#linuxcnc | Logs for 2019-01-30
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[01:17:44] <CaptHindsight> https://www.accuweather.com
[01:34:56] <fragalot> they got the snow predictions wrong here
[01:35:04] <fragalot> there is so much more than what they said >.<
[01:35:40] <fragalot> and it's still going
[01:36:05] <fragalot> (and we are not allowed spiked tires here)
[01:36:20] <fragalot> or chains
[01:36:57] * fragalot googles "how to attach snowplow accessoire to toyota auris"
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[01:44:32] <CaptHindsight> fragalot: get a snowmobile
[01:45:11] <CaptHindsight> well we were supposedly going to have a mild winter
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[01:51:43] <Deejay> moin
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[03:43:42] <selroc> log
[03:43:42] <russian_troll> selroc: Today's Log http://www.isaeff.net
[03:43:42] <c-log> selroc: Today's Log http://tom-itx.no-ip.biz:81
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[05:30:47] <jthornton> morning
[05:32:32] <Deejay> hey jt
[05:32:32] <XXCoder> morning
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[06:15:58] <Tom_L> morning
[06:16:46] <Tom_L> 14°F Hi 26
[06:18:04] <jthornton> morning
[06:18:40] <jthornton> a bit warmer here at 19°F and getting up to a blistering 36°F and sunny
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[07:05:50] <Loetmichel> *gnihi* i am milling an enclosure out of 1,5mm aluminium sheet with about 40 2,5mm drills... made with a 2mm 3 flute that moves in helically at 1200mm/min... the whole router is shaking like it had a seizure ;)
[07:06:24] <XXCoder> lol you need anti-vibration setup
[07:07:47] <Loetmichel> XXCoder: like this but faster and more extreme because 2,5mm holes instead of 2,5mm hexagons...-> https://www.youtube.com
[07:08:16] <XXCoder> lol
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[10:41:52] <gp5st> hello. I'm new to all of this and still planning what I want to do and have what's probably a stupid question. Can I use multiple parallel port cards to increase the number of input/outputs/axis control?
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[10:55:36] <cradek> yes, but if you have a more complex system you'd probably be happier with special purpose IO/axis cards instead of parallel ports
[10:58:52] <cradek> check out https://mesaus.com
[11:01:18] <gp5st> cradek, thanks :)
[11:02:29] <gp5st> I must have run across so of their more expensive things first, but what i'm seeing now isn't that bad.
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[11:19:43] <jthornton> for steppers the lowest cost card is the 7i96
[11:21:13] <gp5st> jthornton, thanks!
[11:32:18] <Wolf__> its almost easy to use as well =)
[11:34:26] <Wolf__> jthornton: I should be starting the actual config of my plasma build today once I get all the wiring done, been bouncing back and forth between that and rewiring my lathe for VFD
[11:35:57] <Wolf__> whole while resisting the temptation to pull the mill apart and figure out what I need to do to mount the new motor on it lol
[11:36:10] <jthornton> don't over do it lol
[11:36:42] <jthornton> gp5st: also note you can add more I/O later with the smart serial cards
[11:37:44] <Wolf__> I figured I would start at the base setup, just getting the travels/limit switches set up, then add stuff to the config in steps, like the THC and pendant
[11:39:08] <Wolf__> still need to design a new torch holder to allow it to float and break away
[11:43:50] <gp5st> jthornton, thanks! yeah, this looks like it could be a decent and flexible option
[11:44:57] <jthornton> gp5st: I wrote a configuration tool for the 7i96 https://github.com
[11:45:37] <`Wolf_> https://i.imgur.com https://i.imgur.com
[11:46:56] <jthornton> dang temp is down to 14°F so tempted to put a heat lamp in the coop but know better
[11:47:08] <`Wolf_> at least its starting to look like a cnc machine now
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[12:02:07] <FinboySlick> Wolf__: Livingroom might get a bit messy when you start plasma-cutting though.
