#linuxcnc | Logs for 2015-10-09

[00:06:00] <Contract_Pilot> Looks like my PSU's shipped in 1 Package.
[02:30:46] <Deejay> moin
[02:34:02] <norias> hi
[02:38:26] <Deejay> o/
[02:40:31] <norias> ?
[03:55:07] <ganzuul> o/
[03:55:19] <ganzuul> CArbon fiber tow isn't that expensive!
[04:37:48] <ganzuul> If I mix say aluminium powder filler with epoxy, empregante a fiber, and put it in the freezer to cure, would the expansion of the alu cause tension strengthening of the part?
[04:49:25] <XXCoder> ganzuul: good PHD exterment and essay
[04:53:50] <ganzuul> :<
[05:00:08] <XXCoder> heh
[05:00:23] <Contract_Pilot> Pulled the sherline motors and hooked them up to my mach machine to test.
[05:00:29] <Contract_Pilot> Motor 1 Test
[05:00:29] <Contract_Pilot> https://youtu.be/BhR72KLQ6O4
[05:00:29] <Contract_Pilot> Motor 2 Test
[05:00:29] <Contract_Pilot> https://youtu.be/J2SDq9K-DEM
[05:00:29] <Contract_Pilot> Motor 3 Test
[05:00:29] <Contract_Pilot> https://youtu.be/gLMgKXCxvvE
[05:00:31] <Contract_Pilot> Motor 4 Test
[05:00:33] <Contract_Pilot> https://youtu.be/fYtbFUnHGhI
[05:00:35] <Contract_Pilot> Motor 5 Test
[05:00:37] <Contract_Pilot> https://youtu.be/NDDBJRTojL4
[05:08:00] <XXCoder> random thought
[05:08:09] <XXCoder> would stepper be usable as spinjdle lol
[05:09:19] <XXCoder> cool Contract_Pilot
[05:09:49] * ganzuul clicks all Contract_Pilot's links...
[05:10:37] <ganzuul> CFRP tube prefam might be more economical...
[05:10:47] <Contract_Pilot> They on Fee Bay hahaha figured i would atleast show that the motors work.
[05:11:49] <Contract_Pilot> They do not seem like bad little motors.
[05:12:42] <Contract_Pilot> My replacement PSU is on the way odd they shipping from Federal Way WA hahaha
[05:13:26] <ganzuul> oic
[05:36:37] <ganzuul> Oooh. Racing tracks produce recyclable carbon fiber.
[05:42:26] <ganzuul> Reportedly, retains stiffness after being chopped up.
[06:22:23] <Contract_Pilot> Should have had a tracking number for the 20 stepper kits today about 86lbs hahaha
[06:30:59] <malcom2073> Haha wow, nice. Free shipping too?
[06:36:04] <Contract_Pilot> http://www.stevenrhine.com/wp-content/uploads/2015/10/Sumtor-Elec-MB450A-Manual-English.pdf
[06:36:18] <Contract_Pilot> Yep.
[06:36:42] <Contract_Pilot> If they ship.
[06:38:20] <malcom2073> I got 8 on order
[06:40:36] <Contract_Pilot> Need to get a cart to put this sherline on so wife can use the table.
[06:40:58] <malcom2073> Heh
[06:44:58] <XXCoder> wonder if this would be suffecent for my router http://www.amazon.com/dp/B00880AVL2/ref=dra_a_rv_ff_fx_it_P2000_1000?tag=dradisplay-20&ascsubtag=7f6149f898806a82975fb7dc7b122263_S&dra_hfr=1&dra_ohs=0-0
[06:45:03] <XXCoder> 2 of em
[06:46:44] <malcom2073> That's pretty small, but if you're only running 4 stepper wires
[06:46:59] <malcom2073> I 3d printed a whole bunch of cable chain, gonna see how well it holds up
[06:47:06] <XXCoder> nice
[06:47:13] <XXCoder> I was thinking of milling em lol
[06:47:20] <malcom2073> Out of metal? :-D
[06:47:22] <malcom2073> That'd be nice
[06:47:27] <XXCoder> plastic lol
[06:47:41] <malcom2073> Aww no fun
[06:48:01] <XXCoder> or wood
[06:48:01] <XXCoder> https://www.youtube.com/watch?v=JAWcicckaMA
[06:48:17] <XXCoder> it is wood cnc router lol
[06:48:23] <XXCoder> looks kinda ugly though
[06:48:58] <malcom2073> Fancy
[06:49:00] <malcom2073> It is ugly
[06:49:39] <malcom2073> But if your woodrouter is made out of wood
[06:49:40] <malcom2073> it would fit
[06:49:47] <XXCoder> it isnt
[06:50:49] <XXCoder> thingverse dont seem to have drag chain that can be flat built
[06:51:42] <malcom2073> https://www.youtube.com/watch?v=4e5Gzn5XFcY
[06:51:44] <malcom2073> Not a terrible design
[06:51:57] <malcom2073> Of course it doesn't, why would you flat build a 3d printed item? :P
[06:52:16] <XXCoder> thingverse is all 3d print stuff I guess?
[06:52:23] <Contract_Pilot> Shielded 20/4 wire is about 7-8mm
[06:52:38] <Contract_Pilot> 20/6 is abotu 15mm
[06:52:49] <XXCoder> I think I would get 25 mm one. slight more money but works out fine
[06:53:16] <XXCoder> not too sure how to handle X wires. it cant be in wire carrier but need to run by it I guess
[06:53:46] <XXCoder> X wires is currently pretty badly secured. Y and Z both has okay short term secure by ziplocs
[06:54:01] <XXCoder> malcom2073: I like that design
[06:54:06] <XXCoder> can be made from whatever
[06:54:51] <XXCoder> awwww
[06:54:54] <XXCoder> drawings not found
[06:55:14] <XXCoder> found a copy
[06:55:19] <malcom2073> Leave extra room for endstops or whatever else you want to run in it
[06:55:27] <Contract_Pilot> Server updated my word press been fixn my blog
[06:55:34] <malcom2073> Heh
[06:55:47] <XXCoder> I probably would use CAT5 wires for that
[06:56:02] <XXCoder> it needs very little current, and cat5 is designed to carry little current a long way
[06:59:22] <XXCoder> I wonder if I can get away with just home switches
[06:59:28] <XXCoder> then software limit
[06:59:38] <malcom2073> I don't see why not
[06:59:51] <XXCoder> I already has 6 switches though so dunno
[07:00:04] <XXCoder> still completely stuck on how to place em
[07:01:44] <XXCoder> honestly drag chains are so cheap on amazon can just stright uo buy em
[07:01:57] <XXCoder> I would buy 2 sizes, for Y cross and X cross
[07:02:16] <XXCoder> Z dont need one as it uses motor wires and travel is way too short to even endanger it
[07:02:40] <malcom2073> Yeah they're cheaper than the time it would take to design/make some
[07:02:53] <XXCoder> I would make some for fun later though
[07:02:57] <XXCoder> using scrap plastic
[07:04:53] <XXCoder> I need to make a box for my tb6560 lol
[07:05:06] <XXCoder> its cardboard box is little "risky free" lol
[07:05:51] <malcom2073> heh
[07:21:36] <XXCoder> http://www.aliexpress.com/item/USB-50-Megapixel-HD-Webcam-Web-Cam-Camera-Microphone-Mic-3-LED-PC-Laptop-Skype-Free/32226719014.html
[07:21:48] <XXCoder> 50 MP, or more likely, 50 micropixels lol
[07:22:17] <XXCoder> wow https://www.youtube.com/watch?v=n_6p-1J551Y
[07:22:32] <malcom2073> Heh
[07:23:38] <malcom2073> Heh people are weird
[07:26:06] <XXCoder> no! you didnt say?
[07:26:07] <XXCoder> heh
[07:29:03] <Jymmm> https://www.coursera.org/learn/machine-learning
[07:29:46] <Jymmm> jthornton: https://www.coursera.org/learn/python
[07:29:50] <malcom2073> I like coursera
[07:30:45] <XXCoder> captioned nice
[07:31:08] <XXCoder> geeeeeez
[07:31:20] <XXCoder> and I thought 50 MP was crazy http://www.aliexpress.com/item/New-A-matal-USB-2-0-30-0M-WEBCAM-HD-CAMERA-WEB-CAM-MIC-FOR-Computer/32367537895.html
[07:31:42] <XXCoder> yet max is 2560x1920 lol
[07:32:03] <malcom2073> Heh pixels are easy, optics are not
[07:32:25] <XXCoder> sure but there is such thing as 1200 mp camera
[07:32:26] <malcom2073> Lol 1024x768 max
[07:33:18] <Tom_itx> zlog
[07:33:37] <_methods> http://makezine.com/2015/10/08/makerbot-lays-off-20-of-its-staff-for-the-2nd-time-this-year/
[07:33:40] <_methods> lol
[07:33:42] <malcom2073> Haha "If item is defective we will replace, please ensure item is in resaleable condition when shipping back"
[07:34:38] <malcom2073> "Working with a contract manufacturer" China ftw!
