#linuxcnc Logs
Dec 09 2022
#linuxcnc Calendar
12:29 AM sensille: is it normal for the read.tmax value to be greater than the servo thread interval? the host sends the read command during one run and the receives the data on the next run of the thread?
01:25 AM solarwind: CaptHindsight[m] https://youtu.be/RWDErj-pE1c?t=630 I just learned about "die swell"
01:26 AM solarwind: I didn't know about that property of polymers trying to get back to their previous shape
01:26 AM solarwind: So in theory, a better nozzle with a longer compression area and lower temperature would reduce this effect? Lower temperatures as well I guess
01:32 AM Deejay: moin
02:19 AM -!- #linuxcnc mode set to +v by ChanServ
02:50 AM -!- #linuxcnc mode set to +v by ChanServ
03:29 AM -!- #linuxcnc mode set to +v by ChanServ
04:27 AM -!- #linuxcnc mode set to +v by ChanServ
04:48 AM Tom_L: morning
04:49 AM XXCoder: yo TurBoss[m]
04:50 AM travis_farmer: G'Morning
04:52 AM JT-Cave: morning
05:38 AM travis_farmer: Sadly, no real time to work on my machine today... i have to ride down to the city, where the DMV/BMV is so i can renew my license. :-(
06:15 AM JT-Cave: there's a bazillion bugs flying around my cameras
06:15 AM JT-Cave: looks like a snow storm
06:15 AM travis_farmer: lol, must be in IR night mode
06:16 AM JT-Cave: yup
07:32 AM JT-Cave: hmm trying to build a rt kernel on debian 12 and it fails...
08:14 AM fdarling: sensille: pcw pointed out that components .read.time and .write.time units are not nanoseconds but clock cycles, so if your PC is running faster than 1GHz it can exceed 1000000
09:24 AM -!- #linuxcnc mode set to +v by ChanServ
09:31 AM sensille: oh, good to know
09:43 AM solarwind: Looks like I'm building a Voron 2.4
10:15 AM norias: I'm tempted to build a lathe
10:16 AM norias: With a 5C collect chuck for a spindle
10:17 AM norias: I kinda wonder exactly how bad sticking one of the 5C collet holders in a pillow block would be
10:17 AM norias: make two pillow blocks just to add a little rigidity
10:17 AM norias: s/make/maybe
10:18 AM travis_farmer: i think the runout on pillow blocks would be a tad shaky
10:19 AM norias: hm.
10:20 AM norias: i would think that'd be a function of the bearings you put in it
10:20 AM travis_farmer: fair enough
10:20 AM norias: i'm open to being wrong
10:22 AM travis_farmer: same here. when building my CNC router table, i originally had a makita 1101 router, until somebody told me to check the runout. it was terrible.
10:22 AM norias: ha
10:23 AM norias: air collet closers are expensive
10:24 AM travis_farmer: i agree...
10:25 AM John_f: norias I would use ER32 instead of 5C or maybe ER40 - you need Less collets
10:26 AM norias: I might normally agree
10:26 AM norias: but i want to feed bar stock
10:27 AM norias: ( and really only one size )
10:47 AM * JT[m]1 uploaded an image: (369KiB) < https://libera.ems.host/_matrix/media/v3/download/matrix.org/vznvOCkkJQQFarkecFvIhsiy/20221209_104638_8094192429921854428.jpg >
10:49 AM * JT[m]1 uploaded an image: (350KiB) < https://libera.ems.host/_matrix/media/v3/download/matrix.org/zQEjBgchlWKFgMiYKsGkgUxB/20221209_104656_2766363149183558041.jpg >
10:59 AM John_f: JT what is it?
11:03 AM JT[m]1: Double chucker I'm working on
11:03 AM John_f: for wood right?
11:04 AM John_f: is that your factory?
11:19 AM JT-Shop_ is now known as JT-Shop
11:20 AM JT-Shop: yes it cuts the ends of straight handles and no it's not my factory
12:07 PM unterhaus: I suppose I should have figured out how to use my diacro bender back when I bought it
12:08 PM unterhaus: I need a locking pin
12:10 PM unterhaus: company was bought out some years back and they fired everybody
12:14 PM * JT-Cave takes a nap
01:09 PM CaptHindsight[m]: norias: I had to DIY to get the cost of a collet closer down, but I am building many vs just one
01:10 PM roycroft: there are a lot of youtube videos about diacro benders, and a lot of dies and other parts on ebay for them
01:10 PM * roycroft has been wanting a diacro for a long time
01:11 PM roycroft: some day i'll show up at the right estate sale/auction at the right time and get one for a song
01:12 PM Tom_L: is that right next to your round tuit?