[12:02:32] <Jymmm> thats what shopvacs are for
[12:02:45] <`Wolf_> naa, everything looks better with a fresh coat of fire
[12:06:26] <`Wolf_> putting the vfd on the lathe was a mistake, now I know what I’ve been missing not having one on the mill lol
[12:07:42] <`Wolf_> https://i.imgur.com and new panel with high/manual/low speed switch, frequency set knob, jog button and spindle rpm display https://i.imgur.com =)
[12:08:13] <gregcnc> temp creeping up -17°F(-27°C)
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[12:32:25] <fragalot> 'sup
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[12:36:25] <Loetmichel> Wolf__: s/fire/sputtered metal
[12:37:31] <Deejay> gregcnc, thats f***ng cold!!!
[12:37:33] <`Wolf_> hard wood floors and walls, wouldnt take long for it to be fire
[12:37:53] <fragalot> nothing beats a good old fashioned titanium fire
[12:38:16] <Loetmichel> Deejay: nah. just a "little fresh" ;)
[12:38:20] <gregcnc> tonight is supposed to be -30°F
[12:38:39] <Deejay> Loetmichel, i know, t-shirt-weather for you
[12:38:46] <Loetmichel> yes :-)
[12:40:16] <Loetmichel> i have to admit that wehen i was out smoking in tshirt and jeans in -14°C last week at the company i started chattering after talking with the neighbor over the fence for half an hour
[12:41:06] <Loetmichel> s/chattering /shivering
[12:43:44] <Jymmm> Loetmichel: and the neighbor had a coat and gloves on?
[12:43:58] <Loetmichel> coat yes, gloves no
[12:45:41] <`Wolf_> my mills power feed is annoying, should I add a external hang on the axis feed box or lcnc it but put some sort of disconect on the motors if I want to run manaul… hmm
[12:47:32] <fragalot> Wolf__: what about adding force-feedback encoder handwheels after you've lcnc'd it?
[12:48:00] <`Wolf_> I have glass encoders on it already
[12:48:19] <`Wolf_> 5um DRO installed
[12:48:24] <fragalot> I meant for manual control
[12:48:42] <fragalot> s/encoder/MPG handwheel/
[12:48:51] <fragalot> but with force feedback because that feels so much nicer
[12:48:56] <`Wolf_> aye, might be a idea
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[12:54:50] <sensille> from time to time i get "program exceeds machine maximum on axis z". when i run it anyway, it's fine. positive z is up. the program is operating only in a small range of the machine. what do i do wrong?
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[12:56:49] <`Wolf_> safe Z set to high in cam?
[12:58:20] <sensille> i'm using f360, and clearance height is set to 15mm from stock top
[12:58:36] <sensille> which is very far from machine top
[12:59:01] <sensille> but when i start the program, the first move goes all the way up
[12:59:21] <`Wolf_> not sure, I remember having the same issue, but I forget what it was
[12:59:42] <sensille> also it might have to do with my z touch off problems, i think after that move z is off by about 0.1mm
[12:59:56] <sensille> which does not happen if i run z up and down manually
[13:07:26] <`Wolf_> been too long since I ran my cnc, I forgot all the little things lol
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[13:15:02] <sensille> try to remember harder please! ;)
[13:18:03] <fragalot> toolchange height?
[13:19:00] <sensille> i only touch off z after a manual tool change
[13:19:24] <sensille> haven't looked at the tool table yet
[13:19:50] <sensille> i have the impression that sometimes it happens, sometimes not, even with the same program
[13:20:22] <sensille> it would be helpful to know the line number that's causing the warning
[13:21:41] <gregcnc> do you have limit switches?
[13:21:49] <gregcnc> homing?
[13:21:52] <sensille> only for homing
[13:22:21] <sensille> at -0.5mm on Z
[13:22:44] <gregcnc> if the traverls exceed soft limits , but the prg doesn't bump the siwtches it will run if you accept teh warning
[13:22:54] <gregcnc> typing shitty
[13:23:14] <sensille> it runs
[13:23:31] <sensille> can it cause Z to be of by 0.1mm if it hits the switch?
[13:23:37] <gregcnc> no
[13:23:40] <gregcnc> it would stop
[13:23:51] <sensille> ok, so that's not it
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[13:24:11] <sensille> is there a way to find the offending line?
