#linuxcnc Logs

Apr 03 2021

01:02 AM Deejay: moin
02:40 AM veegee: I was thinking of using an aluminum air tank: https://www.amazon.ca/California-Air-Tools-AUX10A-10-Lightweight/dp/B01G75OVII
02:40 AM XXCoder: yeah if you use only few liters a time it should be enough since it can refill slowly
02:40 AM veegee: Well the average pressure and flow is sufficient. But there are intermittent drops and that's enough to starve the pump. Also I have a lot of valves and that causes a pressure drop
02:41 AM veegee: So the pressure needs to be increased for sure. 100 PSI should be plenty
02:42 AM veegee: The pump is great, it's just a standard RV water pump, albeit the high pressure model
02:43 AM XXCoder: nice
02:43 AM veegee: Auto shutoff and everything. So I just need to make 3 connections and I'm good to go
02:45 AM veegee: I guess $150 isn't a bad price to pay for a 20L. I'll probably go for the 40L for $250. My pressure washer does 14L/min
02:46 AM veegee: at 4,500 PSI and 100ºC hot water
02:48 AM veegee: god damn garden hose thread. Most ridiculous thread. Yet another retarded american invention
02:48 AM XXCoder: lol yeah
02:49 AM veegee: Need to buy a bunch of GHT to NPT adapters so I can use proper ball valves that doesn't restrict flow
02:49 AM veegee: the cheap inline GHT valves have a orifice that's about 1/4" like wtf
02:49 AM veegee: that wrecks your flow so bad
02:50 AM veegee: OHHHh I just realized I have the old natural gas hot water heater tank from my parents' house
02:50 AM veegee: I don't know what material it's made from though
02:51 AM XXCoder: if its made to hold water, its fine for water id hazard a guess
02:51 AM XXCoder: what pressure is normal house water system at anyway
03:28 AM XXCoder: making of GIANT wood lock https://youtu.be/22JAyie8YhE
04:26 AM Tom_L: morning
04:31 AM HexaCube: By the way, des someone know of uh... well, "hobby grade" headstocks one could buy? I saw I can get chinese 'cartridges' but perhaps there's something inbetween those and spending several grand on a "commercial" one?
04:32 AM XXCoder: yo
04:38 AM Tom_L: know where the 2.8 changeds list is?
04:39 AM Tom_L: it was a long list...
05:50 AM JT-Cave: morning
07:23 AM Tom_L: 75F today
07:32 AM JT-Cave: 32°F now and my hose is frozen a bit... 64°F and sunny this afternoon
09:58 AM roycroft: another person wants to look at the jointer, but he's driving down from portland, so likely not a lookey-loo
10:22 AM * JT-Shop heads back to the golf course to replace an output card on the 29 year old PLC
12:11 PM drdoc: I swear this is a real weather site headline:
12:11 PM drdoc: Scientists Detect X-Rays Coming From Uranus
12:14 PM roycroft: that's kind of cool, actually
12:15 PM drdoc: it is, but it sent my inner 12-year-old into fits
12:15 PM roycroft: two virtual machines moved, one to go
12:15 PM * roycroft will finish work on time today
12:16 PM drdoc: ESXi?
