#robotics | Logs for 2016-03-13

Back
[00:53:57] <pokmo> hi
[00:54:53] <pokmo> i'm running a simulation of a motor rotating a bracket, which itself holds another part. if i set the motor to 10RPM it can complete a revolution. however, if i set it any lower, e.g., 5RPM, it seems to get stuck
[00:55:48] <pokmo> and the motor torque blows up to more than 5000N/mm. does anyone know why a slow motor speed could lead to lock ups?
[00:58:45] <DagoRed> pokmo: Mot information is needed about the motor.
[00:59:23] <pokmo> DagoRed: i'm just using a simple setup with a constant speed motor
[00:59:30] <DagoRed> For instance, is it a 3-phase motor? Is it a DC motor? Stepper motor? Also a little more information about the application would be nice.
[00:59:37] <pokmo> set at 10RPM and 5PM respectively
[01:00:04] <DagoRed> Is this a brushed or brushless motor?
[01:00:33] <pokmo> DagoRed: i'm doing the simulation in solidworks. i don't think it lets me set it as brushed or brushless
[01:01:47] <DagoRed> Ok... so this information is critical... but knowing that let me ask a few more questions.
[01:02:08] <DagoRed> Is this a known motor model in solid works (like an imported library?)
[01:02:15] <pokmo> DagoRed: do 3d cad typically ask for motor types?
[01:02:29] <pokmo> DagoRed: yeah, i'd say so. it's a builtin function
[01:02:49] <pokmo> i could define properties of the motor, like give it an expression, etc.
[01:03:09] <pokmo> but i'm just choosing the simple, constant speed motor
[01:04:00] <DagoRed> FYI, constant speed motors are more a function of the ESC than they are of the motor itself.
[01:05:33] <DagoRed> But that aside, I can only think that the motor needs a certain amount of rotational momentum to move between the polls to provide enough torque to stay turning.
[01:06:38] <DagoRed> pokmo: remember, motors work by creating a magnetic field in wires which can only produce a field at the time they are charged initially.
[01:06:45] <pokmo> DagoRed: are brushed motors more prone to this?
[01:07:10] <DagoRed> If the motor is moving too slowly, those coils don't stay charged long enough to move the motor to the next pole.
[01:07:44] <DagoRed> Any motor can be subject to this, however I have created this particular problems quit easily with brushed motors.
[01:08:43] <DagoRed> z64555: Oh the joys of writing c++ dynamic libraries without relying upon a proper IDE.
[01:09:03] <pokmo> DagoRed: but in CAD, is the rpm supposed to be the RPM of the motor itself or the output shaft, i.e. including gear reduction?
[01:09:20] <pokmo> or it doesn't matter?
[01:09:27] <DagoRed> I think you answered your question there.
[01:09:30] <z64555> DagoRed: yep.
[01:09:57] <DagoRed> z64555: C++ dynamic libraries that wrap a C dynamic library is SO MUCH FUN!
[01:10:16] <DagoRed> pokmo: depends on how the model is drawn up.
[01:11:10] <DagoRed> pokmo: if it were me, I would be able to state the input parameters to the output parameters of the library which should allow me to make an assumption where the value is being measured.
[01:12:09] <z64555> is this a personal choice, or a requirement?
[01:13:02] <DagoRed> Its my IoT project. I want it that way so when I open source it I'm not requiring anyone to use any specific IDE. Also it makes the makefile MUCH easier to eddit as one see's fit.
[01:13:06] <DagoRed> *edit
[01:14:31] <DagoRed> z64555: One thing I will be posting when I open up the blog and open source the code is the fact that NOBODY online makes it clear that a library can be referenced easily by calling a header file when looking it up. All examples on stack overflow point to using some importation method which gets ugly fast.
[01:15:26] <z64555> hm, depends on the tool, I guess
[01:15:46] <z64555> but then again, I haven't had much luck with .dll's, ever
[01:15:50] <DagoRed> I was trying to figure out when compiling and writing this IDE free how IDE's in several languages made shared library usage so easy by just referencing a header file. Then I realized... shit that's all I need when I create my own. No tricks needed.
[01:16:12] <DagoRed> Oh... I have a fun little example I can fire you way if you want.
[01:16:30] <z64555> sure
[01:16:33] <pokmo> DagoRed: my model looks like this http://imgur.com/a/QdNfi
[01:16:43] <pokmo> where the motor turns the grey ring
[01:16:52] <pokmo> which rotates on its own axis
[01:17:52] <DagoRed> z64555: I'm assuming you're running linux?
[01:18:13] <z64555> windows 10. I'm the black sheep on this network. :P
[01:18:28] <DagoRed> Surprisingly... you're still in the majority.
[01:18:51] <DagoRed> well shit... let me zip this up.
[01:19:13] <DagoRed> z64555: I STRONGLY recommend getting a linux vm at some point.
[01:19:28] <z64555> i've got mingw
[01:19:34] <DagoRed> I prefer arch but debian or fedora would be great as well.
[01:19:39] <z64555> had cigwin for a while, but never used it
[01:19:42] <DagoRed> Oh good! You can still build my example.
