#linuxcnc | Logs for 2016-10-14

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[02:17:03] <Deejay> moin
[03:02:57] <miss0r2> I've been looking into making my own EDM. On the shelf behind me I have a tone generator 1hz-10khz. I have a vario trafo 0-300 volt. What I am thinking: I will rectify the output from the vario trafo, and add two large caps. Then i will take the DC power from this supply and switch it with a large mosfet, driven by the tone generator. Does this seem way off? or am I on the right track
[03:04:15] <miss0r2> I will add an arduino to monitor the current and drive a stepper acordingly
[03:08:01] <miss0r2> pink_vampire: If I remember correctly, you are messing around with EDM. When you have a chance, I would like to pick your brain with a few questions
[03:26:51] <archivist> often plain DC to the spark
[03:27:50] <archivist> and a micro, some designs have been published in the model engineering press
[03:32:57] <miss0r2> i've seen the plain dc versions. they seem a bit crude to me :)
[03:33:23] <miss0r2> having the z-axis distance being the only thing controlling the spark. this would mean alot of wasted energy
[03:33:49] <miss0r2> as fare as I can tell anyway
[05:00:53] <pink_vampire> miss0r: hi
[05:28:04] <jthornton> morning
[05:58:18] <XXCoder> home, I am
[05:59:07] <jthornton> got the new extruder yesterday, much nicer than the old one
[05:59:31] <XXCoder> nice!
[05:59:46] <XXCoder> I thought I finally got inductor sensor but nope :P
[06:00:06] <jthornton> printed a mount for it then put it on http://www.thingiverse.com/thing:1826016
[06:00:15] <jthornton> hmmm some thunder
[06:01:02] <jthornton> my 10mm rods and bearings should arrive today for the Y axis
[06:01:09] <XXCoder> windy all over here
[06:01:26] <XXCoder> storm for maybe a week, and often washingtonian foreverrain
[06:01:37] <XXCoder> it rained constantly for over 12 hours today
[06:02:35] <jthornton> you on the wet side of the mountains?
[06:02:52] <XXCoder> yep
[06:21:18] <XXCoder> man
[06:21:25] <XXCoder> harbor freight taps suck
[06:26:05] <archivist> use HSS ground taps not grotty carbon steel taps
[06:26:44] <XXCoder> I dont need taps much but even 4 use its still so shitty lol
[06:27:04] <XXCoder> I planned to go work shop use their taps but usa company usa products - no meteric.
[06:27:23] <archivist> dont forget to use tapping lube
[06:29:01] <XXCoder> thats what I need too. probably just abuse wd40
[06:35:11] <XXCoder> archivist: yup wd40 works lol
[06:35:41] <archivist> so blame the user not tap supplier!
[06:35:50] <XXCoder> nah its shitty
[06:35:52] <XXCoder> it keeps falling apart
[06:36:00] <XXCoder> I have to put iot together each few revs
[06:36:48] <archivist> hand taps do have to be cleared
[06:37:15] <XXCoder> yeah I go forward a little and back
[06:37:21] <XXCoder> then clear out each few rotations
[06:37:36] <archivist> use machine taps to enable one pass
[06:38:32] <XXCoder> indeed'
[06:38:47] <XXCoder> no idea where by those though
[06:39:11] <archivist> any sensible tool supplier
[06:39:21] <XXCoder> like lowes?
[06:41:11] <archivist> how would I know usa suppliers
[06:42:05] <XXCoder> lol always thought ya was in usa too
[06:52:11] <XXCoder> one part completed tap, and billion to go
[06:52:24] <XXCoder> aka 3. which is probably 2 more than this tap can handle
[06:52:29] <jthornton> what are you making?
[06:55:46] <XXCoder> oh just tapping legs for my 3d legs so can screw in feet
[07:07:13] <Jymmm> XXCoder: 3D printer yourself threaded leg holes ;)
[07:07:20] <Jymmm> -er
[07:07:26] <XXCoder> lol
[07:08:34] <Jymmm> XXCoder: Go on, I dare ya... I double dawg dare ya!
[07:08:45] <XXCoder> no thanks :P
[07:12:14] <XXCoder> 3 down one to go
[07:12:23] <XXCoder> lets see if this tap surivies
[07:12:29] <Jymmm> XXCoder: This is a 12 pack, but I love this stuff and cinnamon scented too https://www.amazon.com/LPS-01216-Tapmatic-Aquacut-Turquoise/dp/B005ENS8FM
[07:12:55] <XXCoder> everything in universe smells same to me ;)
[07:14:09] <Jymmm> $2.66/ea is a good price too
[07:14:22] <Jymmm> typically $8/bottle
[07:14:58] <Jymmm> water based
[07:15:35] <XXCoder> not bad
[07:15:46] <XXCoder> dont need to tap often though
[07:16:00] <Jymmm> use for cutting fluid as well
[07:16:31] <XXCoder> hmm ok
[07:16:36] <Jymmm> or drilling
[07:16:41] <XXCoder> im STILL waiting for those damned tb660s
[07:16:49] <XXCoder> probably arrive week after I die
[07:16:58] <Jymmm> tomorrow?
[07:17:09] <XXCoder> you hope so
[07:17:22] <XXCoder> nah ill die a week after you die
[07:17:29] <Jymmm> Not really, it was scheduled for yesterday, but wel, you know...
[07:26:17] <XXCoder> finally
[07:26:18] <Jymmm> SpeedEvil: Heh, found some SS tubing... Sorta http://www.homedepot.com/p/1-2-in-x-25-ft-CSST-Corrugated-Stainless-Steel-Tubing-11-00525/203073939
[07:26:25] <XXCoder> the damned parts are tapped
[07:26:32] <XXCoder> fuck hf tapset lol
[07:35:45] <jthornton> HF cutting tools are for butter only not really for metal lol
[07:37:00] <XXCoder> heh its almost butter
[07:37:09] <XXCoder> soft alum extrusion
[07:37:11] <XXCoder> 2020
[07:37:47] <XXCoder> https://www.thingiverse.com/thing:1776895
[07:37:52] <jthornton> on aluminum use a soap bar to lube the tap
[07:37:52] <XXCoder> Im thinking on print that lol
[07:38:03] <XXCoder> I used wd40
[07:38:15] <XXCoder> works pretty surpising good
[07:41:35] <XXCoder> holy flipping poop aliexpress seller finally shipped my order :P
[07:42:20] <Jymmm> XXCoder: Aluminum is when you want the BEST taps
[07:42:59] <Jymmm> XXCoder: If a seller doesn't ship within x days, aliexpress cancels the item automatically
[07:43:10] <XXCoder> Jymmm: and they shipped it.. a day before
[07:43:25] <XXCoder> the longest wait ever got from aliexpress seller
[07:43:47] <Jymmm> XXCoder: and you STILL have to wait 30+ days, so quit yer whining ya whiny whiner!
[07:44:13] <XXCoder> 59 days
[07:44:22] <XXCoder> or 55 days
[07:44:42] <Jymmm> ok, month(s), hows that =)
[07:44:54] <XXCoder> heh
[07:45:05] <XXCoder> most sellers tend to be prompt
[08:15:25] <XXCoder> huh
[08:15:33] <XXCoder> one post says bronze is self lubucating?
[08:15:56] <gregcnc> what are you doing with it?
[08:16:08] <XXCoder> not using bronze for anything
[08:16:13] <XXCoder> but how do that work anyway
[08:16:21] <XXCoder> do it grab oil or what
[08:16:54] <gregcnc> well there is sintered bronze, aka oilite bearings
[08:19:52] <skunkworks> it is nice having a cnc.. http://electronicsam.com/images/matsuura/20161007_202449.jpg
[08:20:26] <XXCoder> looks nice
[08:20:34] <gregcnc> prepping sleds?
[08:21:55] <skunkworks> no - more of a science experiment..
[08:24:10] <skunkworks> that engine is probably from the 70's.. Rotax - using it as a base for a stirling engine experiement..
[08:24:38] <XXCoder> whats your plan for stirling
[08:24:47] <XXCoder> I still want to build one. may be hard with cnc router...
[08:25:18] <skunkworks> Just trying different things.. I like to tinker.
[08:25:45] <XXCoder> you can do interesting stuff with one
[08:25:55] <XXCoder> like making liquidified air for shit and giggles.
[08:26:11] <gregcnc> Stirling are neat. I like the big ones at the steam shows.
[08:26:27] <skunkworks> one of the oldest engines,,,
[08:26:45] <skunkworks> and theoretically the most efficient.,..'
[08:26:50] <XXCoder> one of reasons it failed was that its not self starting
[08:26:57] <XXCoder> and well cheap oil killed it
[08:27:13] <XXCoder> did you know there was electric cars in 1800s too?
[08:27:19] <XXCoder> oil killed that too
[08:27:41] <gregcnc> Not oil, cost of operation
[08:27:43] <archivist> I think a multi cylinder stirling could self start
[08:27:47] <gregcnc> performance
[08:28:13] <XXCoder> gregcnc: and price of oil. everything else cost so much.
[08:28:16] <archivist> stirling can perform well at high pressures
[08:28:33] <XXCoder> archivist: dunno I never saw any self starting stiring
[08:28:42] <gregcnc> cost of operation include the fuel
[08:28:54] <archivist> sun powered
[08:35:23] <Jymmm> skunkworks: At first, I thought it was a transmission bell housing :)
[08:36:52] <XXCoder> I wonder how easy it is to make one with cnc router.