12:17 PM roycroft: yes
12:17 PM roycroft: and we don't have a commercial license, so it's the free version
12:17 PM roycroft: which means i can't copy a vm from one esxi host to another
12:17 PM drdoc: right
12:17 PM roycroft: i have to copy from esxi to a proxmox host, and then from proxmox to the other esxi
12:18 PM roycroft: good thing i have the proxmox machine in that network segment
12:18 PM roycroft: the vms i'm moving are mail servers, so i can't do it during business hours
12:18 PM roycroft: i should actually do it in the middle of the night, but i'm too old for that stuff these days
12:19 PM roycroft: it's a holiday weekend - people should not be checking email
12:19 PM roycroft: they should be enjoying life
12:19 PM roycroft: so i'm doing it early on a saturday morning
12:19 PM roycroft: and the one that is left is just a webmail machine
12:19 PM roycroft: all the smtp/imap servers are moved already
12:19 PM drdoc: When ESX was first released, one of our customers wanted some custom training courses, and wanted me to get certified before writing them
12:20 PM roycroft: esxi is pretty nice, and i was happy using it for years, even though we only had the free version
12:20 PM roycroft: but proxmox pve is much nicer
12:20 PM drdoc: my boss was certain it was a waste of time and money
12:21 PM drdoc: "people spend $20 grand on machines stout enough to do their jobs. They'll never spend some more cutting them into little pieces"
12:21 PM roycroft: virtualization has revolutionized the it industry
12:21 PM drdoc: oh, dude
12:22 PM roycroft: and i should note that ibm were doing virtualization on their mainframes back in the '60s
12:22 PM roycroft: os/360 was one of the first hypervisors
12:22 PM drdoc: I had been using Workstation and wine for years then, and yeah - my boss was a True Blue IBM partner
12:22 PM roycroft: sure, it was batch-oriented, and not a threaded hypervisor
12:23 PM drdoc: RS/6000 instead of mainframes, but still
12:23 PM roycroft: but it still did the chopping thing that he thinks will never catch on
12:23 PM drdoc: yep
12:23 PM drdoc: my original cerification # was 4 digits
12:23 PM drdoc: certification
12:24 PM drdoc: I haven't tried proxmox
12:24 PM roycroft: it's nice
12:24 PM drdoc: I hear it's very capable
12:24 PM roycroft: it's built on debian, and supports booting zfs
12:25 PM drdoc: ooooh
12:25 PM roycroft: what i like about it is that when you log into the hypervisor you get a normal shell
12:25 PM roycroft: not a vmware weird, limited shell
12:25 PM roycroft: you get bach or csh or whatever you like
12:25 PM roycroft: bash
12:25 PM drdoc: that's huge
12:25 PM roycroft: and the free version lets one cluster
12:25 PM roycroft: with shared storage
12:26 PM roycroft: that costs a lot of money with vmware
12:26 PM drdoc: yes
12:26 PM roycroft: it will even auto load balance if you need to
12:26 PM roycroft: so if a hypervisor gets really busy, it will quietly move vms to other nodes in the background, with zero downtime
12:26 PM drdoc: and honestly, it's easier to get decent shared performance on zfs than on vmhfs
12:26 PM roycroft: yup
12:27 PM roycroft: i had almost completely converted to proxmox when we shut down the data center
12:27 PM drdoc: I'll have to look at it
12:27 PM roycroft: i only have a couple esxi servers left, one of which is being decommissioned right now
12:27 PM roycroft: as soon as this last vm moves off of it
12:28 PM roycroft: and btw, i don't number brag much, but i have a six digit rei member number
12:28 PM roycroft: it freaks out the folks in the store every time
12:28 PM drdoc: lol
12:28 PM roycroft: because they say it's not long enough
12:28 PM drdoc: right
12:28 PM roycroft: but i've been a member since 1972
12:28 PM drdoc: thereby proving you're an oregonian
12:28 PM roycroft: i have some it number brags
12:28 PM roycroft: but i don't brag about them
12:28 PM roycroft: i'm more proud of the rei number :)
12:29 PM roycroft: and i was living in chicago when i joined rei
12:29 PM drdoc: heh
12:29 PM roycroft: but i was an oregonian in my heart then
12:29 PM drdoc: yeah, but look where you ended up
12:29 PM roycroft: it just took me a while to come home
12:29 PM * JT-Shop made the golf course maintenance supervisor very happy today and sold an old PLC card
12:29 PM drdoc: hey, would you look at an auction & comment?