[01:19:48] <DagoRed> *cygwin
[01:20:07] <z64555> hm, no, I already uninstalled cygwin
[01:20:35] <DagoRed> mingw will still build this
[01:20:37] <DagoRed> or should
[01:22:35] <DagoRed> https://drive.google.com/file/d/0BwJ35QhLZLVfWjlTYy1hMU1RMFE/view?usp=sharing
[01:22:42] <DagoRed> .info
[01:22:44] <makepi> DagoRed: makeTest.tar.gz - Google Drive- http://j.mp/21p98el
[01:22:54] <DagoRed> z64555: ^
[01:25:35] <z64555> thx
[01:26:59] <DagoRed> pokmo: after looking at the image, there has to be an electro/mechanical reason for why that motor will not turn at 5 rpms. I'm assuming it is because the amount of torque applied in that particular case isn't enough.
[01:27:47] <pokmo> DagoRed: but the motor torque graph shows that it's trying to increase torque linearly to 7000N/mm
[01:27:53] <pokmo> until i stopped the simulation
[01:28:13] <pokmo> at 10RPM, it only needs around 200N/mm
[01:28:29] <DagoRed> Ok... let me rephrase.
[01:28:57] <DagoRed> The torque is higher but the power or rate of application of power is too low to actually turn the motor.
[01:29:56] <DagoRed> Electric motors provide the most torque at 0 RPM. However, that doesn't mean that at the lower speeds that the motor can actually apply that power.
[01:30:00] <pokmo> right. but if one uses a gearbox to reduce gear ratio, is power also reduced?
[01:30:30] <MarkX> evening
[01:34:11] <gopppo> DagoRed: is it? https://qph.is.quoracdn.net/main-qimg-a69447cd5dc3409a047fcc11d1eb950c?convert_to_webp=true
[01:34:24] <gopppo> low RPM gives low power and low torque
[01:37:25] <DagoRed> Ok.... but is that from the solid works model?
[01:38:43] <DagoRed> pokmo/gopppo: It's a homework assignment. In the end I am a person asked a question with little knowledge of a system witha picture of a box. I'm applying physics with possible explanations. Outside of that, I can't do your homework for you.
[01:40:50] <DagoRed> .t
[01:40:50] <makepi> Sun, 13 Mar 2016 02:15:19 EST
[01:40:57] <DagoRed> makepi: reload time
[01:40:58] <makepi> SyntaxError: Non-ASCII character '\x9f' in file /usr/lib/python2.7/lib-dynload/time.so on line 2, but no encoding declared; see http://python.org/dev/peps/pep-0263/ for details (file "/usr/lib/python2.7/lib-dynload/time.so", line 1)
[01:42:48] <MarkX> haha
[01:43:01] <DagoRed> makepi: reload clock
[01:43:02] <makepi> DagoRed: <module 'clock' from '/bot/makepi/modules/clock.pyc'> (version: 2016-03-13 07:16:35)
[01:43:04] <DagoRed> .t
[01:43:04] <makepi> Sun, 13 Mar 2016 03:17:33 EDT
[01:43:06] <DagoRed> boom
[01:44:00] <DagoRed> .woot tech
[01:44:09] * DagoRed pokes the bot
[01:45:32] <makepi> DagoRed: Error capturing woot.com's API results
[01:45:50] <DagoRed> .woot computers
[01:45:53] <makepi> DagoRed: WD My Passport Ultra 2TB External HD for $69.99 - http://j.mp/1V35Xct
[01:46:06] <DagoRed> Well... looks like the API crashed for a moment
[04:14:12] <rue_shop3> todays software is written to recover quickly from crashes
[04:14:38] <rue_shop3> some programs use crashing as a means of memory managment
[04:26:30] <z64555> those programs should be blacklisted, and their programmers persecuted
[04:26:58] <z64555> (context for those who just joined)
[04:26:59] <z64555> 3:48:44 AM - rue_shop3: todays software is written to recover quickly from crashes
[04:27:00] <z64555> 3:49:10 AM - rue_shop3: some programs use crashing as a means of memory managment
[04:27:01] <DagoRed> Wait until those programmers work on autonomous cars
[04:27:13] <rue_shop3> firefox, windows explorer, java
[04:27:17] <DagoRed> .g f35 needs reboot
[04:27:17] <makepi> DagoRed: http://www.theguardian.com/technology/2016/mar/08/radar-glitch-requires-f-35-fighter-jet-pilots-to-turn-it-off-and-on-again
[04:27:21] <DagoRed> .info
[04:27:22] <makepi> DagoRed: Radar glitch requires F-35 fighter jet pilots to turn it off and on again | Technology | The Guardian- http://j.mp/1Mfu3cT
[04:27:26] <z64555> lol.
[04:27:55] <rue_shop3> I'm serious
[04:28:10] <DagoRed> I've seen it.
[04:28:43] <rue_shop3> its easier to make the program restart after it crashes than to manage memory properly
[04:29:04] <Snert> Hey a firmware update for my F-35, no biggee :)
[04:29:20] <DagoRed> Better yet, use threading on the plugins so as they fail they restart without the main application knowing.
[04:29:30] <rue_shop3> look how long it took to pin the windows 95 bug
[04:29:40] <DagoRed> Snert: that's a work around. Not an update.
[04:29:50] <DagoRed> 1998?
