#linuxcnc Logs
Aug 31 2018
#linuxcnc Calendar
12:00 AM rue_: I'm ok
12:03 AM flyback: good :)
12:03 AM flyback: CANUCK :)
12:03 AM rue_: what power led laser doya think I need to cut tinfoil?
12:03 AM flyback: last time we chatted I still had my teeth :(
12:03 AM flyback: rue_, dunno but whatever you do
12:03 AM flyback: please
12:03 AM fragalot: hi
12:03 AM flyback: built a full shield all around it
12:03 AM flyback: all it takes if a reflection off a cutting surface and you got a fucked eyeball for life
12:03 AM fragalot: rue_: I'm not sure they make LED lasers in the right wavelength for tin foil?
12:03 AM flyback: waigt
12:03 AM flyback: led lasters are a thing?
12:03 AM rue_: I thik you coat the tinfoil in soemthing for cutting
12:03 AM rue_: like black ink
12:03 AM fragalot: Hm.
12:03 AM flyback: some people don't th ink about reflections
12:03 AM flyback: and it gets them
12:03 AM fragalot: flyback: most*
12:03 AM flyback: or causes a fire
12:03 AM fragalot: even with an enclosure I still feel more comfortable with a pair of laser glasses on
12:03 AM flyback: yeah
12:03 AM fragalot: however, with lasers, if there is a window; you are not the only one around it.
12:03 AM flyback: that too
12:03 AM flyback: your kids etc :(
12:03 AM flyback: there's a very old safety video on welding and torches
12:03 AM flyback: very heart breaking
12:04 AM flyback: guy finds out he's going to be a dad so he grabs another guy to spin him around to celebrate, instead of following procedure and tapping on his shoulder
12:04 AM flyback: thats a welding torch to the fact
12:04 AM flyback: lvies but will never get to "see" his kid
12:05 AM flyback: the other nasty one is high psi lines
12:05 AM flyback: guys accidentely injecting grease into their veins etc
12:06 AM flyback: yeah rue_ glad to see you are still around
12:06 AM flyback: im still fighting some health issues, lost the battle with gum diease that killed all the tooth roots, but still kicking for now
12:07 AM flyback: <flyback> thats a welding torch to the fact
12:07 AM flyback: takes a welding torch to the fact
12:07 AM flyback: the next time hexchat silentely autocorrects after I disabled it
12:07 AM flyback: I am going to send a dev a death threat
12:07 AM flyback: :P
12:07 AM fragalot: xD
12:07 AM flyback: it did it again
12:08 AM flyback: face
12:09 AM rue_: ok, then, I'll do it with EDM, thanks
12:09 AM fragalot: rue_: to do it properly you'd have needed fiber anyway.. I'm not sure if that black spray really works /THAT/ well
12:11 AM flyback: no laser is fine
12:11 AM flyback: just saying if you build your own
12:11 AM flyback: be sure to think about reflections
12:13 AM Wolf__: do not look into laser with remaining eye
12:14 AM flyback: COURSE you might not be able to buy one
12:15 AM flyback: thanks to dipshits who shine them at aircraft
12:15 AM rue_: 0.5mm graphite edm
12:16 AM rue_: np
12:18 AM Wolf__: diode laser wont touch any metals https://i.imgur.com/GRhMDM3.jpg
12:19 AM tiwake: Wolf__: I have a 30 watt diode laser
12:20 AM Wolf__: cuts metals?
12:20 AM tiwake: melts optics... heh
12:20 AM rue_: tinfoil
12:21 AM tiwake: haven't had proper crap to set it up and crap
12:21 AM rue_: its ok, I'lluse 0.5mm graphite EDM
12:22 AM tiwake: Wolf__: I'd like a 100+watt laser for cutting thin crap, maybe 300watts or so for cutting steels, or more
12:22 AM tiwake: but such will probably never happen... I'd rather get a waterjet machine :3
12:22 AM rue_: TINFOIL
12:22 AM rue_: aluminum tinfoil
12:23 AM rue_: the question is getting blown way out of proportion
12:23 AM tiwake: I'm going back to bed
12:24 AM flyback: water jet
12:25 AM MarcelineVQ: nooo, the cutworm moths are back, damn you late august
12:26 AM rue_: flyback, dude, encoder wheels
12:26 AM rue_: 0.5mm graphite EDM
12:26 AM flyback: ok
12:27 AM flyback: graphite is a insteresting material
12:27 AM MarcelineVQ: Carbon is probably the most interesting element in general
12:27 AM flyback: I mean graphite and coke aren't very strong
12:27 AM flyback: but they can take levels of heat where metals turn to gas
12:28 AM flyback: MarcelineVQ, activated carbon is really neat
12:28 AM fragalot: graphene IS super strong, flyback
12:29 AM flyback: the purest grade for medical etc is made from waste coconut shells
12:31 AM flyback: also makes a wicked charcoal
12:32 AM MarcelineVQ: You're better off cooking a hardwood in in mostly-sealed container if you want wicked charcoal, it bakes off the volatiles which escape and burn but doesn't let enough oxygen in to burn
12:32 AM flyback: well they use coconut shells a lot
12:32 AM MarcelineVQ: This form of charcoal is also excellent to break apart and add to a garden after soaking it in a nitrogen source
12:32 AM flyback: to make charcoal
12:33 AM flyback: in thailand
12:33 AM MarcelineVQ: yes it's quite renewable. interestingly cocnut shell is used in gardening too in non-charocal form, coar I think it's called, which is just ground up really
12:33 AM flyback: but I rather them use it to make activated carbon and wood for charcoal
12:33 AM MarcelineVQ: coar mightt be husk not shell actually
12:34 AM flyback: it sucks pollutants and medicines out of wastewater
12:34 AM flyback: hmm come to think of it
12:34 AM flyback: since carbon can do high temps
12:35 AM flyback: you could then heat the activated carbon to break down what was collected
12:35 AM rue_: and when it oxidizes
12:37 AM flyback: that might not be bad
12:37 AM flyback: if it staYS TOGETHER long enough to thermally destroy the captured chemicals
12:39 AM flyback: rue_, have you seen pics of activated carbon
12:39 AM flyback: the inside
12:39 AM flyback: it's crazy shit
12:39 AM flyback: rmemeber the next generation star trek episode with the enterprise hiding inside a asteroid
12:39 AM flyback: there you go
12:43 AM flyback: rue_, https://upload.wikimedia.org/wikipedia/commons/6/65/Activated_Charcoal.jpg
12:45 AM veek: it's wood heated without O2 to make charcoal.. and then?
12:45 AM rue_: yea, I was saying I'll turn a mechanical pencil into a foil-cutting cnc machine.
12:46 AM veek: powder; add cacl+h2o; paste bake
12:47 AM rue_: what this button do?....
02:09 AM Deejay: moin
03:00 AM MarcelineVQ: 12 cutworm moths kille so far tonight, bleh
04:20 AM fragalot: 'ello
05:10 AM jthornton: morning
05:12 AM Tom_L: morning
05:15 AM gloops: https://www.facebook.com/marketplace/item/2115633415370915
05:16 AM XXCoder: lol
05:16 AM XXCoder: thats more expensive than many chineseium ones
05:16 AM gloops: my Chinese CNC, workable size is 300x200mm, lots of tools with it.
05:16 AM gloops: meh, the mrs says i dont need it
05:17 AM XXCoder: ahh mrs ta
05:17 AM XXCoder: tax
05:17 AM gloops: i thought that XXCoder lol
05:17 AM gloops: i dunno 12x8 - some are better than others
05:18 AM XXCoder: not making money with it?
05:18 AM Tom_L: gloops is she an expert on those matters?
