#robotics Logs

Jun 13 2014

00:52 rue_more hmmm
00:54 MrCurious hmmm
00:55 rue_more maybe I should build an XP machine
00:58 rue_more http://www.openhantek.org/
00:58 rue_more oh hey, its possable to use it with linux
00:59 rue_more ooo 2012, it will NOT compile for any new versions of X
01:00 rue_more it uses QT, which means that it would have not worked even a year later
01:00 rue_more as linQT changes drastically and often
01:19 GargantuaSauce 10 years ago that was true
01:19 GargantuaSauce now it is not
01:19 GargantuaSauce that app is made for qt4 so built it with qt4, and it will work
01:20 rue_bed I'd bet against it
01:20 GargantuaSauce how much?
01:20 rue_bed I'v NEVER had anything sucessfully compile against anything written more than 6 months difference
01:21 rue_bed they will have changed a method in a non-backwards compatible way
01:21 rue_bed they all do that
01:21 rue_bed not even freaking ncurses is backwards compatible
01:22 rue_bed not even mallic
01:22 rue_bed malloc
01:22 GargantuaSauce are you on drugs
01:22 rue_bed no, malloc changed so you have to specify the pointer type
01:22 rue_bed I cant remember what ncurses changed,
01:23 rue_bed point being, you have to modify code to work with the new versions of hte libraries
01:23 GargantuaSauce i literally just built it
01:23 rue_bed because of the ncurses change, a library for conio on linux nolonger works
01:24 GargantuaSauce i just built the application you linked to
01:24 GargantuaSauce with zero effort
01:25 rue_bed huh
01:25 rue_bed from 2012?
01:25 GargantuaSauce qt does not break their api
01:25 MrCurious rue_bed: ty, cancled amazon one, ordering aliexpress one
01:25 GargantuaSauce they have not done that for YEARS.
01:26 rue_bed MrCurious, heh, ok
01:26 rue_bed GargantuaSauce, maybe I'm just unlucky
01:26 rue_bed MrCurious, tell me how it goes!
01:26 rue_bed I need a dso for servo tuning
01:26 GargantuaSauce there are definitely some applications that bitrot but generalizing that to all applications that use a MAJOR gui library is just ridiculous
01:30 GargantuaSauce also i still have no idea what you're talking about for malloc
01:30 GargantuaSauce did you switch to a nonstandard libc or something??
01:31 GargantuaSauce oh i bet you're talking about the fact that c++ doesn't allow you to assign a void* to another pointer type
01:31 GargantuaSauce having to cast that has absolutely nothing to do with the api
01:48 MrCurious https://www.youtube.com/watch?v=mZqWw-xdy9I
01:49 MrCurious ignore the 2girls1cup soundtracck... try not to flash back
02:13 GargantuaSauce i will not restrain my erectile response for the likes of you
03:02 steve__ I'm planning on building an autonomous quadrotor, and wanted to know if anybody had any tips for the robotics newbie, especially concerning anything that relates to minimizing cost.
03:05 Hukka I've heard that developing anything flying isn't going to be cheap, because so many attempts end up hitting the ground
03:05 Hukka Even when following some kind of guide, like working with arducopter
03:07 steve__ as in crashing?
03:13 Triffid_Hunter Stryker: hobbyking is your friend. make sure to always have lots of spare propellers
03:13 Triffid_Hunter Stryker: when you're tuning the PID, tie the quad down so it can't hurt itself, but allow enough movement that you can see if the loops are grossly out
03:18 Stryker I was thinking of doing some 3d-printed props. These would be made out of layers of melted ABS. Would that be strong enough? Where could I start for CAD prop representations?
03:21 Triffid_Hunter Stryker: I reckon PLA would be better.. in my experience it's stronger, and its higher hardness than ABS should be advantageous
03:22 Triffid_Hunter its susceptibility to heat may be a big enough problem to thwart those advantages though
03:39 Stryker Triffid_Hunter: but ABS would surely do the job, right?
03:40 Triffid_Hunter Stryker: yeah should do, there's a bunch of folk in #reprap who'd probably be able to point you at half a dozen blogs
03:47 Stryker Triffid_Hunter: noted!
04:13 Stryker thanks, Triffid_Hunter, you have helped me much
04:13 Triffid_Hunter Stryker: you're welcome :)
04:13 Triffid_Hunter Stryker: check out ardupilot, paparazzi and similar projects while you're at it
04:37 SquirrelCZECH hmm
04:38 SquirrelCZECH do you thing is possible to build "magnetic brakes" for longboard?
04:38 SquirrelCZECH (slowing the wheels down with magnet)
04:39 Hukka Triffid_Hunter: What's your experience in optimal blade length in quads for cutting triffids?
04:40 Triffid_Hunter Hukka: one big blade for primary lift, 3 small ones for control, inverted configuration ;)
04:42 Hukka Iwonder of you could set them up so that they automatically go around the fences with gps...
