution to be more random
03:40 PM jdh: can be, but who is going to be tested for no reason
03:40 PM roycroft: people who want to go back to work and are told they have to test negative before being allowed to do so
03:40 PM jymmmm: JT the cases on that link I gave are cumlative, not per day.
03:40 PM roycroft: people who are concerned and just want to know
03:40 PM jdh: I never left work. nobody is being tested
03:41 PM roycroft: i've been working from home since march
03:41 PM jdh: being tested on one random day is also pointless if you have no expectation of having been exposed
03:41 PM roycroft: if you find yourself in close proximity to any other human you should have an expectation that you may have been exposed
03:41 PM jdh: I have been at work every day other than 2 vacation days. nobody I work with has been tested except the ones with exposure
03:42 PM roycroft: if you are totally isolated from the outside world you can have a safe expectation that you have not been exposed
03:42 PM roycroft: otherwise you can correclty assume you may have been exposed
03:43 PM jdh: so what good woudl me being tested last tuesday do
03:43 PM jdh: or the 500 people I work with
03:43 PM roycroft: it would be a data point
03:43 PM roycroft: it would help with trending predictions
03:43 PM jymmmm: JT-Cave: ARe you anywhere near Jackson, KC, BUCHANAN, St Louis, St Loius City, or St Charles?
03:44 PM roycroft: epidemiologists would thank you for helping them do their jobs better
03:44 PM jdh: I would be negative.
03:44 PM roycroft: so you think
03:45 PM roycroft: if you've not been tested you cannot possibly know that you don't have it
03:45 PM jymmmm: jdh: You got cooties, admit it
03:46 PM roycroft: and if you got tested on tuesday last, all you would know is that you were negative on that day
03:49 PM CaptHindsight: jymmmm: look up his website
03:49 PM jdh: I'm pretty sure that's what I have been saying.
03:50 PM roycroft: i'm not sure what your point is
03:50 PM roycroft: and i don't think that's what you've been saying
03:50 PM jymmmm: CaptHindsight: IDK the cities in his area, he would know that better than I, it's not a biggy, Those were just the places that had 1000+
03:50 PM roycroft: i thought you said you have not been tested
03:50 PM jymmmm: roycroft: have you been tested?
03:50 PM roycroft: no
03:51 PM jdh: right. because that's all I would know and it isn't in the least bit interesting.
03:51 PM roycroft: and as such, i assume i have it
03:51 PM jdh: if I were tested every tuesday, it would be.
03:51 PM roycroft: and act accordingly when i am near other humans
03:51 PM roycroft: well i told you why the data are useful
03:51 PM roycroft: not to you in particular
03:52 PM roycroft: but to them that are wrapping their heads around how it's spreading
03:52 PM roycroft: i.e. the epidemiologists
03:55 PM roycroft: here's the bottom line:
03:55 PM roycroft: just because you don't undertand the statistical models that are used to track the spread of the novel coronavirus does not mean they are not valid or useful
03:56 PM roycroft: it just means you don't understand them
03:56 PM roycroft: you seem rather intelligent, so i'm sure you could understand them if you wanted to
03:56 PM roycroft: so i'm not saying you're incapable of that
03:56 PM roycroft: it's just not your current area of expertise
03:57 PM roycroft: if you reject all knowledge that is not your area of expertise you reject the overwhelming majority of all knowledge
03:57 PM CaptHindsight: jymmmm: think of an area with few people and >1 hour drive from any large town
03:57 PM roycroft: and you don't strike me as the kind of person who does that
03:58 PM roycroft: so i'm just a bit confused about it all
03:58 PM roycroft: but that's ok - i'm confused about lots of things
03:58 PM jdh: I'm saying that testing randoms would be useful.
03:58 PM jdh: testing a self-selected population is not so useful. which is what we do
03:59 PM roycroft: oh
03:59 PM roycroft: so you ARE an epidemiologist
03:59 PM roycroft: sorry, i missed that part
03:59 PM jdh: not at all, but I did stay somewhere one night.