05:18 AM gloops: doesnt look like it, unless he is and upgrading
05:19 AM gloops: Tom_L shes probably right heh, tis just down the road thats the main interest, would be ok for 80 maybe
05:20 AM XXCoder: honestly if you have materials its much cheaper to just buy electrics kit and build rest
05:20 AM gloops: would only spend 200 on it anyway
05:21 AM gloops: yeah XXCoder, actually i could build a decent small one now - cut parts with mine
05:21 AM gloops: i dont need one, stick to the plan lol
05:22 AM XXCoder: :)
06:22 AM sysop is now known as Guest95176
06:30 AM miss0r: Browsing an ebay seller for cheap lathe tooling.. Then I come across something I don't quite understand what is: "2.5" Quality Stainless Steel Male tube Urethral Sound Penis Plug Hole Through"
06:30 AM miss0r: https://www.ebay.co.uk/itm/2-5-Quality-Stainless-Steel-Male-tube-Urethral-Sound-Penis-Plug-Hole-Through/273017010099?hash=item3f9114f7b3:g:JHkAAOSwJWFaU~70
06:30 AM miss0r: I'm scared now
06:31 AM miss0r: shit.. theres alot more of that stuff there.
06:31 AM * miss0r is leaving
06:32 AM XXCoder: miss0r: lol
06:32 AM miss0r: yeah... not my cup'o tea
06:33 AM XXCoder: nor mine, I suppose besides the... fun aspect, it might help some people pee stright
06:33 AM miss0r: is that what it is for?!
06:33 AM XXCoder: nah no idea what its for honestly
06:34 AM miss0r: I was thinking something along the line of a 'prince albert' piercing
06:34 AM XXCoder: weird stuff like that? likely "fun" stuff
06:34 AM miss0r: who in their right mind would, willingly, shove stuff like that up their pee-hole?
06:34 AM * miss0r is amazed
06:34 AM XXCoder: people do strange stuff
06:35 AM miss0r: Yeah... some of the people doing stuff like that, would call me a sadist for being selfemployed I guess :()
06:37 AM miss0r: hmm... What is the metric equivalent of the 1-2-3 blocks? Arent there supposed to be something called a 2-4-6 block ?
06:37 AM miss0r: (in centimeters)
06:39 AM XXCoder: not too sure on dims but yeah it exist
06:39 AM XXCoder: doesnt look as good as 123 tho!
06:40 AM XXCoder: apparently 25 x 50 x 75mm ?
06:40 AM miss0r: hmm
06:40 AM miss0r: https://www.ebay.co.uk/itm/Metric-Parallelblock-1-2-3-Blocks-Parallelblocke-25-x-50-x-75-Mm-Thread-M10/162882633069?hash=item25ec8fbd6d:g:OUgAAOSwzRFac6aD
06:40 AM miss0r: looks alright
06:41 AM XXCoder: I laughed my ass off when I first saw this. https://www.thingiverse.com/thing:584470/
06:41 AM XXCoder: all 123 worth is in its precison. and that has none.
06:41 AM miss0r: wtf
06:41 AM miss0r: Is that 3D printed or something? :D
06:41 AM XXCoder: it is
06:42 AM miss0r: that is useless, if I ever saw something
06:42 AM jthornton: it's great toy for a kid that want's to be a machinist lol
06:42 AM XXCoder: discription says its for depostability when you dont care about precision
06:42 AM miss0r: Well.. that v-block with the clamp jig can be used for *something* I guess
06:42 AM XXCoder: I plan to print one as joke evenually
06:43 AM miss0r: hehe. Even when "I don't care about precision" I would never use something THAT out of square lol
06:43 AM XXCoder: https://www.arceurotrade.co.uk/Catalogue/Workholding/Vee-Blocks-Angle-Plates/Stevensons-Metric-Blocks meteric ones
06:43 AM XXCoder: those look ugly. I like 123 imperial bettr.
06:43 AM XXCoder: somewhat cheap, surpising
06:44 AM miss0r: Why are they ugly? Something abour the proportions that are not easy on the eyes?
06:44 AM XXCoder: yep lol
06:44 AM XXCoder: I suppose if used to meteric it would look normal and 123 looks odd
06:45 AM miss0r: I've never realy used either
06:45 AM miss0r: But lately theres been a few situations, where I could've used a pair
06:45 AM XXCoder: get em
06:45 AM XXCoder: also get a nice way to store em, wood box and all, to protect em
06:46 AM miss0r: wood box?
06:46 AM miss0r: I've never liked to store metal parts in wooden boxes.. They have a way of breathing humidity
06:46 AM XXCoder: yeah some 123 sets come wit em
06:47 AM XXCoder: mine didnt tho
06:47 AM miss0r: I keep all my parallels & simular equipment lined up in a steel drawer, on a rubber mat, so they do not slide around
06:47 AM XXCoder: I 3d printed a stand for em, it started to have slight corrison (my room is usually quite humid) so I ziploc it with dissecant. stopped that
06:48 AM miss0r: Nice. I do keep my 0-150mm micrometer set in a wooden box, that it came in. But theres quite a few of those silicon granulate bags in there to handle humidity
06:49 AM XXCoder: my 1980s starret mic is in my filiments box because its nice and dry
06:49 AM XXCoder: my current room is usually pretty good tho, unlike my old room which usually had 60% or worse humidity
06:49 AM miss0r: Yeah, you gotta be carefull with your micrometers :)
06:49 AM miss0r: damn
06:49 AM XXCoder: yeah all 3 of mine is in great condition, even 1950s one I use at work :)
06:49 AM miss0r: I don't know what the humidity is in here honnestly. But I don't have any issues with rust forming
06:50 AM XXCoder: generally 40% is ok
06:51 AM jthornton: I keep the big shop at 45%
06:53 AM miss0r: I run an automated dehimidifyer in here. but I cannot ajust the percentage. Atleast I don't know how. :) but it keeps it nice and dry in here
06:53 AM XXCoder: nice
06:54 AM miss0r: its part of my aircon/heating system
06:57 AM XXCoder: nice
06:58 AM XXCoder: wish sho[ i work at have that lol
06:58 AM miss0r: Its been good to be during the summer. Not my electrical bill, though
07:03 AM XXCoder: yeah lol
07:03 AM XXCoder: well night laters :)
07:06 AM miss0r: later
07:18 AM sensille: motion planning question... i'm currently building a controller where you can feed jerk+time pairs per axis, meaning you set a constant jerk for the specified duration. i'm thinking of extending this to giving a 3rd degree polynomial for jerk instead. does that makes sense? or could i just as well give the polynomial for the position?
07:20 AM sensille: hard to find a channel to discuss this kind of questions...
07:22 AM SpeedEvil: What software are you feeding it with, and wwhat latency does that have?
07:23 AM sensille: no software yet, i want to write the full stack if possible
07:23 AM SpeedEvil: That will set the complexity of motion planning you need, and how much you can do in the controller without rolling it back all the way into the machine with a deep understanding.
07:23 AM SpeedEvil: If your task is 'follow curve' doing it independantly per axis pretty much inherently for example means you can't slow down if there is an issue.
07:23 AM sensille: but the interface to the controller is currently uart
07:24 AM sensille: the goal is full jerk control
07:24 AM sensille: and exact 1/256th microstepping
07:25 AM sensille: so pre-calculating step data doesn't make much sense
07:26 AM sensille: transferring polynomials would reduce the amount of data to transfer and also reduce the necessary calculations
07:27 AM sensille: and enhance precision
07:38 AM sensille: i should be able to get a decent circle with just a few segments
07:47 AM SpeedEvil: If you are trying to optimise data transfer, as a design requirement, that sounds like doing it wrong.
07:47 AM SpeedEvil: Unless there are other constraints.