[08:37:01] <XXCoder> I guess lathe is much better optuon.,
[08:39:50] <gregcnc> https://www.youtube.com/watch?v=9M-8qtIVHFg
[08:40:00] <archivist> see foreground for very simple to make http://www.collection.archivist.info/archive/DJCPD/PD/2009/2009_05_08_Harrogate_Model_Engineer/IMG_0230.JPG
[08:40:15] <XXCoder> gregcnc: that is nice.
[08:43:05] <archivist> the little ones use a diaphragm so you dont need to make accurate pistons and bores
[08:44:17] <Nick001> Did classic ladder change when lnc went to wheezy?
[08:44:52] <XXCoder> arch suppose so but ehh I want air liquidifer lol that requires pretty damn good stirling
[08:45:47] <AlSmt> I dont think there is any change to classic ladder
[08:46:19] <Jymmm> I see lots of models of sterlings, but I never see any put to practical use
[08:47:04] <gregcnc> yes, put coffee cup stirlings to work
[08:47:43] <XXCoder> theres people that use em to make power
[08:47:55] <XXCoder> using old tv fersel len and focus light to end
[08:48:18] <XXCoder> and some use it to make stirling refergation unit
[08:48:34] <XXCoder> it can be bought anywhere and still work since its powered by kenosese
[08:49:09] <Nick001> I'm trying to use JT's turret indexer and I'm getting nowhere-keeps erroring on 2 lines and I cant seem to fix them.
[08:49:16] <Jymmm> The closest thing I've ever seen is this fan, but it's a T-Cooler, not sterling... http://www.cabelas.com/product/Caframo-Ecofan-reg-UltrAir-Wood-Stove-Fan/2252258.uts
[08:49:51] <AlSmt> Nick001, what are the two lines
[08:50:03] <Nick001> ##net tool-cng-req iocontrol.0.tool-change => classicladder.0.in-01
[08:50:04] <Nick001> ##net tool-cn-done iocontrol.0.tool-changed <= classicladder.0.out-01
[08:51:05] <XXCoder> https://www.youtube.com/watch?v=rzhzeA4VRSc
[08:51:37] <XXCoder> I wonder if that is better way than huge bird killer mirror salt melter array
[08:52:22] <AlSmt> Nick001, halshow says you have the pins?
[08:52:54] <XXCoder> https://www.youtube.com/watch?v=4AsnE9kwyDw
[08:53:00] <XXCoder> better than that advert pap
[08:53:27] <XXCoder> noy that much better
[08:54:21] <Nick001> I have the pins and can unlink them and the 2 solenoids involved work properly.
[08:54:36] <malcom2073_> XXCoder: I want to build a sterling generator somday
[08:54:37] <malcom2073_> someday*
[08:54:48] <malcom2073_> Use a parabolic mirror to heat it
[08:55:20] <AlSmt> does it error loading the config?
[08:55:34] <XXCoder> FINALLLLY https://www.youtube.com/watch?v=dFGvRSGn7Y8
[08:55:38] <Jymmm> malcom2073_: Your sony camera... does it have IR leds? Can you perv your across the street neighbor's license plate at night?
[08:55:39] <XXCoder> good video
[08:56:02] <malcom2073_> XXCoder: Yes! Like that, but bigger!
[08:56:03] <malcom2073_> Jymmm: Huh?
[08:56:14] <Nick001> axis wont start up if that's what you mean
[08:56:24] <XXCoder> malcom2073_: its spinning very fast, but dont look like any load. so dunno how good it is
[08:56:40] <AlSmt> yes or starting from a terminal
[08:56:47] <malcom2073_> XXCoder: That one? likely not much. But that's a tiny dish
[08:57:00] <Jymmm> malcom2073_security camera
[08:57:03] <XXCoder> hey if its enough to run single AC
[08:57:04] <XXCoder> im good
[08:57:11] <malcom2073_> Jymmm: I don't have security cameras
[08:57:15] <XXCoder> just have 2 or 3 dishes running few acs during summer
[08:57:22] <Jymmm> malcom2073_: oh, my bad
[08:57:30] <gregcnc> 1.25W for that one
[08:57:39] <Jymmm> 1984... https://www.youtube.com/watch?v=vGdT9w4ubLc
[08:57:45] <malcom2073_> 100watts per square ft is the sunload on the earth iirc under ideal conditions. You can extract about 30% of that under best conditions as heat
[08:57:53] <Nick001> never started axis from terminal
[08:58:23] <gregcnc> ~300W of solar gives 1.25W
[08:58:26] <XXCoder> malcom2073_: I bet you can get boost if you cool the cool end too. make it power a shitty chinese water pump from pond to cool thta end
[08:58:34] <AlSmt> Nick001, start a terminal and type linuxcnc
[08:58:39] <XXCoder> very amps at best but BIG power increase
[08:58:41] <malcom2073_> XXCoder: Right you need to cool the cold end to get even remotely close to that 30%
[08:58:46] <XXCoder> *very few amp
[08:59:07] <XXCoder> sriring theorical effeciancy is far above 30%.
[08:59:16] <Nick001> I'll have to go to the shop - how long will you be here
[08:59:18] <XXCoder> theres been machines that go over 50%
[08:59:18] <malcom2073_> XXCoder: no, sun load to heat efficiency
[08:59:24] <AlSmt> Nick001, what is the error
[08:59:25] <malcom2073_> 100% sterling will get you 30% sun efficiency
[08:59:32] <XXCoder> ah
[09:00:15] <XXCoder> is there some guy speaking in last video I linked? did he or she or it menion how much power its making?
[09:00:47] <gregcnc> text in description says 1.25W and .63m dish
[09:01:04] <XXCoder> oh interesting
[09:01:12] <AlSmt> Nick001, you have a chnc?
[09:01:40] <XXCoder> 10v 0,125a not too sure what that means. 0.125a?
[09:02:02] <gregcnc> yes
[09:02:08] <Nick001> It saying pin is already linked somewhere. It's an CHNC with an AB control
[09:02:11] <XXCoder> not much power
[09:02:43] <AlSmt> Nick001, I just bought one with a fanuc 10T
[09:02:48] <malcom2073_> Most small sterligns aren't super high efficiency, and usually use atmospheric pressure air
[09:03:03] <malcom2073_> You can boost efficiency by using helium, and by pressurising it
[09:03:24] <Nick001> probably has the same turret
[09:03:44] <AlSmt> Nick001, than the pin must be linked somewhere else
[09:04:49] <Nick001> that's what I don't seem to be able to find
[09:04:56] <AlSmt> Nick001, does it have a siemens spindle drive?
[09:05:58] <AlSmt> Nick001, word search the configs for that pin
[09:06:11] <Nick001> no -GE HiAK stuff. X and Z have been changed to AMD
[09:06:43] <XXCoder> malcom2073_: thanks
[09:07:07] <Nick001> Will do the search as soon as I get there.
[09:07:38] <AlSmt> Nick001, i'm looking for some schematics for mine just got it home Tues.
[09:08:59] <AlSmt> Nick001, pretty certain it is a error in the configs
[09:09:09] <Nick001> probably very different from the Allen Bradly control -
[09:09:18] <AlSmt> ya
[09:10:10] <AlSmt> I live under 50 miles from where it was made
[09:12:09] <Nick001> I'm about 75 miles SE of where it was made- used to be about 50 miles N of there - got tired of supporting NYC fools
[09:12:32] <AlSmt> PA?
[09:12:42] <Nick001> now - yes
[09:13:28] <AlSmt> I'm north east
[09:13:51] <Nick001> NE of what -)
[09:14:02] <AlSmt> Elmira
[09:14:31] <Nick001> Syracuse way?
[09:14:38] <AlSmt> yep
[09:15:28] <Nick001> bet your school taxes are nuts
[09:15:49] <AlSmt> the highest in the country
[09:16:32] <AlSmt> small town and no tax base
[09:17:26] <Nick001> that's because the larger Co's are gone one way or another.
[09:17:55] <AlSmt> All gone
[09:18:38] <Nick001> And Hag had something to do with continuing that when she was senator
[09:19:23] <AlSmt> they have been leaving since the 70's
[09:21:02] <AlSmt> Nick001, good luck hope to here more on chnc ,plenty of help here
[09:21:22] <Nick001> didn't really get going til after '80 when Carter's recession really took hold. 21% mortgage rates didn't help thing
[09:22:36] <Nick001> we'll see about the help - might be better off trying and older version to see if it works there.
[09:22:44] <AlSmt> We keep purchasing imported crap too
[09:23:11] <AlSmt> I don't think it is a version thing
[09:23:41] <Nick001> that's because most of the US producers are out of business thanks to the government
[09:24:37] <AlSmt> if it loads with those lines commented out
[09:24:50] <Nick001> had to make a couple of syntax changes because of wheezy.
[09:25:01] <miss0r2> pink_vampire: you around?
[09:25:30] <pink_vampire> yes
[09:25:33] <AlSmt> does it load with those line commented out?