[04:30:22] <rue_shop3> 49.7 days
[04:30:47] <DagoRed> Well I'm glad I fixed my Windows 7 bug on this laptop.
[04:30:56] <DagoRed> I installed arch before the first logon.
[04:30:56] <rue_shop3> https://support.microsoft.com/en-us/kb/216641
[04:31:08] <DagoRed> .info
[04:31:09] <makepi> DagoRed: [The title is empty.]- http://j.mp/1V3gJ2C
[04:31:43] <DagoRed> interesting
[04:46:09] <rue_shop3> I installed linux on a laptop and the motherboard failed
[04:46:28] <z64555> the freedom was too much for it, I guess
[04:46:40] <rue_shop3> the replacement failed immediatly after getting it back
[04:46:49] <z64555> lmao.
[04:46:56] <z64555> power supply.
[04:46:57] <rue_shop3> the 2nd motherboard they installed windows on it for me
[04:47:06] <rue_shop3> I think windows scans and maps out bad memory
[04:47:16] <rue_shop3> so I have to do a proper memory scan on it before I do anything
[04:47:25] <rue_shop3> LENOVO LAPTOP
[04:47:59] <z64555> yeah, those are fun to break
[04:48:27] <z64555> I have a second T60 who's screen went dead after a week or two
[04:48:31] <z64555> *second-hand
[04:48:41] <z64555> backlight driver
[05:00:53] <rue_shop3> paid $700 for it, hasn't been usefull for 1 consecutive hour yet
[05:01:22] <z64555> lol. joy.
[05:02:14] <z64555> hm, looks like mingw's gcc hasn't been updated to support c++14 yet
[05:02:18] * z64555 tweaks things
[05:04:49] <z64555> er what. "no such file or directory"
[05:07:47] <rue_shop3> ok I fixed the rolloer I overbored
[05:09:15] <rue_shop3> all I need is good weather
[05:09:21] <rue_shop3> will we get any of that this year?
[05:10:06] <rue_shop3> tommorow I can get the glue and maybe finish the disc sander
[05:13:12] <rue_shop3> well its 1:46 am
[05:13:21] <rue_shop3> I hate to waste a good night, but I need sleep
[05:14:45] <z64555> same, mingw decided it didn't want to play with me tonight
[05:36:42] <helpme8> What are some robots which can help to do housework?
[05:48:15] <deshipu> fasw: roomba, dishwasher, washing machine
[05:48:54] <fasw> deshipu: can roomba clean the floor if there are lots of obstructions?
[05:48:58] <deshipu> fasw: food processor, microwave oven
[05:49:20] <fasw> deshipu: any robots who can cook?
[05:49:32] <deshipu> fasw: yes, there are pizza vending machines
[05:50:07] <fasw> deshipu: i plan not to cook everyday. don't think it's healthy to eat pizzas everydady
[05:50:11] <fasw> everyday
[05:50:34] <deshipu> there are some beer-making machines and bread-making ones too
[05:50:57] <fasw> deshipu: not interested in beer. not healthy. i don't mind eating bread everyday.
[05:51:00] <deshipu> although they are not fully autoatic -- you need to put the ingredients in them
[05:51:10] <deshipu> automatic*
[05:51:19] <veverak> lol
[05:51:21] <deshipu> there are cookie-making machines in the cookie factories
[05:51:29] <veverak> fasw: afaik beer is as healthy as white bread
[05:51:30] <veverak> :)
[05:51:36] <deshipu> also sausage-making machines
[05:51:55] <fasw> I have an idea. are there robots which can make sandwiches everyday? i'll simply feed different ingredients everyday. should be healthy that way
[05:52:08] <veverak> well
[05:52:15] <veverak> if you want healthy you need vegetables
[05:52:17] <veverak> and vegetables
[05:52:21] <veverak> and vegetables
[05:52:23] <deshipu> some robots for preparing meat too: https://www.youtube.com/watch?v=MZIv6WtSF9I
[05:52:28] <veverak> aaaaaaaaaaaaaaan mix that with vegetables
[05:52:29] <fasw> steve jobs was a vegetarian. he died relatively young
[05:52:30] <veverak> :)
[05:52:39] <veverak> wat?
[05:52:52] <veverak> aaaand how is that relevant?
[05:52:54] <deshipu> fasw: yes, there are machines that make sandwitches: https://www.youtube.com/watch?v=aPTwpLIpDWE
[05:53:03] <veverak> I said you need to eat tons of vegetables, not became vegetarian
[05:53:16] <veverak> also jobs got cancer as far as I remember
[05:53:21] <fasw> deshipu: hey. that's not for home
[05:53:38] <fasw> i need consumer robots, not industrial robots
[05:53:55] <fasw> basically, i need a robot who can be a maid at home.
[05:54:02] <deshipu> what's the difference?