[07:34:50] <Jymmm> https://www.coursera.org/course/vlsicad
[07:38:56] <Jymmm> https://www.coursera.org/learn/learning-how-to-learn
[07:39:17] <XXCoder> First: invent inventing
[07:41:03] <malcom2073> 3/10: Couldn't complete class without first completing class to learn how to learn to complete class
[07:43:32] <Jymmm> Algorithms, Part I - https://www.coursera.org/course/algs4partI
[07:44:46] <malcom2073> I took that class a while ago
[07:45:08] <Jymmm> malcom2073: and?
[07:45:10] <malcom2073> Highly recommend it for anyone who is self-taught programming
[07:45:21] <Jymmm> malcom2073: you flunked it, huh?
[07:45:25] <XXCoder> took that class in college
[07:45:26] <XXCoder> fun
[07:45:28] <malcom2073> HEh
[07:45:38] <malcom2073> Nah, but I did learn a lot, and I've been programming for 5+ years
[07:45:46] <XXCoder> I used what I learned in asm programming class
[07:46:04] <XXCoder> wrote a merge sorter in asm. was only one who didnt use bubble sort
[07:57:12] <SpeedEvil> http://forum.electricunicycle.org/topic/1385-warning-dont-ride-with-v126-firmware/?page=1 - on bleeding edge firmware
[07:59:37] <malcom2073> electic unicycle? That just sounds like a terrible idea
[08:00:38] <SpeedEvil> :)
[08:01:10] <malcom2073> https://www.youtube.com/watch?v=IzHwS9PUdfE
[08:01:14] <malcom2073> Yep, that is a terrible idea
[08:17:29] <Jymmm> SpeedEvil: "If you live on the bleeding edge, you are bund to get cut" =)
[08:17:38] <Jymmm> bound*
[08:18:57] <Jymmm> Thus why I always disable automatic updates =)
[08:20:44] * Jymmm always lets someone else be the beta bitch these days =)
[08:20:54] <malcom2073> +1 for that
[09:02:17] <Wolf_> lazy on updates usually saves my ass w/ the iphone
[09:02:44] <Wolf_> they are really good at .0 firmwares breaking everything
[09:06:08] <Contract_Pilot> Updating my sherline blog
[09:06:59] <Contract_Pilot> http://www.stevenrhine.com/?p=1175
[09:07:21] <Contract_Pilot> Still need to do the colors after server updated my theme
[09:16:15] <_methods> https://www.youtube.com/watch?v=KNsjvZk8nT0
[09:16:27] <_methods> lambo down lol
[09:17:07] <Sync> look at the numberplate
[09:18:10] <malcom2073> Ah dubai
[09:20:38] <Wolf_> aww so sad….
[09:20:54] <_methods> italian engineering lol
[09:21:05] <Wolf_> feature imo
[09:24:19] <Sync> well it says isis in leetspeak, so hmm :D
[09:27:59] <Contract_Pilot> Long night.
[09:31:36] <skunkworks> flashers stayed on for a long time
[09:32:26] <Sync> yeah but something went wrong, even though it is italian, modern supercars tend to be much less firey than their predecessors
[09:35:37] <_methods> woman driver
[09:37:11] <_methods> https://instagram.com/victoria.vikki/
[09:43:30] <malcom2073> I would laugh if the rental company caught wind of the youtube video of her revving it up, and refused to cover it
[09:54:57] <Sync> zeeshan: 25 autosport connectors ordered :)
[09:55:06] <ssi> morn
[09:55:12] <ganzuul> o-
[09:55:15] <ganzuul> o/
[09:55:24] <Sync> _methods: probably still insured
[09:55:40] <Sync> best thing about rentals is the full liability insurance :D
[10:03:03] <_methods> hehe
[10:07:04] <Sync> had to use it once
[10:08:34] <ssi> I got rearended real bad a couple years ago, and while my car was in the shop they provided me a rental
[10:08:45] <ssi> and I didn't get the insurance, because it is covered under my regular car insurance
[10:08:52] <ssi> and then someone rearended me in the rental car D:
[10:09:14] <Sync> rekt
[10:12:16] <ssi> http://www.scribd.com/doc/222591707/MC15-Cri-Cri-Plans-Binder#scribd
[10:12:19] <ssi> who wants to build a cricri with me
[10:13:18] <Wolf_> hehe looks like fun
[10:13:52] <malcom2073> ssi: I'll help build it, but I'll sure as hell not get in it :P
[10:13:55] <ssi> :D
[10:15:11] <malcom2073> I'll bet my 5x10ft router I want to build would be great for cutting out those wing ribs
[10:15:52] <malcom2073> Ohhh, they're sheet metal?
[10:16:12] <ssi> yep
[10:16:18] <ssi> but the router would be ideal for making form blocks
[10:16:21] <malcom2073> plasma!
[10:16:33] <malcom2073> Or laser
[10:16:38] <SpeedEvil> Now I am imagining someonee who leaked plans with the wings on upside down.
[10:16:39] <ssi> https://www.youtube.com/watch?v=PUgXlYMLAkI
[10:16:43] <Wolf_> or water jet
[10:17:28] <ssi> cut router templates and form blocks out of mdf, and the rest is just hand work with a router/follow bit and a hammer :)
[10:17:37] <malcom2073> Nice
[10:18:08] <ssi> whoa this guy made a corian form block
[10:18:25] <malcom2073> Is that corian? thought it looked weird
[10:18:51] <ssi> vans hydroforms all their ribs and bulkheads
[10:19:26] <malcom2073> Damn, that's a lot of work to replace a single press operation in a factory heh
[10:19:31] <ssi> yep
[10:19:49] <ssi> but it's cheaper to bang out fifty ribs than it is to tool up to press them :)
[10:19:53] <Wolf_> could mill some press dies out :P
[10:20:00] <malcom2073> Yeah
[10:20:03] <malcom2073> Though I have a 50T press
[10:20:46] <ssi> well if you intend to become a kit manufacturer then it'd be worth it to make some dies
[10:20:56] <ssi> if you're gonna build one aircraft, probably not :)
[10:21:03] <malcom2073> Heh
[10:21:15] <malcom2073> Probably some money in kits
[10:21:17] <Wolf_> metal that light wouldnt need much I bet
[10:21:21] <malcom2073> lots of people woudl buy ktis just to never build them
[10:21:21] <ssi> also on an airplane like this, it's rectangular wing so for the most part the ribs are all the same
[10:21:35] <ssi> on taperwing airplanes you need a dozen different forms
[10:21:41] <malcom2073> yeah
[10:23:26] <ssi> I like how he's got the flutes built into the form
[10:23:50] <ssi> you have to either flute the flanges or shrink them, or else the rib doesn't stay flat
[10:24:07] <malcom2073> Pretty slick
[10:25:55] <ssi> http://www.jetcatusa.com/rc-turbines/turbine-details/p200-sx/
[10:25:59] <ssi> there's our powerplants for the cricri :D
[10:26:11] <malcom2073> Haha I've seen those, they're nuts
[10:26:18] <ssi> 104lb thrust on a 375lb gross airplane is gonna go like stink
[10:26:24] <malcom2073> Heh
[10:26:46] <Wolf_> nice :D
[10:27:12] <malcom2073> Hmm, two of them, that's a gallon of fuel every two and a half at full power :)
[10:27:16] <malcom2073> two and a half minutes
[10:27:53] <ssi> 24gph at takeoff power
[10:27:55] <ssi> that's not that bad really
[10:27:58] <ssi> for a pure jet
[10:28:04] <malcom2073> Oh heh, ok
[10:28:14] <ssi> I mean the cricri as drawn only holds 5 gallons :)
[10:28:37] <malcom2073> Wonder how much fuel it would use cruising
[10:29:00] <ssi> hard to estimate without knowing a few things
[10:29:22] <malcom2073> A lot of thigns I'm sure
[10:30:23] <ssi> well what you need to do is know the flat plate area and wetted area for estimating parasitic drag, the airfoil, the desired cruise speed, figure out the Cl and alpha at that cruise speed, then you can calculate induced drag
[10:30:39] <ssi> from that you can get required thrust
[10:30:42] <malcom2073> You're using words... they mean things in english, that I'm sure of
[10:30:56] <ssi> from thrust you can go to the engine documents to find the fuel flow
[10:31:24] <ssi> shit jetcat has an 88lb thrust engine
[10:31:58] <ssi> specific fuel consumption on their bigger engines is around 0.16kg/N
[10:34:07] <DaViruz> rc turbojets usually have pretty crappy efficiency
[10:34:23] <ssi> all turbojets have crappy efficiency at low altitude
[10:34:38] <DaViruz> i'm guessing due to radial compressor
[10:34:55] <ssi> are they still all centrifugal compressors?