[09:25:47] <pink_vampire> one sec, i'm set the printer, and then i'm here
[09:26:06] <miss0r2> pink_vampire: just say when :)
[09:26:22] <pink_vampire> ok..
[09:26:33] <Nick001> commented out allows ne to start axis- when I call a tool,the screen shows it but the turret doesn't work
[09:27:34] <AlSmt> Nick001, then it is a config error find the error and get it to load
[09:28:25] <Nick001> been doing that all week- that's why I'm here
[09:29:08] <AlSmt> Nick001, start using the terminal to load the config better message feed back
[09:30:31] <Nick001> OK-will try that - Thanks
[09:30:58] <AlSmt> also make sure you have been saving your changes, gotta go
[09:40:49] <pink_vampire> http://ustre.am/1qGHt
[09:40:55] <miss0r2> pink_vampire: i'll just write my question here, you can answer when you return :) I'm looking into EDM. If I remember correctly, you are messing around with such. My plan is very simple. i want to build/buy a portable tap/hardened bolt remover. I am curious as to what machinery you have? home build?
[09:41:17] <pink_vampire> g0704 in 3000mm/min
[09:42:04] <miss0r2> pink_vampire: hehe, it seems your print is not holding its shape :-o
[09:42:56] <pink_vampire> it was a test
[09:42:56] <XXCoder> miss0r2: thats my chair design, it is very very hard to print
[09:43:12] <miss0r2> XXCoder: I can imagine
[09:43:26] <XXCoder> I have yet to succed :( though I got close bunch times
[09:44:15] <miss0r2> I think I would probally cnc a mold for that
[09:45:11] <miss0r2> pink_vampire: but you do have an EDM, right?
[09:45:31] <pink_vampire> XXCoder: I took better picture
[09:46:11] <pink_vampire> miss0r2: I'm working on the same edm that you want to make 1" Z travel
[09:46:16] <pink_vampire> very simple.
[09:46:32] <miss0r2> what is your design? (electrically speaking)
[09:46:58] <pink_vampire> just on/off
[09:47:24] <miss0r2> heh :) that told me nothing :D
[09:47:46] <miss0r2> if you have the time, I would love to run my idea by you?
[09:48:09] <pink_vampire> and motor the drive the electrode until it close the circute then go back untie it brake, so it spark
[09:48:33] <XXCoder> this model if curious lol https://www.thingiverse.com/thing:1765796
[09:48:37] <miss0r2> and have some large caps filled from a good psu?
[09:49:15] <pink_vampire> you can
[09:49:46] <archivist> some measure arc voltage, advance if high, retard if low thus continuous
[09:50:41] <miss0r2> What I am thinking: vario trafo, rectifyer and some large caps for the PSU. then I am planning to build a highspeed mosfet switch, that is controlled by a tone generator I have laying around(ajustable up to 10khz). On top af this I will probally have an arduino run a stepper/servo up and down, ajusted by a current sensor
[09:51:31] <miss0r2> And I though my idea sounded simple... lol
[09:51:36] <miss0r2> now that I see it in writing
[09:52:51] <miss0r2> i'm thinking, I would love to have more sparks - hense the highspeed switching. and then just have the arduino maintain the gap. not opending and closing the gap
[09:53:13] <pink_vampire> miss0r2: you are over thinking about that.
[09:53:36] <miss0r2> pink_vampire: I do that alot, i'm told :)
[09:54:14] <miss0r2> but I have been looking around on the interwebs for a commercial unit. but they all look like generic chinesium to me
[09:54:21] <pink_vampire> for simple stuff just dc power supply and protective resistor is all you need
[09:54:45] <miss0r2> My worrie is that with that solution, removing a simple tap will take ages.
[09:55:32] <miss0r2> pink_vampire: Do you have schematics you've on your solution?
[09:55:46] <archivist> it is minutes
[09:56:00] <miss0r2> archivist: even with such a simple setup?
[09:57:24] <archivist> should be, I have seen a simple one go through hardened steel (stanley blade) in 30 secs or less
[09:57:36] <pink_vampire> miss0r2: I'm using 24V relay
[09:57:41] <miss0r2> My problem as is: I have no idea what sort of voltage/amperage I should aim for.
[09:57:58] <miss0r2> pink_vampire: So what voltage are you sparking with?
[09:58:13] <pink_vampire> and the motor change direction if it close or open
[09:58:16] <pink_vampire> 24V
[09:58:33] <miss0r2> Do you have any videos of this thing working?
[09:58:55] <miss0r2> Because, this sounds like something right up my alley
[09:59:22] <archivist> https://www.youtube.com/watch?v=c742j94FxmE
[10:00:14] <archivist> that has a silly rod size only need take out the core
[10:00:19] <pink_vampire> miss0r2: this is the basic https://www.youtube.com/watch?v=fRPmSgfIJqY
[10:00:46] <pink_vampire> after you make it work that way, you can change the coil to a rail with motor
[10:01:13] <miss0r2> indeed. alright. Here I was thinking I needed 200+ volts and 10 amps
[10:02:09] <miss0r2> you've made me see quite clearly that I have been overthinking it. heh
[10:03:01] <miss0r2> buy one should never look down on overly complicated solutions. for people without a clue, it makes you look smart ;)
[10:03:19] <archivist> http://modelenginenews.org/meng/edm/p1.html
[10:03:53] <miss0r2> archivist: I read on his page. Althou, I couldn't find a schematic on there descriping how his controller works
[10:04:12] <archivist> I think it is the one out that book
[10:04:33] <miss0r2> I think I should go buy that book :)
[10:04:43] <miss0r2> Thank you for your help. I have to run and get dinner started.
[10:05:09] * archivist demands cake
[10:05:12] <miss0r2> (with a 10month old kid, you eat early)
[10:05:27] * miss0r2 sends archivist a cake
[10:05:30] <miss0r2> see you around
[10:13:41] <Jymmm> Eat early?! Veal KIDlet?
[10:14:48] <malcom2073_> yum, tender
[10:15:01] <Jymmm> lol
[10:16:14] <pink_vampire> any idea http://i.imgur.com/X4doK00.png
[10:18:00] <malcom2073_> Your aluminum looks awfully pink
[10:18:16] <malcom2073_> Way too hot, not enough retract, could possibly also be a mis-calibrated extruder
[10:18:30] <witnit> that doesnt look like the chair in the picture :P
[10:18:53] <malcom2073_> Also possibly moving too slow
[10:19:01] <malcom2073_> And not enough airflow if it's PLA
[10:19:23] <Tom_L> a general mess
[10:19:53] <pink_vampire> airflow?
[10:20:01] <malcom2073_> If it's PLA, you need a fan cooling it as you print
[10:20:11] <pink_vampire> http://i.imgur.com/gYbmssr.png
[10:20:32] <malcom2073_> Ah, well that explains why you're printing so slow
[10:20:46] <pink_vampire> slow??
[10:20:51] <pink_vampire> 3000mm/min
[10:21:11] <Jymmm> I see the problem, you need to get rid of everything pink!
[10:21:13] <malcom2073_> Then check the above things I mentioned
[10:21:18] <malcom2073_> It'll be one or all of htem
[10:21:23] <malcom2073_> Or something else entirely :-D
[10:21:39] <Jymmm> malcom2073_: like too much pink
[10:22:27] <Jymmm> aren't you suppose ot have the cooling fan BELOW the extruder?
[10:22:47] <malcom2073_> Jymmm: Some extruders need a cooling fan *on* the extruder
[10:22:49] <malcom2073_> as well as eblow
[10:22:50] <malcom2073_> below*
[10:23:09] <Jymmm> Uh, that would remove heat for the heater?!
[10:23:13] <Jymmm> from*
[10:23:21] <malcom2073_> No, removes heat above the heater
[10:23:32] <malcom2073_> Keeps the hot zone as small as possible
[10:24:00] <Jymmm> is that to compensate for shitty ass heating elements, that 90% have/use?
[10:24:04] <malcom2073_> No
[10:24:19] <malcom2073_> It's to compensate for the fact that they're using the filament to provide the pushing force, rather than a screw
[10:24:24] <Jymmm> Then why the hell would you REMOVE heat from a heating element?
[10:24:28] <malcom2073_> Not from
[10:24:29] <malcom2073_> above
[10:24:31] <Tom_L> just because
[10:24:46] <malcom2073_> And like I said, to keep the hot zone as small as possible
[10:24:50] <malcom2073_> Because physics
[10:24:58] <gregcnc> oh the filament can't melt before it reaches the heater
[10:25:02] * Jymmm smacks Tom_L with his momma's rolling pin
[10:25:06] <malcom2073_> Yeah
[10:25:10] <Tom_L> yo mama
[10:25:26] <malcom2073_> If it starts to get hot before the heater, it'll stick in the tube as it expands, before actually melting
[10:25:39] <Tom_L> it needs to be a solid until it hits the area where it is squeezed out
[10:25:49] <Tom_L> or it will turn to mush and plug up
[10:26:34] <Jymmm> Man, not even glue guns are as mucked up as that
[10:26:59] <Tom_L> they don't need to be because the material is a larger diameter
[10:27:03] <malcom2073_> It's only some hotends that need it
[10:27:12] <Jymmm> Y'all can keep your sub <$1000 printers
[10:27:17] <malcom2073_> If you have a PTFE liner inside typically you won't need it, but that means you can't get above 250C
[10:27:25] <malcom2073_> It's a compromise
[10:27:31] <Tom_L> that's it... throw money at the project!