[05:54:07] <deshipu> a robot is a robot
[05:54:13] <fasw> i can't afford an industrial robot
[05:54:27] <fasw> i'm not rich. live in small house. no space anyway
[05:55:10] <deshipu> oh well, the cheapest way to make sandwitches in small quantities is to pay a human to make them for you
[05:55:46] <deshipu> or to buy the sandwitches made by those robots from a shop
[05:55:48] <fasw> deshipu: yes. that's right. stupid me. just wanna use robots out of interest. I love technology
[05:56:24] <fasw> deshipu: hmm ... i wonder if there're online service that deliver food regularly to home everyday
[05:56:36] <deshipu> yes, lots
[05:57:07] <deshipu> there are even dieting services that will prepare special diet for you and deliver that every day
[05:57:14] <fasw> do u think one can stay at home for 3 months without going out by relying on online services? Suppose i'm a mad scientist who wants to work at home all day and not go out
[05:57:20] <deshipu> yes
[05:57:25] <deshipu> I did that
[05:57:35] <fasw> deshipu: amazing! u're my idol!!
[05:57:47] <deshipu> well, my mailbox is outside, so I had to get out to check it
[05:57:58] <fasw> deshipu: may i ask what was the outcome? what earthshaking invention did u make?
[05:58:21] <deshipu> fasw: yes, I made a discovery
[05:58:42] <deshipu> fasw: that a human needs contact with other humans from time to time, or he goes insane
[05:58:43] <fasw> deshipu: can u talk about it? is it patend?
[05:58:47] <fasw> patented?
[05:58:57] <deshipu> there may be some prior art
[05:59:05] <fasw> deshipu: u can irc. i'm here :)
[05:59:16] <deshipu> how do I know you are human?
[05:59:42] <fasw> do i talk like a robot? u're almost insulting me now. I'm a human
[05:59:53] <fasw> robots can't be insulted. Humans can!!
[06:00:00] <deshipu> you could be an FBI agent pretending to be a human
[06:00:01] <fasw> do i sound like human now?
[06:00:21] <fasw> FBI are humans anyway.
[06:00:27] <deshipu> are you sure?
[06:00:51] <fasw> besides, why should FBI catch robotics hobbyist? those are people who will change the world, for the better, not criminals
[06:01:27] <deshipu> certain institutions, which are doing very well right now, consider any change to be unfavorable
[06:01:30] <fasw> anyway, one can always find a woman at home. no problem. no need to go to crowds
[06:01:40] <deshipu> because then they might not be doing so well anymore
[06:02:59] <veverak> deshipu: " human needs contact with other humans from time to time, or he goes insane"
[06:03:07] <veverak> I found out that 24h alone is max limit for me
[06:04:06] <deshipu> veverak: I can do 4-5 weeks
[11:57:58] <flyback> https://www.youtube.com/watch?feature=player_detailpage&v=nmUp67HXgu4#t=146
[11:58:00] <flyback> best weapon ever
[11:58:04] <flyback> *PORK* you!
[11:58:05] <flyback> *PORK* you!
[14:13:02] <rue_bed> ok, I have to buy pvc pipe and contact cement
[14:14:18] <theBear> i guess a mans gotta do what a mans gotta do.... tbh i didn't guess, i think i heard it in an old movie perhaps <wink>
[14:14:35] <rue_bed> flyback, its too bad he didn't know how to operate that thing properly
[14:15:44] <rue_bed> I better get out of bed, half the day is gone
[14:15:50] <rue_bed> I have 9.5 hours left
[14:15:58] <rue_bed> tick, tick, tick
[14:16:10] <SpeedEvil> rue_bed: do you mean contact sement or PCV solvent?
[14:16:25] <rue_bed> contact cement, different project
[14:16:39] <rue_bed> the pvc is to get an air line from the front to back of the house
[14:17:03] <rue_bed> the cement is to glue the sandpaper on the disk sander and put up some strip lights
[14:18:31] <rue_bed> anyone know anything that thins out silicone sealant?
[14:18:58] <theBear> wowee, you do 19 hour days ? you gotta sleep harder man, or you'll end up as loose between the ears as me, and you don't want that !
[14:19:26] <rue_bed> :)
[14:20:22] <theBear> umm, one of the "common" old white/turp/meth kinda spirits certainly works as a mild solvent for "wiping" it in traditional silicone caulking kinda situations, but i never remember which... depending what/howmuch you need the silicone aimed at molding/potting kinda applications is (comes with?) much thinner for pour-ey-ness
[14:20:30] <theBear> hard to find at remotely sensible prices tho
[14:20:54] <theBear> while we at it, what is the airline doing/for ?
[14:22:55] * flyback punches theBear 42 times for his bday
[14:25:23] <theBear> aww, that's sweet, but 42 ? your birthday a fortnight after my own eh ? unbelievable how many people got them super-close to me that i never noticed/remembered before
[14:25:49] <theBear> and if not, i can always give yer 7 back
[14:25:56] * theBear is very accomodating
[14:43:05] <rue_house> tgetting late, I need to start lunch and try to eat breakfast before its done
[14:44:33] <rue_house> general blowdown after I move the sand blaster
[14:45:21] <rue_house> I'm gonna go work on food
[14:45:26] <rue_house> http://paste.debian.net/414869/
[14:45:42] <rue_house> if anyone wants to help out with some programming, given the above fn, write the lower one
[15:04:34] <rue_house> so the order changes
[15:04:42] <rue_house> you realloc then move elements
[15:04:48] <deshipu> rue_house: I don't think you'd appreciate our unoptimized code
[15:05:23] <rue_house> I'm prolly gonna rewrite this 4x before its done
[15:05:33] <rue_house> I'v not even put in proper return values yet
[15:06:03] <deshipu> ah the relaxed world of hobby programming :)
[15:06:30] <rue_house> well yea
[15:06:37] <rue_house> arg, its raining
[15:07:05] <rue_house> please, all summer remind me, I vow to do welding EVERY day that its not raining
[15:07:14] <rue_house> I dont care what
[15:07:46] <rue_house> maybe the sand blasting booth should go in the walkinable area of the crwlspace
[15:09:36] <rue_house> meaning the bandsaw and the garbage-can-taking-out robot need to go somewhere
[15:10:20] <rue_house> ok rulers, contact cement and 1/2" pvc pipe
[15:10:49] <rue_house> pait, I should paint the sandblasting booth if its gonna be all in-view
[15:11:01] <rue_house> what is a good colour for a sand blasting booth?