[13:24:27] <sensille> apart from bisection?
[13:24:59] <gregcnc> like was said it's probably a Z+ move to a clearance plane
[13:25:12] <gregcnc> very common
[13:25:28] <sensille> the move goes to 15mm, while Z has about 60mm in that direction
[13:25:55] <gloops> could overrun the switch if at speed
[13:26:01] <gregcnc> ok i'ts not that
[13:26:14] <sensille> i linuxcnc causing z to go up all the way on start, or is it part of the program?
[13:26:22] <sensille> s/i/is
[13:26:25] <gregcnc> program
[13:27:10] <gloops> safe z height?
[13:27:12] <gregcnc> any G53 moves?
[13:27:57] <sensille> ah, yes
[13:28:03] <sensille> N20 G53 G0 Z0.
[13:28:35] <gregcnc> what is the soft limit on Z+?
[13:29:23] <sensille> ok, Z0 is a bad idea. that's the absolute limit
[13:29:45] <gregcnc> right
[13:29:51] <gregcnc> add a little room
[13:29:59] <sensille> i don't know, i don't remember configuring the soft limit with stepconf
[13:30:58] <gregcnc> check the ini
[13:30:59] <sensille> need to find where this move comes from in f360
[13:31:06] <gregcnc> machine setup
[13:34:28] <sensille> post process -> configuration?
[13:34:46] <gregcnc> i'm looking this is a bit different than hsm
[13:37:37] <gregcnc> hmm. doesn't seem to be anything like it. It's probably just in the post.
[13:38:14] <sensille> or i just change the range of the machine so that 0 is within limits
[13:38:26] <gregcnc> that's simple
[13:38:36] <gregcnc> i see it
[13:38:59] <gregcnc> when you go to post, G53homeposition should show in the list on the bottom right
[13:40:52] <gregcnc> not sure if that's a permanent edit to the post, though
[13:41:24] <sensille> i already looked through the list, it's not there
[13:41:46] <sensille> if it really goes to zero the machine might lose a step or two there
[13:41:56] <sensille> so it might be related after all
[13:42:07] <gregcnc> it won't lose steps, but it will give the limit error
[13:42:12] <gregcnc> and run just fine
[13:42:27] <gregcnc> unless there is a hard stop there
[13:48:05] <sensille> other seem to change the Z range to handle this
[13:49:22] <gregcnc> either way works, but machines should be setup with softlimits slightly larger than actual expected work envelope
[13:52:43] <sensille> will readjust that home is 0, and the homing switch at +1, absolute machine limit at +1.5
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[13:56:20] <Joe_Hildreth> Hi all
[13:57:19] <Joe_Hildreth> When using stepconf to import a Mach configuration, which version is supported? Mach 3, Mach 4 or both?
[13:59:33] <JT-Shop> 3
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[14:02:55] <JT-Shop> it's just a pretty basic import tool I know I wrote it
[14:05:05] <Joe_Hildreth> Thanks John. I am working on another CNC for the home hobbyist tutorial and I am going over Stepconf. Just wanted to make sure what the option would take. I have never used Mach so didn't know. Thank you sir.
[14:08:16] <Joe_Hildreth> The list of tutorials is slowly growing. I have done 15 so far and working on 16. I hope they help new folks trying to use LCNC. Here is the play list if your interested. https://www.youtube.com
[14:08:43] <Joe_Hildreth> Constructive criticism is welcomed too, BTW
[14:09:04] <JT-Shop> way to go, I usually don't watch videos and never watch them outside of free time :)
[14:09:21] <JT-Shop> does the CC work on them?
[14:10:21] <Joe_Hildreth> No worries. I am just trying to give back a little to the project. You, Andy, Arc-eye and many others have helped me through the years. Thought it would be good to give something to the project than just the best wiring practices. :-)
[14:10:27] <`Wolf_> *looks at videos
[14:10:58] <Joe_Hildreth> I have not created captions but I think the auto generated captions work. Let me verify.
