#linuxcnc | Logs for 2018-08-31

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[00:01:25] <_unreal_> sdfit booted
[00:01:35] <_unreal_> it booted
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[00:40:45] <rue_> anyone here have a cnc laser machine?
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[00:59:17] <flyback> hey rue_
[00:59:24] <flyback> how are you doing these days?
[00:59:26] <flyback> ok?
[00:59:28] <rue_> I'm ok
[00:59:31] <flyback> good :)
[00:59:34] <flyback> CANUCK :)
[00:59:40] <rue_> what power led laser doya think I need to cut tinfoil?
[00:59:45] <flyback> last time we chatted I still had my teeth :(
[01:00:08] <flyback> rue_, dunno but whatever you do
[01:00:09] <flyback> please
[01:00:17] <fragalot> hi
[01:00:18] <flyback> built a full shield all around it
[01:00:37] <flyback> all it takes if a reflection off a cutting surface and you got a fucked eyeball for life
[01:00:55] <fragalot> rue_: I'm not sure they make LED lasers in the right wavelength for tin foil?
[01:01:05] <flyback> waigt
[01:01:09] <flyback> led lasters are a thing?
[01:01:11] <rue_> I thik you coat the tinfoil in soemthing for cutting
[01:01:13] <rue_> like black ink
[01:01:22] <fragalot> Hm.
[01:01:24] <flyback> some people don't th ink about reflections
[01:01:26] <flyback> and it gets them
[01:01:34] <fragalot> flyback: most*
[01:01:35] <flyback> or causes a fire
[01:01:57] <fragalot> even with an enclosure I still feel more comfortable with a pair of laser glasses on
[01:02:06] <flyback> yeah
[01:02:08] <fragalot> however, with lasers, if there is a window; you are not the only one around it.
[01:02:19] <flyback> that too
[01:02:24] <flyback> your kids etc :(
[01:03:21] <flyback> there's a very old safety video on welding and torches
[01:03:24] <flyback> very heart breaking
[01:03:49] <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
[01:04:00] <flyback> thats a welding torch to the fact
[01:04:10] <flyback> lvies but will never get to "see" his kid
[01:04:37] <flyback> the other nasty one is high psi lines
[01:04:47] <flyback> guys accidentely injecting grease into their veins etc
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[01:05:26] <flyback> yeah rue_ glad to see you are still around
[01:05:49] <flyback> im still fighting some health issues, lost the battle with gum diease that killed all the tooth roots, but still kicking for now
[01:06:36] <flyback> <flyback> thats a welding torch to the fact
[01:06:42] <flyback> takes a welding torch to the fact
[01:06:53] <flyback> the next time hexchat silentely autocorrects after I disabled it
[01:07:00] <flyback> I am going to send a dev a death threat
[01:07:01] <flyback> :P
[01:07:05] <fragalot> xD
[01:07:25] <flyback> it did it again
[01:07:27] <flyback> face
[01:08:27] <rue_> ok, then, I'll do it with EDM, thanks
[01:09:20] <fragalot> rue_: to do it properly you'd have needed fiber anyway.. I'm not sure if that black spray really works /THAT/ well
[01:10:54] <flyback> no laser is fine
[01:11:01] <flyback> just saying if you build your own
[01:11:07] <flyback> be sure to think about reflections
[01:13:16] <Wolf__> do not look into laser with remaining eye
[01:14:23] <flyback> COURSE you might not be able to buy one
[01:14:34] <flyback> thanks to dipshits who shine them at aircraft
[01:15:25] <rue_> 0.5mm graphite edm
[01:15:27] <rue_> np
[01:17:39] <Wolf__> diode laser wont touch any metals https://i.imgur.com
[01:19:16] <tiwake> Wolf__: I have a 30 watt diode laser
[01:20:05] <Wolf__> cuts metals?
[01:20:16] <tiwake> melts optics... heh
[01:20:21] <rue_> tinfoil
[01:20:34] <tiwake> haven't had proper crap to set it up and crap
[01:20:37] <rue_> its ok, I'lluse 0.5mm graphite EDM
[01:21:51] <tiwake> Wolf__: I'd like a 100+watt laser for cutting thin crap, maybe 300watts or so for cutting steels, or more
[01:22:15] <tiwake> but such will probably never happen... I'd rather get a waterjet machine :3
[01:22:17] <rue_> TINFOIL
[01:22:22] <rue_> aluminum tinfoil
[01:22:37] <rue_> the question is getting blown way out of proportion
[01:22:53] <tiwake> I'm going back to bed
[01:24:26] <flyback> water jet
[01:25:04] <MarcelineVQ> nooo, the cutworm moths are back, damn you late august
[01:25:29] <rue_> flyback, dude, encoder wheels
[01:25:38] <rue_> 0.5mm graphite EDM
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[01:26:22] <flyback> ok
[01:26:41] <flyback> graphite is a insteresting material
[01:26:54] <MarcelineVQ> Carbon is probably the most interesting element in general
[01:27:09] <flyback> I mean graphite and coke aren't very strong
[01:27:19] <flyback> but they can take levels of heat where metals turn to gas
[01:28:21] <flyback> MarcelineVQ, activated carbon is really neat
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[01:28:26] <fragalot> graphene IS super strong, flyback
[01:28:39] <flyback> the purest grade for medical etc is made from waste coconut shells
[01:30:44] <flyback> also makes a wicked charcoal
[01:31:39] <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
[01:32:17] <flyback> well they use coconut shells a lot
[01:32:18] <MarcelineVQ> This form of charcoal is also excellent to break apart and add to a garden after soaking it in a nitrogen source
[01:32:22] <flyback> to make charcoal
[01:32:29] <flyback> in thailand
[01:33:11] <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
[01:33:11] <flyback> but I rather them use it to make activated carbon and wood for charcoal
[01:33:23] <MarcelineVQ> coar mightt be husk not shell actually
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[01:33:41] <flyback> it sucks pollutants and medicines out of wastewater
[01:34:13] <flyback> hmm come to think of it
[01:34:18] <flyback> since carbon can do high temps
[01:34:37] <flyback> you could then heat the activated carbon to break down what was collected
[01:34:55] <rue_> and when it oxidizes
[01:36:26] <flyback> that might not be bad
[01:36:43] <flyback> if it staYS TOGETHER long enough to thermally destroy the captured chemicals
[01:38:30] <flyback> rue_, have you seen pics of activated carbon
[01:38:31] <flyback> the inside
[01:38:34] <flyback> it's crazy shit
[01:38:57] <flyback> rmemeber the next generation star trek episode with the enterprise hiding inside a asteroid
[01:39:00] <flyback> there you go
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[01:43:26] <flyback> rue_, https://upload.wikimedia.org
[01:44:47] <veek> it's wood heated without O2 to make charcoal.. and then?
[01:44:54] <rue_> yea, I was saying I'll turn a mechanical pencil into a foil-cutting cnc machine.
[01:46:02] <veek> powder; add cacl+h2o; paste bake
[01:47:20] <rue_> what this button do?....