12:30 PM drdoc: https://www.ebay.com/itm/353402778009
12:30 PM drdoc: I've dealt with these guys before; they're straight but sometimes their prices are nuts
12:31 PM roycroft: i don't know the vendor, nor do i have a good enough sense of the value of those rails to want to comment
12:31 PM drdoc: I know the vendor, but not the value
12:32 PM roycroft: i'm sure plenty of other folks here will have an opinion, and some of them may even be valid
12:32 PM drdoc: lol
12:32 PM drdoc: speaking of vendors, zyltech.com has 20% off this weekend
12:32 PM roycroft: i think i'm going to start on what should be a fun project today
12:32 PM roycroft: i've wanted to build a metal storage rack to sit outside my fabrication shop for years, but never wanted to spend any money on materials
12:33 PM drdoc: they're mostly 3D-printing oriented but they're decent quality
12:33 PM roycroft: i was given the ladder rack and other overhead infrastructure from the data center i just demoed
12:33 PM roycroft: and that will make a nice little metal rack
12:33 PM drdoc: right on
12:33 PM roycroft: i don't have a ton of metal to store (literally - maybe half a ton on a good day)
12:34 PM roycroft: so i think ladder rack will work fine
12:34 PM JT-Shop: 99.8% positive feedback and 30 day returns... that's a good sign
12:34 PM roycroft: it's all powder coated, so other than the weld spots it won't rust for a while
12:34 PM roycroft: and i'll shoot some cold galvanizing spray on the welds
12:34 PM drdoc: I answered a craigslist ad a few months ago for 2 sets of that uline "boltless" shelving - keyholed uprights
12:34 PM roycroft: nice
12:34 PM roycroft: ack
12:34 PM drdoc: $95 for a 7' and a 6'
12:35 PM roycroft: i promised the jointer guy a printed and bound owner's manual
12:35 PM drdoc: oops
12:35 PM roycroft: i had better go make one while this image is copying
12:35 PM drdoc: ok
12:35 PM roycroft: he'll be here in an hour and a half
12:35 PM * roycroft heads over to the printer room
12:46 PM * JT-Shop wanders inside for a nap
12:51 PM roycroft: well that's done, and the last vm is ready to start up
12:51 PM drdoc: cool
12:51 PM roycroft: i'm going to get off of work early, i think!
12:51 PM drdoc: so those shelves ended up being a pile of pieces
12:51 PM roycroft: a kit!
12:52 PM drdoc: I have 4 set up and enough horizontals and plywood to do at least 4 more
12:52 PM drdoc: mostly brand new
12:52 PM drdoc: best score of 2020
12:53 PM roycroft: after i get this metal rack built my next big task is selling my pile of old vw engines
12:53 PM drdoc: heh
12:53 PM drdoc: find a '70s Moto Guzzi
12:53 PM roycroft: i have a shelving unit inside my fabrication shop
12:53 PM drdoc: it'll fit
12:53 PM roycroft: the top shelf holds some of my metal stock
12:53 PM roycroft: below are all the vw engine parts
12:53 PM roycroft: i want that whole unit to go away
12:54 PM drdoc: bugs are big, as always
12:54 PM drdoc: that ought not be hard
12:56 PM roycroft: they're all for vw buses, actually
12:56 PM roycroft: and it won't be hard to get rid of the stuff in eugene
12:56 PM drdoc: nope
12:56 PM roycroft: i see air-cooled vw buses driving around town every single day, even during pandemic times
12:57 PM roycroft: i have about 4-5 engines worth of parts
12:57 PM drdoc: nice
12:57 PM roycroft: $150 for the whole lot and it should go away immediately
12:57 PM drdoc: I bet $450 and it's gone by Friday
12:58 PM roycroft: probably
12:58 PM roycroft: i'll figure out the price when the time comes
12:59 PM roycroft: when i'm ready to sell i want to pile everything up in my driveway, take pics, post them, and not move the stuff until it sells
12:59 PM roycroft: so it will be a low price
12:59 PM roycroft: i only want to move it once
12:59 PM drdoc: soemtimes that's key
12:59 PM drdoc: I think I'm going to lowball this:
12:59 PM drdoc: https://www.ebay.com/itm/164727694352
01:00 PM roycroft: i really don't know anything about linear rails
01:00 PM roycroft: if i ever build a cnc router i'll learn about them
01:01 PM drdoc: that's ready-made for a pet project
01:01 PM drdoc: OK
01:02 PM drdoc: I need to stop window shopping and do some work
01:10 PM roycroft: yay
01:10 PM roycroft: i just sent my boss an email using webmail, so that server is working
01:11 PM * roycroft is done with work for the day
01:11 PM roycroft: an hour early
02:08 PM roycroft: some guy really wants my jointer and said he'd give me $50 extra if he could come over and get it right now before the other guy shows up
02:08 PM roycroft: i'm like "dude, the guy is driving down from portalnd. i'm not going to turn him away when he gets here"
02:09 PM roycroft: that would be bad karma
02:09 PM roycroft: besides being extremely rude
02:09 PM roycroft: i'm assuming a bunch of folks got paid yesterday, since there's a ton of interest all of a sudden
02:39 PM Rab: <roycroft> so another cop has been murdered by the supporters of the "law and order" president
02:39 PM Rab: That didn't age too well.