[10:27:42] <malcom2073_> Tom_L: If he throws itat me, I'm ok with it
[10:27:42] <malcom2073_> :P
[10:28:06] <malcom2073_> Jymmm: Glue guns have a liner, and can't get hot enough to melt plastic :)
[10:28:07] <Jymmm> malcom2073_: At least 250C is a good safety margin for PTFE
[10:28:41] <Jymmm> malcom2073_: Not any of the ones that I have taken apart, they are way to cheap to afford PTFE =)
[10:28:53] <malcom2073_> Jymmm: It's not an expense, it's a design type
[10:28:59] <malcom2073_> Neither is more expensive than the other becauseof the liner
[10:29:18] <malcom2073_> Oh you mean glue guns? What do you think the plastic before the heating element is?
[10:29:57] <Jymmm> malcom2073_: silicone rubber
[10:30:02] <Jymmm> at least mine are
[10:30:12] <malcom2073_> Same effect
[10:30:14] <Tom_L> you got a cheap model
[10:30:30] * gregcnc sends Jymmm an snickers bar
[10:30:41] * Tom_L just snickers at Jymmm
[10:30:47] <malcom2073_> gregcnc: I don't know that there is a snickers bar big enough for him
[10:31:22] * Jymmm returns in kid a baby rub bar, or at least I think it's a baby ruth bar... https://www.youtube.com/watch?v=TPxiXGr9nFM
[10:31:26] <Jymmm> kind*
[10:32:28] <MacGalempsy> Good Morning
[10:34:07] <Tom_L> foggy one at that
[10:34:39] <malcom2073_> Sunny and chilly here
[10:34:45] <malcom2073_> I think summer may be officially over
[10:34:59] <MacGalempsy> agreed. it is cold here and rainy
[10:36:40] <MacGalempsy> they are replacing the sewer system in town, and this morning they were all out standing in the rain fixing the backhoe
[10:36:50] <IchGucksLive> hi
[10:38:00] <MacGalempsy> hi
[10:38:21] <malcom2073_> Heh
[10:38:32] <malcom2073_> Union job, they were all standing out, with one guy working on it?
[10:39:55] <MacGalempsy> No it was contract. a couple of low ball bidding kids and their backhoe
[10:40:32] <MacGalempsy> lucjkily the place they were was graded, so the fat ass mechanic didnt have to walk up the hill
[10:40:38] <MacGalempsy> he wouldnt have made it
[10:42:17] <Jymmm> MacGalempsy: You could have crawled up the hill ;)
[10:42:39] <MacGalempsy> heh. wieghed in at 90.5kg this AM
[10:42:49] <MacGalempsy> I should have got a picture of him
[10:57:26] <CaptHindsight> http://www.ebay.com/itm/Glass-Scale-Linear-Encoder-6-8-or-10-for-DRO-Digital-Readout-NEW-/260858985144 anyone ever try these? 5um res encoders for $200-300 based on length
[10:59:13] <MacGalempsy> they look legit. um is pretty small
[10:59:43] <CaptHindsight> 25.4 of them to the 0.001"
[11:00:40] <sync> CaptHindsight: there are ones with even more resolution for about the same prices
[11:00:43] <sync> they are not bad
[11:00:58] <CaptHindsight> sync: on fleabay?
[11:02:04] <sync> not sure if they sell them on ebay, but I know sino certainly makes them
[11:02:26] <CaptHindsight> ^^ 2-3 hour drive from me
[11:04:30] <CaptHindsight> https://www.aliexpress.com/store/product/Glass-Scale-Linear-Scale-5micron-linear-encoder-320-370-420-470mm-optical-linear-sensor-lathe-free/817985_32378984513.html
[11:04:59] <CaptHindsight> ~$100 with the 1um option
[11:06:03] <CaptHindsight> sync: I was just looking at their inkjet valves the other day
[11:07:06] <sync> not sure if they are the same company
[11:07:47] <CaptHindsight> https://www.sinotech.com/products/motors/optical-encoders-overview/
[11:10:46] <CaptHindsight> http://www.ebay.com/itm/Easson-150mm-6-Optical-Linear-Encoder-DRO-Digital-Readout-System-Mill-Lathe-/121634198378
[11:11:16] <sync> for some reason it seems like the small scales have export restrictions on them
[11:12:40] <CaptHindsight> WMD's
[11:14:17] <AlSmt> Nick001, you there?
[11:17:56] <CaptHindsight> sync: Sino http://www.ebay.com/itm/SINO-KA300-linear-scale-5micron-linear-encoder-W-protection-cover-free-shipping-/162211466214
[11:21:38] <sync> yeah, although they are only the 5µm ones
[11:22:03] <IchGucksLive> 20USD for 1µm
[11:22:19] <IchGucksLive> Gn8 its late in germany and weekend ahead
[11:22:23] <IchGucksLive> by
[11:59:33] <pink_vampire> http://i.imgur.com/NTLIwMM.png
[12:00:02] <pink_vampire> same settings, but with larger fan
[12:14:36] <malcom2073_> Starting to look better
[12:14:51] <malcom2073_> Now fix the other 5 things :-P
[12:48:34] <MacGalempsy> pink_vampire: what thingiverse is that/
[12:48:36] <MacGalempsy> ?
[12:48:54] <MacGalempsy> are you using linuxcnc?
[12:49:08] <pink_vampire> https://www.thingiverse.com/thing:1765796
[12:49:23] <pink_vampire> I'm using mach3
[12:49:29] <pink_vampire> ans cnc machine
[12:49:34] <pink_vampire> and*
[12:49:42] <pink_vampire> g0704 mill
[12:52:09] <MacGalempsy> How are you estimating the feedrate for the filament?\
[12:53:14] <MacGalempsy> my wife broke this vase, so now I am having toprint a replacement part. We'll see how the first run goes
[12:53:46] <pink_vampire> I've printed a cube 1x1x1cm and control the amount of the filament until i got it to be 1x1x1 cm
[12:54:26] <pink_vampire> print replacement part for a vase???
[12:54:39] <MacGalempsy> so when I calibrated this 3d printer, i told it to feed 100mm of filament, then adusted the steps until the feed was exactly 100mm
[12:55:23] <MacGalempsy> that number was originally estimated from the gear ratio, but brute force will work too
[12:56:54] <MacGalempsy> http://picpaste.com/vase-base-dWGqnVFc.JPG
[12:58:49] <CaptHindsight> http://www.ebay.com/itm/Quantus-linear-scales-for-digital-readout-DRO-0-50-100-150-200-500mm/172354747842 1um 50-500mm $74
[13:00:58] <MacGalempsy_> those would be great for a 3d printer
[13:03:48] <MacGalempsy_> CaptHindsight: do you run your SLA printers from lcnc?
[13:03:55] <CaptHindsight> nah, that would be overbuilding :)
[13:04:38] <MacGalempsy_> :) can marlin hand that?
[13:04:43] <MacGalempsy_> hand=handle
[13:04:47] <CaptHindsight> SLA (laser and galvos) yes
[13:05:45] <CaptHindsight> heh, marlin doesn't even handle letting you know if you have violated timing (took too long for a thread)
[13:06:43] <MacGalempsy_> what is the common firmware for UV projector?
[13:07:57] <CaptHindsight> you can use HAL
[13:10:03] <CaptHindsight> but there is no gui yet, I have to work on that
[13:12:58] <sync> gotta find someone that sells the .5µm ones now :P
[13:13:20] <pink_vampire> the third one just snap. the legs are to fragile
[13:14:50] <MacGalempsy_> technicallly the one in the picture is only 5um resolution
[13:15:00] <MacGalempsy_> pretty sloppy tolerances if you ask me
[13:15:23] <nubcake> hi everyone
[13:15:32] <sync> well, they also sell the 1µm one
[13:17:38] <MacGalempsy_> hi nubcake
[13:18:12] <MacGalempsy_> everyone needs nanometer resolution (10^-9)
[13:18:25] <MacGalempsy_> EVERYONE
[13:18:33] <nubcake> yup totally <3
[13:19:06] <nubcake> but i'll never get that with my 3040T :D
[13:19:19] <nubcake> neither with the Proxxon MF70
[13:19:20] <sync> MacGalempsy_: the reason is to have better velocity resolution
[13:19:33] <sync> and to be able to split a µm
[13:19:53] <MacGalempsy_> nubcake with that attitude, it will never happen
[13:20:07] <nubcake> MacGalempsy_: i'm just kidding
[13:20:09] <MacGalempsy_> its like putting triple-gold daytons on a 84 cutlass
[13:20:18] <MacGalempsy_> a man can aspire
[13:20:18] <pink_vampire> http://i.imgur.com/HcAB8UU.png
[13:20:18] <nubcake> first of all i got to get it running properly
[13:20:27] <pink_vampire> any idea..
[13:20:37] <MacGalempsy_> 3 looks like the fat mechanic sat in it
[13:20:41] <nubcake> lol yup
[13:21:10] <MacGalempsy_> pink_vampire: https://cnc2printer3d.wordpress.com/software/
[13:22:32] <CaptHindsight> https://www.amazon.com/Renishaw-RGB25Y00R12-Readhead-Encoder-Resolution/dp/B01E66PBHA 0.1um Resolution w/Cable
[13:22:39] <CaptHindsight> sync: ^^
[13:22:54] <nubcake> pink_vampire: idk, did you check the extrusion vs. movement speed ?