07:49 AM sensille: i'm trying to optimize the result
07:50 AM sensille: of course there are constraints. motion planning should run on an orange pi
07:51 AM SpeedEvil: Step 0 would be to measure what latency you get with representative test software.
07:51 AM sensille: "latency"?
07:51 AM sensille: where is that relevant?
07:51 AM sensille: i have queues
07:52 AM SpeedEvil: What is the frequency you can control in software up to, and what is the jitter in that. That determines where along the spectrum you are from 'upload g-code' to 'control steppers in software'.
07:52 AM sensille: the target step frequency is in the MHz
07:52 AM sensille: makes no sense to control that in software
07:53 AM sensille: way cheaper to add the $10 fpga
07:59 AM gregcnc: did you see TinyG?
08:00 AM sensille: yes
08:02 AM rmu|w: does 256 microstepping really make sense? steppers are not that accurate or linear.
08:02 AM sensille: you mean as they're already doing jerk control i can discuss motion planning with them?
08:02 AM sensille: rmu|w: not for positioning, but for smoothness of motion
08:04 AM sensille: and i think for jerk control it makes sense to use the full microstepping resolution the driver provides (tmc2130 in my case)
08:07 AM rmu|w: i don't think you will notice much difference to 16 microsteps, and then only at very low speeds
08:07 AM sensille: probably. but that would take the fun out it for me :)
08:08 AM sensille: anyway, the basic questions are the same, just with different frequencies
08:08 AM sensille: how to do proper jerk control on curves
08:10 AM rmu|w: you "just" have to find a proper parametrisation of you curve with time as parameter so that no acceleration or jerk limits are violated
08:11 AM sensille: and what function to use for the curve? calculating sin/cos or even solving fresnel integrals for each step is a bit impractical
08:12 AM pcw_home: jerk control by itself is pretty trivial, integrating it with features that a complete TP has like adaptive feed is not
08:12 AM sensille: so i though of approximating it with 3rd order polynomials
08:12 AM rmu|w: sensille: i meant curve as the path you want
08:13 AM pcw_home: also for general CNC use jerk limiting is typically only useful for tangential acceleration
08:14 AM gloops: http://www.dailymail.co.uk/money/cars/article-6113739/Dyson-plans-clean-electric-car-market-new-200million-UK-test-track.html?ns_mchannel=rss&ito=1490&ns_campaign=1490
08:15 AM pcw_home: that is for centripetal accel its defined by the profile and feed rate
08:17 AM sensille: i have to admit i'm building this for a 3d printer
08:17 AM sensille: and want to achieve a constant extrusion rate, at the expense of minor path deviations
08:40 AM rmu|w: sensille: that is a completely different kind of fight you pick there ;)
08:41 AM sensille: yeah, i was hoping to find someone here to discuss some mathematics of motion planning. already tried at #reprap
08:42 AM sensille: but the answer is always "no, that's not how it's done"
08:46 AM gregcnc: https://youtu.be/yiXdyWxnd8E this guy is working on the same?
08:47 AM sensille: interesting, thanks
08:51 AM gregcnc: he has links to his blog on other clips
08:53 AM sensille: especially i want to avoid the 'extruder advance' stuff by just keeping the extrusion speed constant
08:54 AM roycroft: hi folks
08:54 AM roycroft: do any of you use active noise-cancelling wired headphones in the shop?
08:55 AM roycroft: i'm having a hard time determining 1. what the effective noise reduction is on most models (manufacturers don't like to publish that spec), and 2. whether the high end ones like the bose are really worth 4-6x as much as the more entry level ones
08:55 AM JT-Shop: what did he say, I couldn't hear him
08:56 AM roycroft: it seems most people get them for flying, and say that they work fine for getting rid of engine noise but complain that they can still hear crying babies
08:57 AM gregcnc: I think many are made so you can hear people speak
08:57 AM sync: the bose bluetooth ones are pretty ok
08:57 AM sync: but yeah they are not really made to isolate you completely
08:57 AM roycroft: i've decided that the "standard shop practice" of wearing good earmuffs and then cranking the tunes up so you can hear them over the ambient shop noise is kind of dumb
08:58 AM roycroft: and wearing earbuds underneath the earmuffs is annoying
08:58 AM mozmck: From all I've heard, bose has a history of suing people to eliminate objective comparisons between their stuff and anyone else's.
08:58 AM roycroft: yeah, i don't want bluetooth ones
08:59 AM roycroft: that may be why i'm having a hard time finding credible reviews
08:59 AM sync: idk I would not want a wired headphone in the shop
08:59 AM roycroft: and would be a good reason to avoid bose on principle :)
08:59 AM roycroft: sync: it's no big deal
08:59 AM mozmck: I have heard from a couple of guys who sold audio eqipment years ago that bose was inferior in their opinion to other stuff they sold. I would expect it's roughly the same now.
08:59 AM roycroft: i wear the wire underneath my shirt and my ipod is in a back pocket
09:00 AM sync: yes, but that is annoying
09:00 AM sync: yeah mozmck
09:00 AM sync: but tbh, the ANC stuff they have is pretty good
09:00 AM roycroft: my expectation is not unrealistic, i think
09:00 AM roycroft: 21-24dB of noise reduction would be fine
09:00 AM mozmck: I'm sure it's decent, but probably not 6x in price more decent :-)
09:01 AM roycroft: the earmuffs i normally use now claim 30dB noise reduction
09:01 AM sensille: roycroft: how about CIEMs?
09:01 AM sync: well, sennheiser is not far off
09:01 AM roycroft: and i could live with less
09:01 AM sync: so idk
09:01 AM roycroft: bose don't even like people comparing various models within their own lineup
09:01 AM roycroft: at least, people don't do that much
09:02 AM roycroft: they have a wired model with a street price of $179, and a similar bluetooth model for $100 more
09:02 AM sync: I just got otoplastics after all, because wearing earmuffs got old
09:02 AM roycroft: but i can't find any useful reviews/descriptions that discuss any difference other than the bluetooth
09:02 AM mozmck: https://www.cnet.com/topics/headphones/best-headphones/noise-canceling/
09:02 AM mozmck: https://www.techradar.com/news/audio/portable-audio/best-noise-cancelling-headphones-1280490
09:03 AM mozmck: Both of those list a sony as best, but doesn't look any cheaper than bose!
09:03 AM sync: no, they all cost about the same
09:04 AM roycroft: and that article doesn't say anything useful about the quality of noise cancelling
09:04 AM roycroft: none of them do
09:05 AM sensille: why not use good isolation instead?
