#linuxcnc Logs

Jul 27 2021

#linuxcnc Calendar

02:02 AM randy: morning
03:31 AM Deejay: moin
03:39 AM TurBoss: morning
03:50 AM Vq: morning Boss
03:56 AM TurBoss: hello Vq
04:23 AM Tom_L: morning
05:26 AM JT-Cave: morning
08:01 AM solarwind: There's a wasp nest outside my door
08:02 AM solarwind: Would a dust collector near the entrance be a good way to "evacuate" it slowly and safely?
08:03 AM solarwind: The only thing is, I'd need to find a way to prop the hose near the nest without getting close. I'm allergic, so I'll die if I get stung. I have an epi pen on me, but it's still very dangerous
08:05 AM solarwind: Like if I cant administer it myself after getting stung. The wife is at work so there's no one around to stand by
08:10 AM solarwind: I'm also getting on in age, so maybe it might be better to call an exterminator
08:22 AM enleth: solarwind: just call someone
08:23 AM enleth: solarwind: see if firefighters respond to wasp calls where you live, they do in some countries/areas
08:24 AM enleth: "right outside my door" and "allergic" is just the right combination over here to have them come and take care of the nest completely free of charge
08:24 AM enleth: as there's clearly someone's life in immediate danger
08:26 AM enleth: (they won't if it's "there's a nest in my back yard and I can't use my swimming pool")
08:29 AM enleth: solarwind: also, those little buzzing fucks can survive a trip down the vacuum cleaner hose
08:29 AM enleth: worst case, you end up with a vacuum cleaner full of slightly injured and extremely pissed off wasps
08:35 AM JavaBean: would a shopvac with a bunch of 'chips' help with the "slightly injured and extremely pissed off" part?
08:40 AM enleth: JavaBean: if you set it on fire, maybe
08:41 AM enleth: or finish off with sucking it water until it's full
08:42 AM enleth: some insects are surprisingly hard to kill unless you throughoutly drown them, crush them really flat or poison them
08:42 AM enleth: wasps are among the sturdiest ones
08:44 AM solarwind: enleth wow I did not know that, I will definitely call them. Thank you very much!
08:45 AM enleth: solarwind: I have no idea if that's as thing in your country, you'll have to check
08:45 AM perry_j1987: morning
08:46 AM solarwind: I'm in a rural area in Canada, chances are good that they'll help just because everyone around here is quite supportive
08:46 AM solarwind: The only downside is Internet access is always slow in rural areas
08:47 AM solarwind: Well that and no one within earshot to hear you scream for help if you're stuck in a life threatening situation
08:48 AM enleth: solarwind: https://www.canada.ca/en/health-canada/services/pest-control-tips/wasps.html has no mention of any public service doing this
08:48 AM enleth: but try calling them anyway
08:48 AM enleth: worst case they'll give you contact info of a local exterminator
08:48 AM perry_j1987: solarwind get yourself that spaceX starlink
08:49 AM solarwind: Yeah that's what I'll do. They'll likely help just because the community is pretty tight and everyone knows each other
08:50 AM solarwind: perry_j1987 is that even up and running?
08:50 AM perry_j1987: yup
08:50 AM perry_j1987: i know several people who got it
08:50 AM perry_j1987: my bro in montana and a buddy in southern wisconsin personally have it
08:51 AM enleth: someone here definitely had it and bragged about their internet getting 1000x better than it was at 1/3 the price of some shitty satlink stuck in the 90s
08:52 AM perry_j1987: i'd love to have starlink and a nice little mountain cabin and workshop heh
08:52 AM perry_j1987: by a river
08:53 AM solarwind: Ok I'm definitely going to check that out
08:53 AM Vq: You'd need stable power to run it though.
08:53 AM solarwind: That's not a problem, I have a big battery bank, backup generators, double conversion UPS
08:54 AM solarwind: And 3 phase power coming from a device I built myself that's kind of like a VFD
08:55 AM Vq: It sounds like you're prepared for anything but wasps.
08:56 AM solarwind: It's more or less a standard renewable energy systems for many people around these parts
08:56 AM solarwind: It's essentially an off-grid setup, even though the homestead has standard single phase 240V coming in
08:57 AM solarwind: But it'll easily work off grid if that goes down in winter or something and maintenance can't fix it for a few days.