[15:11:13] <rue_house> black and red?
[15:11:21] <rue_house> black and deep blue
[15:11:29] <rue_house> yellow and black?
[15:11:36] <DagoRed> Black and red
[15:11:42] <rue_house> ok
[15:13:26] <rue_house> the shop must have 20 stainless rulers and I cant find two in thre
[15:13:38] <rue_house> *has NOT reached saturation yet!*
[15:13:46] <rue_house> today I will inject 10 more
[15:14:10] <rue_house> at somepoint there is just one whereever you need it
[15:14:23] <rue_house> it took about 60 pencils to saturate the shop
[15:14:35] <rue_house> about 20 felt pens
[15:17:57] <rue_house> I dont really know how many screwdrivers there aare in the shop, but I know when they all turn up its a zoo
[15:19:25] <rue_house> I have a new linkage deisgn for the mecha fingers, I need to try it out
[15:19:52] <rue_house> DagoRed, I think there are only about 6 humans left
[15:20:07] <DagoRed> In the channel?
[15:20:13] <rue_house> inthe world
[15:20:28] <DagoRed> Lol
[15:20:36] <DagoRed> You are crazy. There is more than that.
[15:20:57] <rue_house> you cant prove it, I cant.
[15:21:02] <DagoRed> Granted... I'm on the east coast in the US. I think if there was less we would be better off.
[15:24:59] <rue_house> http://paste.debian.net/414885
[15:25:05] <rue_house> see anything obvious?
[15:25:25] <rue_house> obviously missing syntax hilighting! :)
[15:26:34] <rue_house> ok I have to go shopping
[15:26:43] <rue_house> wait, no, I have to get dressed first
[16:11:15] * z64555 might be a human
[16:21:13] <SpeedEvil> Dissection will tell us.
[16:23:21] <theBear> orright, i'll hold, you cut
[16:23:39] <theBear> i mean, i can't think of any alternatives
[16:53:08] <rue_shop3> @#$%@$&@#$% this isn't contact cement, its contact cement thinner
[16:53:12] <rue_shop3> !#$%&@$%@#!@#$%
[16:54:33] <rue_shop3> guess I'll go back in a few hours
[16:54:36] <rue_shop3> arg
[16:55:13] <theBear> wtf ?!?!!? if you can manage the same re: silicone you woulda just accidentally obtained the impossible <grin>
[16:56:10] <rue_shop3> there are gonna be 90km/hr winds tonight, I have to get the pullcord back on my genorator
[16:56:16] <rue_shop3> and get the water out of the gas
[16:57:33] <theBear> sissy ! i gonna be in 40c sun in a few short hours
[17:14:30] <flyback> bday was friday
[17:15:08] <theBear> nice, i was maybe a couple monday back, er, maybe even 3 now
[17:15:19] <flyback> how old
[17:17:08] <theBear> heh, 35, which sounds like an age i would think of someone being kinda old if they said it to me, and i noticed just a couple days ago that it's more than one or two grey hairs in the old ponytail area from what i can see in the mirror, tho i spose i saw that coming, probly why i stopped paying attention sometime ago :)
[17:17:43] <theBear> i ain't worried, just surprised someone so very immature and awesome could still be so very that way after all that time to get better :)
[17:20:06] <flyback> so far all I got is more rot
[17:20:15] <flyback> I was hoping for a heart attack or stroke
[17:20:20] <flyback> as a gift
[17:21:24] <theBear> heh, you 7 years ahead of me, and my parts ain't aging slower as time passes, no sir
[17:21:38] <theBear> so ya know, don't bank on winning the race quite yet ;-]
[17:24:51] <flyback> I wanted to crash and burn decades ago dude
[17:24:54] <flyback> nothing has changed
[17:25:19] <flyback> when you wake up every day feeling like someone took play dough, rolled it in broken glass then jammed it up your ass
[17:25:26] <flyback> life doesn't kinda have the charm it used to
[17:26:12] <flyback> https://www.youtube.com/watch?v=6QMiz5a_ikA <--- welcome to hell bitch
[17:26:36] <rue_house> I'M OUT OF STARTER CORD
[17:27:13] <SpeedEvil> We can rebuild him!
[17:27:22] * SpeedEvil orders bits from hobbyking to fix theBear.