09:05 AM roycroft: that would be fine, but again, i don't see headphones that have a useful spec on that
09:05 AM roycroft: anc isn't required
09:06 AM roycroft: the earmuffs i use now claim 30dB of attenuation and they are passive
09:06 AM roycroft: if they had speakers inside i'd be fine with that
09:06 AM sync: then throw in speakers
09:06 AM roycroft: that's what i do now
09:06 AM roycroft: and it's annoying
09:06 AM roycroft: having to keep earbuds inserted and in place and then put the earmuffs over them
09:06 AM roycroft: i'm trying to eliminate that and use one product that does both
09:06 AM sync: no, rip some headphone apart and put it in the earmuff
09:07 AM roycroft: i don't think it's an unreasonable expectation
09:07 AM roycroft: it's not that simple
09:07 AM roycroft: the speakers don't work in isolation - their performance depends on the enclosure they're in
09:08 AM roycroft: i'll keep researching
09:08 AM sync: it doesn't matter that much
09:08 AM roycroft: i just thought someone here might have already sorted this out
09:08 AM sync: we've done it before
09:08 AM sync: it works acceptably well
09:08 AM sync: the problem is that there is no such product on the market
09:08 AM roycroft: again, i'm not being unrealistic
09:08 AM roycroft: i don't expect audiophile quality performance
09:09 AM sync: I've been looking for the same solution for a while and there just is none
09:09 AM roycroft: hell - i use apple earbuds on a regular basis
09:09 AM roycroft: so i'm accustomed to semi-shite perfomance
09:09 AM sync: well then why do you argue that just throwing in speakers doesn't work
09:09 AM sync: just do it
09:09 AM sync: and you'll see that it works well enough
09:09 AM roycroft: i'll consider giving that a go
09:09 AM roycroft: i revisit this problem occasionally - i've been looking for something decent for a long time
09:10 AM sync: you can also buy the leight sync earmuffs but the sound sucks in them
09:10 AM roycroft: ironically, my recent acquisition of a festool extractor, which is way more quiet than a standard shop vac, got me thinking about it again
09:10 AM sync: there now is some 3M earmuff with bluetooth, after ages
09:10 AM roycroft: my ipod doesn't have bluetooth
09:10 AM sync: but it seems nobody has this problem
09:11 AM sensille: custom in-ear can have a very high attenuation
09:11 AM roycroft: although i suppose i could get a bluetooth transmitter for it
09:11 AM sync: then get something that has bluetooth
09:11 AM sync: it is 2018 after all
09:11 AM roycroft: i like the ipod
09:11 AM roycroft: it is tiny and weighs almost nothing
09:11 AM roycroft: and lasts for tens of hours on a charge
09:11 AM roycroft: anyway, it's time to head off to the office
09:11 AM roycroft: thanks for the input
09:12 AM roycroft: i'll consider a frankenstein setup :)
10:05 AM fragalot: hey
10:36 AM roycroft: i should mention also that part of my aversion to bluetooth is dramatically reduced battery life
10:37 AM roycroft: and i would have to deal with batteries both in the headphones and the sound-transmitting device
10:37 AM * fragalot agrees with the above
10:37 AM fragalot: I like the 3.5mm jack.
10:37 AM sensille: my ath-m50x has decent isolation
10:38 AM roycroft: yes, i do too
10:38 AM sensille: though i don't have numbers
10:38 AM roycroft: and it really is no hassle at all to run the wire underneath my shirt
10:39 AM roycroft: 3m make a "worktunes" hearing protector that has both a bluetooth interface and built-in am/fm radio
10:39 AM roycroft: i had considered the radio issue, becasue i do listen to the radio frequently
10:40 AM roycroft: and the ipod i use does not have an fm receiver
10:40 AM roycroft: but that 3m product does not have a wire
10:41 AM roycroft: actually, when i search for "earmuffs with speakers" i get a lot more relevant hits than searching for "noise reduction headphones"
10:42 AM roycroft: the former returns primarily products designed for work environments, while the latter is primarily for airline travel
10:42 AM roycroft: at least that's what most of the products in the latter search like to talk about
10:45 AM roycroft: aha!
10:45 AM roycroft: here's a worktunes with an auxiliary jack
10:45 AM roycroft: 24dB noise reduction
10:45 AM gloops: well, quickly made a tilting vertical work surface with quick release clamps this morning, then had to go out and now going fishing, so no dovetailing vids as yet
10:45 AM roycroft: https://www.3m.com/3M/en_US/company-us/all-3m-products/~/3M-Digital-WorkTunes-Hearing-Protector-and-AM-FM-Stereo-Radio-featuring-Voice-Assist/?N=5002385+3294427467&rt=rud
10:46 AM roycroft: that might be the ticket
10:46 AM roycroft: and they're #45
10:46 AM roycroft: $45
10:47 AM roycroft: worth a go
10:47 AM roycroft: if they were $200, more research would be required
10:49 AM roycroft: some folks complain that the volume is too low
10:50 AM roycroft: i would not be using the bluetooth interface, so that would probably not be an issue for me, although if the radio volume is also low that could be a problem
10:53 AM roycroft: aah, folks are saying that the volume control does not work in bluetooth mode - only with the radio
11:00 AM Stephanisk: Hello everyone
11:00 AM sync: roycroft: yeah, but I mean one charges all the devices at the end of the day so meh
11:01 AM Stephanisk: Finally figured out the registration procedure thanks to the forum
11:02 AM roycroft: i don't always charge all devices at the end of the day
11:02 AM roycroft: sometimes i forget something
11:02 AM roycroft: at any rate, i found that 3m on amazon for $45, and i have $20 in rewards points
11:04 AM roycroft: and i needed some more 476mp anyway, and was waiting until i ordered something else off amazon to get it
11:04 AM roycroft: 467mp, rather
11:04 AM * roycroft is dystypic today, as every day
11:17 AM HexaCube: sup folks
11:33 AM jthornton: lunch not supper
11:35 AM roycroft: supper is lunch in the south
11:55 AM jdh: not
11:58 AM roycroft: it was when i was a kid and traveled to the south
11:58 AM roycroft: supper was the mid-day meal, and dinner the evening meal
11:59 AM roycroft: it's been a long long time since i was a kid though - mayhap that's changed
12:02 PM fragalot: good god this schaublin table is heavy :D
12:03 PM mozmck: roycroft: not that I've ever heard - dinner is midday, supper evening meal
12:03 PM fragalot: it's right up there with "I certainly COULD lift this, but I /REALLY/ shouldn't"
12:04 PM mozmck: but I suppose that could vary depending on where in the south you are.
12:05 PM roycroft: my relatives who lived in the south were not the sharpest tacks i've ever known
12:06 PM roycroft: but i was confused when we had supper at lunchtime
12:06 PM roycroft: kentucky and tennessee were where my relatives lived
12:07 PM roycroft: i must say though, that the relatives in south-central illionis had the thickest southern drawl i've ever heard
12:07 PM roycroft: i had a hard time understanding them
12:07 PM roycroft: illinois, dammit
12:08 PM roycroft: southern illinois is in a different universe from the chicago area, where i grew up
12:19 PM jdh: illinois is wtf north
12:39 PM JesusAlos: hi
12:51 PM roycroft: southern illinois is more southern than any place i've ever been in the south
12:52 PM roycroft: but yes, i am aware of the relationship of illinois and the mason-dixon line
01:30 PM fragalot: has anyone ever had a mill table reground? (euro style so no ways involved)
01:31 PM fragalot: it's basically a gigantic (relatively speaking) angle plate
01:32 PM fragalot: it's mostly flat, except for one spot near the center where it looks like someone's crashed it
01:32 PM fragalot: otherwise there are just the usual 2nd hand marks like milled areas & one rather large hole
01:33 PM fragalot: another option could be to fill them up & leave it be otherwise as the table itself, generally speaking, is still perfectly flat
01:33 PM fragalot: and stone down the high spot
01:34 PM CaptHindsight: I have a bridgeport where they filled the holes with weld nearly to the top
01:34 PM fragalot: I think I'll pass on that suggestion :P
01:34 PM * fragalot runs off to take a picture of what he's talking about
01:34 PM CaptHindsight: someday I might rebuild it
01:36 PM CaptHindsight: roycroft: the south has become more sophisticated in their humor in the past couple decades ...
01:38 PM fragalot: https://photos.app.goo.gl/PWqiRt1V2d5LKA1f9
01:39 PM fragalot: also - I'm still really impressed with this schaublin.. I literally just lifted the table on there, bolted it down, and there is zero movement if I run the indicator along the table..µ
01:40 PM fragalot: ignoring the obvious marks, of course
01:40 PM sync: I would not do anything to that table
01:40 PM CaptHindsight: roycroft: https://youtu.be/A-eYpRIgCtk?t=2m48s Hee-Haw Full Episode (70's-90's) vs 0's to today https://www.foxnews.com
01:41 PM CaptHindsight: fragalot: I'd leave it
01:42 PM * fragalot sits back down
01:42 PM fragalot: I guess :)
01:57 PM robotustra: is there any way to read spindle rpm via linuxcncrsh?