[13:23:00] <MacGalempsy_> from what I have put together from comments and reading, to get fdm to run right with mach or lcnc is that you need to improve sync on the filament feed
[13:23:02] <nubcake> just wild guessing
[13:23:19] <MacGalempsy_> malcom2073_: how did you tackle syncing the extruder?
[13:23:53] <pink_vampire> I'm trying to see
[13:23:55] <sync> CaptHindsight: that is only the interpolator
[13:24:17] <CaptHindsight> they use the same scales
[13:24:36] <sync> yes, but the chinese scales have the interpolator integrated
[13:25:15] <CaptHindsight> http://cnditron.gmc.globalmarket.com/products/details/resolution-0-1um-linear-glass-scale-2976410.html
[13:26:05] <CaptHindsight> I never compared them side by side, claimed 0.1 Chinese microns to actual microns
[13:27:59] <sync> they are suprisingly good
[13:28:53] <CaptHindsight> Renishaw is 4x the price but they are accurate
[13:30:20] <MacGalempsy_> well, the overhang looks to be coming out ok, so far
[13:34:07] <malcom2073_> MacGalempsy_: I stopped using linuxcnc
[13:34:29] <malcom2073_> Went to machinekit and velocity extrusion
[13:38:07] <MacGalempsy> i forget why you left the reprap firmwares
[13:44:15] <malcom2073_> Because my printer uses ballscrews which require proper motion planning
[13:44:27] <malcom2073_> not enough flex in my frame for reprap firmware to work
[13:49:31] <CaptHindsight> whats marlin call that again? jerk?
[13:50:08] <CaptHindsight> not calling you a jerk
[13:50:47] <malcom2073_> Hehe
[13:50:48] <malcom2073_> Yeah, jerk
[13:51:01] <malcom2073_> That's what they *call* it
[13:52:33] <CaptHindsight> The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
[13:53:02] <malcom2073_> Yep
[13:53:17] <CaptHindsight> who wrote that helpful comment?
[13:53:54] <malcom2073_> Some jerk
[13:53:57] <CaptHindsight> it's a range or limit
[13:56:40] <CaptHindsight> a good example of an i.e. that doesn't really help
[13:56:52] <malcom2073_> heh
[14:09:21] <pink_vampire> CaptHindsight: Ditron ?
[14:52:26] <nubcake> http://abload.de/img/20161014_211603pkj3a.jpg printed a din-rail mount for the 4-8 channel relais for arduino/raspberry use looks crappy, yet pretty solid
[14:53:26] <nubcake> resolution is .2mm used 1.75mm abs filament from china
[14:57:54] <FloppyDisk525> If it works... eh, should be fine.
[14:58:31] <nubcake> surface looks crappy, the inside is solid as **** ^^
[15:13:45] <JT-Shop> nubcake: what kind of printer?
[15:14:36] <Tom_L> i made a couple of those similar
[15:17:06] <nubcake> JT-Shop: Geeetech Prusa i3 Pro B
[15:17:24] <nubcake> Tom_L, gonna try those tomorrow, i hope they fit
[15:18:13] <Tom_L> was looking for my sw model..
[15:20:19] <nubcake> sw?
[15:21:27] <JT-Shop> SolidWorks
[15:21:52] <nubcake> oh :D
[15:21:55] <nubcake> i dont have that :(
[15:21:56] <Tom_L> hmm, no tellin what pc it's on
[15:22:04] <nubcake> using tinkercad and some free solutions
[15:22:21] <nubcake> pain in the ass sometimes..
[15:22:22] <Jymmm> Got the Monkey Wards AC apart and pulled the coils. I tell ya that ting must have hissed for 20 minutes when I started cutting the lines =)
[15:22:28] <Jymmm> thing*
[15:22:43] * Tom_L calls the EPA on Jymmm
[15:23:20] <Jymmm> Tom_L: Uh, it hissed into a fully sealed recovery chamber unit =)
[15:25:06] <Tom_L> guess that one is lost forever... can't find it
[15:26:02] <Nick-Shop> <JT-Shop> did you find anything wrong in the files I sent you for the Hardinge?
[15:26:56] <JT-Shop> work interrupts
[15:27:08] <Tom_L> don't let that ever happen!
[15:27:52] <JT-Shop> been out of town 3 4 day weekends out of the last 4...
[15:28:36] <nubcake> http://img.ifcdn.com/images/f07f6b7188681c31c4b1d86afefa4dcc844f2836a73140464c3aaecb1145d526_1.jpg
[15:28:43] <nubcake> gotta handle it like that guy i guess
[15:32:35] <Tom_L> ah found it
[15:32:58] <nubcake> nice
[15:34:01] <Tom_L> http://tom-itx.no-ip.biz:81/~webpage/reprap/din_clip_03.jpg
[15:34:13] <Tom_L> to fit a mesa card iirc
[15:34:27] <nubcake> nice
[15:34:46] <nubcake> i forgot to add the "insert screwdriver to remove" thing :'D
[15:35:12] <Tom_L> final ver had lightening holes in it
[15:35:24] <nubcake> sweet
[15:35:39] <JT-Shop> lol, I'm just starting the parts I was going to start at 8am...
[15:37:11] <Tom_L> http://tom-itx.no-ip.biz:81/~webpage/reprap/DIN_CLIP.jpg
[15:37:58] <Tom_L> JT-Shop save em for 2nd shift
[15:38:07] <nubcake> looks good to me
[15:41:06] <JT-Shop> 2nd shift is lazy
[15:41:54] <nubcake> woops, wrong button i guess
[15:43:59] <Jymmm> Tom_L: looks like three finger brass nuckles
[15:44:25] <Jymmm> JT-Shop: Just wait till 3rd shift!
[16:03:49] <Jymmm> Who was it that had condensation rusting his mill last year?
[16:09:43] <JT-Shop> Nick-Shop: when I modify a hal file I add as few lines as possible then check that it runs that way I know which line gives me a problem
[16:12:50] <Jymmm> When bending copper PIPE, do you use a spring inside or outside or does it matter?
[16:19:58] <JT-Shop> you don't bend copper pipe
[16:21:06] <Deejay> gn8
[16:21:33] <Nick-Shop> these 2 line are causing the tool lockout on the screen
[16:21:35] <Nick-Shop> #net tool-cng-req iocontrol.0.tool-change => classicladder.0.in-01
[16:21:36] <Nick-Shop> #net tool-cn-done iocontrol.0.tool-changed <= classicladder.0.out-01
[16:22:46] <Nick-Shop> uncomment them and no tool shows up on axis - never mind that the turret doesn't move
[16:26:43] <JT-Shop> you might try comparing my working configuration files with your non working ones
[16:27:55] <Nick-Shop> I certanly have done that and will do so again when I get back from town
[16:28:13] <Nick-Shop> Back later
[16:30:50] <witnit> Jymmm: I bend copper pipe alot as I use it for fluid lines, depending on the size of the pipe people fill it with sand or water and freeze them then bend. whats the project?
[16:31:15] <witnit> oh
[16:31:19] <witnit> hahah tubing is what I bend hahaha
[16:31:23] <JT-Shop> copper pipe or copper tubing
[16:31:28] <witnit> right
[16:31:33] <JT-Shop> yea you don't bend copper pipe
[16:31:44] <witnit> oh you're here PM spam time
[16:37:33] <Jymmm> JT-Shop: 1/2 PIPE... He shows a spring that goes INSIDE the pipe, but I've never seen that before is why I asked https://www.youtube.com/watch?v=pc3yud5JSsM
[16:39:39] <witnit> leeeeverage
[16:41:40] <XXCoder> mannnly leg bending :P
[16:41:47] <XXCoder> get a tool
[16:41:55] <XXCoder> tool between legs dont count
[16:47:49] <Jymmm> I got two cores out of the AC unit, one has 3/8" running thru it, the other is 1/4". being cheap, I'd love to toss one of those in the firebox, but with the aluminum find (even though their thick, this thing is 30+ years old) I doubt it would survive =)
[16:48:01] <Jymmm> s/find/fins/
[16:50:49] <yasnak> Any metallurgists here? I'm trying to find the best grade of carbide to EDM custom profiles. Using some top-knotch Kennametal K68's and its not exactly a fine finish.
[16:51:28] <XXCoder> Jymmm: alum dont age well?
[16:53:02] <Jymmm> XXCoder: Well, I would be tossing the entire core into the middle of the firebox, I figure the aluminum would melt/soften and the copper sweat joints would be bu-bye as well
[16:53:58] <XXCoder> why oput in firebox? in order to melt into alum ingots or?
[16:54:11] <Jymmm> XXCoder: I could be totally off here, but I'd guestimate the coals would be around 1200F
[16:55:06] <Jymmm> XXCoder: I'm playing around with a heating the garage.... Using wood fired firebox to heat water that would be fed in a open loop to the other core in the garage.