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[03:08:41] <Deejay> moin
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[04:00:15] <MarcelineVQ> 12 cutworm moths kille so far tonight, bleh
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[04:15:58] <selroc> log
[04:15:58] <c-log> selroc: Today's Log http://tom-itx.no-ip.biz:81
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[05:20:06] <fragalot> 'ello
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[06:09:36] <jthornton> morning
[06:11:44] <Tom_L> morning
[06:15:20] <gloops> https://www.facebook.com
[06:15:56] <XXCoder> lol
[06:16:04] <XXCoder> thats more expensive than many chineseium ones
[06:16:11] <gloops> my Chinese CNC, workable size is 300x200mm, lots of tools with it.
[06:16:21] <gloops> meh, the mrs says i dont need it
[06:16:29] <XXCoder> ahh mrs ta
[06:16:31] <XXCoder> tax
[06:16:34] <gloops> i thought that XXCoder lol
[06:17:22] <gloops> i dunno 12x8 - some are better than others
[06:17:42] <XXCoder> not making money with it?
[06:17:55] <Tom_L> gloops is she an expert on those matters?
[06:18:01] <gloops> doesnt look like it, unless he is and upgrading
[06:19:10] <gloops> Tom_L shes probably right heh, tis just down the road thats the main interest, would be ok for 80 maybe
[06:19:44] <XXCoder> honestly if you have materials its much cheaper to just buy electrics kit and build rest
[06:19:47] <gloops> would only spend 200 on it anyway
[06:21:16] <gloops> yeah XXCoder, actually i could build a decent small one now - cut parts with mine
[06:21:26] <gloops> i dont need one, stick to the plan lol
[06:21:32] <XXCoder> :)
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[07:29:40] <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"
[07:29:46] <miss0r> https://www.ebay.co.uk
[07:29:50] <miss0r> I'm scared now
[07:30:44] <miss0r> shit.. theres alot more of that stuff there.
[07:30:47] * miss0r is leaving
[07:31:48] <XXCoder> miss0r: lol
[07:32:18] <miss0r> yeah... not my cup'o tea
[07:32:40] <XXCoder> nor mine, I suppose besides the... fun aspect, it might help some people pee stright
[07:33:13] <miss0r> is that what it is for?!
[07:33:25] <XXCoder> nah no idea what its for honestly
[07:33:34] <miss0r> I was thinking something along the line of a 'prince albert' piercing
[07:33:36] <XXCoder> weird stuff like that? likely "fun" stuff
[07:33:56] <miss0r> who in their right mind would, willingly, shove stuff like that up their pee-hole?
[07:34:02] * miss0r is amazed
[07:34:11] <XXCoder> people do strange stuff
[07:34:49] <miss0r> Yeah... some of the people doing stuff like that, would call me a sadist for being selfemployed I guess :()
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[07:36:51] <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 ?
[07:36:57] <miss0r> (in centimeters)
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[07:38:33] <XXCoder> not too sure on dims but yeah it exist
[07:38:40] <XXCoder> doesnt look as good as 123 tho!
[07:39:43] <XXCoder> apparently 25 x 50 x 75mm ?
[07:39:53] <miss0r> hmm
[07:40:12] <miss0r> https://www.ebay.co.uk
[07:40:14] <miss0r> looks alright
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[07:40:31] <XXCoder> I laughed my ass off when I first saw this. https://www.thingiverse.com
[07:40:48] <XXCoder> all 123 worth is in its precison. and that has none.
[07:41:00] <miss0r> wtf
[07:41:06] <miss0r> Is that 3D printed or something? :D
[07:41:10] <XXCoder> it is
[07:41:33] <miss0r> that is useless, if I ever saw something
[07:41:33] <jthornton> it's great toy for a kid that want's to be a machinist lol
[07:41:37] <XXCoder> discription says its for depostability when you dont care about precision
[07:41:50] <miss0r> Well.. that v-block with the clamp jig can be used for *something* I guess
[07:42:06] <XXCoder> I plan to print one as joke evenually
[07:42:29] <miss0r> hehe. Even when "I don't care about precision" I would never use something THAT out of square lol
[07:42:30] <XXCoder> https://www.arceurotrade.co.uk meteric ones
[07:42:49] <XXCoder> those look ugly. I like 123 imperial bettr.
[07:43:08] <XXCoder> somewhat cheap, surpising
[07:43:46] <miss0r> Why are they ugly? Something abour the proportions that are not easy on the eyes?
[07:43:55] <XXCoder> yep lol
[07:44:11] <XXCoder> I suppose if used to meteric it would look normal and 123 looks odd
[07:44:38] <miss0r> I've never realy used either
[07:44:53] <miss0r> But lately theres been a few situations, where I could've used a pair
[07:44:59] <XXCoder> get em
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[07:45:12] <XXCoder> also get a nice way to store em, wood box and all, to protect em
[07:46:04] <miss0r> wood box?
[07:46:21] <miss0r> I've never liked to store metal parts in wooden boxes.. They have a way of breathing humidity
[07:46:23] <XXCoder> yeah some 123 sets come wit em
[07:46:39] <XXCoder> mine didnt tho
[07:46:45] <miss0r> I keep all my parallels & simular equipment lined up in a steel drawer, on a rubber mat, so they do not slide around
[07:47:14] <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
[07:48:01] <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
[07:48:43] <XXCoder> my 1980s starret mic is in my filiments box because its nice and dry
[07:49:03] <XXCoder> my current room is usually pretty good tho, unlike my old room which usually had 60% or worse humidity
[07:49:03] <miss0r> Yeah, you gotta be carefull with your micrometers :)
[07:49:11] <miss0r> damn
[07:49:24] <XXCoder> yeah all 3 of mine is in great condition, even 1950s one I use at work :)
[07:49:25] <miss0r> I don't know what the humidity is in here honnestly. But I don't have any issues with rust forming
[07:50:11] <XXCoder> generally 40% is ok
[07:50:36] <jthornton> I keep the big shop at 45%
[07:53:00] <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
[07:53:11] <XXCoder> nice
[07:54:25] <miss0r> its part of my aircon/heating system
[07:57:26] <XXCoder> nice
[07:57:46] <XXCoder> wish sho[ i work at have that lol
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[07:58:14] <miss0r> Its been good to be during the summer. Not my electrical bill, though
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[08:03:07] <XXCoder> yeah lol
[08:03:14] <XXCoder> well night laters :)
[08:06:00] <miss0r> later
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[08:18:14] <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?
[08:19:42] <sensille> hard to find a channel to discuss this kind of questions...
[08:21:57] <SpeedEvil> What software are you feeding it with, and wwhat latency does that have?
[08:22:32] <sensille> no software yet, i want to write the full stack if possible
[08:22:33] <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.
[08:23:11] <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.