04:42 Hukka And after a week or so, when the weeds learn it, change the patrol routes
04:43 Triffid_Hunter Hukka: gps + IMU perhaps, gps alone doesn't update fast enough or give enough precision
04:44 Triffid_Hunter SquirrelCZECH: attach a motor. short the motor out
05:03 SquirrelCZECH Triffid_Hunter: something like that :)
06:44 SquirrelCZECH hmmm
06:44 SquirrelCZECH http://www.teamxray.com/rx8/images/feature_07.jpg
06:45 SquirrelCZECH do you see the carbon plates mounted to parts which hold the wheels?
06:45 SquirrelCZECH they it got aerodynamic purpose
06:46 SquirrelCZECH and maybe because my aerodynamic knowledge is poor .... WHAT?
06:46 SquirrelCZECH :D
08:33 rue_bed (:(A))
10:39 password2 :(A)
15:47 cokecherry hi there
15:48 SlaveToTheSauce hi
15:48 cokecherry anyone over here knows how to use GAZEBO simulator?
15:48 cokecherry hello slavetothesauce!
15:48 cokecherry how are you?
15:49 SlaveToTheSauce fine
15:49 SlaveToTheSauce and no i am not familiar with gazebo
15:50 cokecherry where are you from?
15:50 cokecherry what do you do?
15:50 SlaveToTheSauce atlantic canada, i write software
15:51 cokecherry i see
15:51 cokecherry nice
15:51 cokecherry I am from USA
15:51 cokecherry and I am a masters student
15:51 cokecherry and I am required to simulate a 9DOF robotic arm in a simulator called gazebo
15:51 DagoRed cokecherry: masters in mechanical, electrical, or computer?
15:51 cokecherry Electrical engg
15:52 DagoRed Nice! I did my undergrad in EE, then masters in AerE
15:52 cokecherry Oh Aeronautical?
15:52 DagoRed For robotics I just used matlab for the simulations.
15:52 DagoRed Aerospace.
15:52 cokecherry i see
15:52 cokecherry where did u do ur masters?
15:52 DagoRed Same as my undergrad, Iowa State.
15:53 cokecherry nice
15:53 cokecherry well matlab is way easier
15:53 cokecherry but this is a bit complex robotics stuff
15:53 cokecherry so,what do u do now dagored?
15:55 DagoRed Software engineer for a manufacturing company. My previous job was doing flight controls for quad copters :)
15:55 DagoRed My last job was my dream job... but terrible management and over ambitious without doing proper research.
15:56 cokecherry thats great
15:56 cokecherry it should've been really cool to work with drones!!!
15:56 DagoRed Kinda, it's a pain in the ass.
15:57 DagoRed List to rue_more when it comes to jobs. Have a job you don't mind doing but don't make your hobby your job. Tis massive suckage.
15:57 DagoRed So now I write software and contribute to Arch Linux ARM.
15:57 cokecherry i see
15:58 cokecherry why dont you try SpaceX?
15:58 DagoRed hmm?
15:58 DagoRed Why?
15:58 cokecherry spaceX seems to have lots of openings
15:58 TELunus DagoRed: Since it sound's like you've done some work in the area, any idea what some good companies to work for are if I want to design robots?
15:58 cokecherry TELnus
15:59 cokecherry i too have the same question
15:59 TELunus I've just graduated from Mech Eng, in a Mechatronics option.
15:59 cokecherry thats awesome
15:59 TELunus Thanks.
15:59 cokecherry i did my undergrad in mechatronics engineering
15:59 TELunus Neat.
16:00 TELunus Where?
16:00 cokecherry I am doing my masters at George Mason University
16:00 DagoRed TELunus: Kuuka are the kings, US Robotics ain't bad either. I've never worked for either mind you.
16:01 TELunus Cool, thanks. I'm already aware of Kuka, but I'll ad US Robotics to my list to apply at.
16:01 cokecherry @DagoRed:Well im quite concerned if I would ever get a job
16:01 cokecherry are there many companies out there?
16:01 DagoRed I wanted to go for mechatronics, I ended up doing EE, working as a CprE for my internships designing hard drive read channels, then going to grad school studying avionics and research Non-Destructive Evaluation of materials.
16:02 TELunus cokecherry: where did you do you undergrad?
16:02 DagoRed cokecherry: You will get a job, you won't work in your field however. Do as much embedded work as you can and learn linux if you haven't already. Linux developers are the future.
16:02 cokecherry Oh! thanks
16:03 cokecherry I did my undergrad back in india
16:03 cokecherry I am pretty much interested in realtime systems
16:04 TELunus So, I just googled US Robotics. It looks like they're a network solutions company?
16:04 cokecherry this seems to be a nice chatroom
16:05 DagoRed It's pretty awesome all the time.
16:06 cokecherry there seems to be a lot of people in the room
16:06 cokecherry but why aren't many of them active?
16:06 cokecherry Gazebo Simulator Anyone???
16:07 Skwint hello?