[14:10:59] <`Wolf_> where is the how to for THC with a mesa card =D
[14:12:36] <Joe_Hildreth> I would like to do some on the Mesa cards, but I don't have any of that hardware. If they actually get used, I would be willing to buy a card and a dughter card and do some stuff on them. Just don't want to spend the money for the sake of spending it though. But hey, I would take a donation. haha
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[14:13:15] <JT-Shop> you can do a video on my 7i96 configuration tool but without the card you can't do a few things
[14:13:36] <`Wolf_> ^ 7i96 card would be a good starting point
[14:14:03] <`Wolf_> with a good how to video I bet they would get used more IMO
[14:15:22] <fragalot> Joe_Hildreth: CC appears to work fine. clear videos, good job. :)
[14:15:58] <Joe_Hildreth> JT-Shop: The auto generated CC's seem to work. I would like to move to Mesa, but have not done so. Other junk to buy for the shop. Seems like the 7i96 is a good starting point with these cards if I understnd correct.
[14:17:09] <Joe_Hildreth> I have a whole litany of things that I want to cover. The idea was to start as basic as I could and build the users knowledge base up.
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[14:18:20] <JT-Shop> that's a good idea for sure
[14:19:08] <JT-Shop> Joe_Hildreth: have you seen this? https://qtpyvcp.kcjengr.com
[14:20:51] <Joe_Hildreth> JT-Shop: No I have not seen that. Thanks for the link! I will be sure to check it out.
[14:22:16] <Joe_Hildreth> JT-Shop: It reads that it works on Stretch, Does it work on Wheezy? Also, is there a timeline that Stretch will replace Wheezy?
[14:23:24] <JT-Shop> QtPyVCP does not work on Wheezy only Stretch
[14:23:31] <JT-Shop> timeline for the OS?
[14:24:15] <JT-Shop> also http://gnipsel.com for building LinuxCNC on various OS's
[14:25:08] <hazzy-m> Joe_Hildreth: it will eventualy work on wheezy, but at the moment there are some bugs when using the PySide2 bindings on wheezy
[14:25:35] <Joe_Hildreth> I thought that I saw a dev version of Stretch for LCNC (Live CD)? The current one available is Wheezy, I didn't know if it would move to Stretch at sometime in the future. Or is best practice doing uspace for whatever distrobution?
[14:25:41] <hazzy-m> Your vids are great, and getting better, thanks for the effort!
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[14:27:12] <JT-Shop> yea let me try and remember the link
[14:27:18] <Joe_Hildreth> Thanks hazzy-m. They are slow coming due to a bunch of irons in the fire, but will eventually get more and more in the playlist. The fun starts I think after you have the basic config for a mchine and then start making changes and mods to it. That is where I hope they become helpful.
[14:27:48] <JT-Shop> http://linuxcnc.org
[14:27:49] <hazzy-m> almost all the work as been done to make stretch the new official ISO, even the web site and doc changes have been made, all that needs to be done it make it "live", last I head it was going to be around new years ...
[14:28:19] <hazzy-m> and: http://www.linuxcnc.org
[14:28:28] <JT-Shop> there it is lol
[14:28:38] <Joe_Hildreth> Is there a migration path to go from Wheezy to Stretch or is it a new install?
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[14:33:30] <JT-Shop> to change the OS is a new install
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[14:38:02] <Joe_Hildreth> Thanks JT.
[14:39:38] <Joe_Hildreth> hazzy-m: any ETA when QtPyVCP will make it to Wheezy? Is it close or a ways out?
[14:46:55] <hazzy-m> it is a ways out. it won't be difficult, but it's not very high priority since QtPyVCP is still in heavy development so most of the people who are interested in expermenting with it are using stretch anyway.
[14:48:23] <Joe_Hildreth> I will have to put it on my list of things to play with. Thanks for the information. :-)
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[15:03:51] <jthornton> Joe_Hildreth: did you post a link to your tutorials on the forum?
[15:04:52] <Joe_Hildreth> JT-Shop: No I didn't think about it. You can put a link there if you like, or I can if you want me too.