08:59 AM solarwind: The battery bank is lead acid though, so it's used only when needed and cycled once a week just to keep the electrolyte from stratifying. Very reliable cells.
09:02 AM perry_j1987: sounds real nice
09:37 AM CloudEvil: Starlink is becoming a viable option if they'll ship you one.It is 100W power draw though which is quite annoying if you're not on grid power
09:46 AM CloudEvil: Hmm.The installed devices - some half a million at 50MW, burn the equivalent of a couple of kilos of kerosene a second. 200 tons a day. This is what one launch uses in 12 hours.
10:31 AM skunkworks: CloudEvil: parents have starlink.. It is awesome
02:13 PM CaptHindsight[m]: how many MW used per day world wide recharging smartphones?
02:19 PM CaptHindsight[m]: https://www.zdnet.com/article/heres-how-much-it-costs-to-charge-a-smartphone-for-a-year/
02:19 PM CaptHindsight[m]: https://www.bankmycell.com/blog/how-many-phones-are-in-the-world
02:23 PM CaptHindsight[m]: 19.2 Wh per day x 4,880,000,000 = 93,696 MWh per day
02:27 PM CaptHindsight[m]: 4G cellsites use around 6 kilowatts for power, assuming a three-sector, 12 radio set-up
02:27 PM CaptHindsight[m]: approximately 6 million 4G base stations worldwide
02:28 PM Tom_L: compared to land lines...
02:28 PM CaptHindsight[m]: 864,000,000,000 Wh per day
02:29 PM CaptHindsight[m]: 864,000MWh /day
02:29 PM hazzy[m]: That's a lot of power
02:29 PM CaptHindsight[m]: yup
02:33 PM CaptHindsight[m]: $40,996,800,000 / year at $0.13/kwh
02:34 PM CaptHindsight[m]: so ~$10/year per person/phone per year just for the cost of power for the base stations
02:37 PM CaptHindsight[m]: and ~ $1.10 per year per phone to charge the phones
02:43 PM CaptHindsight[m]: https://www.bbcmag.com/rural-broadband/5g-is-not-the-answer-for-rural-broadband
02:43 PM CaptHindsight[m]: A small tower and 5G cell site costs $30,000–$50,000
02:44 PM CaptHindsight[m]: so avg $40k
02:45 PM CaptHindsight[m]: $40k x 6 million sites = $240,000,000,000
02:47 PM roguish[m]: it's just money...................
02:47 PM perry_j1987: o/
02:47 PM CaptHindsight[m]: and 10 year life before 6G
02:47 PM perry_j1987: hows it going
02:50 PM CaptHindsight[m]: vs Starlink https://www.nextbigfuture.com/2019/12/spacex-starlink-satellites-cost-well-below-500000-each-and-falcon-9-launches-less-than-30-million.html
02:54 PM CaptHindsight[m]: 1 watt is equal to 859.84522785899 calories per hour
02:55 PM CaptHindsight[m]: so if you can find a way to convert body fat to electricity at 50% efficiency....
02:56 PM CaptHindsight[m]: 19.2 Wh per day for an avg cell phone to charge
02:57 PM CaptHindsight[m]: ~4000 calories per lb of fat
03:01 PM roguish[m]: modest jog = 100 cal/mil
03:01 PM roguish[m]: modest biking = 50 cal/mile
03:02 PM roguish[m]: just burned 1100 cycling....
03:02 PM JT-Shop: too damn hot to ride here
03:03 PM roguish[m]: what ya got? 100+ ?
03:03 PM roguish[m]: low 80's here. kinda nice.
03:03 PM JT-Shop: 93F 62%
03:03 PM JT-Shop: geeze send me some
03:03 PM roguish[m]: that's sticky
03:04 PM JT-Shop: and hot
03:04 PM JT-Shop: 97 thursday
03:04 PM CaptHindsight[m]: cools off here by Thursday
03:04 PM roguish[m]: we're supposed to go mid 90's soon. for at last a week or so.
03:04 PM CaptHindsight[m]: back to only 80F ish
03:05 PM CaptHindsight[m]: we are only about a 10 day cycle, mid 90's to 70's
03:06 PM CaptHindsight[m]: are they planning on Starlink going mobile for remote hand helds?