[17:27:37] <rue_house> flyback, find me videos of good robotic humanoid hands
[17:27:44] <theBear> you got whipper-snipper 'blade'-cord surely
[17:28:23] <flyback> rue_house, why
[17:28:47] <flyback> did you seen this
[17:28:48] <flyback> https://www.youtube.com/watch?v=Z93Qp69pIWw
[17:28:57] <flyback> 3D PRINTING OWNS YOUR "CANUCK"
[17:29:04] * flyback ATTACHES A JATO UNIT TO rue_house
[17:30:18] <flyback> rue_house, did you see the 3d printers that produce sand molds
[17:30:23] <flyback> FUCKING EPIC
[17:30:28] <flyback> ford can't buy them fast enough
[17:31:44] <SpeedEvil> I saw another interesting one I think from ford
[17:31:53] <SpeedEvil> Take a sheet of metal.
[17:32:07] <SpeedEvil> Now, imagine a massive press pushing a door-form into that sheet.
[17:32:39] <SpeedEvil> Now, remove the massive press, and instead wherever the massive press contacts the sheet first - outline that area with a tiny english wheel like setup to make a contour.
[17:32:47] <SpeedEvil> repeat until you have the final form
[17:33:19] <SpeedEvil> so you have a little bender going round and round to form a complex shape from sheet
[17:35:15] <SpeedEvil> English wheels are awesome
[17:41:56] <theBear> aha, the old phoenix connectors, everyone seen 'em at some stage, noone knows where to get them, at any stage
[17:42:23] <theBear> wtf ? that's not the channel i saw when i glanced away mid-typery
[17:42:28] <theBear> excuse me
[17:44:55] <z64555> speaking of benders, I need to make a jig to bend a brass rod into a flattened loop for an antenna I've put off
[17:45:33] <z64555> originally thought I could make due with a vise and a pipe as a form, but that didn't turn out well
[17:46:08] <SpeedEvil> hit it with a hammer more
[17:56:37] <z64555> can't do that with brass rod. not only will it deform the profile, but it'll also make it more brittle
[17:56:55] <z64555> so, when you do a bend, you need to do it in one smooth continous op
[17:58:55] <z64555> I might have a bore bit big enough to make a hole for the pipe, and I can use a lag bolt for the anvil pin
[17:59:06] * z64555 know that isn't the term
[18:01:23] <SpeedEvil> can't you simply anneal it?
[18:11:49] <z64555> nope
[18:12:15] <z64555> don't have an oven/furnace/forge that I can anneal the brass in
[18:12:37] <rue_shop3> no oven?
[18:12:49] <rue_shop3> are you in australlia?
[18:13:05] <SpeedEvil> z64555: propane torch
[18:13:11] <SpeedEvil> it doesn't need to be very hot
[18:13:18] <SpeedEvil> from memory, only ~300C
[18:15:34] <SpeedEvil> What diameter of rod?
[18:19:41] <z64555> 1/8th inch
[18:20:00] <z64555> which is.. 2mm? 3mm?
[18:20:56] <z64555> 3mm
[18:21:16] <z64555> and yeah, I've used a propane torch but it ended up shattering
[18:21:24] <SpeedEvil> Is this rod or pipe?
[18:21:29] <z64555> rod
[18:21:47] <SpeedEvil> I have no idea what you did, other than perhaps vastly overheated it
[18:22:06] <SpeedEvil> Brass 1/8" rod should be quite bendable by hand.
[18:24:05] <rue_house> shattering!?
[18:24:14] <rue_house> did you cool it with water?
[18:24:17] <z64555> nope
[18:24:48] <rue_house> broke or shattered
[18:25:01] <rue_house> beaking is two peices, shattering is lots of fragments
[18:27:13] <z64555> broke, then
[18:27:57] <z64555> applied heat after the bend, allowed to cool, then tested it and it snapped
[18:32:28] <anniepoo> use a toaster oven or home oven to anneal it
[18:33:10] <z64555> hottest it can get is 400F?
[18:33:58] <z64555> to anneal it, it needs to be around 500F
[18:34:05] <theBear> heh, why would anyone need to bake their toaster, ridiculous !
[18:34:47] <z64555> theBear: It might've originally called a toasting oven, or toaster/oven combination
[18:34:53] <z64555> *been called
[18:35:29] <z64555> it does a fine job of making garlic bread. :)
[18:36:44] <anniepoo> you can also do it with a torch - youtube surely has videos
[18:36:51] <theBear> you know i just bein' silly again, tho surprisingly to many crazy foreigners noone here had any idea they even existed unless they seen 'em in some foreign film (lol "foreign film") and heard the word used to refer to 'em, until very recent years
[18:37:04] <myself> toaster/oven :P
[18:37:59] <theBear> lol, sif a torch can get anything hot, crazy foreigners, with their flashlights and their errm gas bottle nozzley handle bits (herm, i felt like that was gonna finish a lot stronger than it did, bummer)
[18:38:36] <myself> An oven with a self-clean cycle will hit about 900F/500C or slightly more, but it's supposed to have a door interlock that keeps it from opening at peak temp
[18:38:56] <z64555> nah, I'm going to stick with cold working for this little project. I just need the one loop for now
[18:39:50] <anniepoo> we anneal steel with a toaster oven.
[18:40:45] <z64555> which kind of steel
[18:41:21] <anniepoo> last thing we did was an old file
[18:41:38] <z64555> I mean, I could hack the toaster oven so it could get to a hotter temperature, but I don't really want to since I use it for cooking
[18:42:20] <anniepoo> what kind of torch do you have?