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[15:12:16] <JT-Shop> Joe_Hildreth: https://forum.linuxcnc.org
[15:12:23] <JT-Shop> add your tutorial there
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[15:38:20] <CaptHindsight> gregcnc: it's colder outside than in my freezer right now
[15:38:32] <JT-Shop> Joe_Hildreth: thanks for posting the list and thanks for not embedding any videos!
[15:38:56] <Joe_Hildreth> JT-Shop: I added a post to list the tutorials. I will try to update the TOC as I add new videos.
[15:39:02] <Joe_Hildreth> Your Welcome.
[15:40:29] * JT-Shop has the parts cut and blasted... screw work I'm building chicken stuff the rest of the day lol
[15:41:06] <gregcnc> -34°c tonight and 7° Sunday
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[15:42:10] <CaptHindsight> should be fun
[15:42:45] <Deejay> weather goes crazy
[15:42:50] <CaptHindsight> will be out in it soon
[15:44:51] <CaptHindsight> gregcnc: I recall similar days in the 80's and waiting for the temp to be above 0 to swap a transmission or similar
[15:45:10] <gregcnc> yeah news had some clips of '83
[15:45:16] <CaptHindsight> and it felt warm
[15:47:21] <CaptHindsight> Winnipeg gets this all the time, you don't hear all the hubub about it from them
[15:53:58] <Jymmm> a square circle... https://youtu.be
[15:55:00] <CaptHindsight> Jymmm: what time in the vid?
[15:55:52] <Jymmm> CaptHindsight: it's direct
[15:56:03] <Jymmm> t=99
[15:56:22] <Jymmm> CaptHindsight: it's already queued in the url
[15:56:50] <CaptHindsight> just use one nail and a string
[15:57:16] <CaptHindsight> I got bored at t=103
[15:57:35] <Jymmm> thats why I queued it for you guys.
[16:04:32] <Jymmm> CaptHindsight: A recirocal angle grinder https://youtu.be
[16:08:07] <hazzy-m> LOL, free handing would give a better cut
[16:08:38] <CaptHindsight> hazzy-m: hah was just thinking the same
[16:08:59] <gloops> @RoyalFamily
[16:08:59] <gloops> A cistern is fitted with three pipes, one of which will fill it in 48 minutes, the other in an hour, and the third in half an hour. How long will it take to fill the cistern when all three pipes are open together?
[16:09:18] <CaptHindsight> https://youtu.be
[16:09:25] <gloops> (answers on a postcard to H.M.Queen)
[16:10:39] <fragalot> huzzah the welder is gone
[16:10:55] <CaptHindsight> gloops: how many bushels does the cistern hold?
[16:11:10] <hazzy-m> CaptHindsight: That is better! I made a tile saw with a grinder that was similar
[16:11:15] <CaptHindsight> or is it pecks?
[16:11:24] <gloops> thats relative to the diameter of the pipes and water pressure
[16:11:57] <hazzy-m> it is not needed to solve the problem
[16:12:08] <CaptHindsight> gloops: are we assume that the pressure is constant in all three pipes?
[16:12:23] <gloops> the Queen is very thrifty with variables
[16:12:25] <CaptHindsight> and flow rate
[16:12:45] <gloops> yes i think so
[16:13:00] <CaptHindsight> <30 minutes
[16:14:02] <CaptHindsight> you use the division of roots rule
[16:14:43] <Deejay> gn8
[16:14:44] * hazzy-m used to be able to do those problems in no time before he got a degree, what happened? LOL
[16:15:04] <hazzy-m> n8
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[16:15:30] <CaptHindsight> 48, 60, 30
[16:15:45] <CaptHindsight> 60, 48, 30
[16:16:22] <CaptHindsight> they use 48 vs 45 just for fun
[16:16:28] <gloops> well, a) fills 1/48th of a tank per minute
[16:17:08] <CaptHindsight> but thats no longer true
[16:17:38] <CaptHindsight> 1/60 + 1/48 + 1/30 are fractions
[16:18:06] <CaptHindsight> you know you have to use decimals
[16:19:37] <CaptHindsight> hazzy-m: https://www.youtube.com
[16:19:52] <CaptHindsight> how long till you lose a finger with this?