02:40 PM Rab: My assumption is TBI, since he was a football player.
02:44 PM roycroft: yeah, i was wrong about that, it seems, but that's good
02:44 PM roycroft: it appears he was just crazy, not maga crazy in particular
02:45 PM roycroft: it's sad that it's so easy to reach my original presumption, though
02:45 PM roycroft: hopefully that will change as the recent nightmare fades away
02:48 PM drdoc: hey Rab!
02:50 PM drdoc: roycroft: I hate it when people do that
02:51 PM drdoc: I usually won't sell to them at all
02:52 PM roycroft: i follow a strict protocol
02:52 PM drdoc: do tell
02:52 PM roycroft: whoever sets the appointment first gets the first viewing
02:52 PM drdoc: yup
02:52 PM roycroft: it doesn't matter if you contact me first
02:53 PM roycroft: or if you can show up first
02:53 PM drdoc: yup
02:53 PM roycroft: that is the most fair way to handle things, in my view
02:53 PM drdoc: but if you're an hour late you've lost your slot
02:53 PM roycroft: yes
02:53 PM drdoc: 20 minutes if it's a meet
02:53 PM roycroft: and if you want to see it next week that is not an appointment
02:53 PM drdoc: ^^^^^
02:54 PM roycroft: i'll ususually schedule a day or two out
02:54 PM roycroft: or set a tentative appointment futher out, with the proviso that it can be pre-empted by someone who is able to come earlier
02:54 PM drdoc: I sold a workstation to a guy recently who asked me a total of 11 questions about it
02:54 PM drdoc: one question per email
02:54 PM roycroft: it would be nice if they can consolidate questions
02:55 PM roycroft: but i don't mind answering them
02:55 PM drdoc: me either
02:55 PM drdoc: but I had decided he was yanking my chain
02:55 PM roycroft: the guy yesterday who wanted me to teach him how to use a jointer but showed no interest in buying it was a different story
02:55 PM drdoc: then when he did show up, he ran up to the door and told me he forgot to get cash and would be back in 20 minutes
02:56 PM roycroft: i had a guy do that last summer
02:56 PM roycroft: he showed up again 3 hours later
02:56 PM roycroft: he got lost on his way to the atm
02:56 PM drdoc: he did, though, to my surprise
02:56 PM roycroft: anyway, the guy from portland just called
02:57 PM roycroft: he's in eugene, walking his dog, so he'll be here in a minute
02:57 PM drdoc: I *always* tell them "you want to see it do something, test something, ask a question, do it now. When you clear the end of the driveway I never heard of you or saw this thing."
02:58 PM drdoc: good luck with the sale
03:18 PM roycroft: well that was nice
03:19 PM roycroft: "this is exactly what i was looking for. how did you possibly keep the bed that nice for 20 years?"
03:41 PM Rab: drdoc, that linear slide is sold by an outfit local to here: https://www.dougdeals.com/
03:42 PM XXCoder: "we will be closed feb15-21 due to winter storm":
03:43 PM Rab: I've been to their warehouse a couple of times. They have a very diverse selection of industrial products, generally well tested and in good condition. Their prices are usually pretty high, and that slide is unusually cheap.
03:44 PM Rab: I spy a little rust on the guides, but that's a nice piece of hardware if it's in usable condition.
03:45 PM roycroft: xxcoder: i called a place a couple weeks ago that still had its closed for easter holiday message on the voicemail from last year
03:46 PM XXCoder: lol
03:46 PM XXCoder: they need someone to do little things like that
03:49 PM roycroft: my metal storage rack is going to be really nice, but i have to grind off the powder coat to weld on it, and telect apply really good, thick powdercoat
03:49 PM roycroft: this is not going to be anything resembling fun
05:04 PM unterhaus_: roycroft, you can powder coat at home?