04:00 PM * roycroft finds battling with a stupid, badly documented wordpress plugin more useful than this conversation has become, and focuses his full attention to that
04:00 PM jdh: :)
04:01 PM JT-Cave: jymmmm, butler county, I keep a spreadsheet so I know the rise in cases day by day
04:01 PM jdh: and yet, you don't get tested either.
04:01 PM jdh: I'd happily get an antibody test if it were easy
04:10 PM jymmmm: JT-Cave: ah good
04:11 PM jymmmm: I was at the hospital last week visiting. I wear gloves when I go in public. They MADE me take off the gloves, which I still tink is bullshit
04:32 PM roycroft: i've had that conversation with my doctor - about gloves
04:33 PM roycroft: her take on it is that i should not wear gloves while in public
04:33 PM roycroft: that i should try to not touch too many things that other people touch, to use hand sanitizer before i enter my vehicle after being in a public place, and to wash my hands immediately upon returning home
04:34 PM roycroft: she said that the gloves are just another transmission vector if not handeld properly
04:34 PM roycroft: handled
04:34 PM roycroft: we discussed where they can be useful
04:34 PM roycroft: when i go to the home improvement center they are not useful for me, according to her
04:35 PM roycroft: but they are very useful for the cashier
04:35 PM roycroft: because the cashier deals with lots and lots of people and their stuff
04:35 PM roycroft: and has to do a hand santiizing thing between every customer
04:35 PM roycroft: over the course of hundreds of customers in a day, that much hand sanitizer would destroy the cashier's skin
04:36 PM CaptHindsight: proper use requires an understanding of transmission
04:36 PM roycroft: if i have open wounds on my skin i'll wear gloves
04:36 PM roycroft: on my hands, that is
04:36 PM roycroft: if i have a cut on my arm gloves are not going to help with that :)
04:36 PM CaptHindsight: most are just not used to them
04:37 PM roycroft: anyway, that's what my doctor suggested
04:37 PM roycroft: and perhaps the hospital have a no gloves policy because they believe that people are more likely to transmit while gloved than when not
04:37 PM roycroft: and that may be true
04:38 PM jymmmm: For me it's simple... it's a barrier between everything else and my skin. We don't realizr how many things we touch inadvertantly, so if someone touches something, and then I touch it, my skin isn't coming into direct contact. And yes, I do wash my gloves with soap and water/sanitizer if I'm mkaing multiple stops in a day. and jsut carry a box of gloves in the car
04:38 PM CaptHindsight: as far as the masks go they should just come out and say that initially we needed masks more for medical workers
04:38 PM roycroft: the other factor that my doctor mentioned is that people tend to be more careless when wearing gloves, thinking that they do not need to practise a rigorous hygiene routine bcause they're protected by the gloves
04:38 PM CaptHindsight: you idiots would have just hoarded them all
04:38 PM CaptHindsight: like TP
04:39 PM roycroft: jymmmm: the hospital have no way of knowing that you wash them
04:39 PM roycroft: they're making policy based on average behaviors
04:39 PM CaptHindsight: sure
04:39 PM roycroft: give them a break :)
04:39 PM CaptHindsight: most people are ignorant and lazy
04:39 PM jymmmm: roycroft: I know, that's why I take them off once I have the vistors badge, then grab another pair and put them on
04:39 PM roycroft: i'd say "thoughtless and preoccupied"
04:40 PM roycroft: but i'm trying to be nie
04:40 PM roycroft: nice
04:40 PM CaptHindsight: you can't expect rational behavior
04:40 PM jymmmm: I had to ask the nurse for a box of XL cause it seems there are ZERO healthcare works with XL hands =)
04:40 PM CaptHindsight: but it's by design
04:40 PM roycroft: there are still people who actually believe that the purpose of wearing a mask is to prevent oneself from getting infected
04:40 PM roycroft: and that's why those people oppose wearing them
04:41 PM Tom_L: i generally pull a couple paper towels and touch the keypad with them and wrap them around the gas nozzle when pumping gas
04:41 PM CaptHindsight: sure and lots of other nonsense
04:41 PM jymmmm: CaptHindsight: My coil packs came in today, looks good
04:41 PM Tom_L: jymmmm, does it work?