[16:55:26] <XXCoder> ahh so youre making coal fired heating system
[16:55:59] <XXCoder> I would ALSO use air exchanger to warm air too. grab as much heat as possible
[16:56:00] <Jymmm> XXCoder: Well, wood fired, but yeah. NOT closed like a boiler though
[16:56:26] <Jymmm> XXCoder: very much like how a coffee maker works
[16:57:44] <Jymmm> XXCoder: [Reservoir]---[check valve --> ]---[heating coil]---[coffee grounds]
[16:57:57] <XXCoder> cool
[16:58:29] <XXCoder> heh car radator is designed to really cool liquid off
[16:58:39] <XXCoder> I wonder if it means its very effecient air warmer too
[16:58:43] <Jymmm> XXCoder: You forgot heater core =)
[16:58:49] <XXCoder> indeed
[16:59:43] <Jymmm> this core is about 16" x 12" and I already have a 20" thermostat controlled box fan I can mount it to
[17:02:58] <Jymmm> XXCoder: I got one of these for free, considerinfg using it for the firebox and just line it with firebrick https://assets-production-webvanta-com.s3-us-west-2.amazonaws.com/000000/39/82/original/Newsstand.jpg
[17:03:11] <XXCoder> lol nice
[17:03:38] <XXCoder> but why not concerete pour though?
[17:03:50] <XXCoder> more termal stability though longer warm up time
[17:03:55] <mikeh> anyone good with forces? how many newtons do you think a 200lbs person could exert on a pair of handlebar's on a snowmobile? just looking ball park...
[17:04:04] <Jymmm> XXCoder: archivist said that concrete doens't hold up to fireboxes
[17:04:19] <XXCoder> ah hmm ok
[17:04:24] <Jymmm> mikeh: are they hitting a tree?
[17:04:32] <Jymmm> mikeh: (not a joke)
[17:05:34] <mikeh> yeah
[17:05:39] <Jymmm> mikeh: When a lady desided to make a left turn in front of me, my motorcycle could only do right turns after that.
[17:06:26] <mikeh> f=ma iirc
[17:06:35] <Jymmm> mikeh: the force of a body hitting the bars can make it bend easily
[17:07:15] <Jymmm> mikeh: just wasn't sure if you are accoutning for that
[17:07:35] <mikeh> i'm trying to design a riser for the bars
[17:07:48] <mikeh> so definately don't want them bending if you hit a tree at 20km/hr
[17:08:12] <mikeh> but maybe at 50 you're f'ed enough that you've totaled your sled anyways
[17:08:47] <Jymmm> mikeh: The biggest thing I've seen with riser is that never grip the bar enough and no matter how much you torque down the bolts, they always come loose at the worse possible moment.
[17:09:11] <Jymmm> mikeh: Eh, at 50 you might just get tossed into a snowbank
[17:09:14] <JT-Shop> yuck trying to convert a stl to a solid is like trying to make a silk purse from a sows ear
[17:10:04] <Jymmm> JT-Shop: I thought you were making parts for your trice, not purses
[17:10:10] <Jymmm> trike
[17:11:19] <JT-Shop> trying to make Spyder parts lol and multi-tasking... don't even have time to cruse the forum
[17:12:25] <Jymmm> =)
[17:13:05] <mikeh> i'm just confused with the math...force = mass * acceleration (m/s squared)
[17:14:00] <mikeh> so if we take 80kg * 13.9 we get 1112 newtons
[17:14:08] * JT-Shop has to take his shoes off to count above 10
[17:14:09] <mikeh> for 50kph
[17:14:15] <Jymmm> mikeh: http://zonalandeducation.com/mstm/physics/mechanics/forces/newton/mightyFEqMA/mightyFEqMA.html
[17:14:39] <renesis> eh, fuck physics
[17:15:10] <Jymmm> renesis: lol, you're in the wrong channel then, same goes for trig =)
[17:15:14] <mikeh> actually no...50kph = 13.9 m/s...but it's 13.9 squared
[17:15:23] <mikeh> hmm
[17:15:48] <renesis> jymmm: im taking diff equations right now
[17:15:53] <renesis> so yeah, fuck math
[17:16:02] <Jymmm> mikeh: calculator https://www.easycalculation.com/physics/classical-physics/force.php
[17:16:10] <Jymmm> renesis: hahahaha
[17:16:20] <mikeh> so 15456 newtons!
[17:16:21] <mikeh> wow.
[17:16:23] <renesis> wish i could go back to trig
[17:16:40] <renesis> ^dx^ wasnt fucking around when he told me to remember my identities
[17:17:01] <Jymmm> mikeh: better one http://www.calctool.org/CALC/phys/newtonian/fma
[17:17:10] <renesis> like, professor backed into a corner, busts out a trig identity, world saved
[17:17:48] <mikeh> hmm
[17:17:59] <renesis> what are you trying to figure out?
[17:18:07] <mikeh> so yea
[17:18:16] <mikeh> a shit ton of newtons :P
[17:18:18] <renesis> going 50kph in a second takes a lot of force
[17:18:32] <Jymmm> mikeh: 283 lbf
[17:18:51] <renesis> thats a torque, now im way confused
[17:18:58] <mikeh> i'm more trying to calculate how much force would be imparted on something going from 50 to 0, nearly instantly (hitting a tree)
[17:18:59] <Jymmm> or 1.25998 kN
[17:19:12] <mikeh> i guess there'd be some crumpling involved :P
[17:19:23] <renesis> oh, you can prob do that easy with inertia formula, shrug
[17:19:34] <Jymmm> 200 lbs @ 50 mph = 1.25998 kN
[17:20:06] <Jymmm> sorry
[17:20:07] <mikeh> well that's encouraging
[17:20:19] <Jymmm> 200 lbs @ 50 mph = 2.02774 kN
[17:20:50] <mikeh> i plugged in 1.5kN into fusion 360's force simulator and got a max of 169.6 MPa on my part
[17:21:03] <Jymmm> 300 lbs @ 50 mph = 3.04161 kN
[17:21:12] <mikeh> and 6061 should have a yield of ~270 MPa
[17:21:16] <renesis> mikeh: divide that by area
[17:21:18] <renesis> to get a force
[17:21:54] <renesis> or multiply by area
[17:22:09] <renesis> yeah because F/A * A = F
[17:22:42] * renesis wonder what mikeh smashing
[17:22:52] <mikeh> i don't think i should have to since the area of imparted force (from the handlebars) is the same as the area the force would be acting upon (where the handlebar risers connect...both 7/8" bars)
[17:22:55] <Jymmm> renesis: grapes
[17:22:58] <mikeh> renesis, snowmobile risers
[17:23:22] <mikeh> or...snowmobiles into trees
[17:23:39] <renesis> sorry confused i thought you were trying to compare to a sim value, didnt realize you got the sim value from entering the force
[17:23:44] <Jymmm> or speed bumps
[17:24:05] <Jymmm> heh, snow speed bumps =)
[17:24:10] <mikeh> i think my parts way over designed :P
[17:24:42] <Jymmm> mikeh: just sell it as a kit and blame the installer
[17:24:47] <mikeh> lol
[17:24:59] <renesis> is a safety factor of 1.6 according to sim, sounds about right
[17:27:22] <Jymmm> If I tossed one of these into a camp fire, think it would surviive without leaking ? http://ep.yimg.com/ay/yhst-48869800928540/peterbilt-heater-core-oem-b20011s-3.jpg
[17:27:55] <Tom_L> full or empty?
[17:28:03] <Jymmm> both?
[17:28:10] <Tom_L> no and yes
[17:28:14] <Jymmm> (worse case scenario)
[17:28:31] <Tom_L> i melt aluminum cans in campfires
[17:28:43] <Jymmm> Tom_L: would the fins if it was full?
[17:28:55] <Tom_L> good way to find out...
[17:29:00] <Jymmm> haha
[17:29:21] <Jymmm> I really don't care about he find, mostly the copper sweat joints
[17:29:34] <Jymmm> I really don't care about the fins, mostly the copper sweat joints
[17:29:45] <Tom_L> if it was empty it wouldn't survive
[17:30:05] <Jymmm> full ?
[17:30:13] <Tom_L> should be ok
[17:30:23] <Tom_L> you revisiting the heatplant thing?
[17:31:35] <pink_vampire> nubcake: link to the file?
[17:31:47] <Jymmm> Tom_L: Sorta, I just pulled apart a window AC for it's cores. one for in the garage, and either a copper coil or something for the firebox, but this is going to be an open loop (no pressure build up
[17:32:15] <Tom_L> i got one in the back yard you can come pick up
[17:32:25] <Jymmm> one what?