[08:23:16] <sensille> but the interface to the controller is currently uart
[08:23:41] <sensille> the goal is full jerk control
[08:24:03] <sensille> and exact 1/256th microstepping
[08:24:37] <sensille> so pre-calculating step data doesn't make much sense
[08:26:20] <sensille> transferring polynomials would reduce the amount of data to transfer and also reduce the necessary calculations
[08:26:27] <sensille> and enhance precision
[08:37:44] <sensille> i should be able to get a decent circle with just a few segments
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[08:46:34] <SpeedEvil> If you are trying to optimise data transfer, as a design requirement, that sounds like doing it wrong.
[08:46:41] <SpeedEvil> Unless there are other constraints.
[08:48:37] <sensille> i'm trying to optimize the result
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[08:49:52] <sensille> of course there are constraints. motion planning should run on an orange pi
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[08:50:26] <SpeedEvil> Step 0 would be to measure what latency you get with representative test software.
[08:50:35] <sensille> "latency"?
[08:50:50] <sensille> where is that relevant?
[08:51:17] <sensille> i have queues
[08:51:27] <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'.
[08:51:59] <sensille> the target step frequency is in the MHz
[08:52:20] <sensille> makes no sense to control that in software
[08:53:19] <sensille> way cheaper to add the $10 fpga
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[08:59:05] <gregcnc> did you see TinyG?
[08:59:55] <sensille> yes
[09:01:27] <rmu|w> does 256 microstepping really make sense? steppers are not that accurate or linear.
[09:01:37] <sensille> you mean as they're already doing jerk control i can discuss motion planning with them?
[09:02:07] <sensille> rmu|w: not for positioning, but for smoothness of motion
[09:04:05] <sensille> and i think for jerk control it makes sense to use the full microstepping resolution the driver provides (tmc2130 in my case)
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[09:06:35] <rmu|w> i don't think you will notice much difference to 16 microsteps, and then only at very low speeds
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[09:07:19] <sensille> probably. but that would take the fun out it for me :)
[09:07:35] <sensille> anyway, the basic questions are the same, just with different frequencies
[09:07:48] <sensille> how to do proper jerk control on curves
[09:09:55] <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
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[09:11:24] <sensille> and what function to use for the curve? calculating sin/cos or even solving fresnel integrals for each step is a bit impractical
[09:11:39] <pcw_home> jerk control by itself is pretty trivial, integrating it with features that a complete TP has like adaptive feed is not
[09:11:43] <sensille> so i though of approximating it with 3rd order polynomials
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[09:12:12] <rmu|w> sensille: i meant curve as the path you want
[09:12:29] <pcw_home> also for general CNC use jerk limiting is typically only useful for tangential acceleration
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[09:13:43] <gloops> http://www.dailymail.co.uk
[09:14:31] <pcw_home> that is for centripetal accel its defined by the profile and feed rate
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[09:16:44] <sensille> i have to admit i'm building this for a 3d printer
[09:17:14] <sensille> and want to achieve a constant extrusion rate, at the expense of minor path deviations
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[09:40:22] <rmu|w> sensille: that is a completely different kind of fight you pick there ;)
[09:41:10] <sensille> yeah, i was hoping to find someone here to discuss some mathematics of motion planning. already tried at #reprap
[09:41:56] <sensille> but the answer is always "no, that's not how it's done"
[09:45:37] <gregcnc> https://youtu.be this guy is working on the same?
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[09:47:18] <sensille> interesting, thanks
[09:47:41] <gregcnc> he has links to his blog on other clips
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[09:51:43] <sensille> in detail it looks quite different, though
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[09:53:13] <sensille> especially i want to avoid the 'extruder advance' stuff by just keeping the extrusion speed constant
[09:53:57] <roycroft> hi folks
[09:54:16] <roycroft> do any of you use active noise-cancelling wired headphones in the shop?
[09:55:20] <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
[09:55:22] <JT-Shop> what did he say, I couldn't hear him
[09:56:24] <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
[09:57:03] <gregcnc> I think many are made so you can hear people speak
[09:57:15] <sync> the bose bluetooth ones are pretty ok
[09:57:23] <sync> but yeah they are not really made to isolate you completely
[09:57:26] <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
[09:57:52] <roycroft> and wearing earbuds underneath the earmuffs is annoying
[09:58:08] <mozmck> From all I've heard, bose has a history of suing people to eliminate objective comparisons between their stuff and anyone else's.
[09:58:12] <roycroft> yeah, i don't want bluetooth ones
[09:58:28] <roycroft> that may be why i'm having a hard time finding credible reviews
[09:58:57] <sync> idk I would not want a wired headphone in the shop
[09:58:58] <roycroft> and would be a good reason to avoid bose on principle :)
[09:59:09] <roycroft> sync: it's no big deal
[09:59:26] <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.
[09:59:26] <roycroft> i wear the wire underneath my shirt and my ipod is in a back pocket
[09:59:35] <sync> yes, but that is annoying
[09:59:42] <sync> yeah mozmck
[09:59:50] <sync> but tbh, the ANC stuff they have is pretty good
[10:00:07] <roycroft> my expectation is not unrealistic, i think
[10:00:19] <roycroft> 21-24dB of noise reduction would be fine
[10:00:25] <mozmck> I'm sure it's decent, but probably not 6x in price more decent :-)
[10:00:34] <roycroft> the earmuffs i normally use now claim 30dB noise reduction
[10:00:37] <sensille> roycroft: how about CIEMs?
[10:00:37] <sync> well, sennheiser is not far off
[10:00:40] <roycroft> and i could live with less
[10:00:44] <sync> so idk
[10:01:14] <roycroft> bose don't even like people comparing various models within their own lineup
[10:01:21] <roycroft> at least, people don't do that much
[10:01:50] <roycroft> they have a wired model with a street price of $179, and a similar bluetooth model for $100 more
[10:02:03] <sync> I just got otoplastics after all, because wearing earmuffs got old
[10:02:08] <roycroft> but i can't find any useful reviews/descriptions that discuss any difference other than the bluetooth
[10:02:17] <mozmck> https://www.cnet.com
[10:02:25] <mozmck> https://www.techradar.com
[10:02:42] <mozmck> Both of those list a sony as best, but doesn't look any cheaper than bose!
[10:03:15] <sync> no, they all cost about the same
[10:03:55] <roycroft> and that article doesn't say anything useful about the quality of noise cancelling
[10:04:00] <roycroft> none of them do
[10:04:37] <sensille> why not use good isolation instead?