[10:34:59] <ssi> an axial flow rc turbojet would be amazing
[10:35:00] <DaViruz> yeah
[10:35:06] <DaViruz> i saw one once
[10:35:19] <DaViruz> seven axial stages i believe
[10:35:22] <DaViruz> heavy as all hell :)
[10:35:46] <ssi> heheh
[10:36:06] <DaViruz> power per engine weight is excellent though
[10:36:13] <ssi> http://www.jetcatusa.com/rc-turbines/turbine-details/spt10_rx_h/
[10:36:17] <ssi> turboprop cricri would be fun too
[10:36:35] <DaViruz> i'm looking to get a wren turboprop for my next serious plane
[10:36:47] <ssi> although that's a 12shp turboprop, and the cricri is designed for 18hp gas engines
[10:36:48] <DaViruz> they are kind of pricey though..
[10:36:50] <ssi> so I dunno how that'd do
[10:37:05] <ssi> you should build a wren turboprop!
[10:37:10] <DaViruz> i should not!
[10:37:12] <ssi> used to could get plans
[10:37:15] <ssi> not sure if they're still available
[10:37:19] <DaViruz> they still offer them
[10:37:24] <DaViruz> i believe they still offer castings too
[10:37:50] <ssi> turbine wheel castings?
[10:37:58] <DaViruz> yeah, and NGV castings
[10:38:09] <ssi> NGV? intake guide vane?
[10:38:15] <DaViruz> nozzle guide vane
[10:38:17] <ssi> ah
[10:38:19] <Wolf_> I’ve always wanted a turbine rc heli :)
[10:38:30] <DaViruz> no intake guide vanes for centrifugal compressors
[10:38:37] <ssi> yeah I guess not
[10:39:02] <DaViruz> maybe they have exit guide vanes though.. but those are made from billet aluminium i think
[10:39:02] <ssi> Wolf_: I want a turbine fullscale heli :)
[10:39:11] <Wolf_> that too :D
[10:39:14] <DaViruz> i don't think they are called exit guide vanes either
[10:39:17] <ssi> here's another thing I'd really like to build:
[10:39:17] <ssi> http://www.helicycle.com
[10:39:30] <ssi> DaViruz: I think they call that the diffuser
[10:39:34] <DaViruz> that's it
[10:40:11] <ssi> aw man helicycle kit used to come with the turbine for $39k
[10:40:16] <ssi> now it's $30k and doesn't come with the turbine
[10:40:34] <DaViruz> hellcycle
[10:42:04] <ssi> We didn't intend to be the one flying the HELICYCLE when it ran into high voltage wires at 110 mph. We were thankful to our Guardian Angel and also to the crash worthy design features of the ship when we walked away unhurt afterwards. The safety feature designed into the HELICYCLE are too numerous to mention here. The video which shows the aftermath of this crash puts them into a far more believable perspective.
[10:42:10] <DaViruz> but re: cricri with rc turboprop, i've been thinking about the same thing
[10:42:10] <ssi> whoa dang
[10:42:20] <ssi> I think I'd rather have a turbojet cricri
[10:42:39] <ssi> but who am I kidding, I'd never be comfortable in the damn thing :P
[10:43:17] <DaViruz> thrust to power ratio seems a little off
[10:43:19] <DaViruz> for that..
[10:43:39] <ssi> how so
[10:44:28] <DaViruz> what can you get out of a large rc turbojet, 200N or so? what's that, about 40 lbs
[10:44:38] <ssi> jetcat's biggest is 88lb
[10:44:42] <DaViruz> oh.
[10:44:44] <ssi> there's two on the cricri
[10:44:49] <ssi> 170lb thrust is a LOT
[10:44:55] <DaViruz> what'd a 18hp prop engine give you?
[10:45:07] <ssi> I did the math on the cherokee once and 150hp spinning a 74x61 prop is like 315lb thrust
[10:45:17] <ssi> I dunno, I'd have to know the prop and do some math
[10:45:41] <DaViruz> oh
[10:45:49] <Sync> ssi: snecma probably has a turbine for you
[10:46:22] <DaViruz> well then there's the fuel usage issue :)
[10:46:29] <ssi> plans just say 27" props
[10:46:33] <ssi> 15hp 6000rpm
[10:46:41] <DaViruz> i'm guessing that turbojet will drink something like a gallon a minute
[10:46:52] <Sync> well, you can probably fill the wings with tanks
[10:46:56] <Sync> with minor redesign :3
[10:47:05] <ssi> the 54lb thrust turbine was 24gph full power
[10:47:07] <ssi> not that horrible
[10:47:16] <DaViruz> my tiny one wants 500cc a minute
[10:47:19] <ssi> 0.16kg/N was the spec sfc
[10:47:24] <DaViruz> hm. 300 even
[10:47:54] <ssi> 300ml/min is only 4.8gph
[10:48:07] <DaViruz> only :(
[10:48:11] <ssi> heheheh
[10:48:19] <DaViruz> for 45N thrust
[10:48:22] <ssi> if it makes you feel any better, my rv can do 135mph on 4.8gph
[10:48:26] <ssi> and 178mph on 8.5gph
[10:48:36] <ssi> at 1800lb gross weight :D :D
[10:48:43] <malcom2073> Woohoo my mcheap steppers shipped
[10:48:51] <ssi> malcom2073: newegg steppers?
[10:48:58] <DaViruz> well my plane is faster at 4.8gph then, but that's with a 1.2m wingspan :)
[10:49:00] <malcom2073> ssi: Walmart, I have a newegg order in too
[10:49:16] <ssi> I ordered some newegg steppers
[10:49:36] <malcom2073> i've heard nothing from the newegg ones since placing the order yesterday morning
[10:50:12] <Wolf_> I got shipping notice for 1 out of 4 orders from yesterday morning
[10:50:19] <ssi> DaViruz: I'm going up to new york the sunday after thanksgiving to go to a concert with a friend that lives up there
[10:50:41] <ssi> and he realized that he'll actually be here in atlanta for thanksgiving, but he's leaving sunday morning to fly home commercial
[10:50:42] <malcom2073> Wolf_: Yard sale tomorrow
[10:50:45] <malcom2073> got pushed back twice due to rain haha
[10:50:54] <Wolf_> oh did it...
[10:51:05] <ssi> he's gonna leave his parents' house at 6am to head to the atlanta airport, and his flight is scheduled to land in white plains at 10:30am
[10:51:17] <ssi> I'm going to leave my house at 6am, walk downstairs and get in the RV, and try to beat him to white plains :D
[10:51:24] <DaViruz> :D
[10:51:25] <ssi> I think he'll beat me, but it's gonna be close
[10:51:26] <malcom2073> ssi Nice
[10:51:36] <ssi> it's 4:30 flight time for me, and I have to stop for fuel
[10:51:38] <ssi> teh fuel stop will kill me
[10:51:43] <ssi> but I'll probably be within an hour of him
[10:51:56] <DaViruz> fill upp the passanger compartment with fuel!
[10:51:56] <ssi> plus his round trip ticket was $350, and I'm estimating $365 in fuel round trip
[10:51:57] <Wolf_> wave when you go past :P I’m near frederick :P
[10:52:00] <ssi> and I have two seats :D
[10:52:10] <ssi> beating the airlines ftw
[10:52:16] <malcom2073> Nice! That's awesome
[10:52:23] <malcom2073> What do you consider your "wear and tear" cost on a trip like that?
[10:52:26] <DaViruz> yeah. i want a plane and a licence.
[10:52:27] <Simonious> Anyone got any hands on experience with the MarkForged yet?