04:41 PM CaptHindsight: fairies, angels, invisible angry men in the sky
04:41 PM jymmmm: Tom_L: Which?
04:41 PM roycroft: i'll not get into that any further, though, as it would devlove into politics
04:41 PM Tom_L: your coil pack
04:41 PM roycroft: and i'm trying to stick to science
04:42 PM jymmmm: Tom_L: JUST got them, waiting for it to cool down some, but I'm going to ohm them out for a baseline between the coils
04:42 PM CaptHindsight: science is for the educated
04:42 PM roycroft: we're at a point where i know which stores i go to have hand sanitizer stations and which do not
04:43 PM roycroft: at the ones that do i just go about my business, donning the mask when i approach the entrance door, or sooner if the parking lot is full of people
04:43 PM roycroft: at the ones that do not i do the same, but carry a little bottle of hand sanitizer in with me
04:44 PM roycroft: the point is to not touch my car keys, door handle, or anything on the inside of my car unless freshly sanitized
04:44 PM Tom_L: mine doesn't use a key
04:44 PM jymmmm: Here's the other thing... Doctors without borders in a 3rd world country used hand sanitizer admantly. Hand they just used soap and water there wuldn't have been an outbreak. Alchohol doens't kill everything.
04:44 PM roycroft: you have an locking fob though, don't you?
04:44 PM Tom_L: i can push it from outside my pocket
04:44 PM jymmmm: had*
04:44 PM roycroft: so that part is good
04:45 PM roycroft: you still want to sanitize before you touch the steering wheel though
04:45 PM jymmmm: Santizer is NOT a perfect solution.
04:45 PM roycroft: jymmm: when i return home after a trip i use soap and water, not hand sanitizer
04:45 PM Tom_L: i have a bottle in the center console
04:45 PM Tom_L: and do that too
04:45 PM XXCoder: remember that santizers have dweel time
04:45 PM XXCoder: where it must stay wet in order to work
04:45 PM roycroft: soap and water for 20 seconds is very effective
04:46 PM XXCoder: netural disinfectant needs 4 minutes to work before wiping off
04:46 PM roycroft: and does not have the skin drying affect that alcohol-based sanitizers do
04:46 PM Tom_L: what about uv light?
04:46 PM roycroft: oh, that too
04:46 PM XXCoder: uvc required, and dangerous to mortals like us
04:46 PM Tom_L: i can smell mine as soon as i turn it on. i'm sure it's plenty strong
04:46 PM roycroft: i do strip naked and lay out in my hammock for six hours afer every trip to the outside world before going back in my house
04:46 PM XXCoder: does your skin burn under it?