[10:05:06] <roycroft> that would be fine, but again, i don't see headphones that have a useful spec on that
[10:05:14] <roycroft> anc isn't required
[10:05:32] <roycroft> the earmuffs i use now claim 30dB of attenuation and they are passive
[10:05:41] <roycroft> if they had speakers inside i'd be fine with that
[10:05:48] <sync> then throw in speakers
[10:05:53] <roycroft> that's what i do now
[10:05:55] <roycroft> and it's annoying
[10:06:10] <roycroft> having to keep earbuds inserted and in place and then put the earmuffs over them
[10:06:19] <roycroft> i'm trying to eliminate that and use one product that does both
[10:06:24] <sync> no, rip some headphone apart and put it in the earmuff
[10:06:28] <roycroft> i don't think it's an unreasonable expectation
[10:06:44] <roycroft> it's not that simple
[10:07:14] <roycroft> the speakers don't work in isolation - their performance depends on the enclosure they're in
[10:07:32] <roycroft> i'll keep researching
[10:07:42] <sync> it doesn't matter that much
[10:07:44] <roycroft> i just thought someone here might have already sorted this out
[10:07:47] <sync> we've done it before
[10:07:51] <sync> it works acceptably well
[10:08:03] <sync> the problem is that there is no such product on the market
[10:08:03] <roycroft> again, i'm not being unrealistic
[10:08:13] <roycroft> i don't expect audiophile quality performance
[10:08:30] <sync> I've been looking for the same solution for a while and there just is none
[10:08:31] <roycroft> hell - i use apple earbuds on a regular basis
[10:08:40] <roycroft> so i'm accustomed to semi-shite perfomance
[10:08:44] <sync> well then why do you argue that just throwing in speakers doesn't work
[10:08:46] <sync> just do it
[10:08:52] <sync> and you'll see that it works well enough
[10:09:08] <roycroft> i'll consider giving that a go
[10:09:24] <roycroft> i revisit this problem occasionally - i've been looking for something decent for a long time
[10:09:39] <sync> you can also buy the leight sync earmuffs but the sound sucks in them
[10:10:00] <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
[10:10:14] <sync> there now is some 3M earmuff with bluetooth, after ages
[10:10:22] <roycroft> my ipod doesn't have bluetooth
[10:10:23] <sync> but it seems nobody has this problem
[10:10:27] <sensille> custom in-ear can have a very high attenuation
[10:10:36] <roycroft> although i suppose i could get a bluetooth transmitter for it
[10:10:39] <sync> then get something that has bluetooth
[10:10:46] <sync> it is 2018 after all
[10:10:47] <roycroft> i like the ipod
[10:10:53] <roycroft> it is tiny and weighs almost nothing
[10:11:04] <roycroft> and lasts for tens of hours on a charge
[10:11:17] <roycroft> anyway, it's time to head off to the office
[10:11:22] <roycroft> thanks for the input
[10:11:29] <roycroft> i'll consider a frankenstein setup :)
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[11:04:33] <fragalot> hey
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[11:36:24] <roycroft> i should mention also that part of my aversion to bluetooth is dramatically reduced battery life
[11:36:55] <roycroft> and i would have to deal with batteries both in the headphones and the sound-transmitting device
[11:37:14] * fragalot agrees with the above
[11:37:21] <fragalot> I like the 3.5mm jack.
[11:37:26] <sensille> my ath-m50x has decent isolation
[11:37:30] <roycroft> yes, i do too
[11:37:39] <sensille> though i don't have numbers
[11:37:40] <roycroft> and it really is no hassle at all to run the wire underneath my shirt
[11:38:51] <roycroft> 3m make a "worktunes" hearing protector that has both a bluetooth interface and built-in am/fm radio
[11:39:18] <roycroft> i had considered the radio issue, becasue i do listen to the radio frequently
[11:39:28] <roycroft> and the ipod i use does not have an fm receiver
[11:39:44] <roycroft> but that 3m product does not have a wire
[11:41:00] <roycroft> actually, when i search for "earmuffs with speakers" i get a lot more relevant hits than searching for "noise reduction headphones"
[11:41:37] <roycroft> the former returns primarily products designed for work environments, while the latter is primarily for airline travel
[11:41:51] <roycroft> at least that's what most of the products in the latter search like to talk about
[11:44:57] <roycroft> aha!
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[11:45:06] <roycroft> here's a worktunes with an auxiliary jack
[11:45:12] <roycroft> 24dB noise reduction
[11:45:12] <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
[11:45:18] <roycroft> https://www.3m.com
[11:45:35] <roycroft> that might be the ticket
[11:46:23] <roycroft> and they're #45
[11:46:26] <roycroft> $45
[11:46:32] <roycroft> worth a go
[11:46:41] <roycroft> if they were $200, more research would be required
[11:49:13] <roycroft> some folks complain that the volume is too low
[11:49:46] <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
[11:52:35] <roycroft> aah, folks are saying that the volume control does not work in bluetooth mode - only with the radio
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[12:00:11] <Stephanisk> Hello everyone
[12:00:23] <sync> roycroft: yeah, but I mean one charges all the devices at the end of the day so meh
[12:00:55] <Stephanisk> Finally figured out the registration procedure thanks to the forum
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[12:01:43] <roycroft> i don't always charge all devices at the end of the day
[12:01:49] <roycroft> sometimes i forget something
[12:02:13] <roycroft> at any rate, i found that 3m on amazon for $45, and i have $20 in rewards points
[12:03:36] <roycroft> and i needed some more 476mp anyway, and was waiting until i ordered something else off amazon to get it
[12:03:52] <roycroft> 467mp, rather
[12:04:10] * roycroft is dystypic today, as every day
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[12:17:10] <HexaCube> sup folks
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[12:32:50] <jthornton> lunch not supper
[12:35:23] <roycroft> supper is lunch in the south
[12:54:27] <jdh> not
[12:58:09] <roycroft> it was when i was a kid and traveled to the south
[12:58:17] <roycroft> supper was the mid-day meal, and dinner the evening meal
[12:58:49] <roycroft> it's been a long long time since i was a kid though - mayhap that's changed
[13:02:13] <fragalot> good god this schaublin table is heavy :D
[13:02:44] <mozmck> roycroft: not that I've ever heard - dinner is midday, supper evening meal
[13:02:45] <fragalot> it's right up there with "I certainly COULD lift this, but I /REALLY/ shouldn't"
[13:03:40] <mozmck> but I suppose that could vary depending on where in the south you are.
[13:04:51] <roycroft> my relatives who lived in the south were not the sharpest tacks i've ever known
[13:05:49] <roycroft> but i was confused when we had supper at lunchtime
[13:06:18] <roycroft> kentucky and tennessee were where my relatives lived
[13:06:43] <roycroft> i must say though, that the relatives in south-central illionis had the thickest southern drawl i've ever heard
[13:06:50] <roycroft> i had a hard time understanding them
[13:06:57] <roycroft> illinois, dammit
[13:07:36] <roycroft> southern illinois is in a different universe from the chicago area, where i grew up
[13:19:19] <jdh> illinois is wtf north
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[13:38:32] <JesusAlos> hi
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[13:50:51] <roycroft> southern illinois is more southern than any place i've ever been in the south
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[13:51:34] <roycroft> but yes, i am aware of the relationship of illinois and the mason-dixon line
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[14:30:11] <fragalot> has anyone ever had a mill table reground? (euro style so no ways involved)
[14:30:28] <fragalot> it's basically a gigantic (relatively speaking) angle plate
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[14:31:43] <fragalot> it's mostly flat, except for one spot near the center where it looks like someone's crashed it
[14:32:07] <fragalot> otherwise there are just the usual 2nd hand marks like milled areas & one rather large hole
[14:32:46] <fragalot> another option could be to fill them up & leave it be otherwise as the table itself, generally speaking, is still perfectly flat
[14:32:56] <fragalot> and stone down the high spot
[14:33:35] <CaptHindsight> I have a bridgeport where they filled the holes with weld nearly to the top
[14:33:53] <fragalot> I think I'll pass on that suggestion :P
[14:34:11] * fragalot runs off to take a picture of what he's talking about
[14:34:14] <CaptHindsight> someday I might rebuild it
[14:35:47] <CaptHindsight> roycroft: the south has become more sophisticated in their humor in the past couple decades ...