[10:52:29] <ssi> malcom2073: not much
[10:53:07] <ssi> if you want to get technical about it, that's 9 hours on the engine, with a 2000 hour time between overhauls and a ~$25k overhaul cost worst case
[10:53:39] <ssi> so $112 or so in maintenance reserve for the engine
[10:53:40] <malcom2073> so $112
[10:53:44] <malcom2073> Not bad at all
[10:53:45] <ssi> and maybe another $50 in airframe maintenance reserve
[10:53:50] <ssi> but I don't really account it that way
[10:53:54] <DaViruz> $25k :I
[10:53:58] <ssi> and it's an experimental airplane, so it's super cheap to maintain
[10:54:08] <Sync> DaViruz: at worst
[10:54:14] <DaViruz> what's that, replacing every single part on the engine? :)
[10:54:15] <Sync> if you tear it down and nothing is fucked, it is cheaper
[10:54:18] <malcom2073> Heh
[10:54:24] <ssi> Sync: somewhat cheaper. Not a lot cheaper
[10:54:31] <ssi> gotta replace all the cylinders
[10:54:36] <malcom2073> ssi: What airport are you doing a fuel stop at?
[10:54:37] <ssi> they're about $1100 apiece, four of them
[10:54:39] <DaViruz> or is that including labor?
[10:54:40] <ssi> malcom2073: I dunno yet!
[10:54:45] <ssi> DaViruz: that's including labor probably
[10:54:48] <Sync> oh, we measure those here and if they are good to to they go back in
[10:54:49] <malcom2073> Do you decide on the fly, no pun intended?
[10:54:58] <ssi> figure $2500 to have the case and crank inpsected and yellowtagged
[10:55:07] <ssi> new cam and lifters is about $3k
[10:55:13] <ssi> bearings about $1k, gaskets $500
[10:55:16] <Sync> but yeah, 10k in the best case
[10:55:23] <ssi> I could probably do that engine myself for $8-10k
[10:55:35] <ssi> being experimental I don't even need to be licensed to do it
[10:55:40] <ssi> but I likely will be before the end of the year
[10:55:52] <ssi> malcom2073: yea generally... I look for fuel stops that are cheap and convenient to the route
[10:55:59] <ssi> malcom2073: there's a nice fuel stop planner on airnav.com
[10:56:08] <CaptHindsight> so about the same as rebuilding an Audi/VW :)
[10:56:09] <ssi> I think suffolk, va is a good option
[10:56:30] <malcom2073> Nice
[10:56:31] <ssi> CaptHindsight: the parts just cost a LOT MORE
[10:56:45] <ssi> the 200hp engine for my rv7 is way worse
[10:56:56] <ssi> it's an angle valve engine, and the cylinders are not as common, and over twice as much
[10:56:58] <CaptHindsight> ssi: have you been to a VW/Audi dealer :)
[10:57:06] <ssi> so instead of 5k in cylinders, it's like 12k in cylinders
[10:57:14] <ssi> CaptHindsight: um yes... I've owned three new VWs :P
[10:57:25] <DaViruz> i doubt rebuilding a audi/vw engine would set you back 10k, unless it's had extensive damage perhaps
[10:57:30] <ssi> the parts are high, but they're not as high as, say, Hardinge parts :)
[10:58:01] <DaViruz> ..or unless you let the dealer do it, which they proably even won't.
[11:00:28] <SpeedEvil> For 10K, they will copy over all the dings to a new engine
[11:02:53] <Sync> DaViruz: a new engine is around 10k in germany here
[11:03:09] <CaptHindsight> plastic extruder parts or injection molding machine parts are the about the silliest for dealer pricing
[11:03:20] <DaViruz> yeah, something like that here in sweden too.
[11:03:49] <SpeedEvil> One Beeelion dollars.
[11:03:57] <DaViruz> though we usually pay 20-30% more then the german prices on vw/audi parts..
[11:04:44] <DaViruz> ..plus higher tax
[11:05:56] <ssi> quick calculations on what I know about the cricri suggests about 51lb thrust from the props and 15hp piston engines
[11:06:44] <DaViruz> that's not very much
[11:07:31] <DaViruz> one problem with rc turbojets/turboprops could be the 50h suggested service interval..
[11:07:40] <ssi> yeah that's not so good
[11:08:06] <DaViruz> bleeding oil mixed fuel through ball bearings isn't stellar at 200krpm
[11:08:27] <ssi> yeah I suppose not
[11:08:51] <DaViruz> actually i'm not sure how the turboprop gearbox holds up. i belive it's lubricated the same way
[11:09:26] <ssi> I think it has its own oil case
[11:09:47] <ssi> I saw a writeup of a guy buillding a wren 54 turboprop
[11:09:53] <DaViruz> at least for wren, having them change bearings an rebalance isn't that expensive
[11:10:00] <DaViruz> 5bears? :)
[11:10:00] <ssi> he built a turbine from scratch, then he bought another 54 as a gas generator and built the turboprop around it
[11:10:04] <ssi> yea
[11:10:06] <DaViruz> or 4bears or whatever it is
[11:10:17] <ssi> what do they charge to overhaul them?
[11:10:55] <DaViruz> 280 GBP
[11:11:00] <ssi> that's not bad at all
[11:11:07] <DaViruz> 495GBP for turboprops
[11:12:19] <DaViruz> they do mention they've seen engines that's ran for hundreds of hours with not a single problem though. but if i was sitting in the plane i think i'd stick to the 50h :)
[11:12:25] <ssi> yeah
[11:13:17] <DaViruz> mine has some minor FOD on the compressor
[11:35:18] <Akex_> Hy all
[11:35:36] <Akex_> How can i send gcode with pyvcp please
[11:35:50] <Akex_> I must use a python script for do that ?
[11:36:55] <Akex_> Ex a button for prob when it s done, send g54
[11:37:17] <JT-Shop> oh fun go pointers
[11:37:29] <JT-Shop> use mdi
[11:37:41] <Akex_> Yes i know
[11:37:57] <Akex_> But my friend want a button
[11:38:00] <Akex_> .....
[11:38:08] <JT-Shop> ?
[11:38:42] <Akex_> Sorry i dont speak english verry well
[11:38:51] <JT-Shop> no problem
[11:38:54] <JT-Shop> http://linuxcnc.org/docs/html/config/ini-config.html#_halui_section
[11:39:08] <Akex_> I know in mdi section i can do that
[11:39:10] <JT-Shop> connect pyvcp button to mdi command
[11:39:22] <JT-Shop> what is your question?
[11:39:27] <Akex_> But i want add a button for do two line
[11:39:34] <Akex_> In pyvcp
[11:39:44] <Akex_> G38.2 Z
[11:39:44] <JT-Shop> use a subroutine
[11:39:57] <Akex_> G54 z0
[11:40:17] <JT-Shop> http://linuxcnc.org/docs/html/gcode/o-code.html#_calling_files
[11:40:17] <Akex_> Yes connect pyvcp to mdi that it ;)
[11:40:29] <Akex_> Thanks lot of JT-Shop
[11:43:53] <Akex_> (filename myfile.ngc)
[11:43:54] <Akex_> o<myfile> sub
[11:43:54] <Akex_> (code here)
[11:43:54] <Akex_> o<myfile> endsub
[11:43:54] <Akex_> M2
[11:44:16] <Akex_> I add this in xml files or other file ? JT-Shop
[11:44:58] <Akex_> I kneaw is an example file
[11:46:02] <JT-Shop> you can put it where ever the subroutine path is set to http://linuxcnc.org/docs/html/config/ini-config.html#_rs274ngc_section
[11:46:22] <JT-Shop> or for testing just put it in nc_files
[11:46:44] <JT-Shop> be sure to shut down LinuxCNC after adding a file the start back up
[11:47:29] <Akex_> Ok i am don t sure if i all understand, but i will try ;) thank you
[11:48:35] <JT-Shop> do one step at time, get the subroutine to work as expected then add the pyvcp
[11:53:38] <Akex_> Yes
[11:54:00] <Akex_> I see an exemple on linuxcnc forum
[11:54:23] <Akex_> http://www.linuxcnc.org/index.php/english/forum/22-pyvcp/26107-button-to-executes-m-code-with-adjustable-argument
[11:54:40] <Akex_> Where i put the ngc files ?
[11:54:51] <Akex_> In /usr/bin ?
[11:55:15] <Akex_> Or in the folder of machine ?
[11:55:23] <JT-Shop> nc_files if you have not set a subroutine path in the ini
[11:55:59] <Akex_> Ok
[11:58:12] <SpeedEvil> http://imgur.com/gallery/p0qjsCa Meanwhile in russia
[12:00:01] <JT-Shop> that's the way they do that here too
[12:10:17] <zeeshan> hi lucky irc'ers
[12:10:22] <zeeshan> working and ircing :{
[12:10:31] <ssi> lol
[12:11:07] <zeeshan> http://imgur.com/a/u9SIH
[12:11:10] <zeeshan> out of all those parts
[12:11:16] <zeeshan> holy cow the servo drives and spindle motor are worth the most
[12:11:24] <zeeshan> the same spindle drive on ebay is 3000
[12:11:25] <zeeshan> wtf
[12:11:29] <zeeshan> might be overpriced
[12:11:36] <ssi> yeah I have some of that stuff that I intended to sell
[12:11:39] <ssi> but I haven't gotten around to it
[12:11:50] <ssi> the spindle drive and servo drive from the cinci
[12:11:53] <zeeshan> wht control was your fanuc
[12:11:54] <zeeshan> 6t?