04:46 PM Tom_L: tmi
04:47 PM jymmmm: roycroft: <---- waffle butt
04:47 PM Tom_L: dunno, i use it for uv paint
04:47 PM XXCoder: (burn skin under uv light)
04:47 PM XXCoder: then likely no
04:47 PM Tom_L: i'm sure it probably would
04:47 PM roycroft: and teh bleach
04:47 PM XXCoder: ah maybe
04:47 PM roycroft: let's not forget the bleach cocktail that i gargle with every time
04:47 PM roycroft: and snort up my nose
04:48 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/boards/USBTiny_Mkii/silkscreen/silk_batch_cure.jpg
04:48 PM Tom_L: 2 18? " tubes
04:48 PM roycroft: it's going to get up to 37 by sunday
04:48 PM roycroft: that's too bloody hot
04:49 PM roycroft: and i have a lot of work to do outdoors this weekend
04:49 PM Tom_L: anything under 100 is bearable
04:49 PM roycroft: much of it is woodworking, so i'll probably set up an ez-up in my driveway
04:49 PM roycroft: 37 is *just* under 100f
04:50 PM roycroft: and it's bloody hot
04:51 PM roycroft: when i pulled the jointer and thicknesser out in the driveway last weekend to work, by the end of the day i had to put on thick gloves to put them back in the shop, becaue they were too hot to touch
04:51 PM roycroft: that's how this weekend will be
04:51 PM Tom_L: fry eggs first so you don't waste the heat
04:53 PM XXCoder: steaks too if metal mass is large enough heh
04:53 PM roycroft: or i'll erect the ez-up :)
04:53 PM roycroft: i should have done that last weekend
05:05 PM roycroft: speaking of which
05:05 PM roycroft: it's the weekendi in just over 3 minutes
05:17 PM JT-Shop: crap I forgot to order a 5/8-18 nut for the rod end... I'm betting I don't have a NF 5/8" nut
05:20 PM XXCoder: doh
05:20 PM XXCoder: theres always that one missing thing
05:20 PM XXCoder: you recall story of for want of nail
05:21 PM JT-Shop: well I'll be damned I found a box of 5/8" NF grade 8 nuts
05:22 PM JT-Shop: it's chicken time for sure now
05:27 PM XXCoder: yay
05:28 PM * jymmmm never knew chickens were that strong that then needed Grade 8 bolts
05:29 PM jymmmm: nuts*
05:30 PM XXCoder: well yeah I found old photo of JT-Shop and his rooster https://encrypted-tbn0.gstatic.com/images?q=tbn%3AANd9GcTDFWq9ZORtzQIzRCrzUMt4UPaE5Y64FsFsKA&usqp=CAU
05:31 PM jymmmm: Ok, if I have 0.5 ohm on primary, and 5.63K ohm on secondary, is that a 11260:1 ratio? So at 12VDC that would be 135KV to the spark plug???
05:31 PM XXCoder: his daughnet with one of chicks https://i.pinimg.com/originals/b5/ac/9c/b5ac9c2c4b252cc2bca8b866cfc3a9a4.jpg
05:32 PM jymmmm: XXCoder: Nah that's his daugher HOLDING JT
05:32 PM XXCoder: lol
05:34 PM jymmmm: My math has gotta be messed up, 135KV doens't seem right for a spark plug, could it?
05:34 PM jymmmm: I don't know the ACTUAL PWM, but still
05:37 PM W1N9Zr0: Jymmm: you need to measure inductance, not resistance to calculate transformer ratio
05:41 PM jymmmm: W1N9Zr0: Bah, phooey, lol
05:43 PM jymmmm: Ok, if I measure the amperage of the primary, then of the secondary, MAYBE I can get the ratio???
05:47 PM jymmmm: The COP only has 2 terminals, so common positive between pri/sec, switched gnd to the ECM
05:48 PM W1N9Zr0: you can put a small ac voltage into either side of the transformer and measure the voltage on the other side
05:48 PM W1N9Zr0: or as a rule of thumb, 1mm of spark gap in air is 3kV
06:00 PM jymmmm: Weird, both the 12V side and the pulse side are drawing 80mA
06:01 PM jymmmm: W1N9Zr0: Yeah, I jsut don't have a SMALL ac source atm =)
06:02 PM jymmmm: And I'd put it on the secondary side, just so I don't blow out my meter =)
06:03 PM * Tom_L looks at jymmmm's wall outlet
06:04 PM jymmmm: Tom_L: Noooooooooooooooooooooo, I said SMALL
06:04 PM jymmmm: IDK where my 24VAC xmfr is =)
06:04 PM Tom_L: no 6 9 or 12v transformers?
06:05 PM Tom_L: 24?