03:06 PM roguish[m]: I ordered a set of Shar's R8 collets. due in a week.
03:07 PM CaptHindsight[m]: "Elon Musk says Starlink internet service should be ‘fully mobile’ by the end of this year"
03:08 PM CaptHindsight[m]: roguish[m]: they are OK
03:08 PM CaptHindsight[m]: the problem with Shars is their quality control
03:09 PM Roguish: hope so. i'll see
03:09 PM CaptHindsight[m]: I once got some adapter that was off by mm's
03:09 PM CaptHindsight[m]: they swapped it, but they are local for me
03:10 PM CaptHindsight[m]: I need a cheap live center that will be abused, so I'll get a Shars
03:12 PM roycroft: blah
03:12 PM roycroft: order of operations issues suck sometimes
05:13 PM perry_j1987: playing with my first canned cycle on the lathe
05:13 PM perry_j1987: sure is handy heh
05:13 PM perry_j1987: got batch of parts i have to drill out some holes bigger on
05:22 PM CaptHindsight[m]: ever notice how much bad info is available on forums and youtube howto videos, lots of I don't notice what I am doing wrong/bad/not to spec so it must be working/ok/good
05:23 PM JT-Shop: perry_j1987, I do 90% of my ops on the lathe using ngcgui
05:24 PM JT-Shop: https://gnipsel.com/shop/hardinge/hardinge.xhtml
06:01 PM roycroft: jt-shop: did you see the pics of my lamp project?
06:02 PM JT-Shop: no
06:02 PM roycroft: ok, the caveats first
06:03 PM roycroft: this is a prototype, mainly for determining dimensions and form, and is in no way saleable or anything remotely like that
06:03 PM roycroft: https://roycroft.us/Andon
06:03 PM roycroft: the last picture is an example of a kumiko panel that i would line with ricepaper and insert into the lamp frame
06:04 PM roycroft: i spent zero time trying to select for a harmonious grain flow or anything - it's just scrap wood used to mock up a lamp frame
06:04 PM JT-Shop: that's some complicated jointery for sure, looks real good even for a prototype
06:04 PM XXCoder: indeed
06:05 PM roycroft: i'm working out a lot of processes to do it efficiently
06:05 PM roycroft: and the dimensions are not what i want
06:05 PM JT-Shop: I see what you meant the other day about the fiddly joints
06:05 PM roycroft: but i'm going to put some kumiko panels in it and light it up anyway - i'll get a much better send of dimension when id o that
06:05 PM roycroft: they weren't too hard to do once i figured out the setups
06:06 PM roycroft: i've some other issues to sort out - i'll show you what i'm talking about when i get the next step done
06:07 PM roycroft: i may end up throwing away most of the procedures i've developed so far :)
06:08 PM roycroft: i'll never throw away what i've learned from the build, of course
06:09 PM JT-Shop: I just need to glue on the trim on the shelf end of the carcass and I'm ready to ponder material and methods for building drawers
06:10 PM roycroft: i'm a big fan of finger joints for shop fixture drawers
06:11 PM roycroft: but i have that nice incra jig that makes them trivial to cut
06:11 PM roycroft: and i actually mostly make the finger joints on the fronts
06:11 PM roycroft: the backs are usually just dadoed in and then stapled from the drawer side
06:11 PM JT-Shop: I can cut finger joints with my jig but no like the incra as mine are all the same
06:12 PM roycroft: for a sawstop cabinet i'm sure that will be fine
06:12 PM JT-Shop: dado a bit back from the end of the drawer and short so the bottom slides in from the back?
06:14 PM JT-Shop: I guess I'll use some of the thinner red oak for the drawer parts and some 1/4" baltic birch for the bottom... gotta see what I have
06:15 PM JT-Shop: for plywood
06:15 PM JT-Shop: even though this is a sawstop cabinet it's a learning experience for me
06:16 PM roycroft: yes
06:16 PM roycroft: i just snapped some pics of the cabinet i just finished
06:16 PM roycroft: one moment
06:17 PM JT-Shop: k
06:24 PM roycroft: https://roycroft.us/Sander-Cabinet
06:25 PM roycroft: there are some details of the drawers there
06:25 PM roycroft: i'm even showing off my mistakes :)
06:25 PM XXCoder: thats awesome
06:26 PM JT-Shop: drawers made with 1/2" baltic birch?