[14:38:03] <fragalot> https://photos.app.goo.gl
[14:39:03] <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
[14:39:42] <fragalot> ignoring the obvious marks, of course
[14:39:44] <sync> I would not do anything to that table
[14:40:09] <CaptHindsight> roycroft: https://youtu.be Hee-Haw Full Episode (70's-90's) vs 0's to today https://www.foxnews.com
[14:41:18] <CaptHindsight> fragalot: I'd leave it
[14:42:03] * fragalot sits back down
[14:42:06] <fragalot> I guess :)
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[14:56:50] <robotustra> is there any way to read spindle rpm via linuxcncrsh?
[14:58:05] <robotustra> +buttons https://imgur.com
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[15:44:51] <CaptHindsight> lathe with belt sanding attachment $575!! https://chicago.craigslist.org
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[15:47:37] <robotustra> and trancportation will be like $1k
[15:47:52] <robotustra> if not more
[15:48:22] <CaptHindsight> to the Ukraine
[15:48:35] <robotustra> anybody lcnc developer online in here?
[15:49:01] <robotustra> ukraine has it's own scrap machines
[15:49:07] <CaptHindsight> robotustra: just ask the actual question
[15:49:16] <robotustra> ^^
[15:49:24] <robotustra> < robotustra> is there any way to read spindle rpm via linuxcncrsh?
[15:49:55] <robotustra> I did'nt find in it a description
[15:50:19] <CaptHindsight> linuxcncrsh − text-mode interface for commanding LinuxCNC over the network
[15:50:49] <robotustra> I know
[15:51:10] <robotustra> it doesn't mean that it can't read RPMs
[15:51:24] <CaptHindsight> if the machines spindle encoder is tied to HAL then you can use linuxcncrsh to read it
[15:51:33] <robotustra> ok
[15:51:58] <robotustra> mit means it's equivalent to halui but via telnet?
[15:52:10] <robotustra> *it
[15:52:54] <CaptHindsight> not exactly
[15:53:11] <CaptHindsight> it can use telnet and similar
[15:54:42] <robotustra> is there any rsh for linuxcnc via network with all set of functions of halui, but without exporting of pins?
[15:55:59] <CaptHindsight> is that what you actually want?
[15:56:42] <robotustra> I want MyGUI <-> linuxcncrsh <-> linuxcnc
[15:57:14] <robotustra> to be able to run gui on any computer and tablet
[15:57:34] <robotustra> and use it as a dro/console at the machine
[15:57:49] <CaptHindsight> you can do it over X
[15:58:09] <robotustra> I would like to do it over network
[15:58:24] <robotustra> 21st century outdoor
[15:58:25] <CaptHindsight> X opver the network
[15:58:37] <CaptHindsight> yeah, mill while at the beach
[15:58:37] <robotustra> it's overkill
[15:58:49] <CaptHindsight> see machinekit
[15:58:59] <CaptHindsight> no such thing as overkill
[15:59:11] <robotustra> what is machinekit?
[16:00:01] <XXCoder> fork of linuxcnc
[16:00:13] <CaptHindsight> http://www.machinekit.io
[16:00:24] <robotustra> I'm writing my gui and I see 2 options: 1) use halui api to connect 2) use linuxcncrsh to connect via network
[16:02:48] <CaptHindsight> maybe somebody should write an NML wrapper/converter
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[16:04:43] <CaptHindsight> new doesn't mean better, especially when it come to anything web based
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[16:05:17] <robotustra> I don't want web based
[16:05:29] <robotustra> I do gui in qt/c++
[16:06:42] <robotustra> on this image http://www.machinekit.io I want gui to be a linuxcncrsh and be able to communicate with it via tcp/ip
[16:07:01] <robotustra> from any gui client
[16:08:01] <CaptHindsight> how about forking LCNC and making it also use Vulkan for the graphics?
[16:08:15] <robotustra> no need
[16:08:26] <CaptHindsight> https://www.khronos.org
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[16:08:45] <robotustra> I'm too old for bullshit
[16:08:57] <CaptHindsight> then the devs could merge whatever they wish into LCNC
[16:09:40] <CaptHindsight> same as we did with RTAI
[16:09:48] <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.”
[16:09:54] <XXCoder> total bullshitium
[16:09:59] <robotustra> so, your answer is that linuxcncrsh is not full fledged replacement to communicate with HAL?
[16:10:07] <XXCoder> also... I won buzzword bingo with that
[16:10:38] <CaptHindsight> try this one https://en.wikipedia.org(API)
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[16:13:23] <robotustra> Looking at their architecture desing my butt fills that vulcan will fail, because of hipster approach
[16:13:47] <robotustra> Vulkan drivers do no error checking at runtime;
[16:13:48] <robotustra> there is a validation layer for developers
[16:13:58] <CaptHindsight> they had to appeal to hipsters
[16:14:13] <robotustra> poenGL forever
[16:14:20] <robotustra> opengl
[16:16:15] <robotustra> I don't play (much) games, I need to mill real things...
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[16:17:00] <CaptHindsight> if you want it in LCNC then you'll have to write it
[16:17:19] <CaptHindsight> or work with it as is
[16:18:18] <robotustra> it looks like I'll try to do something from halui+linuxcncrsh to make a network gate to connect gui
[16:19:41] <CaptHindsight> sure, maybe someone else will be interested or help
[16:20:03] <CaptHindsight> post on the LCNC forums as well
[16:20:22] <robotustra> I'm interested, that's enouph for myself :)
[16:20:38] <robotustra> first I have to try
[16:20:41] <robotustra> myself
[16:20:58] <robotustra> if something work - show to others
[16:21:00] <CaptHindsight> someone else might have already started
[16:21:32] <robotustra> if it's not finished yet - it doesn't count
[16:21:46] <CaptHindsight> OK
[16:22:05] <robotustra> I thought that there is a GUI in linuxcnc
[16:22:12] <robotustra> but it isn't
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[16:33:12] * JT-Shop wonders what will dissolve clear packing tape???
[16:35:39] <Rab> I think it's polyester, so maybe this is relevant: https://www.usplastic.com
[16:35:54] <Tecan> https://www.thingiverse.com my shot pouring machine works
[16:36:07] <CaptHindsight> JT-Shop: the tape or just the adhesive?