06:05 PM jymmmm: If I did, I'd mesure all the MOT's I have
06:05 PM Tom_L: your furnace is 24v ac
06:05 PM jymmmm: @$V CT
06:05 PM jymmmm: 24V CT
06:05 PM jymmmm: NUH UH, I aint touching it if I don't have to, it's working again, and wanna keep it that way =)
06:06 PM Tom_L: hahaha
06:07 PM Tom_L: door bell is too
06:07 PM Tom_L: unless you got one of those stupid fancy ones with a camera
06:08 PM jymmmm: I got neither, you gotta knock hard
06:08 PM Tom_L: foot operated?
06:10 PM jymmmm: huh?
06:17 PM jymmmm: Ok, this should help a little... https://i.imgur.com/vwOYC8J.jpg
06:24 PM CaptHindsight: <20KV on the secondary or you risk generating x-rays
06:26 PM DaViruz: jymmmm: measuring resistance isn't very useful unless the wire size is equal
06:26 PM DaViruz: and getting x-rays without vacuum is darn near impossible
06:28 PM CaptHindsight: and he'd need a really accurate milliohm meter on the primary
06:28 PM DaViruz: if you take the square root of the resistances you might be in the ball park since wire cross section ratio probably approaches winding ratio
06:29 PM CaptHindsight: how accurate is his AC millivolt meter? run AC into the secondary and measure the primary
06:29 PM DaViruz: that's probably the best way
06:32 PM CaptHindsight: hook up the output to a crt, run the crt for a few hours while sitting near crt, if you come down with skin cancer in the next few years it was likely over 20KV secondary
06:34 PM CaptHindsight: for faster results place some xray film near the crt
06:35 PM DaViruz: i wonder it it'd be possible to actually create a x-ray image using a crt
06:35 PM DaViruz: as in scanning the beam normally and varying the intensity
06:36 PM DaViruz: not that i can think of a use
06:40 PM Tom_L: DaViruz, https://www.youtube.com/watch?v=_hAufRLMd0c
06:41 PM Tom_L: https://americacomesalive.com/i/shoe-fitting_1-1.jpg
06:41 PM Tom_L: step right up
06:41 PM XXCoder: wonder if we can do it witg supersonics now
06:42 PM XXCoder: now that we have ways to make image by it
06:42 PM XXCoder: I would LOVE to be able to see how well shoe fits
06:42 PM DaViruz: ultrasonics work extremely poorly in air
06:43 PM XXCoder: hmm too bad
06:44 PM DaViruz: in solid materials it's pretty amazing though, i'm working on a project at work to image the inside of a ball bearing while it's rotating
06:47 PM XXCoder: can something similiar be done now?
06:47 PM XXCoder: without xray
06:51 PM DaViruz: i suppose if you only want to see the inside ultrasonics might work, but i don't think you'd be able to get the outer contour
06:51 PM DaViruz: but maybe it could be combined with laser scanning
06:52 PM XXCoder: yea kaser to see shoe outers, sonics for inside?
06:52 PM XXCoder: dunno
06:53 PM DaViruz: the shoe fitters i've seen today have used some sort of pressure sensitive plate you stand on and get an image of which part of the foot is mostly loaded
06:53 PM DaViruz: but i think that's mostly for making custom insoles
06:53 PM XXCoder: sonic alone would work for fast measuring of foot size
06:53 PM XXCoder: but cant "see inside shoe"
06:54 PM XXCoder: thats what that xray thing was so wonderful on
06:54 PM Tom_L: chiropractors use them too
06:55 PM XXCoder: if it was possible and faurly cheap would be possible to fake "xray" so it actually works
06:55 PM XXCoder: reproduction thats safe, just add "this does not actually use xray like old one"
06:58 PM jymmmm: XXCoder: Can too... ultrasound is used to see babies all the time
06:59 PM XXCoder: jy via solid contact yes. like daviruz said it dont work well in air
06:59 PM jymmmm: I missed the air part
06:59 PM jymmmm: Ok, radar
07:00 PM XXCoder: yeah. too bad really
07:00 PM XXCoder: i dont know radar
07:00 PM jymmmm: Wait, no, not THRU things, just distance and motion
07:01 PM XXCoder: i remember something like backscatter radio
07:01 PM XXCoder: would it be possible to go though and get details of shoe and foot?