01:58 PM robotustra: +buttons https://imgur.com/iDOmbtc
02:45 PM CaptHindsight: lathe with belt sanding attachment $575!! https://chicago.craigslist.org/chc/hvo/d/sundstrand-machine-lathe/6674522481.html
02:48 PM robotustra: and trancportation will be like $1k
02:48 PM robotustra: if not more
02:48 PM CaptHindsight: to the Ukraine
02:49 PM robotustra: anybody lcnc developer online in here?
02:49 PM robotustra: ukraine has it's own scrap machines
02:49 PM CaptHindsight: robotustra: just ask the actual question
02:49 PM robotustra: ^^
02:49 PM robotustra: < robotustra> is there any way to read spindle rpm via linuxcncrsh?
02:50 PM robotustra: I did'nt find in it a description
02:50 PM CaptHindsight: linuxcncrsh − text-mode interface for commanding LinuxCNC over the network
02:51 PM robotustra: I know
02:51 PM robotustra: it doesn't mean that it can't read RPMs
02:51 PM CaptHindsight: if the machines spindle encoder is tied to HAL then you can use linuxcncrsh to read it
02:52 PM robotustra: ok
02:52 PM robotustra: mit means it's equivalent to halui but via telnet?
02:52 PM robotustra: *it
02:53 PM CaptHindsight: not exactly
02:53 PM CaptHindsight: it can use telnet and similar
02:55 PM robotustra: is there any rsh for linuxcnc via network with all set of functions of halui, but without exporting of pins?
02:56 PM CaptHindsight: is that what you actually want?
02:57 PM robotustra: I want MyGUI <-> linuxcncrsh <-> linuxcnc
02:57 PM robotustra: to be able to run gui on any computer and tablet
02:58 PM robotustra: and use it as a dro/console at the machine
02:58 PM CaptHindsight: you can do it over X
02:58 PM robotustra: I would like to do it over network
02:58 PM robotustra: 21st century outdoor
02:58 PM CaptHindsight: X opver the network
02:59 PM CaptHindsight: yeah, mill while at the beach
02:59 PM robotustra: it's overkill
02:59 PM CaptHindsight: see machinekit
02:59 PM CaptHindsight: no such thing as overkill
02:59 PM robotustra: what is machinekit?
03:00 PM XXCoder: fork of linuxcnc
03:00 PM CaptHindsight: http://www.machinekit.io/
03:00 PM robotustra: I'm writing my gui and I see 2 options: 1) use halui api to connect 2) use linuxcncrsh to connect via network
03:03 PM CaptHindsight: maybe somebody should write an NML wrapper/converter
03:05 PM CaptHindsight: new doesn't mean better, especially when it come to anything web based
03:05 PM robotustra: I don't want web based
03:06 PM robotustra: I do gui in qt/c++
03:07 PM robotustra: on this image http://www.machinekit.io/docs/code/Machinekit-block-diagram-small.png I want gui to be a linuxcncrsh and be able to communicate with it via tcp/ip
03:07 PM robotustra: from any gui client
03:08 PM CaptHindsight: how about forking LCNC and making it also use Vulkan for the graphics?
03:08 PM robotustra: no need
03:09 PM CaptHindsight: https://www.khronos.org/vulkan/
03:09 PM robotustra: I'm too old for bullshit
03:09 PM CaptHindsight: then the devs could merge whatever they wish into LCNC
03:10 PM CaptHindsight: same as we did with RTAI
03:10 PM XXCoder: “With enhanced developer tools, rigorous conformance testing and the public Vulkan Ecosystem Forum, Khronos is delivering on its goal to develop a complete and vibrant Vulkan ecosystem. Vulkan 1.1 is a response to prioritized industry requests and shows our commitment to delivering a functional roadmap driven by developer needs.”
03:10 PM XXCoder: total bullshitium
03:10 PM robotustra: so, your answer is that linuxcncrsh is not full fledged replacement to communicate with HAL?
03:10 PM XXCoder: also... I won buzzword bingo with that
03:11 PM CaptHindsight: try this one https://en.wikipedia.org/wiki/Vulkan_(API)
03:13 PM robotustra: Looking at their architecture desing my butt fills that vulcan will fail, because of hipster approach
03:14 PM robotustra: Vulkan drivers do no error checking at runtime;
03:14 PM robotustra: there is a validation layer for developers
03:14 PM CaptHindsight: they had to appeal to hipsters
03:14 PM robotustra: poenGL forever
03:14 PM robotustra: opengl
03:16 PM robotustra: I don't play (much) games, I need to mill real things...
03:17 PM CaptHindsight: if you want it in LCNC then you'll have to write it
03:17 PM CaptHindsight: or work with it as is
03:18 PM robotustra: it looks like I'll try to do something from halui+linuxcncrsh to make a network gate to connect gui
03:20 PM CaptHindsight: sure, maybe someone else will be interested or help
03:20 PM CaptHindsight: post on the LCNC forums as well
03:20 PM robotustra: I'm interested, that's enouph for myself :)
03:21 PM robotustra: first I have to try
03:21 PM robotustra: myself
03:21 PM robotustra: if something work - show to others
03:21 PM CaptHindsight: someone else might have already started
03:22 PM robotustra: if it's not finished yet - it doesn't count
03:22 PM CaptHindsight: OK
03:22 PM robotustra: I thought that there is a GUI in linuxcnc
03:22 PM robotustra: but it isn't
03:33 PM * JT-Shop wonders what will dissolve clear packing tape???
03:36 PM Rab: I think it's polyester, so maybe this is relevant: https://www.usplastic.com/knowledgebase/article.aspx?contentkey=569
03:36 PM Tecan: https://www.thingiverse.com/thing:3047007 my shot pouring machine works
03:36 PM CaptHindsight: JT-Shop: the tape or just the adhesive?
03:36 PM Rab: Looks pretty tough, only vulnerable to the typical nasty suspects.
03:37 PM JT-Shop: the tape, I got some exhaust tubing and they used a mile of tape
03:37 PM CaptHindsight: aircraft acid paint remover
03:38 PM JT-Shop: hmm Rab looks like I'll have to scrape and clean the glue with acetone like I've been doing
03:39 PM CaptHindsight: polymers like polyester are pretty tough, thats why they use them for tape, coatings and clothing
03:39 PM * JT-Shop goes back to work
03:39 PM CaptHindsight: and low cost ~$2/lb
03:41 PM CaptHindsight: mix the acetone with a glycol to slow the evaporation
03:45 PM Lcvette: hello
03:48 PM XXCoder: https://interestingengineering.com/15-cool-and-creative-bike-designs-that-could-change-cycling lol
03:48 PM XXCoder: some of em is pretty strange
03:51 PM CaptHindsight: https://static.interestingengineering.com/images/AUGUST/sizes/Di-Cycle_resize_md.jpg
03:52 PM CaptHindsight: I'd like a portable version of this that folds into a backpack
03:52 PM XXCoder: not very likely
03:53 PM CaptHindsight: it should spring out like Mr Gadget's gadgets
03:53 PM XXCoder: go go gadget dual wheel
03:53 PM CaptHindsight: Inspector even
03:54 PM CaptHindsight: https://www.youtube.com/watch?v=L__Rfiy-zes Evolution of Game Music | 1972-2017
03:55 PM CaptHindsight: I'm going to add sounds to LCNC
03:55 PM CaptHindsight: womp womp when tool breaks
03:55 PM fragalot: CaptHindsight: bit tunes using chatter?