[17:32:36] <Tom_L> A coil & compressor unit
[17:32:51] <Jymmm> I just finished puling apart this one =)
[17:33:14] <Jymmm> Tom_L: one idea https://i.ytimg.com/vi/nAORPy4J6j8/maxresdefault.jpg
[17:34:04] <Jymmm> I'm just not sure on volumes needed to heat the garage
[17:34:16] <Tom_L> talk to rue
[18:33:03] <witnit> Jymmm: parts like these might do well for getting you off the tubing ends https://www.google.com/search?q=brass+compression+fittings&client=ubuntu&hs=sqD&channel=fs&biw=1600&bih=807&source=lnms&tbm=isch&sa=X&sqi=2&ved=0ahUKEwin6LiFs9vPAhWH64MKHS68D0wQ_AUIBygC
[18:35:54] <JT-i3> XXCoder: I got some of my new E3D hot end installed but the top does not fit
[18:36:29] <Jymmm> witnit: Yeah, just need to figure out what I'm putting on the other side of them first =)
[18:45:05] <Jymmm> witnit: I think I'm going to use pex tubing as it's 1/2" and easily available and rather cheap at $28/100ft
[18:49:47] <witnit> I wonder if a cheap one of these could be useful https://s-media-cache-ak0.pinimg.com/originals/be/40/7d/be407d37476f54a66473cb6a0184fb96.jpg
[18:49:56] <witnit> like an old one getting scrapped
[18:50:30] <Jymmm> this is what I have http://ep.yimg.com/ay/yhst-48869800928540/peterbilt-heater-core-oem-b20011s-3.jpg
[18:50:38] <Jymmm> well from a wndow AC that is
[18:52:42] <witnit> hmm, with that maybe it would do well submerged in water and the whole unit heated, the transfer rate would be best as is I would think and you could not have to modify the solder points?
[18:54:03] <witnit> I really dont know what you're doing, im just throwing ideas at you to consider
[18:54:09] <Jymmm> that core will go in the garage attached to a 20" box fan
[18:54:20] <Jymmm> witnit: wood fired heat for the garage
[18:54:57] <Jymmm> witnit: outdoor firebox
[18:55:19] <witnit> got it
[18:55:33] <witnit> sounds like a resourceful and functional payoff when its done
[18:56:26] <Jymmm> I need to figure out how much/big things I need without other engineering it to much.
[18:57:11] <Jymmm> s/other/over/
[19:09:24] <nubcake> any ideas what kind of surface (leveled) i should use on my heatbed for best results? thin steel plate, aluminium? anything else?
[19:10:23] <jdh> 19:18 <~Zed> https://j.mp/2e85XaB
[19:10:40] <nubcake> friggin glass plate that came with the printer is bull****, not even at all, height difference within 20cm is about 3mm...
[19:12:30] <Jymmm> jdh: you?
[19:13:38] <Jymmm> jdh: I guess you'r not a Chang ;)
[19:21:25] <XXCoder> JT-i3: doh time to print replacements heh
[19:35:18] <malcom2073_> nubcake: PEI
[19:35:51] <malcom2073_> Oh a level surface
[19:35:57] <malcom2073_> I use a 1/4" aluminum plate for mine
[19:35:59] <malcom2073_> Fairly level
[19:44:14] <Jymmm> We need a universal fitting that fits 1/8 to 1" pipe =)
[19:45:11] <Jymmm> ...besides duct tape that is ;)
[19:49:14] <malcom2073_> JB weld!
[19:51:14] <XXCoder> 3d print it
[20:07:52] <jdh> no clue how that got pasted
[20:09:18] <BeachBumPete> happy Friday evening linuxCNC :)
[20:09:18] <XXCoder> vbooodoooooo
[20:09:30] <XXCoder> how goes things BeachBumPete
[20:09:40] <BeachBumPete> very good thanks you?
[20:09:52] <XXCoder> pretty good
[20:10:20] <roycroft> happy weekend!
[20:10:47] <roycroft> we have the remnants of a typhoon showing up tonight and tomorrow
[20:10:53] <roycroft> nothing like folks in the southeast got
[20:10:53] <BeachBumPete> well folks........She's HERE!! :)
[20:11:00] <roycroft> but it's still going to be pretty nasty
[20:11:07] <jdh> nicole?
[20:11:10] <roycroft> the wind is already picking up
[20:12:18] <XXCoder> happy blustery day
[20:12:23] <BeachBumPete> I thought I was the only one who had to deal with nasty storms LOL
[20:12:41] <jdh> really
[20:12:43] <XXCoder> BeachBumPete: washington state is getting sacked with storms and wind
[20:12:48] <roycroft> 120km/h gusts tomorrow
[20:13:05] <dioz> if i cut the ends off my bosch 18v lion battery chargers and wire them all together so i can plug them into one plug-in is that bad?
[20:13:26] <malcom2073_> dioz: No worse than welding galv
[20:13:33] <dioz> HAH!
[20:13:35] <jdh> I-95 and I-40 are still closed here from matthew
[20:13:42] <dioz> ^5 malcom2073_
[20:13:44] <BeachBumPete> wow really?
[20:13:55] <roycroft> our storm is bad enough that it actually made the national news
[20:14:03] <jdh>
[20:14:06] <malcom2073_> dioz: As long as you use large enough wire, connect them together properly, and fuse appropriatly, then sure it's safe.
[20:14:11] <roycroft> and we get some pretty severe storms that nobody outside the area knows about
[20:14:44] <roycroft> snowstorms in the northeast, fires in california, tornados in the bread belt, and hurricanes/flooding in the south/southeast make the news
[20:14:45] <dioz> malcom2073_: how about a single 3 to 1 power splitter?
[20:14:51] <jdh> houses still flooding, people still dying
[20:14:53] <roycroft> fires and storms in the northwest don't
[20:14:53] <malcom2073_> I just have a power strip below my charging station to let me charge several dewalt batteries at once
[20:14:56] <BeachBumPete> well anyway I managed to get the rollback wrecker arranged tonight and had my VMC moved into my shop.
[20:15:04] <BeachBumPete> its finally here safe and sound
[20:15:15] <malcom2073_> Single plug, no soldering/cutting, and switch to turn on/off
[20:15:16] <dioz> malcom2073_: i wanna rig it all into a toolbox so i can keep all the chargers and batteries in one toolbox
[20:15:18] <roycroft> so what are you doing here instead of making parts?
[20:15:36] <malcom2073_> I'd put a power strip in, build it into the drawer. Also be aware, some battery chargers can get *really* hot
[20:15:36] <BeachBumPete> which completes the total journey of ours from Tennessee to Florida FINALLY :)
[20:15:39] <XXCoder> dioz: just watch number of ams from single wall soocket heh
[20:16:01] <XXCoder> *amps
[20:17:07] <jdh> I'll be checking in to a cheap fl motel 7 days from about now
[20:17:38] <BeachBumPete> Oh yeah whereabouts?
[20:18:01] <jdh> historic High Springs
[20:18:22] <jdh> delray in march
[20:18:35] <BeachBumPete> never heard of it
[20:19:05] <dioz> HIT SONGS ON MY DEMP
[20:19:12] <jdh> heh. how about mayo, branford, live oak?
[20:19:12] <dioz> :s/demp/demo
[20:21:13] <BeachBumPete> I must say that I kinda wish I had one of those rollback wreckers. Such a cool machine. too bad I don't have anywhere to keep one LOL
[20:23:33] <XXCoder> yo zeeshan been a while
[20:23:40] <zeeshan> hi
[20:23:40] <zeeshan> :)
[20:23:47] <zeeshan> whats going on
[20:24:16] <XXCoder> sorting my store order :P
[20:24:20] <XXCoder> then 3d printing stuff
[20:24:35] <zeeshan> what 3d printer do you have again
[20:24:37] <XXCoder> still waiting on tb660s and BOB :( delivery is so slow
[20:24:42] <XXCoder> prusa i3
[20:24:45] <XXCoder> chinese clone
[20:24:50] <zeeshan> nice
[20:28:16] <XXCoder> recently got glass for it lol
[20:28:26] <XXCoder> from $1 store 8x10 picture frame
[20:34:00] <nubcake> malcom2073_ thanks for the hint :)
[20:54:38] <nubcake> night everyone
[20:56:32] <XXCoder> JT-i3: http://picpaste.com/pics/IMG_20161014_165851-7Bw6y6sf.1476489658.jpg
[21:12:45] <bnz> ih ave some questions about a mesa card and how it all works… i have my card installed and have hal configured to recognise it. now i want to wire it up, now i am not using any daughter cards and i want to simplify the wiring for my use case, can anyone tell me if can directly modify the PIN and xml files to move signals around more than the defaults allow? at the moment i am using svst8_8IM2 which has all the stepgens on one connector but
[21:12:46] <bnz> the rest of that connector is dedicated to index pins for encoders and thats all the guy will allow me to select.
[21:12:58] <bnz> guy=gui....
[21:13:35] <bnz> what i want to do is move all my output signals to one mesa connector and all the inputs to another and the third connector to drive the tool changer.
[21:14:10] <bnz> will i have to compile custom firmware for this or can i do it all from the command line and text file editing.
[21:14:43] <BeachBumPete> why don't you want to use daughter cards they are very flexible and much easier than writing custom firmware I would think?
[21:15:51] <bnz> as far as i am aware the daughter cards are just opto interfaces, they don't allow for any more grouping than what i have at the moment.
[21:16:44] <bnz> that is one daughter card connects to one socket on the mesa card. they don't allow mixing of signals from multiple connectors on the mesa card.
[21:17:33] <jdh> zo
[21:18:06] <bnz> and what i am trying to do is avoid compiling custom firmware. while its not beyond me i just don't want to waste that time.. if its the only way thats fine but from what i have read i shouldn't have to compile anything. but i am not 100% clear on how all the files work together.
[21:19:03] <bnz> if its just a case of writing net files for hal i am good enough with that. just need to know what is the right way to do what i want.