[12:12:02] <ssi> acramatic 850sx
[12:12:23] <zeeshan> that sounds too american to be fanuc
[12:12:28] <zeeshan> :P
[12:12:38] <ssi> siemens I think?
[12:12:43] <ssi> but the drives and motors are fanuc
[12:12:59] <zeeshan> ah
[12:13:08] <zeeshan> if i can even get 1800 for that drive
[12:13:12] <zeeshan> that would be sweet
[12:13:13] <ssi> yeah
[12:13:22] <zeeshan> i spent most of the day ripping apart things from the machine
[12:13:23] <zeeshan> i go back sat
[12:13:34] <ssi> oh look at this https://github.com/rene-dev/stmbl
[12:13:35] <zeeshan> removing that top cover is going to be a pain
[12:13:39] <zeeshan> lots of bolts
[12:13:45] <ssi> Sync here showed me that, and I've been talking to the guys that developed it
[12:14:03] <ssi> I have ten pcbs coming, and I'm gonna have to hack on the software some, but it might be really really nice for most of our projects
[12:14:39] <ssi> I need to pick PCW's brain a bit about how I'm gonna integrate with mesa
[12:14:49] <ssi> it supports smartserial in hardware, but the software isn't written yet
[12:16:30] <malcom2073> I love this time of year, my garage is the perfect temperature to work in
[12:16:33] <malcom2073> no heat or AC required
[12:16:35] <ssi> malcom2073: I KNOW
[12:16:42] <ssi> I wish it could stay like this forever :/
[12:17:08] <malcom2073> Yeah
[12:17:18] <zeeshan> ssi u need to finish machine!!
[12:17:25] <malcom2073> I have a 10kw heater I built though, so winter should be fine
[12:17:29] <ssi> zeeshan: I'm hoping these servo drives will get me further down that road!
[12:17:42] <ssi> zeeshan: they autophase and don't require commutation feedback
[12:18:42] <ssi> zeeshan: they do sin/cos interpolation too... might simplify your machine :)
[12:19:04] <Sync> ssi: you can just reverseengineer the smart serial stuff from the sorces :P
[12:19:07] <Sync> +u
[12:19:15] <ssi> and resolvers... I'm contemplating using them to re-do the hardinge, and get rid of the hiak drives and boat anchor 90vdc supply
[12:19:29] <ssi> Sync: you give me too much credit :)
[12:19:58] <ssi> Sync: I got an stmdiscovery board in the mail yesterday
[12:20:16] <Sync> also autophase is only really required once
[12:20:22] <zeeshan> ah
[12:20:29] <zeeshan> well the lathe has dc servos
[12:20:32] <ssi> once per powerup, or once period?
[12:20:34] <zeeshan> according to pcw :P
[12:20:44] <ssi> zeeshan: which lathe, my hardinge?
[12:20:53] <ssi> they are actually dc brush motors
[12:21:03] <ssi> and this drive will do either
[12:21:14] <Sync> once per ever ssi
[12:21:18] <ssi> Sync: ah ok
[12:21:25] <zeeshan> mine
[12:21:30] <Sync> as your resolver/rotor offset will not change
[12:21:37] <Sync> (of if it does things go to shit anyways)
[12:21:41] <zeeshan> sync you spent too much money on connectors :P
[12:21:41] <ssi> Sync: yeah but what about on a machine with incremental encoder?
[12:21:57] <Sync> yes, then you will need to autophase all the time
[12:22:04] <Sync> zeeshan: negative
[12:22:08] <Sync> 10€/pair
[12:22:09] <ssi> by all the time you mean any time you lose absolute angle
[12:22:11] <Sync> with pins/sockets
[12:22:12] <ssi> like at every machine enable
[12:22:19] <Sync> bought out a disfunct race team
[12:22:42] <Sync> nah
[12:22:51] <Sync> with resolvers you get the absolute pos everytime
[12:23:00] <ssi> again, I'm talking about incremental encoders
[12:23:05] <Sync> tru dat
[12:23:20] <Sync> you will need to autophase on every enable
[12:23:25] <ssi> that's fine
[12:23:31] <ssi> how much does it move the motor during autophase?
[12:23:34] <ssi> one electrical rev?
[12:23:53] <Sync> no
[12:23:55] <Sync> it wiggles a bit
[12:23:57] <ssi> ok
[12:23:59] <Sync> you can even adjust that
[12:24:05] <Sync> I think it currently is .5 radian
[12:24:38] <ssi> hm... I wonder how that'll work with linuxcnc... you hit enable, the drive autophases, and then somehow signifies back to linuxcnc that it's enabled
[12:24:48] <ssi> and I need to hold off on actually enabling motmod until all the drives are locked
[12:24:59] <Sync> with resolvers we can even autophase through a brake :D
[12:25:08] <Sync> as the tiny amount of flex in the brake is enough
[12:25:09] <ssi> oh shit the brake
[12:25:13] <ssi> on Z
[12:25:20] <Sync> is not of problem
[12:25:22] <ssi> ok
[12:25:23] <Sync> we can drive brakes
[12:25:51] <ssi> I can't wait to get these built and start testing
[12:25:54] * ssi is excite
[12:26:19] <Sync> do you have a 24V brake or a hv one?
[12:27:57] <ssi> I don't remember
[12:28:02] <ssi> I think it's 120VAC
[12:28:30] <ssi> I can run it through a relay, no big deal
[12:28:32] <Sync> then you will need a relay
[12:29:17] <ssi> actually I think it's hvdc
[12:29:19] <ssi> 100VDC or so
[12:29:44] <Sync> yeah, there is stuff like that
[12:35:56] <ssi> I gotta figure out how I'm gonna do the command stuff over smartserial... the 7i83 is a smartserial remote that does multiple 10V analog command outputs, so that's probabyl a good start
[12:36:08] <ssi> but I REALLY want to figure out how to make the drive act as a smartserial remote encoder counter
[12:38:03] <Sync> yeah, that would be 10/10
[12:38:19] <Sync> or you could just get a second feedback device :D
[12:38:44] <ssi> no thanks
[12:38:50] <Sync> why not?
[12:38:50] <ssi> I'd split the encoder before I did that
[12:38:55] <Sync> glass scales are cheep
[12:39:43] <ssi> not cheap enough, and I don't want to have to install them and cable them
[12:39:56] <ssi> it's a big 20x20x20" vmc, and all the motor cabling is already installed and routed through the frame
[12:41:35] <Sync> yeah, sure
[12:41:40] <Sync> but it would be the easiest
[12:41:51] <ssi> nah buffering the encoder would be way easier
[12:41:58] <ssi> I'd just rather count it in one place and simplify the wiring
[12:42:15] <Sync> well, then you are not getting rid of your thread error
[12:42:29] <ssi> thread error?
[12:42:40] <Sync> lead error in the screw
[12:42:46] <ssi> oh I'm not worried about that
[12:43:03] <ssi> it's all high quality ballscrews, and the machine was plenty accurate enough with the encoders on the motors originally
[12:43:14] <Sync> k
[12:48:44] <ssi> I'm just not sure whether or not what I want to do is feasible, because I haven't seen any evidence of an encoder counter on a smartserial remote
[13:04:39] <malcom2073> Hmm, I need a shorter pinch point bar
[13:05:11] <ganzuul> I need a hacksaw lathe attachement...
[13:05:21] <malcom2073> Erm... why?
[13:05:36] <ganzuul> Parting tool ain't long enough.
[13:05:49] <ganzuul> I could make it longer...
[13:05:51] <malcom2073> Just get a longer parting tool?
[13:05:51] <malcom2073> heh
[13:06:24] <malcom2073> Or waste some material to turn a small section down for parting further in
[13:06:36] <ganzuul> ooh
[13:06:38] <malcom2073> Or pull the stock and bandsaw it?
[13:06:44] <Wolf_> tool post mounted bandsaw :P
[13:06:51] <ganzuul> I have no bandsaw.
[13:06:59] <malcom2073> How do you not have a bandsaw? :P
[13:07:05] <Wolf_> ^
[13:07:16] <Wolf_> even a sorta band
[13:07:18] <ganzuul> I have energy drink concntrate and a hacksaw.