[18:42:22] * z64555 grumbles
[18:42:24] <z64555> propane
[18:42:38] <anniepoo> is it big enough for the job?
[18:42:41] <z64555> also got a mapp torch, but that's not much help
[18:43:19] <myself> Bending some pliers helped me get into a tricky spot last week: https://slack-files.com/T04P3H7E8-F0QL89TD5-1b68012606
[18:43:19] <z64555> no. I'd have to sit there and wave the torch around. which I don't have enough patience to do so
[18:43:22] <myself> yay propane
[18:45:22] <anniepoo> perhaps make a video of yourself doing it, then we can look and see what might be wrong
[18:46:53] <rue_shop3> its official, my genoraotor now employs bailing wire to help hold it togethor
[18:47:18] <anniepoo> lol
[18:47:26] <anniepoo> does it have duck tape on it?
[18:47:32] <theBear> dare i suggest, if you capable of modicating such an appliance, you really should be capable of also making some mechanism (for example, a switch,) that can easily flip between mod and original, assuming you haven't changed too much in the physical dept, kinda hard to flip a switch to un-cutout a massive hole in the side of a metal panel for example
[18:48:08] <theBear> z64555, perhaps if we provided some "classic rock" you'd feel more capable of waving the torch around for a period ?
[18:49:48] <anniepoo> you might be heat sinking it?
[18:53:53] <z64555> anniepoo: probably the vise was acting like one
[18:54:24] <anniepoo> ok, so hold the rod with something less heat conductive
[18:54:45] <z64555> nope, burnt my hand too easily. lol
[18:55:07] <anniepoo> Z - well, don't hang onto it with your hand!
[18:55:24] <z64555> I had welder's gloves one! :P
[18:55:37] <anniepoo> vise grips, attached to far end
[18:55:56] <z64555> still doing the cold-work method :p
[18:56:17] <anniepoo> some scraps of leather holding it in vise
[18:56:43] <z64555> theBear: It's ill advised to cook in ovens used for industrial purposes. toxic chemicals and all that
[18:58:59] <rue_shop3> I think its cast brass
[18:59:09] <rue_shop3> if so, you cannot shape it
[18:59:16] <theBear> oh i know, but i wouldn't be the one eating outta it <grin> and also wasn't paying too much attention in this channel, probly more the last bit than the first bit
[18:59:51] <z64555> :)
[19:04:11] <veverak> hmm
[19:04:14] <veverak> anybody got a time ?
[19:04:20] * veverak got maybe board prototype
[19:04:25] <veverak> not sure if ti's sane though
[19:04:26] <veverak> http://veverak.org/~squirrel/laptop/sc/Screenshot%20from%202016-03-14%2000-35-17.png
[19:07:02] <anniepoo> yes, we have a toaster oven we only use for industrial stuff
[19:07:10] <anniepoo> OK, I admit, I once made pizza in it
[19:09:13] <anniepoo> anybody want to do an 'hour'?
[19:09:35] <anniepoo> oops, sorry, wrong channel
[19:09:50] <theBear> aww, i was gonna say yes but demand a pizza as compensation
[19:10:12] <theBear> which is what grownups seem to say instead of pay
[19:10:22] <theBear> crazy fools
[19:13:30] <myself> veverak: If those slots are for a strap, I'd worry about how thin the material on the left one is -- it looks like there's not much strength left.
[19:13:46] <veverak> hmm
[19:13:47] <veverak> true
[19:13:55] <veverak> https://github.com/Schpin/schpin-chassis/blob/master/tote/tote_pcbs.stl
[19:15:14] <myself> are the FTDI pin holes on *your* pro-minis offset tfrom the grid that way? Some knockoffs vary that spacing.
[19:15:46] <veverak> should be
[19:17:20] <myself> just to confirm, SW1 and P13 intend to be cross-wired like that, pin 1 to pin 2, not pin 1 to pin 1?
[19:17:48] <veverak> yeah
[19:17:54] <myself> if it's a switch it shouldn't much matter, just struck me as visually odd
[19:17:55] <veverak> SW1 will be switch
[19:17:55] <myself> ok
[19:18:56] <myself> If screws are going through the big holes, P12 and P13 might be close enough to mechanically interfere with the heads/nuts/whatever
[19:19:29] <veverak> not screws
[19:19:31] <veverak> servo headers
[19:20:09] <myself> is that why the holes near P13 are slightly slanted?
[19:20:34] <myself> actually they're all slightly slanted, just those more pronounced.
[19:20:48] <veverak> well, yeah, a bit
[19:20:52] <veverak> the basic shape is in mm
[19:20:54] <veverak> grid is inches
[19:21:14] <veverak> myself: http://tote.readthedocs.org/en/latest/_images/IMG_20150811_105400.jpg
[19:21:19] <veverak> same idea as here
[19:21:33] <myself> oh I got it, okay
[19:21:57] <veverak> the holes on the left are for raspberry pi
[19:22:02] <veverak> which should be mounted on top of it
[19:23:02] <veverak> but, maybe the holes for rpi are too close to hole for servo header on right side
[19:23:34] <myself> Somewhere you've got a little extra space, say, just right of tilt2, give yourself a few more 5v/gnd holes so you can add some capacitance on the power rail when things get flaky.