[16:20:18] <gloops> no, its 3s
[16:20:53] <gloops> 6s
[16:21:31] <hazzy-m> CaptHindsight: That looks decent! (at removing fingers)
[16:23:14] <fragalot> interesting clamping mechanism. I wonder if it does anything at all better than just using your finger directly would
[16:23:19] <CaptHindsight> not sure if you've been around here long enough to have seen this https://www.youtube.com
[16:23:20] <gloops> thats a good idea holding something to drill
[16:23:24] <CaptHindsight> cnc classic ^^
[16:23:44] <fragalot> CaptHindsight: That's a beauty
[16:24:33] <CaptHindsight> he went on to design repraps
[16:24:42] <fragalot> lol
[16:25:31] <hazzy-m> time to fill the cistern is 14.117 minutes
[16:26:06] <gloops> my mrs will confirm shortly lol
[16:26:20] <hazzy-m> hahah
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[16:27:29] <gloops> yes 14.117647 minutes
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[16:27:38] <hazzy-m> first pipe can fill 1.25 tanks in an hour, second can fill 1 in an hour, and third can fill 2 in an hour, so together they can fill 1.25 + 1 + 2 = 4.25 tankes in a hour, so 60/4.25 minutes
[16:28:07] <hazzy-m> that took way longer than it should have, LOL
[16:28:26] * hazzy-m goes back to preschool
[16:29:16] <gloops> i found common denominator and worked the opposite way
[16:29:43] <gloops> they are questions on submarine commander application tests with about 30 seconds time
[16:29:52] <CaptHindsight> use decimals it's faster
[16:30:01] <hazzy-m> oh, that works too!
[16:30:41] <gloops> CaptHindsight depends how your brain works i suppose
[16:30:50] <CaptHindsight> plus any real math problem would have x, y, z and some !, ~ in it
[16:30:59] <hazzy-m> this one tripped me up, what is the value of (a-x)(b-x)(c-x) ... they the whole alphabet?
[16:31:14] <hazzy-m> they = thru
[16:31:49] <CaptHindsight> roman or greek alphabet?
[16:31:57] <hazzy-m> CaptHindsight: using RPN is faster :)
[16:32:13] <CaptHindsight> schoolnever liked me
[16:32:34] <hazzy-m> should work with any alphabet that has an x, but that might be giving it away ..
[16:34:59] <CaptHindsight> X does not equal x
[16:35:52] <CaptHindsight> going out to the cold, have 5 layers on
[16:37:46] <gregcnc> (x-x)=0
[16:38:02] <Jymmm> xxx
[16:38:53] <skunkworks> -15 here
[16:39:08] <gregcnc> what does tonight look like?
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[17:05:08] <CaptHindsight> figures, it's the rare sky blue day but below 0
[17:05:23] <CaptHindsight> not windt so not too bad
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[20:26:06] <Net|> https://youtu.be might work good for rocket stoves, cutting slits in a pipe at an angle
[20:29:41] <Net|> at 3 min the setup is easier to see
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[21:11:22] <CaptHindsight> https://www.youtube.com
[21:11:32] <CaptHindsight> Electric Motor Engine Factory
[21:12:00] <CaptHindsight> human hands terminate and connect coils
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[22:28:02] <MarcelineVQ> I wonder why, legal requirements for minimum human involvement? :>
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[22:29:06] <MarcelineVQ> *a minimum
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[22:37:29] <MarcelineVQ> really cool video
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[23:05:38] <Tom_L> the real genius is the one that figured out all the machine movements
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[23:13:07] * flyback bites Tom_L
[23:13:08] <flyback> hello :)
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[23:45:22] <CaptHindsight> https://youtu.be robot weaving in 3d
[23:47:27] <CaptHindsight> BMW skinning the same cat https://youtu.be
[23:51:10] <MarcelineVQ> right down to the same glove brand
[23:52:56] <CaptHindsight> then jumps to making batteries
[23:55:30] <CaptHindsight> plasma treatment before laying down adhesive https://youtu.be
[23:55:43] <CaptHindsight> probably looks like scifi
[23:57:59] <CaptHindsight> auto mkers become battery makers