[13:07:19] <malcom2073> Hmm, looking around online it seems for safety reasons, typically people pull large parts and bandsaw them down
[13:07:23] <Wolf_> sorta/port-a
[13:07:29] <malcom2073> then turn off the lathe and hacksaw away! heh
[13:07:54] <ssi> yeah
[13:08:00] <malcom2073> I'd make your next tool you purchase a bandsaw
[13:08:11] <ganzuul> yup...
[13:08:42] <ganzuul> But I got a sudden 1000 euro unexpected expenditure.
[13:08:43] <Wolf_> of all the shop tools, my two portable bandsaws get used the most day to day
[13:09:49] <malcom2073> I love my horizontal bandsaw, I used it long before I had any other machine tools heh
[13:10:01] <malcom2073> I'm thinking of using it to cut this lever bar in half
[13:10:02] <malcom2073> heh
[13:10:29] <ganzuul> However, on Monday I start 5 days of aptitude testing for basic metalworking education.
[13:10:30] <Wolf_> 5” cordless grinder is one of my new favs
[13:10:45] <malcom2073> My sister got me a cordless sawzaw for christmas two years ago, that thing is amazing
[13:10:54] <malcom2073> cordless grinder would be awesome to have too
[13:11:07] <ganzuul> Oooh, could maybe replace a bandsaw ith one of those, right?
[13:11:13] <Wolf_> I went all out and got a brushless one
[13:11:20] <malcom2073> eh, not replace, but certainly as a stopgap until you get a bandsaw
[13:11:27] <ganzuul> mmh
[13:11:37] <Jymmm> cordless grinder is kinda pricy Dewalt $90, no batteries or charger
[13:11:44] <Wolf_> 5” grinder is going to have a 2” doc
[13:12:02] <Wolf_> $90 = cheap junk imo lol
[13:12:17] <Jymmm> Wolf_: dewal?
[13:12:17] <malcom2073> heh
[13:12:18] <ganzuul> I want a brushless sawzall with a cord.
[13:12:28] <Wolf_> but I’m kinda sold on brushless stuff now
[13:12:52] <malcom2073> Brushless is nice, but it won't last the 20 years that brushed stuff does, no electronics ftw
[13:13:27] <ganzuul> It's not just about lasting.
[13:13:28] <Wolf_> yeah, but it is more effective running on li-ion
[13:13:44] <ganzuul> Quieter, and less EFI.
[13:13:45] <malcom2073> Ohyeah for cordless
[13:13:58] <malcom2073> It'll outlast quite a few sets of batteries to be sure
[13:14:16] <t12> https://www.kickstarter.com/projects/1849283018/makerarm-the-first-robotic-arm-that-makes-anything
[13:14:18] <ganzuul> ~EMI
[13:14:19] <t12> will it ever go away
[13:14:20] <t12> make it stop
[13:15:11] <ssi> with kickstarter, the floodgates are open
[13:15:13] <ssi> the new gold rush
[13:15:19] <Wolf_> https://www.milwaukeetool.com/power-tools/cordless/2781-22
[13:17:09] <JT-Shop> I think I need a map of a struct
[13:17:19] <ssi> JT-Shop: what language?
[13:17:39] <JT-Shop> go
[13:17:45] <malcom2073> away
[13:17:57] <JT-Shop> going through the tutorial again to absorb more
[13:18:02] <ssi> what key do you want? string?
[13:18:22] <ssi> and is the struct one that you defined as a named type already?
[13:18:27] <JT-Shop> https://tour.golang.org/moretypes/15
[13:18:53] <JT-Shop> I'm just working this example and it hit me how to store the entities maybe
[13:18:59] <ssi> ah yes
[13:19:21] <JT-Shop> make a struct for arc, line and circle and that should cover it
[13:20:04] <ssi> yeah then you can have an interface that abstracts all the different types of entity, and make your map a map of that interface
[13:20:15] <JT-Shop> yea
[13:20:44] <ssi> wait til you get into channels and goroutines :D
[13:21:05] <ssi> you can set up your dxf parser so when it gets to the end of a valid entity, it takes everything it's read so far and chucks it in a channel and then starts lexing the next entity
[13:21:23] <JT-Shop> cool
[13:21:37] <ssi> then a goroutine is running in parallel consuming that channel, and whenever the raw entity text comes in, it sets about parsing it, creates the entity objects, and chucks them in another channel or datastructure or whatever
[13:21:46] <ssi> you can make it fast as crap that way
[13:23:04] <JT-Shop> channels are a couple of lessons away it seems
[13:24:08] <ssi> go is the easiest language I've learned in a long time
[13:24:21] <ssi> I spent some time with scala the last few years, and scala is INCREDIBLY powerful, but damn is it hard to master
[13:24:48] <JT-Shop> I don't even want to look a that then lol
[13:24:50] <ssi> :)
[13:25:07] <ssi> it's got some stuff that'll tie your brain in knots
[13:25:31] <ssi> it's TYPE SYSTEM is more complicated than a lot of programming languages
[13:34:06] <JT-Shop> I think for a map to work I need a struct that has all the elements that might be found in an arc, line or circle
[13:35:53] <ssi> yeah unless you abstract out a common interface, but you may not have all the knowledge you need to do that just yet :)
[13:35:56] <ssi> I gotta run but I'll be back later
[13:36:05] <JT-Shop> ok
[13:48:59] <aventtini6> hello hello
[13:49:21] <aventtini6> ssi i need to convert the 9v signal from philips to 5v
[13:49:44] <aventtini6> i cant change the scales because the have there place on the machine chassis
[13:49:58] <Tom_itx> voltage divider
[13:50:35] <aventtini6> also the spyke on the philips is 9v
[13:50:43] <aventtini6> or someting like that
[13:54:03] <Tom_itx> http://www.raltron.com/cust/tools/voltage_divider.asp
[14:06:45] <Tom_itx> JT-Shop, what are you working on?
[14:07:15] <Tom_itx> dxf file structure, but what for?
[14:07:35] <Jymmm> taking over the world!
[14:10:13] <JT-Shop> well I have grand ideas to parse the dxf file and spit out G code
[14:12:51] <furrywolf> aren't there programs that do that already?
[14:12:55] <Tom_itx> how's it goin?
[14:13:13] <Tom_itx> furrywolf probably but not written by JT-Shop
[14:13:20] <JT-Shop> lol
[14:13:31] <JT-Shop> just having fun learning golang at the moment
[14:15:29] <Tom_itx> the problem with spitting out gcode from a dxf is Z tool height
[14:15:30] <ganzuul> So a mini-hacksaw as a parting tool on a running lathe might not be incredibly dangerous. The blade comes off if you apply too much pressure.
[14:15:49] <JT-Shop> no problem on a plasma
[14:15:54] <Tom_itx> ahh
[14:15:55] <Tom_itx> true
[14:16:38] <JT-Shop> but adding Z for milling is trivial once you have the path
[14:16:48] <Tom_itx> what do you use to draw the dxf?
[14:17:05] <Tom_itx> JT-Shop, maybe..
[14:17:19] <Tom_itx> you must account for tool offsets etc
[14:17:24] <Tom_itx> corner rounding
[14:17:36] <JT-Shop> on linux I use librecad
[14:17:54] <JT-Shop> naw, just draw the path you want
[14:18:12] <JT-Shop> offset the profile in a few seconds
[14:19:57] * Tom_itx goes to do a brake job
[14:20:25] * JT-Shop should be doing something...
[14:22:33] <ganzuul> https://www.youtube.com/watch?v=qJckchby55E
[15:29:49] <XXCoder> heys
[15:30:02] <MacGalempsy> question about backlash settings
[15:31:09] <MacGalempsy> nevermind, i see it is in machine units
[15:34:33] <JT-Shop> fix the machine...
[15:34:48] <rob_h> costs money
[15:35:03] <JT-Shop> hi rob_h
[15:35:10] <rob_h> Hi there
[15:35:21] <JT-Shop> what's up on that side of the pond?
[15:35:40] <rob_h> not much been bussy feeding machines with metal
[15:35:52] <JT-Shop> nice
[15:35:52] <rob_h> and fixing too it seems latly
[15:35:59] <JT-Shop> making parts is good
[15:36:16] <JT-Shop> I need to build a new blasting cabinet
[15:36:48] <rob_h> just planning how todo the next machine refit , will be the winter project/job
[15:37:58] <MacGalempsy> actually, when I use a backlash of .0003 I still see a .0003 discrepency when I switch directions
[15:38:22] <rob_h> did you shut down and reload i think you need todo that
[15:38:29] <MacGalempsy> I hit reload
[15:38:36] <MacGalempsy> let me try shutting it down
[15:38:38] <rob_h> linuxcnc it self i mean
[15:38:54] <MrSunshine> high lead ballscrew vs rack and pinion ...