01:13 PM roycroft: whenever i run across one i'll get it
01:13 PM roycroft: but it is not and never has been a priority to seek one out
01:16 PM roycroft: so my boss wants to hook up this as400 toy he got
01:16 PM roycroft: to play with it
01:18 PM roycroft: he wants me to order a ups for it
01:19 PM roycroft: the production machines we have in the rack at the office, two of which are customer-facing, and another of which is the file server that holds all our graphics files for the print shop and all our accounting files, are not on a ups
01:19 PM roycroft: i have a ups that will handle all of that stuff
01:19 PM roycroft: but i need a 30a 240vac circuit for it
01:19 PM roycroft: and he won't pay for the circuit
01:19 PM roycroft: but he wants a ups for his toy
01:19 PM roycroft: and he won't tell me the power requirements for the toy
01:20 PM roycroft: and intends to plug the ups for the toy into the rack, which is maxed out right now on power
01:20 PM Tom_L: so get him the UPS and set it on top of the ibm
01:20 PM Tom_L: and say "HERE"
01:20 PM roycroft: if he plugs that into the rack, or plugs the ups into the rack, it will trip the breaker for the rack circuit
01:20 PM roycroft: but he's insisting that i spec the ups
01:20 PM Tom_L: i doubt it's very power efficient either
01:20 PM roycroft: even though i told him it would trip the breaker
01:21 PM Tom_L: tell him a Cray would be a better choice
01:21 PM roycroft: and i told him that if he wants to risk tripping the breaker and taking our production machines down i'll spec the ups for him
01:21 PM Tom_L: send him on another hunt
01:21 PM roycroft: but not until i know the power requirements of the as400
01:21 PM roycroft: he thinks i'm being obstructionist now
01:22 PM roycroft: so i told him that we have a ups that i'm pretty sure will handle it, and that ups is sitting in the back room, ready to go
01:22 PM roycroft: it just needs a 30a 240vac circuit
01:22 PM roycroft: he told me to find a ups that will plug into a "regular" socket that will handle the as400
01:23 PM roycroft: and i can pretty much guarantee that you're correct about it not being very power efficient
01:23 PM roycroft: i'm anticipating that the thing is going to draw 15a @120vac or more
01:23 PM roycroft: but i have absolutely no idea
01:23 PM Tom_L: my friend had an old raid he tried to give me.. no thanks
01:23 PM roycroft: i don't even know if the as400 is 1u or 30u high
01:23 PM roycroft: he won't give me any details at all
01:23 PM Tom_L: it was probably half the size of my desk
01:24 PM roycroft: you should have gotten it
01:24 PM Tom_L: what for?
01:24 PM roycroft: so that if the central heat ever fails in the middle of winter, you'll have a backup heating source
01:24 PM Tom_L: my ssd holds more than the raid
01:24 PM roycroft: it's a free spare furnace
01:25 PM roycroft: you can huddle around it on a dark, cold winter night and toast marshmallows over it
01:42 PM * roycroft fires up windows xp for the first time in a long time
01:47 PM jdh: There is no toy value in an as400
01:49 PM roycroft: my boss has wet dreams about as400s, and has for years
01:49 PM roycroft: i don't get it, myself
01:49 PM CaptHindsight[m]: yeah as400 have their followers
01:49 PM roycroft: i mean, database-driven operating systems are interesting
01:49 PM roycroft: i used to do a lot of work on pick machines
01:50 PM roycroft: db2 isn't a bad database engine
01:50 PM roycroft: but at the end of the day, it's just a bloody database
01:50 PM CaptHindsight[m]: sounds like your boss is still nuts
01:50 PM roycroft: i'd rather work with postgresql on a *nix machine than db2 on an as400
01:50 PM roycroft: but you know how the old saying goes
01:50 PM roycroft: different strokes for different folks
01:51 PM jdh: You can generally run aix or Linux on them
01:51 PM CaptHindsight[m]: can't win all of them all the time and you can't get them to wear those little uniforms either?