03:56 PM XXCoder: halo is 17 years old or so already
03:56 PM CaptHindsight: cheering when part completes
03:58 PM CaptHindsight: https://www.youtube.com/watch?v=y4We5q8aTWQ this plays after the file loads but I haven't pressed start yet
03:59 PM XXCoder: hmm I dont recall that scene
03:59 PM CaptHindsight: it was about 2 seconds long
03:59 PM CaptHindsight: https://www.youtube.com/watch?v=s-UjB94LyYY
04:00 PM XXCoder: lol interesting
04:00 PM XXCoder: loved that movie
04:00 PM CaptHindsight: watch it, love it, live it
04:01 PM XXCoder: ugh not the last step
04:02 PM MarcelineVQ: Good luck avoiding that last step :>
04:07 PM Deejay: gn8
04:32 PM JT-Shop: Tom_L: what does run from line do different now?
05:20 PM _unreal_: sup
05:20 PM XXCoder: yo
05:20 PM _unreal_: So I installed the official asus tinkerboard debian build
05:21 PM _unreal_: But I dont have a GOOD stand. the stand that came with the @#$@#$ touch screen monitor broke trying to put it to geather
05:22 PM XXCoder: put it to leather?
05:22 PM XXCoder: no wonder it broke. ;)
05:22 PM XXCoder: I saw new york car today
05:22 PM XXCoder: pretty amazing
06:03 PM JesusAlos: -
06:05 PM JesusAlos: Hi
06:07 PM XXCoder: hey
06:07 PM XXCoder: hey^2
06:08 PM JesusAlos: Are all the people on holiday?
06:09 PM XXCoder: holiday is monday
06:09 PM XXCoder: its just getting late for majority of people here, but not me lol
06:10 PM JesusAlos: What's your location?
06:10 PM XXCoder: washington state
06:12 PM JesusAlos: I'm in Spain, near to go to sleep...
06:12 PM pink_vampire: hi
06:12 PM XXCoder: hey pink!
06:13 PM JesusAlos: hi
06:25 PM _unreal_: the stand is acrylic....
06:25 PM _unreal_: cheap BS
06:25 PM _unreal_: and shiny
06:25 PM XXCoder: shiny? thats all it matters. lol
06:25 PM _unreal_: damn straight
06:26 PM XXCoder: I just bought 6 bucks 3d pen
06:26 PM _unreal_: ?
06:26 PM _unreal_: link
06:26 PM XXCoder: probably utter shit but it covers amazon minium nicely lol
06:26 PM XXCoder: https://www.amazon.com/IDRAWING-MSI00229-Printing-1-75-Filament/dp/B01N5WUKIB
06:26 PM XXCoder: I bought last cheap one
06:26 PM _unreal_: ya I've had to make a few purchases because I was a few pasos $$ shy of the minimum for free shipping
06:26 PM XXCoder: heyy its 37 bucks now. was 33
06:28 PM _unreal_: cordless?
06:28 PM _unreal_: hum interesting
06:28 PM XXCoder: nah it took me a bit to find little line saying it has plug in
06:28 PM _unreal_: not exactly my cup of pee tea
06:28 PM XXCoder: yeah I always wanted one but not expensive because I probably would discard it. 6 bucks is perfect
06:29 PM _unreal_: ! speaking of getting stuff that reminds me I need to find DIRT cheap 90 degree HDMI and micro USBC cables
06:29 PM _unreal_: this display I got needs them to fit into the box I'm considering
06:29 PM XXCoder: does dollar cables store still exist?
06:30 PM XXCoder: there was website with lots cheap different cables
06:30 PM XXCoder: https://www.cablewholesale.com/
06:31 PM XXCoder: not site im thinking but seems ok on deals
06:33 PM MarcelineVQ: we you thinking of monoprice?
06:34 PM XXCoder: nah it was older site
06:34 PM XXCoder: I think it was literally dollarcables.com or something like that
06:42 PM JesusAlos: Good night
07:00 PM _unreal_: this is promising
07:00 PM _unreal_: https://www.amazon.com/degree-Standard-brushless-handhold-monitoring/dp/B06Y4N7Q8K/ref=asc_df_B06Y4N7Q8K/?tag=hyprod-20&linkCode=df0&hvadid=241899609306&hvpos=1o1&hvnetw=g&hvrand=18332150526668277319&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9012012&hvtargid=pla-454570958303&psc=1
07:00 PM XXCoder: wow pretty flat
07:03 PM _unreal_: exactly what I'm looking for by design
07:09 PM _unreal_: I need to get 2 of these https://www.amazon.com/Ribbon-Cable-degree-standard-charging/dp/B0784M2X2C
07:09 PM _unreal_: sucks but if I use the tough case I'm looking at...
07:20 PM _unreal_: God I hate to spend the money but I'm looking at $60 for the cables and an other item :p
07:23 PM XXCoder: yeah its so expensive for unfinished cable
07:35 PM _unreal_: Next i'm looking for the cheapest set of one of these https://www.amazon.com/slp/e-stop/6md59dkmfqqt4at
07:36 PM _unreal_: cool https://shop.pimoroni.com/products/cluster-hat?variant=22064645063&gclid=CjwKCAjwzqPcBRAnEiwAzKRgS5_2wd1y4_vbgiCezFSrwgu3277iQK31m6m0YwY07oqI-H9FPbx9WxoCWekQAvD_BwE
07:41 PM _unreal_: There added a few of these to my list
07:41 PM _unreal_: https://www.amazon.com/Emergency-Stop-Switch-TOOGOO-Mushroom/dp/B01G6PAN4K/ref=sr_1_1?ie=UTF8&qid=1535762354&sr=8-1&keywords=estop+button&dpID=41e4lQ5QRYL&preST=_SY300_QL70_&dpSrc=srch
07:41 PM pink_vampire: lol
07:41 PM pink_vampire: don't save on E-stop
07:42 PM _unreal_: ?
07:42 PM _unreal_: I dont know what you mean
07:42 PM pink_vampire: https://www.galco.com/buy/ABB/CE4T-10R-02?source=googleshopping&gclid=EAIaIQobChMIjZqWlcmY3QIVAlYNCh2yUQGXEAQYBCABEgJPWvD_BwE
07:42 PM pink_vampire: this is just an example
07:43 PM pink_vampire: https://www.galco.com/get/Switches
07:44 PM roycroft: what pink_vampire is saying is to not pinch pennies on the thing that may save your life or your machine
07:44 PM roycroft: the adjective you are looking for when shopping for an e-stop switch is "reliable", not "cheap"
07:44 PM pink_vampire: correct!
07:45 PM _unreal_: dude thats $30
07:45 PM _unreal_: I'm not paying that
07:45 PM pink_vampire: let me show you something
07:46 PM * roycroft refers _unreal_ to the comments he made some moments ago
07:46 PM _unreal_: pink_vampire, I have a shit load of SOLID state high power relays
07:46 PM pink_vampire: https://i.imgur.com/h5oX28h.png
07:46 PM _unreal_: I dont need to control HIGH power
07:46 PM roycroft: because ssrs fail open
07:46 PM roycroft: oh wait!
07:46 PM Tom_L: JT-Shop still around?
07:46 PM roycroft: they tend to fail closed!
07:46 PM Tom_L: probably not...
07:46 PM roycroft: oops! you're fried!
07:47 PM roycroft: you do have contactors in front of those ssrs though
07:47 PM _unreal_: I have a bunch of $140 solid state relays
07:47 PM _unreal_: salaveged from machines
07:47 PM roycroft: so as long as you keep the contactor pads clean it's unlikely that a contactor will fail closed at the same time the ssr it's protecting fails
07:47 PM _unreal_: they take 3-5v support dc and AC upto 240 40amp
07:47 PM pink_vampire: if you think the E-stop is expensive, look at the main switch https://i.imgur.com/g5E2X1W.png
07:47 PM _unreal_: control 3-5v
07:48 PM * roycroft knows how a ssr works
07:48 PM Tom_L: anybody know where 'run from line' is documented?