[15:38:55] <JT-Shop> reload only reloads the G code
[15:39:01] <MrSunshine> any thoughts ?
[15:39:19] <MrSunshine> i guess ballscrews are not so good at being long
[15:39:20] <rob_h> depends on grade of screw and nut.. and type of rack
[15:39:20] <XXCoder> yea I always restart linuxcnc when I change configuration
[15:42:18] <MacGalempsy> still no change
[15:42:40] <MacGalempsy> oh well, I guess I can deal with 0.0003
[15:43:02] <MacGalempsy> really I just want to get to cutting! lol
[15:44:24] <MacGalempsy> time to put it all back together and throw the 4th axis in
[16:03:56] <Tom_itx> brakes done
[16:04:49] <Jymmm> smog done
[16:05:05] <Tom_itx> were you fixing it?
[16:05:21] <Jymmm> no, just due
[16:05:50] <XXCoder> hmm
[16:06:22] <XXCoder> my router area for drag chain is 25mm, theres one that has width of 35 mm, would 1 cm cause problems?
[16:06:55] <Tom_itx> sounds like you answered your own question
[16:07:24] <XXCoder> huh?
[16:08:01] <Tom_itx> 25mm !- 35mm
[16:08:04] <Tom_itx> !=
[16:08:15] <XXCoder> I think overhang would be fine
[16:08:22] <XXCoder> but not too sure how much would be fine or not
[16:31:47] <XXCoder> decided to go for 35 mm external for X axis chain, and 20 mm external for Y chain
[16:33:14] <XXCoder> hmm whats good 4 wire connectors
[16:33:47] <Deejay> gn8
[16:37:59] <XXCoder> HMMMM
[16:38:00] <XXCoder> http://www.amazon.com/Classic-USB-NES-Controller-PC/dp/B002YVD3KM/ref=sr_1_1?s=videogames&ie=UTF8&qid=1444425245
[16:38:06] <XXCoder> that'd work as pendant lol
[16:38:16] <XXCoder> arrows for X, Y
[16:38:23] <XXCoder> and A and B for z
[16:42:34] <XXCoder> "your facebook is not connected to amazon" BULLSHIT
[16:42:48] <XXCoder> I always see ads for products I recently browsed in amazon
[16:42:55] <XXCoder> always.
[16:43:18] <XXCoder> fgacebook is showing drag chain ad
[16:59:54] <malcom2073> It's not facebook
[16:59:56] <malcom2073> it's google
[17:00:20] <Wolf_> tracking cookies ftw...
[17:00:24] <Wolf_> or something
[17:00:33] * Wolf_ doesn’t see ads...
[17:01:30] <zeeshan> http://i.imgur.com/npNmLAY.jpg
[17:01:31] <zeeshan> he guys
[17:01:35] <zeeshan> wtf is this ?
[17:01:39] <zeeshan> ac spindl;e servo unit?
[17:01:44] <zeeshan> how can an ac motor be a servo
[17:01:48] <malcom2073> If it has an encoder
[17:01:50] <malcom2073> ?
[17:01:51] <zeeshan> is my spindle motor actually a servo?
[17:01:52] <Wolf_> ^
[17:01:55] <zeeshan> or an induction motor?
[17:02:02] <malcom2073> Or it's a dual motor setup
[17:02:05] <malcom2073> one spindle motor, one AC servo
[17:02:09] <zeeshan> no
[17:02:41] <Connor> zeeshan: What is that on?
[17:02:58] <Wolf_> wiring should help give part of that answer...
[17:03:10] <Wolf_> he got some little lathe thingy
[17:03:19] <malcom2073> Tiny little
[17:03:24] <andypugh> three-phase permanent magnet brushless motor
[17:03:44] <zeeshan> http://i.imgur.com/3stpkGd.jpg
[17:03:56] <zeeshan> this gave me the impression it was an induction motor ?
[17:04:08] <XXCoder> malcom2073: I dont enable google servers
[17:04:15] <zeeshan> connor lathe
[17:04:16] <XXCoder> scripts that is
[17:04:16] <andypugh> There is actually no difference between a brushless DC motor (BLDC) and an AC Permanent magnet motor (PMAC)
[17:04:22] <XXCoder> so they cant track me that way
[17:04:36] <zeeshan> fuck maybe i should keep this motor then
[17:04:38] <malcom2073> XXCoder: They don't have to track you via anything in your browser
[17:04:43] <zeeshan> cuse that means i can orient the spindle
[17:04:44] <malcom2073> they track you by your internet footprint
[17:04:57] <XXCoder> malcom2073: it needs script to do so
[17:05:02] <XXCoder> and I dont allow that to run
[17:05:04] <malcom2073> XXCoder: No, it doesn't.
[17:05:05] <Connor> zeeshan: Picture of the whole machine ?
[17:05:06] <andypugh> You can orient the spindle with an AC motor, if you try hard enough.
[17:05:15] <XXCoder> malcom2073: so what magic does google use
[17:05:16] <zeeshan> the prob is
[17:05:18] <malcom2073> There's a LOT of unique information you can get from someone connecting to a website, no scripts required
[17:05:21] <zeeshan> this ac spindle servo unit
[17:05:23] <zeeshan> takes 3 phase in.
[17:05:34] <zeeshan> i wonder if i can derate it
[17:05:38] <zeeshan> and only push 10 hp through the motor
[17:05:40] <zeeshan> instead of 20.
[17:05:48] <andypugh> Try it, it will either work or error-out
[17:05:48] <XXCoder> malcom2073: well it dont have to be google. amazon can sell info to facebook for one
[17:05:49] <zeeshan> cause if it is a pmac
[17:06:00] <zeeshan> then you can just limit the current
[17:06:00] <malcom2073> XXCoder: True, but google is typically the information/advert king
[17:06:02] <zeeshan> at the cost of hp
[17:06:11] <fenn> xxcoder good luck https://panopticlick.eff.org/
[17:06:37] <zeeshan> Connor: http://imgur.com/a/w4VTf
[17:06:56] <XXCoder> fenn: user agent and http accept has info
[17:07:04] <XXCoder> cookies is accepted. rest is "no javascript"
[17:07:04] <Connor> zeeshan: Where the heck are you putting it at? You don't have room in your garage do you?
[17:07:14] <zeeshan> connor shrug
[17:07:18] <malcom2073> Connor: He scrapped his car :/
[17:07:30] <zeeshan> malcom2073: that was the car outside
[17:07:37] <malcom2073> Ohhh heh
[17:08:12] <XXCoder> Connor: zeeshan found how to make inside bigger
[17:08:13] <zeeshan> fuck im glad
[17:08:20] <zeeshan> i looked at this motor drive spec
[17:08:25] <zeeshan> i was ready to scrap this motor
[17:08:39] <zeeshan> fyi my friends
[17:08:42] <zeeshan> most of those covers are unnecessary
[17:08:49] <zeeshan> the actual machine is prolly around 9000lb
[17:08:58] <zeeshan> and only 5.5ft tall
[17:09:03] <zeeshan> at most 6ft.
[17:09:12] <zeeshan> the extra 12" to get to 7 ft is all useless space
[17:09:19] <zeeshan> why they did that, i dont know.
[17:09:24] <fenn> can you pay for the lathe with the proceeds from the extra parts you're getting rid of?
[17:09:26] <zeeshan> just to make it look more beefy.
[17:09:33] <andypugh> People like impressive machines?
[17:09:36] <Connor> how much you spend on it ?
[17:09:41] <zeeshan> connor 32190183202130893210 $
[17:10:00] <zeeshan> its cost me 5500 so far
[17:10:02] <zeeshan> w/ moving and stuff
[17:10:04] <andypugh> That seems slightly overpriced
[17:10:21] <andypugh> (The first number, that is)
[17:10:25] <Connor> He's in Canada, so, probably not..
[17:10:57] <zeeshan> http://i.imgur.com/GaTnnXJ.jpg
[17:11:01] <zeeshan> far away picture of the spindle drive
[17:11:08] <zeeshan> http://i.imgur.com/j5kUc8W.jpg
[17:11:09] <XXCoder> what the fuck??
[17:11:11] <malcom2073> Connor: He's totally in canada too, you know what the rigger let him do? Let him keep it on the truck overnight until he could pull parts off, AND let him borrow the forklift. They're so nice up there :P
[17:11:15] <zeeshan> picture of the servo motor
[17:11:16] <zeeshan> er
[17:11:17] <zeeshan> servo drive
[17:11:26] <XXCoder> amazon suggests "plain preserved fetal pig" from my browsing history
[17:11:36] <zeeshan> andypugh: what would you do?