06:26 PM roycroft: yes
06:26 PM roycroft: the fronts are 3/4" bb
06:27 PM roycroft: the bottoms of the upper drawers are 1/4" bb, but the bottoms of the lower ones are 1/2" bb, with inserts to index the tools
06:27 PM JT-Shop: nice
06:27 PM roycroft: thanks
06:27 PM JT-Shop: rabbit food time here
06:27 PM roycroft: i have a meeting in a few, so i have to get out of here
06:27 PM roycroft: but those are pretty simple drawers to make
06:27 PM roycroft: and they should last a very long time
07:32 PM perry_j1987: wooo hoo
07:32 PM perry_j1987: testbar for the lathe installed
07:32 PM perry_j1987: now for the fun to begin
07:36 PM perry_j1987: and now... the wrench is missing
07:36 PM XXCoder: always as soon as you need it
07:37 PM perry_j1987: ive litterally never moved this wrench away from the lathe before...
07:37 PM perry_j1987: lol
07:37 PM Tom_L: until now
07:37 PM XXCoder: it grew legs
07:38 PM perry_j1987: its cause i finally got a way to dial this machine in once and for all
07:38 PM perry_j1987: *mumbles something about the universe... lol
07:40 PM perry_j1987: well jokes in the universe.. igot more than one 14mm wrench heh
07:47 PM XXCoder: lol
07:56 PM perry_j1987: wow
07:56 PM perry_j1987: this 9x20 spindle runout looks like slightly under half thou
07:57 PM perry_j1987: 1 tick over at the end of the test bar
07:58 PM CloudEvil: is it of the class of machine that that's a good, or a bad wow?
07:59 PM Tom_L: measure the spindle taper not the bar
07:59 PM CloudEvil: Also that
08:00 PM perry_j1987: aye just suprised at the reading on the bar itself heh
08:01 PM perry_j1987: it appears like i got it set with impercevable movement of the needle from one end to the other now
08:01 PM Tom_L: good
08:02 PM perry_j1987: best dial i have in the building is a mitutoyo 2417
08:05 PM Tom_L: last word indicator might be a better choice but i'm sure the mitutoyo is close
08:06 PM perry_j1987: its far better now than the lathe was lastnight heh
08:07 PM Tom_L: https://www.amazon.com/Starrett-711HSAZ-Indicator-Attachments-Graduation/dp/B0006J4PWE
08:07 PM Tom_L: i generally use a similar indicator for stuff like that
08:08 PM perry_j1987: ya that would be nice
08:08 PM perry_j1987: how far away do you live? :P
08:08 PM Tom_L: right next door to my neighbor
08:10 PM Tom_L: https://www.ebay.com/itm/274680285217?hash=item3ff4388821:g:2kEAAOSwMb5gJZQm
08:10 PM Tom_L: mine is a mitutoyo, may be that model or not, i'm not sure
08:14 PM perry_j1987: ok
08:16 PM Tom_L: if you're gonna do alot of lathe stuff you may want one
08:19 PM perry_j1987: this 3 jaw that came with the lathe, got an old endmill chucked in it and looks like right up next to the jaws its 4 thou runout
08:40 PM perry_j1987: haha there was some guk on one of the jaws
08:40 PM perry_j1987: thats much better.... man.. this thing really needs gone over haha
08:42 PM perry_j1987: now its right around a thou runout
08:50 PM perry_j1987: need to order a couple new gas struts for the door so i can put it back on the lathe
08:50 PM perry_j1987: then setup flood coolant
08:52 PM Tom_L: how enclosed is it?
08:54 PM perry_j1987: fully
08:54 PM perry_j1987: techno isel lathe
08:56 PM Tom_L: small one
08:57 PM Tom_L: looks like similar size to mine but i bet mine is alot older
08:57 PM Tom_L: and tired
08:57 PM perry_j1987: 9x20
08:58 PM Tom_L: what size chuck?