01:51 PM jdh: But that makes then really pointless
01:52 PM CaptHindsight[m]: or can't live with them and you can't get them to wear those little uniforms either? I mix my metaphors
01:53 PM jdh: So, I got a bunch of galil nema23 BDC motors. Pretty much drop in replacements. Techs just need a wiring color map to swap to them.
01:53 PM Tom_L: or an ohm meter
01:55 PM CaptHindsight[m]: the persons ordered to do manual labor = techs
01:56 PM roycroft: my boss wants me to learn how to admin an as400
01:56 PM roycroft: i'm resisting
01:56 PM roycroft: this company he's contracting for had an as400 guy
01:56 PM roycroft: he died
01:56 PM roycroft: he was in his 70s
01:56 PM roycroft: his replacement also died
01:56 PM roycroft: the replacement was in his 70s
01:56 PM Tom_L: pretty soon he'll have you putting it online with the rest of your stuff
01:56 PM roycroft: now my boss is the guy
01:57 PM roycroft: he's in his 70s
01:57 PM roycroft: i want to live past my 70s
01:57 PM roycroft: so i think i had better not learn anything about an as400
01:57 PM Tom_L: interesting logic
01:57 PM roycroft: i also don't want my boss to die until i retire
01:57 PM roycroft: but i can't do anything about that, i guess
01:57 PM Tom_L: what did they die from? maybe you can pick your poison
01:58 PM roycroft: i don't know
01:58 PM roycroft: but i don't want to take any chances
01:58 PM roycroft: so anyway, i'm trying to sort out this winch that i bought
01:58 PM roycroft: i want to be able to mount it on the front of my pickup and on the back of my pickup
01:59 PM roycroft: i have a hitch mount, so that's easy
01:59 PM roycroft: power, though, is problematic
02:00 PM Plaid: roycroft: What about migrating... off the as400?
02:00 PM Plaid: to something that doesn't have all the developers dieing of old age?
02:00 PM roycroft: i found this
02:00 PM roycroft: https://www.amazon.com/dp/B09R47HSSV/
02:01 PM roycroft: plaid: my boss is in love with the as400
02:01 PM roycroft: the company he's consulting for are in love with the as400
02:01 PM roycroft: there's no possible way they will migrate to something sensible
02:02 PM roycroft: i don't mind using a jumper cable to power the winch
02:02 PM roycroft: and that leaves me with a lot of flexibility
02:02 PM roycroft: i can fuse the cable
02:02 PM roycroft: is there any major drawback to doing it that way?
02:02 PM roycroft: other than every time i use it i have to hook it up, which does not bother me
02:06 PM roycroft: hmm, if i ever get a log loader/hauler trailer like i want, i can install a hitch receiver in the front of the trailer and move the winch to the trailer
02:06 PM roycroft: and use that same jumper cable to power it
02:06 PM roycroft: that would save purchasing another winch
02:07 PM roycroft: i am hoping to eventually build a bandsaw sawmill
02:07 PM roycroft: that perhaps will be run by linuxcnc :)
02:08 PM roycroft: i wonder if that would be the first linuxcnc-powered sawmill
02:16 PM t4nk_freenode: of course not!
02:17 PM Plaid: roycroft: Consider your long-term career. Maybe you want to specialize in the AS400... maybe you want to find a new company to work for that's not using... I don't know how old the AS400 is now.
02:19 PM Plaid: I'm working on converting an existing router that uses Renco 324599-03 D/C 9945, but I haven't figured out it's PPR yet. If anyone has a line on this, I'd appericate it. Otherwise I'll just do it via measurement
02:19 PM roycroft: i'm almost ready to retire
02:19 PM Plaid: Ah, then figure out your short-ish term plan to max out revenue, with long term income possiblities
02:20 PM roycroft: i'm just trying to keep my job for a few more years, while i build my post-retirement business
02:20 PM roycroft: and hopefully remain employed until i'm eligible for the maximum social security benefits, which i believe is at age 70-1/2
02:21 PM roycroft: unless the republicans sweep the 2024 election and cancel social security :)
02:22 PM roycroft: the republicans keep threating to do that, and the democrats keep fearmongering about it, but when republicans control things they never actually do it
02:23 PM roycroft: i guess it's part of the game
02:23 PM roycroft: whose rules and the point of which i don't understand
02:23 PM CaptHindsight[m]: those "handouts to freeloaders" that were collected for the past 70 years?