16:07 adam789654123 i pop in now and then
16:07 adam789654123 but i dont have anything too interesting to say now, probably
16:07 adam789654123 ;)
16:07 Skwint linux developers are the future?
16:07 cokecherry I see
16:08 Skwint I mean, I use it, but I also use windows and mac
16:08 Skwint and ... I'd like to see justification for that statement
16:08 cokecherry well adam lets make it interesting
16:08 adam789654123 i like linux, i also think there are other operating systems that ive seen, that look interesting
16:08 adam789654123 but i use linux
16:08 TELunus Skwint, I think he's thinking of all the computers people don't sit at. Like rounters, servers,etc.
16:09 cokecherry yup
16:09 Skwint I can imagine a lot of the robots in the near future running a linux derivative
16:09 TELunus Wouldn't be surprised if printers have Linux computers embeded these days.
16:09 Skwint quite possibly android, gods help us
16:09 cokecherry when it comes to embedded systems,Linux seems to be a really good RTOS solution
16:10 TELunus Technically, I'm pretty sure Linux isn't an RTOS.
16:10 Skwint there is a real time variant
16:10 Skwint I thik
16:10 cokecherry well yeah maybe but there are lots of distributions which are like RTOS
16:11 cokecherry i mean you can modify linux however you want
16:11 cokecherry even ps4/ps4 uses linux
16:11 cokecherry GAZEBO anyone?
16:12 DagoRed Skwint: linux in industrial applications is just taking off, embedded devices are pushing for linux more and more. The reason why I say it's the future is because usage is going up in designs and the number of developers isn't rising nearly as fast.
16:12 cokecherry Absolutely true!
16:12 Skwint a lot of the current generation of developers are .net drag and drop artists
16:12 DagoRed There are real time kernel extensions for the kernel, and there are computers that sell real time kernels.
16:13 cokecherry oh god I really want to stay in here but i need to find someone who knows how to use this simulator!
16:13 DagoRed A lot of developers are from India and only use windows. It's sad....
16:13 Skwint stay here too
16:13 Skwint I work with a bunch of guys who almost exclusively develop by using a mac to ssh onto a linux server
16:13 TELunus cokecherry: one of the great things about IRC is that you can go somewhere else AND stay here.
16:13 Skwint which is just weird
16:14 DagoRed that's what I did in school. I do that at home from time to time too.
16:14 Skwint I do it when there's a good reason to work in such an awkward way ...
16:15 Skwint but not as a matter of course
16:15 TELunus Is it ssh, or mac, that you find awkward?
16:15 cokecherry cool, do any of you know other chatrooms for robotics
16:15 DagoRed I don't find it awkward.
16:16 Skwint it is ssh
16:16 DagoRed cokecherry: not really, but I'm sure you will find some that revolve around some company or some software project.
16:16 goRed use's putty on his windows computer to code at home on his saber
16:16 DagoRed .g saber lite newark
16:16 Skwint yeah, this seems to be it for robots ... you could try the societyofrobots.com website for links
16:17 DagoRed .g saber lite newark
16:17 makepi DagoRed: http://www.newark.com/freescale-semiconductor/mcimx6q-sl/i-mx6-hdmi-lvds-rj45-sabre-lite/dp/05W6138
16:17 DagoRed that's my main computer at home ^
16:17 DagoRed .weather telford, pa
16:17 makepi DagoRed: Telford, PA: Scattered Clouds, 72.2 F (22.3 C), 29.75(+), Feels Like: 72.2 F (22.3 C), Humidity 90%, WindCalm - Last Updated on June 13, 4:48 PM EDT http://goo.gl/pGJzQd
16:18 Skwint .weather harrogate, uk
16:18 makepi Skwint: Harrogate, United Kingdom: Overcast, 62.9 F (17.2 C), 30.24(0), Feels Like: 62.9 F (17.2 C), Humidity 84%, WindFrom the WNW at 1.0 MPH Gusting to 3.0 MPH - Last Updated on June 13, 10:00 PM BST http://goo.gl/BU6fmW
16:18 Skwint lovely and warm!
16:18 DagoRed I need to add a space after wind....
16:18 goRed
16:19 Skwint I find I can make space anywhere when I have wind
16:19 TELunus cokecherry: this might not be as real time as IRC, but you could try http://answers.gazebosim.org/questions/
16:19 DagoRed makepi: reload wunderground
16:19 makepi DagoRed: <module 'wunderground' from '/bot/phenny/modules/wunderground.py'> (version: 2014-06-13 21:01:23)
16:20 cokecherry @telunus:thanks
16:20 cokecherry i had tried it already
16:20 cokecherry i cant find much documentation on it
16:21 cokecherry and its really a pain in the ass
16:21 DagoRed cokecherry: get used to it.
16:24 cokecherry Ha ha will sure do
16:28 DagoRed fyi... code generators are awesome.
16:28 DagoRed I wrote a code generator in python that reads froma table design in excel that spits out the code I need in c#
16:28 DagoRed :0
16:28 DagoRed :)