[17:11:38] <XXCoder> I sure as heck wasnt browsing dead animals
[17:11:39] <zeeshan> i don't wanna fry this drive
[17:11:39] <malcom2073> XXCoder: I wouldn't tell people that....
[17:11:43] <zeeshan> its selling on ebay for 3000
[17:11:51] <zeeshan> if i can replace it something else , would be nice
[17:11:57] <XXCoder> (or live for that matter)
[17:11:59] <malcom2073> zeeshan: Steppers!
[17:12:00] <zeeshan> (something that can take DC in
[17:12:06] <XXCoder> malcom2073: why?
[17:12:10] <malcom2073> Because racecar.
[17:12:12] <zeeshan> that way i can get a custom power supply
[17:12:15] <andypugh> A drive needs to be able to survive loss of one input phase. Fuses blow..
[17:12:18] <XXCoder> malcom2073: huh?
[17:12:19] <XXCoder> lol
[17:13:04] <zeeshan> andypugh: but not run on em all the time! :P
[17:13:37] <Connor> Could you not use a VFD ?
[17:13:46] <zeeshan> no!
[17:13:49] <zeeshan> its not an ac induction motor
[17:13:50] <zeeshan> i thought it was
[17:14:05] <Connor> No.... the VFD into the existing PSU
[17:14:05] <zeeshan> its better, its seems like pmac
[17:14:12] <zeeshan> no
[17:14:17] <zeeshan> they're meant for inductive loads
[17:14:20] <zeeshan> not rc loads
[17:14:33] <andypugh> zeeshan: Have a look at the drive. I suspect that the first stage is a set of rectifiers into DC bus caps. After that point nothing knows that you are on single-phase.
[17:14:52] <zeeshan> will do
[17:15:16] <zeeshan> see my thing is
[17:15:22] <zeeshan> if this drive fries (which it will)
[17:15:25] <zeeshan> eventually
[17:15:27] <zeeshan> what is the replacement cost
[17:15:30] <zeeshan> its 3000 to replace it
[17:15:44] <zeeshan> what if i can find a more universal drive for say 1800
[17:15:52] <zeeshan> it'd be worth not toying with this?
[17:16:07] <zeeshan> fanuc is stupid expensive stuff to replace..
[17:16:52] <andypugh> The only parts that are likely to fry on single-phase are the input rectifier diodes. And even then, only if running on full power. The caps might have a shorter life as ripple is higher with single-phase input.
[17:18:24] <zeeshan> http://www.ebay.com/sch/i.html?_from=R40&_trksid=p2050601.m570.l1313.TR0.TRC0.H0.Xa44l-0001-0094.TRS0&_nkw=a44l-0001-0094&_sacat=0
[17:18:29] <zeeshan> axis amplifiers are reasonably cheap to replace..
[17:22:56] <andypugh> zeeshan: No chance of getting real 3-phase?
[17:23:05] <zeeshan> no
[17:23:08] <zeeshan> not for anothre 2 years
[17:23:35] <Jymmm> what happens in 2yrs?
[17:24:29] <andypugh> How much is a suitable 3-phase converter?
[17:25:28] <zeeshan> around 2000
[17:25:44] <andypugh> I found this one, which might be big enough , though it costs about the same as the spindle drive http://www.motorsandinverters.co.uk/18-5kW-RT-Rotary-Converter-p281.html
[17:25:55] <zeeshan> https://www.americanrotary.com/products/view/ar-pro-series
[17:26:48] <zeeshan> Jymmm: moving to a b igger place
[17:27:26] <zeeshan> andypugh: do you use vault at work
[17:27:51] <andypugh> I don’t. The proper users might.
[17:28:28] <zeeshan> darn :P
[17:29:15] <andypugh> Have you found a single-phase drive suitable for the spindle?
[17:29:34] <andypugh> Typically single-phase stuff only goes to 3kW
[17:29:47] <zeeshan> ac induction yes
[17:29:49] <zeeshan> but not pmac
[17:30:33] <andypugh> Control Techniques Unidrive can drive either. But the single-phase ones only go to 3kW
[17:30:48] <zeeshan> i dont want a servo drive that taakes ac input
[17:30:50] <zeeshan> i want it to take dc
[17:30:55] <zeeshan> that way i can size the power supply for it
[17:31:00] <zeeshan> know what i mean?
[17:31:32] <andypugh> Is there a DC-bus connection for the spindle drive?
[17:31:43] <zeeshan> not that i saw
[17:31:47] <zeeshan> but i didnt get a lot of time to focus on it
[17:31:53] <zeeshan> i think its worth bringing the motor back
[17:31:57] <zeeshan> and keeping it just incase..
[17:32:07] <zeeshan> a servo spindle would be way superior to a ac induction motor
[17:32:15] <andypugh> I think it is quite common to wire the DC busses of mutliple drives together to take advantage of diversity
[17:32:16] <zeeshan> that way i can put live tooling in the turret
[17:32:21] <zeeshan> and do some crazy stuff
[17:33:25] <andypugh> I don’t know if you can run a PMAC from a VFD. I don’t see much reason why not
[17:33:52] <zeeshan> are you making a general comment
[17:33:54] <zeeshan> or thinking im doing that?
[17:33:59] <DaViruz> i have a PMAC on my small drill which i run from a vfd
[17:34:16] <DaViruz> it works well, but i had to tweak the v/f curve a lot
[17:34:20] <DaViruz> ..small mill
[17:34:55] <zeeshan> i wouldnt wanna use a vfd to run it
[17:35:00] <zeeshan> because i want proper positioning! :P
[17:35:16] <zeeshan> now i see why the hell they had a brake caliper on the transmission
[17:35:19] <DaViruz> servo spindle?
[17:35:28] <zeeshan> theres gotta be something to do with indexing the spindle..
[17:35:30] <zeeshan> im really curious now.
[17:35:40] <zeeshan> DaViruz: yes
[17:35:52] <DaViruz> i'd want to keep that intact too
[17:47:34] <Jymmm> zeeshan: Moving on up... to a DEE LUX apartment in the sky ???
[17:57:22] <malcom2073> Wolf_: If you decide to pop in tomorrow, I'm the younger of the two guys with the bright red ford ranger
[17:57:57] <Wolf_> cool, I might, not sure yet tho
[17:59:59] <XXCoder> aw youtube center dont seem to be actively developed anymore
[18:10:29] <Jymmm> no?
[18:13:42] <XXCoder> laqtest is oct 2014
[18:13:49] <XXCoder> latest
[18:32:28] <MacGalempsy> alright. everything homing pretty well
[18:35:01] <MacGalempsy> so the stiffness was due to buildup in the bearings. probably bad grease. a couple shots to wd40 and a few runs back and forth and everything was back to normal
[18:54:10] <MacGalempsy> friday night, everyone is out partying huh?
[18:54:27] <Wolf_> oh yeah
[18:55:16] <MacGalempsy> well it was a good day over here
[18:55:50] <MacGalempsy> got the covers back on the motors. now just need to put the big covers, and door back on
[18:55:56] <MacGalempsy> but that will be tomorrow
[19:01:29] <Tom_itx> zeeshan, does it feel like christmas morning?
[19:07:55] <Sync> zeeshan: looks easy enough to repair yourself
[19:21:27] <Sync> zeeshan: most probably the drive is a servo
[19:26:54] <zeeshan> Tom_itx: kind of :)
[20:20:26] <CaptHindsight> zeeshan: I heard that your rigger helped you hook up the machine, as well as cook you dinner
[21:15:48] <bobo> zeeshan: you might look at "phaseperfect.com" for 1phase - 3 phase , they have a better reverse energy handling ability
[21:19:00] <bobo> phase perfect (a scott T device ) usally has better resale , bad if trying to buy one used - good if trying to sell
[21:22:01] <PetefromTn_> he is planning to go single phase like his other machine and my machine as I understand him. He plans on swapping a smaller motor unless he changed his mind.
[21:22:54] <bobo> while you are at the riggers place , might look for xfmr. 220 to new lathe voltage
[21:24:35] <bobo> Pete think just discoveren the spindle motor is a servo motor . Now more quandry in the game
[21:25:22] <PetefromTn_> I am sure it probably is a servo motor
[21:25:29] <PetefromTn_> but its like 20HP
[21:26:17] <bobo> but it is not our 20 HP
[21:30:48] <bobo> Pete what would you do if there was a 20HP servo on your foot and you had a 10HP induction motor ad on ebay ? think I would try to save me foot
[21:41:00] <bobo> Pete have you thought any more about the servo drive "ssi" is considering ?