07:48 PM pink_vampire: ssr as e-stop.. yeah.. lol
07:48 PM Tom_L: instead of yammering on be useful tonight :D
07:48 PM _unreal_: I'm also setting my system up with a charge pump.....
07:48 PM roycroft: i ALWAYS put a contactor in front of a ssr
07:48 PM roycroft: ALWAYS
07:48 PM _unreal_: nothing can turn on till linuxcnc starts the charge pump
07:49 PM _unreal_: if the charge pump looses signal. everything dies
07:49 PM roycroft: on the high current side, that is
07:50 PM pink_vampire: https://www.shopcross.com/product/abb-ohys2pj-selector-handle-use-ot16-32ft-disconnector-switches?gclid=EAIaIQobChMIp7Hz_sqY3QIVUj0MCh3pQgFuEAQYAyABEgKy9fD_BwE
07:50 PM pink_vampire: look
07:51 PM roycroft: it is the beginning of a holiday weekend, and i don't have the time nor patience right now to try to turn this into a useful conversation
07:51 PM roycroft: so i'll leave you with one more thought before parting
07:52 PM pink_vampire: https://www.galco.com/buy/ABB/OT40FT3?source=googleshopping&gclid=EAIaIQobChMIqbzWn8uY3QIVDlYNCh2FJAx5EAYYASABEgIQkvD_BwE
07:52 PM pink_vampire: this is the actual switch
07:52 PM roycroft: consider the worst case scenario with your control system, and realise that the e-stop button is designed to save you from that scenario
07:54 PM _unreal_: Thats why I'm putting 2 estops. one on each side of the machine
07:54 PM roycroft: ok, that was the penultimate thought
07:54 PM roycroft: the real last thought is this:
07:54 PM pink_vampire: this is similar to the contactor i'm using https://www.galco.com/buy/ABB/NFZ71E-20
07:54 PM roycroft: if you cheap out on other components, it is all the more important to ensure that, no matter what happens, you can pound on the e-stop button and be confident that your machine will come to a halt
07:55 PM _unreal_: Thats why I'm setting it up with a charge pump.......
07:55 PM pink_vampire: charge pump?!
07:55 PM _unreal_: the charge pump MUST recive a signal from linux CNC
07:55 PM _unreal_: ido you know what a charge pump is?
07:55 PM _unreal_: its FOR safty
07:56 PM pink_vampire: i know and it is nice for the low voltage
07:56 PM roycroft: how does a charge pump help if you pound on your e-stop button and the e-stop button does not engage/disengage?
07:56 PM pink_vampire: you have spindle, servos, etc..
07:57 PM _unreal_: roycroft, ? wtf
07:57 PM _unreal_: https://www.hardware-cnc.nl/en/shop/interface-breakoutboards/divers-interface/c4-safety-charge-pump-detail
07:57 PM _unreal_: you dont know what I'm talking about then
07:57 PM roycroft: yes, i do
07:57 PM XXCoder: _unreal_: my coworker ripped his hand off with minor mistake. some things you do NOT skimp on, and that is safety
07:58 PM roycroft: this is the part of the conversation i don't have time for :)
07:58 PM Tom_L: XXCoder how's he doin?
07:58 PM XXCoder: I have estop but havent wired it, as I didnt finish working on machine. its not running now
07:58 PM roycroft: so hopefully others will be able to carry on
07:58 PM XXCoder: pink_vampire: man I love your cabinet
07:58 PM XXCoder: I need to make smaller one for my machine lol
07:59 PM pink_vampire: it is mostly empty.. I just like the way it look
07:59 PM * roycroft wonders if _unreal_ has ever experienced a genuine, catastrophic "oh shit" moment
08:00 PM _unreal_: roycroft, no.... I have not really because I'm very safty oriented... hence my OSHA card in my wallet and other certs.....
08:00 PM pink_vampire: _unreal_: in case you hit the E-stop you need to KILL THE MAIN POWER in the most simple way.
08:00 PM _unreal_: btw I use to be a nurse for many years and a med tech....
08:00 PM Tom_L: osha 10 cards are easy to come by
08:00 PM jdh: I'm saftier than you
08:00 PM _unreal_: Tom_L, lol ya easy to come back just 20 hours of class and 4 hours of horror video
08:01 PM Tom_L: 1 day here
08:01 PM _unreal_: back=by
08:01 PM Tom_L: i don't bother to carry mine
08:01 PM pink_vampire: you CAN"T use electronic logic for that, becase you are killing the main power AKA POWER SUPPLY
08:01 PM _unreal_: I have to I work in the marine industry
08:01 PM Tom_L: i feel much unsafer without it
08:02 PM pink_vampire: and VERY important, if your Z axis like to drop ADD a brake to it.
08:03 PM _unreal_: roycroft, by your discription then your claiming the estop on a pendent is useless then
08:03 PM Tom_L: or at least don't craw under it to clean the chip tray
08:03 PM Tom_L: my pendant has an estop
08:03 PM Tom_L: I think.
08:03 PM Tom_L: i've never used it
08:03 PM _unreal_: Tom_L, does it carry the main power ;)
08:04 PM _unreal_: if it doesnt you should remove it its useless according to those guys
08:04 PM pink_vampire: _unreal_: I hope for you we are talking about an engraver with name 17 motors, and not a real mill.
08:04 PM Tom_L: i agree that an Estop should kill the main source of energy to the mill
08:05 PM pink_vampire: Tom_L: the E-stop on the pendant is SOFT E-stop.
08:05 PM _unreal_: Thats why I'm setting mine up with a multi kill system
08:05 PM Tom_L: pink, i know that
08:05 PM _unreal_: that can all tie into the same
08:05 PM flyback: http://www.randombugs.com/linux/fuck-in-linux-kernel.html
08:05 PM flyback: never gets old
08:05 PM _unreal_: I'm going to have 3 kills 2 on the machine one on each side and one on pendent
08:06 PM _unreal_: all part of the charge pump...... if the machine freezes the charge pump goes KOA..... if any of the switches are hit the charge pump is stopped and the mains is killed
08:07 PM _unreal_: hell I could set it up with voice command as well
08:07 PM pink_vampire: Tom_L: e try to tell him the right way, but if he decide to save on his safety after he know the right way, this is his life
08:07 PM pink_vampire: we*
08:07 PM flyback: watchdog timer
08:07 PM flyback: bmcc
08:07 PM * flyback cuntpunts _unreal_
08:07 PM skunkworks: http://electronicsam.com/images/greenmachine/20180831_162717.jpg
08:07 PM Tom_L: pink, we learn in different ways.
08:07 PM _unreal_: flyback, there trying to tell me to use expensive HUGE estops for soft control
08:07 PM flyback: what's that
08:07 PM Tom_L: skunkworks do you know where to find docs on 'run from line' ?
08:08 PM flyback: you know
08:08 PM flyback: I bought a wifi plug for $5
08:08 PM flyback: I was going to recode it make it secure
08:08 PM flyback: the chip is a rare weird arch
08:08 PM _unreal_: ?
08:08 PM flyback: ok still willing to give it a go since they have a freertos port and sdk
08:08 PM Tom_L: skunkworks, just don't turn the spindle on....
08:08 PM flyback: then I found out, no watchdog timer
08:08 PM flyback: FUCK THAT NOISE
08:08 PM * flyback tosses it
08:09 PM _unreal_: flyback, https://www.amazon.com/gp/product/B01G6PAN4K/ref=ox_sc_act_title_1_1_1?smid=A3G3SQGWUPUX9W&psc=1
08:09 PM pink_vampire: BTW my HF VFD is still on the machine table in a zip-lock bag and no E-stop.