05:29 PM _unreal_: hello
05:29 PM _unreal_: got a lot done on the laser etcher tent
05:30 PM _unreal_: I'll take a photo in a while
05:30 PM _unreal_: the tent is well built IMO
05:30 PM _unreal_: more like a smoke and laser safety box
05:52 PM roycroft: theoretically, unterhaus_, but that's not what i'm talking about
05:52 PM roycroft: i have a powder coating gun, but i don't have an oven
05:52 PM roycroft: well, i do, but not one that i'd use for powder coat baking
05:53 PM roycroft: i just need to grind away the powder coat to expose bare metal so i can weld, then i'll hit the welds with cold galvanizing spray
06:00 PM roycroft: or this brilliant idea - i might just bolt it together and not bother with the grinding and welding at all
06:00 PM roycroft: i think i can brace it well enough to be plenty sturdy
06:13 PM JT-Cave: you can use an infrared heater to powder coat
06:14 PM Tom_L: what did you do for a power source? buy a commercial gun?
06:19 PM drdoc: Rab: I know, they used to be up on East Braker
06:19 PM drdoc: they used to let me cherry-pick the warehouse
06:20 PM drdoc: the GM throws a hissy fit when they get come-backs, so they're damned careful about accurate listings
06:37 PM roycroft: i love it when a plan comes together nicely
06:38 PM roycroft: i just found a box of ss bolts and a box of ss lock washers that are the exact size i need for this project
06:38 PM roycroft: so it will be a bolt-up!
06:39 PM roycroft: moreso than the grinding of the powdercoat, i was dreading the burning of even more of it while welding
06:39 PM roycroft: but all that is moot
06:39 PM roycroft: now i get to drill and tap a buttload of holes, but oh well
10:37 PM roycroft: *chuckle*
10:37 PM roycroft: the other day someone here was talking about buying some machinist's jacks and i said that real machinists make their own jacks
10:38 PM Tom_L: yeah i was in on that discussion
10:38 PM roycroft: on tonight's sns, abom79 is making a pattern for some machinst's jack bodies that he is having cast
10:38 PM Tom_L: we found those short starett jacks
10:38 PM roycroft: he's making short ones
10:39 PM roycroft: the kind he likes are too tall
10:39 PM Tom_L: 1.5" iirc
10:39 PM Tom_L: the tall ones were 2" ?
10:40 PM roycroft: he seems to be making the pattern the finished size though
10:40 PM roycroft: which isn't going to work
10:40 PM Tom_L: https://www.starrett.com/metrology/product-detail/S191
10:42 PM roycroft: the jacks he likes were made by armstrong
10:42 PM Tom_L: https://www.amazon.com/Starrett-190A-Little-Giant-SE50681/dp/B08M8X32WV
10:42 PM Tom_L: i've got that one
10:42 PM roycroft: those are nice jacks
10:42 PM roycroft: i've looked at them before
10:42 PM Tom_L: with 2 extensions
10:42 PM roycroft: i have some cheap, crappy ones, and want to get better ones some day
10:44 PM Tom_L: i think we found chinese counterparts for both of those too
10:48 PM roycroft: abom put a 2 degree draft on the pattern, so he does know something about casting
10:49 PM roycroft: but he still made it 100% finished size
10:49 PM roycroft: he apparently does not know about shrinkage
10:49 PM roycroft: perhaps he needs to have a conversation with george castanza
10:49 PM Tom_L: naw, he'll figure it out
10:50 PM Tom_L: i need to find my tapered cutter
10:50 PM Tom_L: i forget what angle it was but that's what it was for so it's likely 2-3 deg
10:52 PM Tom_L: and the hydroblocks were angled just the opposite direction
10:52 PM Tom_L: i think my bud had that cutter
10:52 PM roycroft: he did want the new jacks to be smaller than the originals
10:52 PM roycroft: so he may not care about shrinkage
10:53 PM Tom_L: doesn't matter on something like that
10:54 PM roycroft: not very much
10:54 PM roycroft: since he'll still need to machine features into the casting
11:05 PM Tom_L: shows how bad my memory is: http://tom-itx.no-ip.biz:81/~webpage/cnc/cutters/15_deg_cutter.jpg
11:06 PM Tom_L: i know the hydroblocks used about a 2-3 deg springback cut
11:06 PM Tom_L: that one i used on a cast iron casting