02:23 PM CaptHindsight[m]: nah you can't analyze it or comment on it
02:24 PM CaptHindsight[m]: just consume, conform and obey
02:24 PM roycroft: i think it's all about the barney song
02:24 PM CaptHindsight[m]: https://www.youtube.com/watch?v=iJC4R1uXDaE
02:24 PM roycroft: you know - "i hate you, you hate me, we're a dysfunctional family"
02:27 PM CaptHindsight[m]: divide and concur?
02:28 PM roycroft: so that jumper cable is made of copper-plated aluminium wire
02:28 PM roycroft: maybe not the best choice
02:28 PM roycroft: too bad - it would be a good solution if it were solid copper
02:29 PM CaptHindsight[m]: best choice for maximized profit
02:29 PM CaptHindsight[m]: yah just gottah change your persepective
02:30 PM roycroft: for jumper cables that are not used often it might be good
02:30 PM roycroft: i fear that for my use, it would not be durable enough
02:30 PM roycroft: thin-stranded aluminium wires get brittle and break easily
02:30 PM CaptHindsight[m]: and avoid political discussions
02:31 PM roycroft: maybe some 2/0 welding cables would work
02:31 PM CaptHindsight[m]: try warming them before use
02:31 PM roycroft: that may not always be possible
02:43 PM Plaid: roycroft: And I get to pay into the system, but I doubt I'll see the benefits of it
02:47 PM roycroft: that may well be
02:48 PM roycroft: i'm not complaining about this from a personal perspective
02:48 PM roycroft: i'm close enough to getting benefits that i'm pretty sure any cuts won't affect me
02:48 PM roycroft: but younger people may pay into it for decades and end up getting nothing out of it
02:50 PM * roycroft is pretty sure the winch needs 4/0 wire to safely power it off the back of the pickup
03:48 PM * JT-Shop listens to Tit galop pour Mamou
03:56 PM * roycroft will be so glad when this week is over
03:57 PM roycroft: one more hour of work
03:57 PM roycroft: and then only another 10-12 hours of volunteer work, and the week is over
04:09 PM JT-Shop: since I dropped prime every time I place an order I have to say no to prime before I can checkout
04:10 PM roycroft: yeah, i hate that
04:10 PM roycroft: i have to do it, and i've never had prime
04:10 PM roycroft: they don't have a "quit nagging me" option that i've found
04:10 PM roycroft: other than to pay for prime
04:11 PM Tom_L: it's their little ploy to wear you down
04:11 PM roycroft: yes
04:11 PM roycroft: but i've been buying from them for a very long time
04:11 PM roycroft: at least 15 years, i'm sure
04:11 PM roycroft: and i've never once broken down and signed up for prime
04:11 PM roycroft: i can be more stubborn than jeff bezos
04:12 PM JT-Shop: makes me not want to order from amazon
04:12 PM roycroft: and i have more hair than jeff bezos
04:12 PM Tom_L: they're certainly not always the cheaper option
04:14 PM Tom_L: there will be some very large warehouses available in a few years when something comes along better
04:15 PM roycroft: or something less evil, at least :)
04:15 PM Tom_L: i doubt that
04:15 PM Tom_L: they'll just hide it better
04:23 PM JT-Shop22 is now known as JT-Shop2
04:30 PM XXCoder: roy man https://youtu.be/sDd1C3fNHlY
04:30 PM XXCoder: he takes pride in perfect finish
04:32 PM roycroft: i like thomas johnson
04:32 PM XXCoder: great channel yeah
04:32 PM roycroft: my only problem with him is that most of his videos are really long
04:32 PM roycroft: the one you just linked to isn't, but most are
04:32 PM XXCoder: yep
04:32 PM roycroft: there's a furniture maker i like, i forget his name, but his videos average 90 minutes or longer
04:32 PM roycroft: i don't watch them often for that reason
04:42 PM JT-Shop2: High Cotton
04:43 PM XXCoder: I sometimes forward though his videos, expecially "repeats"
04:43 PM XXCoder: like second and third and fourth coat
04:44 PM XXCoder: nice thing about forwards in yt is that sometimes captions appear so I dont miss what was said as much lol
04:48 PM unterhaus: There is an awful video about using a diacro bender that I'm glad I didn't give up on
04:49 PM unterhaus: I did fast forward through the part where he explained at length how to use a caliper though
04:50 PM * JT-Shop2 sold his Huth HB-10 bender
04:59 PM JT-Shop2: Cheap Day Return then call it a night
05:33 PM roycroft: windy.com has gotten very colorful again, but a bit farther offshore than the other day
05:34 PM roycroft: we do have gale warnings on the coast again, though
07:03 PM zephyr9900: /msg nickserv register ColoradoTypeM4a your@email.address
07:04 PM Tom_L: woopsie
07:04 PM zephyr9900: yes does this mean everyone knows my password?