08:09 PM flyback: yeah whoever invented those will get his own universe to play with
08:09 PM flyback: after he dies
08:09 PM pink_vampire: https://www.youtube.com/watch?v=6qYsNtrscPs
08:10 PM skunkworks: Tom_L: what problem are you having?
08:10 PM flyback: for all the millions of lives he saved
08:10 PM Tom_L: skunkworks, none i just wondered if there were docs on it
08:10 PM Tom_L: do you know when it was introduced to lcnc?
08:10 PM Tom_L: about the same time as the trajectory planner?
08:11 PM skunkworks: Tom_L: it is plugged in in such a way that it should unplug if the spindle was turned on.
08:11 PM Tom_L: ahh good idea
08:11 PM skunkworks: 'should'
08:11 PM Tom_L: heh yea
08:12 PM skunkworks: idk about rfl... i use it often.
08:12 PM Tom_L: i tried it the other day... damn handy thing
08:12 PM pink_vampire: _unreal_: which machine do you have??
08:12 PM _unreal_: I have not built it
08:13 PM _unreal_: i'm still gathering parts for the big machine, just got my motors
08:13 PM Tom_L: pink_vampire, homebrew gantry
08:13 PM _unreal_: I have a small machine that I'm going to get going finally been years litteraly
08:13 PM _unreal_: I'm having my hardware pro. milled for me
08:13 PM pink_vampire: mill?, engraver?
08:13 PM pink_vampire: servo? stepper?
08:14 PM _unreal_: the home one would be light duty mill/engraver... the big one I'm working on will be heavy duty mill
08:14 PM _unreal_: may be the weekend but I need to feed my child back later
08:15 PM Tom_L: skunkworks, did it come out square?
08:17 PM pink_vampire: servo, is much faster then stepper, and DC servo can chop your hand EASY if the encoder or the encoder wire fail (it basically run in full speed of the motor (in my case 3000 rpm) to one direction and hit the limit switch that kill the main power.
08:20 PM pink_vampire: I know you think it is just a cool machine, but on a benchtop mill you can get huge amount of force that can crush stuff easy, like wires, oil can, body parts, tools, parts, and so on.
08:20 PM pink_vampire: _unreal_: ^
08:26 PM pink_vampire: as long you are play with "toys like 3d printers/ small engravers" it will not damage anything, but if you go with something more hefty, electronic E-stop and poor china made safety parts can put you and your machine in real danger.
08:26 PM pink_vampire: hope for you not to learn it the hard way.
08:27 PM XXCoder: even when engraving, wear googles
08:27 PM XXCoder: *goggles
08:28 PM pink_vampire: but carbide can make your eyes look much more interesting + you will have a story,
08:28 PM XXCoder: lol
08:30 PM pink_vampire: I have 32239849 photos on my phones, and it is soooo annoying to use the phone as camera and the irc on the computer
08:30 PM XXCoder: what just 3 million pics?
08:30 PM pink_vampire: 32M
08:31 PM XXCoder: ah miscounted digits lol
08:31 PM XXCoder: mine dont total to 20
08:31 PM pink_vampire: I mean a-lot
08:31 PM pink_vampire: %^**9209312312
08:31 PM XXCoder: mines just 20! ;)
08:31 PM * flyback bites pink_vampire
08:31 PM flyback: BMCC
08:32 PM pink_vampire: like gazillion
08:32 PM flyback: for _unreal_
08:33 PM flyback: https://www.youtube.com/watch?v=fNuI6keQXYA
08:33 PM flyback: sfw
08:33 PM pink_vampire: flyback: where is the E-stop?
08:34 PM pink_vampire: i ant to see it stop on the spot
08:34 PM flyback: 1920s
08:34 PM XXCoder: huge mass also
08:35 PM flyback: that's the housing spinning
08:35 PM flyback: not the shaft
08:35 PM flyback: it was a starting method
08:35 PM flyback: notice it puts backspin on the shaft
08:36 PM XXCoder: interesting
08:37 PM flyback: don't need that anymore thx to rugged winding and starting caps
08:39 PM roycroft: has someone talked some sense into _unreal_ yet?
08:40 PM XXCoder: some people gonna learn hard way. even when its just engraver
08:40 PM pink_vampire: https://www.youtube.com/watch?v=o3t2390k5R8, he got excited by 60K and then...
08:41 PM roycroft: something else that begs mention is that "oh shit" moments can happen no matter how safe one is
08:42 PM flyback: yeha some people are
08:42 PM flyback: STUPID CANUCKS
08:42 PM flyback: STUPID CANUCKS
08:42 PM flyback: i LOST A friend because I tore him a new one
08:42 PM flyback: for buying a cutting laser first, mask 2nd
08:42 PM roycroft: ok
08:42 PM roycroft: this is the best thing that happened today:
08:42 PM roycroft: https://www.youtube.com/watch?v=s66grYJ5DDs
08:43 PM pink_vampire: flyback: sound like A laser cutter,
08:44 PM flyback: this is better https://www.youtube.com/watch?v=J8M5MHFns1o
08:45 PM * flyback recites poetry from highschool 25 yrs ago
08:45 PM flyback: BEAT
08:45 PM flyback: BEAT
08:45 PM flyback: DRUMS
08:45 PM flyback: BEAT
08:45 PM flyback: BEAT
08:45 PM flyback: DRUMS
08:46 PM roycroft: no, sorry
08:46 PM roycroft: the welsh guard paying tribute to aretha is by far the best thing that happened in the world today
08:47 PM skunkworks: Tom_L: pretty good.. <.001" both directions
08:47 PM roycroft: and al sharpton politicising her death one of the worst things that happened today
08:47 PM roycroft: i'll go watch the welsh guard again :)
08:50 PM pink_vampire: https://www.youtube.com/watch?v=2fuYj4trEGg ...
10:35 PM _unreal_: ok so debian is upgrading on my tinker board
10:56 PM enleth: have you ever seen drill chucks that can be safely used keyless but do have a key slot/hole for when you really need it?
10:57 PM enleth: I'm starting to grow a little tired of keyless drill chucks that either won't grip properly on one hand, or won't come loose on the other
10:58 PM XXCoder: pink_vampire: man I never liked titan channel. always moving always brief shots
10:58 PM XXCoder: I hate those
11:01 PM enleth: yeah, too many cuts, too hammy
11:01 PM enleth: *way* too hammy
11:01 PM _unreal_: enleth, are you talking about a big one for something like a rotory or a lathe?
11:02 PM enleth: _unreal_: all of them - handheld drills, corded and cordless, drill press chucks, lathe tailstock chucks
11:02 PM roycroft: use collets :)
11:02 PM enleth: I've had all of those stuck at some point
11:04 PM _unreal_: any thing that has multi moving parts is likely to bind
11:04 PM _unreal_: at some point in time
11:04 PM enleth: I'm really starting to think they should all at the very least come with flats ground/cut on both the rotating shell and the base, so that if it comes to the worst, you could take two large wrenches and fix it
11:04 PM enleth: but no, it's just knurled
11:04 PM enleth: or ribbed if it's plastic, or whatever
11:05 PM enleth: and then it's strap wrench time, or vise grips with some scrap rubber/leather
11:06 PM enleth: or whacking the drill on the side with a hammer, works sometimes
11:06 PM enleth: I mean, the drill bit
11:13 PM roycroft: i do the vice grips/channel locks with a strip of leather thing upon occasion
11:14 PM roycroft: but i do leatherwork, so i always have bits of leather laying around
11:27 PM enleth: I just did that to get a drill bit out of my corded drill
11:28 PM XXCoder: enleth: indeed!