07:19 PM CaptHindsight: MRI
07:20 PM CaptHindsight: would also rip out all the metal in your pockets
07:20 PM CaptHindsight: you could step in and have close like a clam shell around your shins
07:21 PM CaptHindsight: scare kids
07:21 PM CaptHindsight: like being eaten by a plant
07:22 PM XXCoder: lol
07:22 PM XXCoder: little too much
07:24 PM CaptHindsight: so clamshell ultrasonic probe
07:24 PM CaptHindsight: the probe is on a roller
07:25 PM CaptHindsight: for $5 extra it will also tickle or massage your feet
07:27 PM CaptHindsight: https://youtu.be/uc9UNZY5b0o?t=49 like a back massage chair
07:29 PM roycroft: what a boring afternoon
07:29 PM XXCoder: boring days is when things get invented
07:29 PM roycroft: i glued up the two big boards that i'm using to make the chop for my new bench
07:30 PM roycroft: and shoved them in a vacuum bag to clamp them
07:30 PM roycroft: then i found that there's a tiny leak at the valve
07:30 PM roycroft: i'm getting enough vacuum to clamp them properly, but the ventury is running 100% of the time
07:30 PM roycroft: instead of cycling like it usually does
07:31 PM roycroft: and with my issue with popping my compressor breaker, i have to sit in the shop and babysit the vacuum pump
07:31 PM roycroft: for two hours
07:31 PM robotustra: I did a thing
07:31 PM roycroft: i just brought a stack of magazines out there
07:31 PM roycroft: and i need to get back
07:31 PM roycroft: i came in to check emails, as i'm expecting one from a friend
07:32 PM roycroft: my vacuum setup is set to cycle at 22 in of mercury
07:32 PM roycroft: it's pulling down to 21 in
07:32 PM roycroft: so *almost* there
07:32 PM roycroft: but not enough for it to cycle properly
07:33 PM roycroft: and i have to take it apart to reset the cutoff point, which i can't really do while it's in use
07:33 PM * roycroft heads back, with plans to grab a refreshing beverage on his way
07:36 PM robotustra: https://imgur.com/a/RuNgsWa
07:36 PM robotustra: now I have 0.001" backlash on X axis
07:37 PM robotustra: mcmaster nuts - rulez forever
07:37 PM robotustra: unfortunately Y axis need more work because the nut on that axis is longer
07:39 PM CaptHindsight: Silky chickens for free
07:39 PM veegee: Does anyone recognize the materials science(?) book in the background? https://youtu.be/9FTC1RTnPF0?t=149
07:39 PM CaptHindsight: https://racine.craigslist.org/grd/d/coloma-silky-chickens-for-free/7157577067.html
07:39 PM veegee: It's an AvE video
07:39 PM veegee: I posted the question in the comment section but may not get a response
07:40 PM veegee: I really like the analogy of a salt in water solution and the salt precipitating out of solution as it cools to explain carbon in iron
07:41 PM CaptHindsight: are you looking for a chart similar?
07:41 PM CaptHindsight: andypugh might have a suggestion
07:42 PM veegee: Yes but also reading that whole book
07:42 PM CaptHindsight: his post hole digging research was on this subject
07:42 PM veegee: I'll check that out
07:43 PM veegee: I studied organic chemistry formally but didn't go into inorganic and solid state chemistry unfortunately :(
07:43 PM CaptHindsight: that is common
07:43 PM veegee: Studied more human biology/immunology/virology instead :(
07:44 PM veegee: University of Toronto also likes to split their materials science into a completely different faculty, faculty of engineering, which is a pain in the ass to switch to
07:45 PM CaptHindsight: i didn't do much on the organic chem side until I got into DNA synthesis
07:45 PM veegee: I was in the arts and science faculty which was more about medical stuff
07:45 PM veegee: what did you study?