[16:36:10] <Rab> Looks pretty tough, only vulnerable to the typical nasty suspects.
[16:36:44] <JT-Shop> the tape, I got some exhaust tubing and they used a mile of tape
[16:37:13] <CaptHindsight> aircraft acid paint remover
[16:37:36] <JT-Shop> hmm Rab looks like I'll have to scrape and clean the glue with acetone like I've been doing
[16:38:42] <CaptHindsight> polymers like polyester are pretty tough, thats why they use them for tape, coatings and clothing
[16:39:10] * JT-Shop goes back to work
[16:39:16] <CaptHindsight> and low cost ~$2/lb
[16:41:17] <CaptHindsight> mix the acetone with a glycol to slow the evaporation
[16:44:32] <Lcvette> hello
[16:47:42] <XXCoder> https://interestingengineering.com lol
[16:47:46] <XXCoder> some of em is pretty strange
[16:51:04] <CaptHindsight> https://static.interestingengineering.com
[16:51:39] <CaptHindsight> I'd like a portable version of this that folds into a backpack
[16:52:01] <XXCoder> not very likely
[16:52:45] <CaptHindsight> it should spring out like Mr Gadget's gadgets
[16:52:59] <XXCoder> go go gadget dual wheel
[16:53:13] <CaptHindsight> Inspector even
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[16:54:18] <CaptHindsight> https://www.youtube.com Evolution of Game Music | 1972-2017
[16:54:34] <CaptHindsight> I'm going to add sounds to LCNC
[16:55:04] <CaptHindsight> womp womp when tool breaks
[16:55:09] <fragalot> CaptHindsight: bit tunes using chatter?
[16:55:32] <XXCoder> halo is 17 years old or so already
[16:55:41] <CaptHindsight> cheering when part completes
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[16:57:49] <CaptHindsight> https://www.youtube.com this plays after the file loads but I haven't pressed start yet
[16:58:40] <XXCoder> hmm I dont recall that scene
[16:59:11] <CaptHindsight> it was about 2 seconds long
[16:59:14] <CaptHindsight> https://www.youtube.com
[16:59:33] <XXCoder> lol interesting
[16:59:45] <XXCoder> loved that movie
[17:00:22] <CaptHindsight> watch it, love it, live it
[17:00:38] <XXCoder> ugh not the last step
[17:01:30] <MarcelineVQ> Good luck avoiding that last step :>
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[17:06:28] <Deejay> gn8
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[17:31:39] <JT-Shop> Tom_L: what does run from line do different now?
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[18:19:28] <_unreal_> sup
[18:19:49] <XXCoder> yo
[18:20:12] <_unreal_> So I installed the official asus tinkerboard debian build
[18:20:53] <_unreal_> But I dont have a GOOD stand. the stand that came with the @#$@#$ touch screen monitor broke trying to put it to geather
[18:21:39] <XXCoder> put it to leather?
[18:21:45] <XXCoder> no wonder it broke. ;)
[18:22:18] <XXCoder> I saw new york car today
[18:22:24] <XXCoder> pretty amazing
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[19:02:30] <JesusAlos> -
[19:04:37] <JesusAlos> Hi
[19:06:40] <XXCoder> hey
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[19:06:50] <XXCoder> hey^2
[19:08:19] <JesusAlos> Are all the people on holiday?
[19:09:04] <XXCoder> holiday is monday
[19:09:21] <XXCoder> its just getting late for majority of people here, but not me lol
[19:10:03] <JesusAlos> What's your location?
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[19:10:17] <XXCoder> washington state
[19:11:47] <JesusAlos> I'm in Spain, near to go to sleep...
[19:11:56] <pink_vampire> hi
[19:12:02] <XXCoder> hey pink!
[19:12:29] <JesusAlos> hi
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[19:24:28] <_unreal_> the stand is acrylic....
[19:24:32] <_unreal_> cheap BS
[19:24:39] <_unreal_> and shiny
[19:24:52] <XXCoder> shiny? thats all it matters. lol
[19:25:15] <_unreal_> damn straight
[19:25:31] <XXCoder> I just bought 6 bucks 3d pen
[19:25:36] <_unreal_> ?
[19:25:38] <_unreal_> link
[19:25:42] <XXCoder> probably utter shit but it covers amazon minium nicely lol
[19:25:56] <XXCoder> https://www.amazon.com
[19:26:02] <XXCoder> I bought last cheap one
[19:26:11] <_unreal_> ya I've had to make a few purchases because I was a few pasos $$ shy of the minimum for free shipping
[19:26:14] <XXCoder> heyy its 37 bucks now. was 33
[19:27:29] <_unreal_> cordless?
[19:27:36] <_unreal_> hum interesting
[19:27:47] <XXCoder> nah it took me a bit to find little line saying it has plug in
[19:27:52] <_unreal_> not exactly my cup of pee tea
[19:28:18] <XXCoder> yeah I always wanted one but not expensive because I probably would discard it. 6 bucks is perfect
[19:29:00] <_unreal_> ! speaking of getting stuff that reminds me I need to find DIRT cheap 90 degree HDMI and micro USBC cables
[19:29:14] <_unreal_> this display I got needs them to fit into the box I'm considering
[19:29:23] <XXCoder> does dollar cables store still exist?
[19:29:41] <XXCoder> there was website with lots cheap different cables
[19:30:20] <XXCoder> https://www.cablewholesale.com
[19:30:32] <XXCoder> not site im thinking but seems ok on deals
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[19:33:18] <MarcelineVQ> we you thinking of monoprice?
[19:33:38] <XXCoder> nah it was older site
[19:33:48] <XXCoder> I think it was literally dollarcables.com or something like that
[19:41:51] <JesusAlos> Good night
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[19:59:37] <_unreal_> this is promising
[19:59:39] <_unreal_> https://www.amazon.com
[20:00:03] <XXCoder> wow pretty flat
[20:02:29] <_unreal_> exactly what I'm looking for by design
[20:08:36] <_unreal_> I need to get 2 of these https://www.amazon.com
[20:09:04] <_unreal_> sucks but if I use the tough case I'm looking at...
[20:19:54] <_unreal_> God I hate to spend the money but I'm looking at $60 for the cables and an other item :p
[20:23:05] <XXCoder> yeah its so expensive for unfinished cable
[20:34:55] <_unreal_> Next i'm looking for the cheapest set of one of these https://www.amazon.com
[20:35:56] <_unreal_> cool https://shop.pimoroni.com
[20:40:33] <_unreal_> There added a few of these to my list
[20:40:34] <_unreal_> https://www.amazon.com
[20:40:59] <pink_vampire> lol
[20:41:22] <pink_vampire> don't save on E-stop
[20:41:34] <_unreal_> ?