07:05 PM Tom_L: probably a good time to come up with a new one
07:05 PM Tom_L: no space before the '/'
07:05 PM Tom_L: i generally do those things in the server channel
07:09 PM * zephyr9900 thanks Tom_L for advice
07:10 PM roycroft: i accidently exposed a real password for something that matters on channel a while back
07:10 PM roycroft: that caused a mad scramble on my part to change that password
07:10 PM Tom_L: another good piece.. don't post pics on irc about something with your billfold open and cc showing
07:10 PM roycroft: that was quite a while back
07:11 PM zephyr9900: Yes that I why I chose a PW that is not even close to my important ones
07:11 PM Tom_L: we've probably all been there to some degree
07:13 PM XXCoder: none of sites I have password on share with any other site
07:13 PM Tom_L: i always just use 'password'
07:13 PM Tom_L: :)
07:14 PM zephyr9900: So what does the + in front of your name mean?
07:14 PM Tom_L: voice or op
07:14 PM Tom_L: which tells me you're not using hexchat
07:15 PM XXCoder: ... not hexchat? https://itcamefromblog.files.wordpress.com/2019/01/image.png
07:15 PM XXCoder: joking
07:15 PM zephyr9900: I just clicked on the link on the linuxcnc community page
07:15 PM Tom_L: huh, i've never tried that
07:15 PM Tom_L: must be a web based one
07:16 PM zephyr9900: yes web based
07:16 PM Tom_L: hexchat seems fairly popular
07:20 PM zephyr9900: I presume JT-Cave is John Thorton
07:20 PM Tom_L: yup
07:23 PM zephyr9900: I see that a lot of Mesa boards are not in stock. Is this mostly related to the chip shortage?
07:23 PM Tom_L: yup
07:23 PM Tom_L: 7i96s would be one to look at
07:23 PM Tom_L: it has a newer fpga that seems to be available
07:24 PM zephyr9900: I don't have an immediate need but hope to do another machine in the future. I am using 7i80 now
07:25 PM Tom_L: i have the 7i90 which is the same with a parallel port interface instead of ethernet
07:25 PM Tom_L: probably alot more IO than you really need
07:26 PM XXCoder: better 10 extra than 1 short
07:26 PM zephyr9900: I like the idea of ethernet because almost everything has an ethernet port and the computer does not need to be real close to the machine
08:17 PM Plaid: I have a ton of extra. I had to get a 7i96s and a 7i77 so I now have a crapton of extra IO. The correct 7i9 wasn't in stock that had the analog outs :P
08:19 PM Plaid: So... I m getting closer to having my machine active. I see joint-2-fb has a value, but that value isn't showing as my actual position in LCNC. I have LCNC showing actual position, but shouldn't that value show as my Z position?
08:21 PM Plaid: I start LCNC, turn the machine on, "Home" the z axis (which just marks it homed), then manually rotate the z axis. I see the joint-2-fb value change, but not the Z position in LCNC
08:55 PM zephyr9900: Plaid if setting in Axis is to show actual position then if you rotate a motor or axis you should see it change on the display.
08:55 PM Plaid: zephyr9900: Right. But I'm not seeing that, and I'm trying to figure out how to troubleshoot that.
08:58 PM zephyr9900: I was going to look at my machine configuration but I am not in the shop and it looks like the computer for that machine is off.