07:45 PM CaptHindsight: this was on the job
07:46 PM veegee: what kind of job got you into DNA synthesis out of nowhere haha
07:46 PM CaptHindsight: coming up with way to rapidly synthesize DNA
07:46 PM veegee: are you a biomedical engineer?
07:46 PM veegee: What's your main thing?
07:47 PM CaptHindsight: have become one, my background was EE and ME then chemistry after the old guys around here got too old
07:47 PM andypugh: veegee: By the Power of Google: https://books.google.co.uk/books?id=2ck0AwAAQBAJ&pg=SA7-PA22&dq=%227/22+Materials,+properties+and+selection%22&hl=en&sa=X&ved=2ahUKEwjZ_9XYlOfqAhWFsnEKHfmoC_AQ6AEwAHoECAAQAg#v=onepage&q=%227%2F22%20Materials%2C%20properties%20and%20selection%22&f=false
07:47 PM CaptHindsight: started making DNA synthesizers about 7 years ago
07:48 PM XXCoder: Restricted Page
07:48 PM XXCoder: You have reached your viewing limit for this book (why?).
07:48 PM veegee: oh thanks, I thought that was just the chapter title
07:48 PM XXCoder: funny if you go forward a page then back you can see it
07:48 PM andypugh: It was, but it worked as a search term :-)
07:48 PM veegee: I just teef it from a torrent
07:48 PM veegee: Or if I deem it worthy and of high quality, purchase it
07:49 PM XXCoder: image direct link https://books.google.co.uk/books/content?id=2ck0AwAAQBAJ&pg=SA7-PA22&img=1&zoom=3&hl=en&sig=ACfU3U2tTaJdED-Z7jq5vaXWwqGQ7wXfaQ
07:49 PM andypugh: I spent 2 years inventing a new spring-steel alloy last century.
07:52 PM veegee: CaptHindsight how old are you now?
07:53 PM CaptHindsight: veegee: 137
07:53 PM robotustra: in dogs years?
07:53 PM veegee: No really
07:54 PM veegee: I'm just curious, I'm not going to use that to hunt you down and murder you in your sleep, I promise
07:54 PM veegee: I can't even google a book
07:55 PM robotustra: why are you sure that other in this channel will not do this?
07:55 PM robotustra: :)
07:55 PM CaptHindsight: creative Canadians
07:56 PM SpeedEvil: http://www.eyejayinstruments.com/pencils_bamboo_geometric/index.shtml neat
07:56 PM CaptHindsight: I'm on clone #2
07:57 PM CaptHindsight: i got passed the mind transfer by being mindless, no brain, no effect
08:06 PM CaptHindsight: veegee: well DNA is just another polymer
08:07 PM veegee: I know, I studied it in depth
08:07 PM CaptHindsight: started manufacturing mers about 10-15 years ago, mono and ologos
08:07 PM veegee: My goal was to create a highly contagious respiratory virus
08:07 PM CaptHindsight: sort of fell into it since it was easy for me with the background to build all the tech
08:08 PM CaptHindsight: making RNA and broken genes is easy
08:08 PM CaptHindsight: just don't tell anyone
08:08 PM veegee: Ah so you're the one behind MERS
08:08 PM veegee: much respect
08:09 PM veegee: my goal is to wipe out all the low IQ population as well
08:09 PM CaptHindsight: stupid gene splicer
08:09 PM veegee: viral capsids have a wonderful ability to spontaneously assemble
08:10 PM veegee: take a bit from this virus, take bit from that virus and make your own new virus
08:34 PM _unreal_: now I feel like I have at least gotten something done
08:35 PM _unreal_: been working on my new spindle
08:35 PM _unreal_: finished milling a second part the hardest of all of them to build
08:35 PM _unreal_: been drilling/tapping
08:36 PM _unreal_: now that I got the motor/motor mount mounted I can drill from the backside and make some notches so I can put relief's on the bottom of the motor mount for some lower screws
08:37 PM _unreal_: I'm going to have to upgrade the Z motor as well. DAMN this new build is heavy
08:43 PM robotustra: _unreal_, do you have pics?