08:58 PM Tom_L: looks like a nice little lathe
08:59 PM perry_j1987: im going to order a pneumatic 5c chuck for it
08:59 PM perry_j1987: but now its got a 4 in 3jaw
10:20 PM roycroft: so as somewhat anticipated, after i replaced the drive gear and gear housing in my garage door opener, i actuated it, and the worm gear immediately shattered into tiny bits
10:20 PM roycroft: i'm done investing in this one now
10:21 PM Tom_L: yeah i've changed the worm gear and cover and gave up on mine
10:22 PM roycroft: now the decision is whether to get a cheap one that's not rated for a non-sectional door, or pay 2.5 as much to get one that's rated for my door
10:22 PM roycroft: if the first option would likely buy me a year i'm fine with that
10:23 PM roycroft: it would motivate me to frame in the garage door opening
10:24 PM roycroft: but if it is going to break in a week i'm not so interested
10:30 PM Tom_L: do those use a spring?
10:34 PM CloudEvil: Or B) get a machine tool that can make a new worm
10:34 PM Tom_L: chamerlain instructions include 1 piece doors with rail or pivot
10:35 PM Tom_L: you may not have enough head room
10:37 PM -!- #linuxcnc mode set to +v by ChanServ
10:37 PM Tom_itx: http://embed.widencdn.net/pdf/plus/cgi/qlfoilibhg/114a3163lm.pdf?u=gsn58x
10:38 PM roycroft: i'll look at chamberlain openers
10:38 PM roycroft: every genie i've found says it's for sectionals only
10:38 PM roycroft: even their biggest ones
10:39 PM Tom_L: liftmaster & chamberlain same company
10:39 PM Tom_L: you can read that and see if you think it would do
10:39 PM roycroft: they are well-known names
10:39 PM roycroft: i'm by no means married to genie as the brand i want
10:40 PM Tom_L: i recently got a new chamberlain belt drive for one of the doors
10:40 PM roycroft: i suspect almost any of the genies will work, but they all say they're for sectional doors only
10:40 PM roycroft: o
10:40 PM Tom_L: been pretty happy with it
10:40 PM roycroft: i'm fine with chain drive, but i'll get belt drive if it seems more reliable
10:40 PM Tom_L: i think that's all the box store had
10:41 PM Tom_L: and they guarantee the belt
10:41 PM roycroft: the main difference in most cases is that a belt drive is quieter, and sometimes more appropriate for an attached garage
10:42 PM Tom_L: it is alot quieter
10:42 PM Tom_L: i've had screw, chain and belt now and i think i'd stick with belt for mine
10:43 PM Tom_L: but mine are sectional
10:43 PM roycroft: yeah, screw drive and chain drive are both pretty noisy
10:43 PM roycroft: i don't actuate it all that often though , so the noise is not a big deal to me
10:45 PM roycroft: well, there's an inexpensive chamberlain at lowe's that might work
10:46 PM Tom_L: long as the motor is heavy enough
10:47 PM roycroft: it's chain drive, and while the specifications don't specifically state that they are suitable for one-piece doors, the installation instructions say "DO NOT install on a one-piece door if using devices or features providing unattended close. Unattended devices and features are to be used ONLY with sectional doors."
10:47 PM roycroft: that implies that it will work with a one-piece door
10:47 PM roycroft: as long as i don't install the stuff that i don't know what they're talking about
10:47 PM roycroft: this is not a heavy door
10:48 PM Tom_L: i read that part
10:48 PM roycroft: it's about 12 feet wide, 7 feet tall, and is made of thin sheet metal
10:48 PM roycroft: no insulation
10:48 PM roycroft: no wood
10:48 PM Tom_L: i'm not sure exactly what that is but might be a timer that says when it's closed?
10:49 PM ve7it: https://ve7it.cowlug.org/garage-opener.html has a chamberlain manual at the bottom if you want some ideas
10:50 PM ve7it: I got that from a dumster and replaced my old sers model that blew the transmission
10:50 PM ve7it: sorry... cant type tonight!
10:50 PM roycroft: i'd be willing to bet that nobody makes single piece garage doors any more
10:50 PM roycroft: and that's why the openers don't talk about them
10:51 PM Tom_L: but there are probably still quite a few out there
10:51 PM ve7it: probably because photocells cant really protect door path on a 1 piece door
10:54 PM roycroft: sure they can
10:54 PM roycroft: mine has photocells
10:54 PM roycroft: and many times i've had to go move something slightly so the door will close
10:54 PM roycroft: i even put tape down on the floor to help keep the path clear
10:55 PM roycroft: but sometimes an extension cord or vacuum hose or something will dangle down in the path of the photocells