[21:19:32] <BeachBumPete> well I am certainly no expert with mesa hardware but my VMC runs the 5i25/7i77 cards and it was about as easy and flexible as could be possible so far. I am doing another machine a CNC lathe the same way.
[21:20:18] <pcw_home> If you need things like stepgens on specific pins you will need to compile a new bitfile
[21:21:46] <bnz> ok so if i can't find a firmware that supports the functions i need on a certain pin to suit my quirks thats when firmware needs to be rewritten.. ok. i can't just change the XML and PIN file to do my bidding beyond what i see at the moment..
[21:22:45] <pcw_home> the .pin and .xml files simply reflect a specific firmware pinout
[21:24:47] <bnz> ok cheers. thanks for the clarification.. i will see what i can get done with the firmware i have.. i should be ok it just means the physical wiring might get messy.
[21:25:05] <bnz> and mess means noise :(
[21:25:06] <pcw_home> The pinout is defined in the PIN_XXXX_NN.vhd source file, so a new pinout involved making a new PIN_XXXX_NN.vhd source file
[21:25:07] <pcw_home> (or modifying an old one) and re-compiling
[21:26:56] <bnz> i haven't done any fpga/vhd coding so i have to do a lot of reading before i attempt that. today i will put my time towards making it move an axis or four then i will see how bad the wiring will be after that..
[21:28:26] <bnz> this machine was working from a dual pci par port card… that worked ok but then i found i was running out of pins to drive the tool changer. so i got a 6i24 card and just about to wire up a LED board to help me wire it all up..
[21:28:45] <bnz> i like to see leds blinking and traces on scopes :)
[21:28:56] <pcw_home> unfortunately most of the bitfiles are aimed at specific daughtercards (and many of the step/dir pinouts are odd since they are example files for table mode)
[21:30:57] <pcw_home> if you are using bare FPGA signals beware of ESD and any voltage < .3V or >7V
[21:31:21] <pcw_home> < -0.3V I mean
[21:31:25] <bnz> thats what i was thinking.. the firmware options i have seen seem pretty varied so i think its just a matter of looking at each firmware's pin allocation and see whats good for me. eventually i can see that i will have to make a custom firmware somw time
[21:34:29] <bnz> yes i take ESD precautions.. but i will have to check all my driver boards to make sure none of them are doing anything unexpected… the par port card was pretty tolerant of what i did to it but that was probably a little tougher than this chippy :)
[21:36:26] <bnz> i spent most of the night last night fighting the pconfwizard it was naming the pins wrong and that took me a while to work out what was wrong… today the plan was to make the led board and see whats going on before i wire it up to the driver boards.
[21:38:05] <bnz> have to mount two more motor driver boards and make a servo interface board up. that will be optically isolated from the mesa card…
[22:19:37] <XXCoder> ohhhhh
[22:19:39] <XXCoder> https://www.indiegogo.com/projects/meet-the-smart-cube-tech-that-protects-security-family#/
[22:19:53] <XXCoder> sure its for security.... but it can be used for anything else.
[22:33:29] <XXCoder> jthornton: yo?
[22:43:45] <SpeedEvil> I would - without detailed and careful examination assume that the security capability is equal to a sticker on the lock saying 'go away' with the key taped to it
[22:44:06] <XXCoder> yeah I wouldnt depend on it on securty
[22:44:17] <XXCoder> but activation using phone seems cool
[22:44:21] <SpeedEvil> Also 'partners'
[22:44:26] <XXCoder> too pricy to hack once indiegogo ends
[22:44:37] <SpeedEvil> Is arrow really a partner, or did they actually order some components
[22:44:52] <SpeedEvil> ESP32 has bluetooth
[22:45:17] <XXCoder> it can also be used for bombs if you have power source :P
[22:45:23] <XXCoder> remote trigger
[22:52:03] <bnz> on the list you go xxcoder…. more like an extra star next to your entry on the list :)
[22:52:31] <XXCoder> yy gold star!!
[22:53:07] <bnz> did you see the article about the isis drone that had a bomb strapped to it.. the locals shot it down then they took it back to the base and it blew two of them up, while trying to pull info out of it...
[22:53:23] <XXCoder> ow
[22:53:27] <bnz> it was only a matter of time..
[22:55:51] <bnz> and someone else has worked out that if you point russia's new fighter jet jamming equipment at a drone it stops it pretty much dead in its tracks. but only reportedly to work within 1/2mile
[22:56:13] <bnz> 800m is still a pretty good buffer from a small drone bomb
[23:21:33] <SpeedEvil> well - that depends.
[23:21:46] <SpeedEvil> Making a drone that will operate in a working microwave oven is quite possible.
[23:21:51] <SpeedEvil> Annoying, but possible.
[23:21:55] <bnz> they were using small commercial drones.
[23:22:12] <SpeedEvil> if you're talking off-the-shelf unmodified - no.
[23:22:19] <bnz> can't fit a large payload and lot of good sheilding
[23:22:24] <SpeedEvil> jamming the control is trivial
[23:22:55] <bnz> oh this takes them down.. as it drop out the sky,… it disrupts the electronics that drives the motors..
[23:23:04] <bnz> as well as the radios
[23:23:41] <bnz> i do get what you are saying…
[23:23:43] <SpeedEvil> I question if that can be done with relatively minimal mods.
[23:24:01] <bnz> get between the two radios and yell loud enough so they can't not listen to you..
[23:24:15] <SpeedEvil> For example, a sealed thick aluminium foil shield round all the components, soldered round the edge.
[23:24:24] <bnz> i wonder how well gold foil would do..
[23:24:41] <SpeedEvil> with only four holes for motors, and perhaps optical window for backup control.
[23:24:44] <bnz> shielded cables on everything. and be careful about ground loops etc..
[23:25:04] <SpeedEvil> stock unshielded are quite vulnerable.
[23:25:11] <bnz> its just not found on a comical off the shelf at walmart style..
[23:25:52] * SpeedEvil ponders trying to do a mockup for an oven.
[23:26:38] <SpeedEvil> ESC + battery + servo tester + little foil box.
[23:26:43] <Jymmm> SpeedEvil: No, you can't use a CFL in your easy bake oven
[23:26:54] <bnz> I'm thinking that a household microwave would be a good start you just gotta get far enough away to simulate a bit of distance..
[23:27:05] <SpeedEvil> bnz: I mean actually inside.
[23:27:05] <bnz> heheheh
[23:28:25] <bnz> yeah i thought about inside but thats a seal environment the eddie currents alone would fry most chips. they usually don't really have a power control on the magnetron, they just turn it on for shorter periods of time as opposed to running them at 25% 50% 755
[23:29:09] <bnz> so to make it realistic you would need to open that beast up and get some distance say 1meter to see if its viable..
[23:29:15] * Jymmm takes a 2MV stun gun to bnz's drone(s)
[23:29:28] <bnz> hmmmm power…
[23:29:49] <bnz> nothing like a little man made lightning to take care of the pests :)
[23:30:06] <SpeedEvil> shielding can reduce the field inside to ~0
[23:30:09] <Jymmm> yep
[23:30:18] <SpeedEvil> (inside the shielded quad)
[23:30:26] <Jymmm> SpeedEvil: not againest 2mv it can't =)
[23:30:37] <Jymmm> MV
[23:30:48] <Jymmm> SpeedEvil: snap crackle POP =)
[23:30:49] <bnz> yeah but the power density inside a oven is pretty high.. 750watts in a small 1 foot cubed
[23:30:56] <SpeedEvil> yes
[23:31:54] <Jymmm> Wait, it you shield everything, then the drone would need to be autonomous
[23:32:35] <Jymmm> faraday cage
[23:32:51] <SpeedEvil> Jymmm: LASER works fine
[23:33:02] <bnz> you can leave an antenna poking out as long as its tuned and doesn't pick up the jamming freq.. but thats where the optical backup comes in that was mentioned :)
[23:33:43] <Jymmm> laser? or do you mean optical?
[23:33:44] <Kevin`> even a badly tuned antenna would pick up too much power
[23:34:04] <Kevin`> and all commercial and 90% diy radios use the same frequency as microwave ovens
[23:34:11] <bnz> i guess you would have to have some way to filter and dump that power.
[23:34:57] <bnz> a lot of the new drones come in 5ghz varieties now...
[23:36:01] <bnz> they are using wifi chipsets.. unless you are talking real drone with FPV and all the jazzy bits they are still on 2.4ghz with their own protocol
[23:36:39] <Kevin`> wifi would be even easier to jam, and even more line-of-sigh-y than some theoretical custom 5ghz
[23:36:45] <Kevin`> i've only seen 5ghz used for video
[23:37:32] <Jymmm> anti drone http://www.instructables.com/id/Build-A-Net-Gun/
[23:37:45] <bnz> ahh that kinda makes more sense.. video need the bandwidth
[23:40:37] <bnz> i never really understood the switch to 2.4ghz it just doesn't travel or penetrate as good as the lower freq.'s…. video is the only thing i have seen that needs the hight freq
[23:41:32] <XXCoder> higher freq = more bandwidth
[23:41:43] <XXCoder> lower freq = better pentration and range
[23:43:12] <bnz> i understand the need to get away from 27mhz that has all sorts of nice skip qualities that don't bode well for RC stuff..
[23:43:26] <bnz> but the jump to 2.4ghz was a bit high