08:59 PM zephyr9900: in Axis you can look at the hal configuration it will show a lot of stuff
09:04 PM Plaid: AHhh... The auto-generated hal file I got has... some descrepencies :P
09:04 PM Plaid: joint-2-fb isn't tied to anything
09:05 PM zephyr9900: I think in the INI file is where you specify the joints and axis
09:06 PM zephyr9900: http://linuxcnc.org/docs/stable/html/config/ini-config.html#_axis__lt_letter_gt_section
09:10 PM zephyr9900: do you have [TRAJ] COORDINATES = X Y Z ? I assume this is a 3 axis machine
09:10 PM zephyr9900: and [KINS] JOINTS = 3 ?
09:12 PM zephyr9900: and a [AXIS_X] , [AXIS_Y], [AXIS_Z] section in the INI file?
09:16 PM Plaid: II figured it out, the generated hal file is missing some configuration.
09:17 PM zephyr9900: I had trouble with the auto generated stuff so I just write my own hal files.
09:17 PM zephyr9900: Plaid: good
09:21 PM Plaid: Oooh, I've upgraded to getting follow errors.
09:22 PM roycroft: new errors is often a good sign
09:22 PM roycroft: as long as some of the old ones have gone away
09:22 PM Plaid: I know. IT's yelling that it can't move the motor (that's not plugged in)
09:23 PM roycroft: did you press the "you are correct, sir!" button?
09:27 PM Plaid: Now the question.. am I brave enough to try to connect the amp yet...
09:28 PM Plaid: I'm going to ensure I have the encoder setup better first.
09:30 PM roycroft: i would disconnect the motor from the motion control system for initial testing
09:30 PM Plaid: Already done that.
09:30 PM roycroft: i've not built my router yet, but i have built most of the controller
09:31 PM roycroft: and i have put all the motors on the bench with tape flags on them
09:31 PM roycroft: as of now, none of the magic blue smoke has escaped from anywhere
09:31 PM roycroft: and no cats have been harmed
09:31 PM Plaid: Heh. So far I've only lost one fuse to my bad wiring
09:32 PM roycroft: fuses are born to martyrdom, so do not lament their sacrifice
09:36 PM Plaid: Oooh, my PID is putting out a reasonable -0.5 to move.
09:37 PM Plaid: I'm going to be brave
09:37 PM roycroft: and where is your machine located?
09:37 PM * roycroft wants to look for the blue smoke in the correct direction
09:49 PM Plaid: Central Texas. Watch for the blinding light, you won't miss it
10:04 PM roycroft: ok, so southest
10:05 PM roycroft: it's gettin blustery here in the valley
10:13 PM Plaid: Humm, commands up to 2v didn't do anything. I'm going to take a break for a bit
10:18 PM redlegion is now known as redgreenlegion
11:25 PM roycroft: the new jig for my chopstick maker just arrived a few minutes ago
11:26 PM roycroft: and i had to run out to the shop and make a pair of chopsticks
11:26 PM XXCoder: yay
11:26 PM roycroft: yeah
11:26 PM roycroft: they turned out great
11:27 PM roycroft: making chopsticks will be a great way to use up scrap wood
11:28 PM XXCoder: I bet. what would coating be like though
11:28 PM roycroft: i'll use tried and true varnish oil
11:28 PM roycroft: it's all natural, and food-grade
11:29 PM XXCoder: how strong is it? can it be washed in hand wash dishes for example
11:29 PM roycroft: yes
11:29 PM XXCoder: coool
11:29 PM roycroft: i use it on cutting boards and it's fine
11:31 PM XXCoder: nice
11:31 PM XXCoder: talking of that
11:32 PM XXCoder: ever tried grain up type?
11:32 PM roycroft: yes,but not for a while
11:32 PM roycroft: that's another way to use scrap wood
11:32 PM roycroft: shorts can be glued up to make end grain cutting boards
11:32 PM XXCoder: I want my cnc to be setup and running dammit
11:32 PM XXCoder: but still zero space :(
11:46 PM Plaid: Humm, I'm still fighting with this. So my analogout2 has a value of 2, analogena is TRUE, but I measure the voltage across the AOUTN to GNDN, and I get less then 1mv.