08:47 PM _unreal_: not yet
08:49 PM _unreal_: robotustra here is a SKP cad drawing https://drive.google.com/file/d/1unJZi6cQep_Ge87ULs1OBjAPKdhAMheC/view?usp=sharing
09:31 PM -!- #linuxcnc mode set to +vv by hitchcock.freenode.net
09:42 PM CaptHindsight: network nutsyness
09:44 PM jymmmm: Weeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
09:49 PM Tom_L: wow
10:15 PM robotustra: I don't have sketchup for linux
10:16 PM XXCoder: boooom banana split
10:34 PM CaptHindsight: I know who broke it again
10:57 PM unterhaus_: I just looked up the roller wheels for our rowing machine and they want $29 each, need 4
10:58 PM unterhaus_: they are like a mini roller blade wheel
10:58 PM XXCoder: got a lathe?
10:58 PM CaptHindsight: what diameter?
10:58 PM unterhaus_: I have tried turning urethane and it's no fun
10:59 PM unterhaus_: I guess I could make them out of hdpe
10:59 PM XXCoder: would work yeah it has enough flex and extremely strong
10:59 PM unterhaus_: I might even have a rod that's the right diameter
11:00 PM CaptHindsight: diameter required is?
11:00 PM unterhaus_: it's about 1 3/8"
11:01 PM unterhaus_: somebody online was saying use a drawer roller 1 1/4", but that's a bit small
11:02 PM CaptHindsight: plain bearings?
11:02 PM CaptHindsight: if so HDPE or a cheap drop of delrin
11:03 PM CaptHindsight: urethane comes in a wide range of hardness
11:03 PM CaptHindsight: soft rubber to rock hard
11:04 PM unterhaus_: this is relatively soft, don't think it has to be that soft
11:04 PM unterhaus_: they are using roller bearings
11:05 PM CaptHindsight: https://www.eplastics.com/ACTBLKROD1-500
11:06 PM CaptHindsight: https://www.mcmaster.com/polyurethane-rod-stock/abrasion-resistant-polyurethane-rubber-rods/
11:07 PM CaptHindsight: https://psiurethanes.com/cast-polyurethane-rods/
11:08 PM CaptHindsight: https://www.vxb.com/8mm-Bore-Bearing-with-1-1-2-inch-Black-Tire-p/1-5INCH-WHEEL-WITH-BEARING.htm
11:08 PM CaptHindsight: $4 ^^
11:08 PM CaptHindsight: https://www.vxb.com/Bearing-with-a-Tire-s/368.htm many similar for cheap
11:09 PM XXCoder: fancy
11:11 PM unterhaus_: bearing with tire is a good search term
11:11 PM unterhaus_: have to see what the bore is, I think it might be 10mm
11:12 PM unterhaus_: https://www.vxb.com/10mm-Bore-Bearing-with-36mm-White-POM-Tire-Bearing-p/10x36tire-white.htm
11:12 PM _unreal_: freaking hell
11:12 PM unterhaus_: might have to shape the tire
11:25 PM gloops: freeze it before turning
11:25 PM XXCoder: buy few spares to learn on turning it
11:37 PM _unreal_: you mean a few practice rounds to fuck up :)
11:38 PM CaptHindsight: we used to trim our skateboard wheels with a drill and sand paper
11:49 PM pink_vampire: hi
11:49 PM XXCoder: hey
11:49 PM XXCoder: hows your machine so far? fixing it yet?