[19:24:13] <myself> cuz servos need lots of current, and that noise will get everywhere. An extra 470uF goes a long way.
[19:24:24] <veverak> yeah
[19:24:26] <veverak> forgot about that
[19:25:03] <myself> (and if possible, some extra holes so you can lay the cap down and ziptie it to the board rather than relying on glue to stabilize it.)
[19:25:32] <veverak> point is
[19:25:38] <veverak> that I wanted to put battery right on top of it
[19:25:47] <veverak> (reason why are most of the headers right angled)
[19:26:05] <veverak> and under it are servos, have to position the cap with care :)
[19:26:18] <myself> ah neat. Battery wires still have resistance but keeping it nice and short is helpful :)
[19:26:31] <veverak> more like size problems :D
[19:26:40] <veverak> http://veverak.org/~squirrel/laptop/scad/beta2.png
[19:27:07] <myself> oh I see
[19:27:56] <myself> other side of the board then :) holes work from both sides, luckily
[19:28:02] <veverak> yeah
[19:28:04] <veverak> but there are servos
[19:28:17] <veverak> but, if I will be able to add the cap somewhere in the center of the board it should be ok
[19:28:22] <rue_shop3> whats a batton anyhow
[19:28:23] <myself> that sounds like the title of a nerd-horror short story
[19:28:30] <myself> But There Are Servos
[19:28:31] <myself> chapter 1
[19:28:34] <veverak> :D
[19:43:46] <rue_shop3> damn, if I only had some 3/8" aluminum plate
[19:50:47] <veverak> myself: http://veverak.org/~squirrel/laptop/sc/Screenshot%20from%202016-03-14%2001-24-59.png
[19:53:36] <myself> veverak: what order do you solder things in? If that's hanging off the bottom, but the pro mini is on top, how do you reach the leads for one or the other? (Or is the pro mini plugged into sockets? I didn't see their stack-height accounted for in the 3d model)
[19:53:51] <veverak> yeah
[19:53:54] <veverak> noticed it doo
[19:53:57] <veverak> going to play a bit with it
[19:57:13] <veverak> http://veverak.org/~squirrel/laptop/sc/Screenshot%20from%202016-03-14%2001-31-32.png
[19:57:18] <veverak> if I assert that that CP won't be so big
[19:57:43] <veverak> and that having header contants under cable to antoher header contacts (P12 and i2c)
[19:57:46] <veverak> it should be OK now
[19:59:24] <veverak> oh, damn me, I suppose that footprint for cp is too big
[20:04:06] <myself> well, it's an idea anyway. I've had no end of trouble with noisy 5v when running servos and logic from the same supply, so whatever you can do to make it robust against that will serve you well
[20:04:19] <veverak> yeah
[20:08:03] <veverak> http://veverak.org/~squirrel/laptop/sc/Screenshot%20from%202016-03-14%2001-42-21.png
[20:08:05] <veverak> aaaaand gn
[20:08:06] <veverak> :)
[20:09:17] <myself> okay, now I'm confused, those are between Gnd and...?
[20:09:37] <veverak> line for pvoering arduino
[20:09:49] <myself> ohh, pro mini's internal vcc, got it.
[20:09:51] <veverak> myself: I have jumper between general 5V line and arduino power
[20:10:24] <myself> thaaaat's what that connector is for, okay
[20:10:29] <myself> goodnight! :)
[20:58:43] <anonnumberanon> The wixel breakout bord is a pretty nice package.
[21:00:38] <myself> shame about the RF performance of the wixel itself being ass.
[21:00:44] <myself> I could get 30 feet out of it in the ping demo.
[21:01:04] <myself> could barely*
[21:03:07] <z64555> hm. think the antenna may be to blame
[21:05:56] <anonnumberanon> ah ok thats not very good.
[21:06:20] <anonnumberanon> i should test for range with my nrf24l01s
[21:07:04] <anonnumberanon> however that would be enough for combat robot (stays on the ring for 3 minutes)
[21:09:45] <z64555> microwave antennas are something in the magic realm. lol
[21:10:16] <z64555> I've seen similar ones to that, but something about that one seems off
[23:39:49] <DagoRed> I hate networking houses. 20 connections down and still another 48 to go.
[23:40:48] <Jak_o_Shadows> Bloody ethernet wall socket things are expensive
[23:42:12] <myself> That's a lot of jacks!
[23:42:16] <myself> </kungpow>
[23:50:58] <DagoRed> 6 boxes of cat6e for my cousins new house.
[23:51:24] <DagoRed> We have even installed the fiber yet. I'm not looking forward to heading back that way tomorrow.
[23:55:21] <z64555> must be a rather large house
[23:55:33] <z64555> or is there multiple jacks in each room
[23:56:21] <DagoRed> Well.. the office is getting 16 connections.
[23:56:40] <DagoRed> We have 2 servers that have somewhere around 400 to 600 TB of storage.
[23:56:55] <DagoRed> 2 other smaller servers for whatever reason.
[23:57:13] <DagoRed> Full home theatre setup in the family room that has all the wires run throughout the house.
[23:58:47] <DagoRed> After this house is done... then I can finally host my new blog on my IoT project then.