[20:41:42] <_unreal_> I dont know what you mean
[20:41:55] <pink_vampire> https://www.galco.com
[20:42:12] <pink_vampire> this is just an example
[20:42:53] <pink_vampire> https://www.galco.com
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[20:43:34] <roycroft> what pink_vampire is saying is to not pinch pennies on the thing that may save your life or your machine
[20:44:08] <roycroft> the adjective you are looking for when shopping for an e-stop switch is "reliable", not "cheap"
[20:44:23] <pink_vampire> correct!
[20:44:52] <_unreal_> dude thats $30
[20:44:56] <_unreal_> I'm not paying that
[20:45:05] <pink_vampire> let me show you something
[20:45:33] * roycroft refers _unreal_ to the comments he made some moments ago
[20:45:44] <_unreal_> pink_vampire, I have a shit load of SOLID state high power relays
[20:45:44] <pink_vampire> https://i.imgur.com
[20:45:53] <_unreal_> I dont need to control HIGH power
[20:46:05] <roycroft> because ssrs fail open
[20:46:08] <roycroft> oh wait!
[20:46:10] <Tom_L> JT-Shop still around?
[20:46:12] <roycroft> they tend to fail closed!
[20:46:14] <Tom_L> probably not...
[20:46:17] <roycroft> oops! you're fried!
[20:46:38] <roycroft> you do have contactors in front of those ssrs though
[20:46:41] <_unreal_> I have a bunch of $140 solid state relays
[20:46:46] <_unreal_> salaveged from machines
[20:47:10] <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
[20:47:15] <_unreal_> they take 3-5v support dc and AC upto 240 40amp
[20:47:21] <pink_vampire> if you think the E-stop is expensive, look at the main switch https://i.imgur.com
[20:47:24] <_unreal_> control 3-5v
[20:47:27] * roycroft knows how a ssr works
[20:47:28] <Tom_L> anybody know where 'run from line' is documented?
[20:47:56] <pink_vampire> ssr as e-stop.. yeah.. lol
[20:48:00] <Tom_L> instead of yammering on be useful tonight :D
[20:48:01] <_unreal_> I'm also setting my system up with a charge pump.....
[20:48:12] <roycroft> i ALWAYS put a contactor in front of a ssr
[20:48:16] <roycroft> ALWAYS
[20:48:20] <_unreal_> nothing can turn on till linuxcnc starts the charge pump
[20:48:50] <_unreal_> if the charge pump looses signal. everything dies
[20:48:51] <roycroft> on the high current side, that is
[20:50:09] <pink_vampire> https://www.shopcross.com
[20:50:14] <pink_vampire> look
[20:50:54] <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
[20:51:07] <roycroft> so i'll leave you with one more thought before parting
[20:51:32] <pink_vampire> https://www.galco.com
[20:51:39] <pink_vampire> this is the actual switch
[20:51:44] <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
[20:53:29] <_unreal_> Thats why I'm putting 2 estops. one on each side of the machine
[20:53:31] <roycroft> ok, that was the penultimate thought
[20:53:37] <roycroft> the real last thought is this:
[20:54:05] <pink_vampire> this is similar to the contactor i'm using https://www.galco.com
[20:54:15] <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
[20:54:40] <_unreal_> Thats why I'm setting it up with a charge pump.......
[20:54:57] <pink_vampire> charge pump?!
[20:55:00] <_unreal_> the charge pump MUST recive a signal from linux CNC
[20:55:10] <_unreal_> ido you know what a charge pump is?
[20:55:23] <_unreal_> its FOR safty
[20:55:57] <pink_vampire> i know and it is nice for the low voltage
[20:56:01] <roycroft> how does a charge pump help if you pound on your e-stop button and the e-stop button does not engage/disengage?
[20:56:17] <pink_vampire> you have spindle, servos, etc..
[20:56:31] <_unreal_> roycroft, ? wtf
[20:56:32] <_unreal_> https://www.hardware-cnc.nl
[20:56:37] <_unreal_> you dont know what I'm talking about then
[20:56:42] <roycroft> yes, i do
[20:56:48] <XXCoder> _unreal_: my coworker ripped his hand off with minor mistake. some things you do NOT skimp on, and that is safety
[20:57:35] <roycroft> this is the part of the conversation i don't have time for :)
[20:57:40] <Tom_L> XXCoder how's he doin?
[20:57:40] <XXCoder> I have estop but havent wired it, as I didnt finish working on machine. its not running now
[20:57:43] <roycroft> so hopefully others will be able to carry on
[20:57:50] <XXCoder> pink_vampire: man I love your cabinet
[20:57:59] <XXCoder> I need to make smaller one for my machine lol
[20:58:28] <pink_vampire> it is mostly empty.. I just like the way it look
[20:58:56] * roycroft wonders if _unreal_ has ever experienced a genuine, catastrophic "oh shit" moment
[20:59:34] <_unreal_> roycroft, no.... I have not really because I'm very safty oriented... hence my OSHA card in my wallet and other certs.....
[20:59:43] <pink_vampire> _unreal_: in case you hit the E-stop you need to KILL THE MAIN POWER in the most simple way.
[20:59:46] <_unreal_> btw I use to be a nurse for many years and a med tech....
[20:59:55] <Tom_L> osha 10 cards are easy to come by
[21:00:24] <jdh> I'm saftier than you
[21:00:25] <_unreal_> Tom_L, lol ya easy to come back just 20 hours of class and 4 hours of horror video
[21:00:43] <Tom_L> 1 day here
[21:00:45] <_unreal_> back=by
[21:00:52] <Tom_L> i don't bother to carry mine
[21:01:01] <pink_vampire> you CAN"T use electronic logic for that, becase you are killing the main power AKA POWER SUPPLY
[21:01:02] <_unreal_> I have to I work in the marine industry
[21:01:02] <Tom_L> i feel much unsafer without it
[21:02:14] <pink_vampire> and VERY important, if your Z axis like to drop ADD a brake to it.
[21:02:34] <_unreal_> roycroft, by your discription then your claiming the estop on a pendent is useless then
[21:02:38] <Tom_L> or at least don't craw under it to clean the chip tray
[21:02:54] <Tom_L> my pendant has an estop
[21:03:01] <Tom_L> I think.
[21:03:06] <Tom_L> i've never used it
[21:03:14] <_unreal_> Tom_L, does it carry the main power ;)
[21:03:26] <_unreal_> if it doesnt you should remove it its useless according to those guys
[21:03:27] <pink_vampire> _unreal_: I hope for you we are talking about an engraver with name 17 motors, and not a real mill.
[21:04:16] <Tom_L> i agree that an Estop should kill the main source of energy to the mill
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[21:04:31] <pink_vampire> Tom_L: the E-stop on the pendant is SOFT E-stop.
[21:04:36] <_unreal_> Thats why I'm setting mine up with a multi kill system
[21:04:40] <Tom_L> pink, i know that
[21:04:50] <_unreal_> that can all tie into the same
[21:04:50] <flyback> http://www.randombugs.com
[21:04:54] <flyback> never gets old
[21:05:14] <_unreal_> I'm going to have 3 kills 2 on the machine one on each side and one on pendent
[21:06:20] <_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
[21:06:31] <_unreal_> hell I could set it up with voice command as well
[21:06:38] <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
[21:06:41] <pink_vampire> we*
[21:06:43] <flyback> watchdog timer
[21:06:45] <flyback> bmcc
[21:06:50] * flyback cuntpunts _unreal_
[21:06:51] <skunkworks> http://electronicsam.com
[21:07:11] <Tom_L> pink, we learn in different ways.
[21:07:15] <_unreal_> flyback, there trying to tell me to use expensive HUGE estops for soft control
[21:07:25] <flyback> what's that
[21:07:25] <Tom_L> skunkworks do you know where to find docs on 'run from line' ?
[21:07:35] <flyback> you know
[21:07:41] <flyback> I bought a wifi plug for $5
[21:07:46] <flyback> I was going to recode it make it secure
[21:07:52] <flyback> the chip is a rare weird arch
[21:07:57] <_unreal_> ?
[21:08:09] <flyback> ok still willing to give it a go since they have a freertos port and sdk
[21:08:14] <Tom_L> skunkworks, just don't turn the spindle on....
[21:08:17] <flyback> then I found out, no watchdog timer
[21:08:21] <flyback> FUCK THAT NOISE
[21:08:25] * flyback tosses it
[21:08:35] <_unreal_> flyback, https://www.amazon.com
[21:08:39] <pink_vampire> BTW my HF VFD is still on the machine table in a zip-lock bag and no E-stop.
[21:09:15] <flyback> yeah whoever invented those will get his own universe to play with
[21:09:18] <flyback> after he dies
[21:09:24] <pink_vampire> https://www.youtube.com
[21:09:31] <skunkworks> Tom_L: what problem are you having?
[21:09:33] <flyback> for all the millions of lives he saved
[21:09:47] <Tom_L> skunkworks, none i just wondered if there were docs on it
[21:09:56] <Tom_L> do you know when it was introduced to lcnc?
[21:10:16] <Tom_L> about the same time as the trajectory planner?
[21:10:46] <skunkworks> Tom_L: it is plugged in in such a way that it should unplug if the spindle was turned on.
[21:11:03] <Tom_L> ahh good idea
[21:11:04] <skunkworks> 'should'
[21:11:08] <Tom_L> heh yea
[21:11:40] <skunkworks> idk about rfl... i use it often.
[21:12:02] <Tom_L> i tried it the other day... damn handy thing
[21:12:12] <pink_vampire> _unreal_: which machine do you have??
[21:12:20] <_unreal_> I have not built it
[21:12:32] <_unreal_> i'm still gathering parts for the big machine, just got my motors
[21:12:37] <Tom_L> pink_vampire, homebrew gantry
[21:12:50] <_unreal_> I have a small machine that I'm going to get going finally been years litteraly
[21:13:07] <_unreal_> I'm having my hardware pro. milled for me
[21:13:08] <pink_vampire> mill?, engraver?
[21:13:19] <pink_vampire> servo? stepper?
[21:13:38] <_unreal_> the home one would be light duty mill/engraver... the big one I'm working on will be heavy duty mill
[21:14:21] <_unreal_> may be the weekend but I need to feed my child back later
[21:14:52] <Tom_L> skunkworks, did it come out square?
[21:16:37] <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.
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[21:19:35] <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.
[21:20:23] <pink_vampire> _unreal_: ^
[21:25:30] <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.
[21:26:20] <pink_vampire> hope for you not to learn it the hard way.
[21:26:58] <XXCoder> even when engraving, wear googles
[21:27:02] <XXCoder> *goggles
[21:28:06] <pink_vampire> but carbide can make your eyes look much more interesting + you will have a story,
[21:28:16] <XXCoder> lol
[21:29:35] <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
[21:29:49] <XXCoder> what just 3 million pics?
[21:30:15] <pink_vampire> 32M
[21:30:30] <XXCoder> ah miscounted digits lol
[21:30:40] <XXCoder> mine dont total to 20
[21:30:50] <pink_vampire> I mean a-lot
[21:30:58] <pink_vampire> %^**9209312312
[21:31:08] <XXCoder> mines just 20! ;)
[21:31:12] * flyback bites pink_vampire
[21:31:15] <flyback> BMCC
[21:31:37] <pink_vampire> like gazillion
[21:32:25] <flyback> for _unreal_
[21:32:27] <flyback> https://www.youtube.com
[21:32:29] <flyback> sfw
[21:33:12] <pink_vampire> flyback: where is the E-stop?
[21:34:02] <pink_vampire> i ant to see it stop on the spot
[21:34:16] <flyback> 1920s
[21:34:23] <XXCoder> huge mass also
[21:34:34] <flyback> that's the housing spinning
[21:34:36] <flyback> not the shaft
[21:34:42] <flyback> it was a starting method
[21:34:49] <flyback> notice it puts backspin on the shaft
[21:35:34] <XXCoder> interesting
[21:36:46] <flyback> don't need that anymore thx to rugged winding and starting caps
[21:39:08] <roycroft> has someone talked some sense into _unreal_ yet?
[21:39:38] <XXCoder> some people gonna learn hard way. even when its just engraver
[21:40:08] <pink_vampire> https://www.youtube.com he got excited by 60K and then...
[21:41:03] <roycroft> something else that begs mention is that "oh shit" moments can happen no matter how safe one is
[21:41:40] <flyback> yeha some people are
[21:41:43] <flyback> STUPID CANUCKS
[21:41:45] <flyback> STUPID CANUCKS
[21:41:55] <flyback> i LOST A friend because I tore him a new one
[21:42:02] <flyback> for buying a cutting laser first, mask 2nd
[21:42:16] <roycroft> ok
[21:42:22] <roycroft> this is the best thing that happened today:
[21:42:24] <roycroft> https://www.youtube.com
[21:43:01] <pink_vampire> flyback: sound like A laser cutter,
[21:44:14] <flyback> this is better https://www.youtube.com
[21:44:27] * flyback recites poetry from highschool 25 yrs ago
[21:44:28] <flyback> BEAT
[21:44:29] <flyback> BEAT
[21:44:30] <flyback> DRUMS
[21:44:31] <flyback> BEAT
[21:44:32] <flyback> BEAT
[21:44:33] <flyback> DRUMS
[21:45:33] <roycroft> no, sorry
[21:45:47] <roycroft> the welsh guard paying tribute to aretha is by far the best thing that happened in the world today
[21:46:43] <skunkworks> Tom_L: pretty good.. <.001" both directions
[21:46:48] <roycroft> and al sharpton politicising her death one of the worst things that happened today
[21:47:18] <roycroft> i'll go watch the welsh guard again :)
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[21:50:25] <pink_vampire> https://www.youtube.com ...
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[23:35:18] <_unreal_> ok so debian is upgrading on my tinker board
[23:56:23] <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?
[23:57:17] <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
[23:57:49] <XXCoder> pink_vampire: man I never liked titan channel. always moving always brief shots
[23:57:51] <XXCoder> I hate those