#robotics Logs

May 22 2013

00:00 GuShH some gpio magic in between with a micro.
00:00 GargantuaSauce oh, yeah
00:00 GuShH I'll need micros on every slave anyway
00:00 GuShH long term project anyway
00:01 ShH wonders if an affordable "xbee" ex
00:01 GuShH I still don't see how they're cost effective, as they say
00:03 GargantuaSauce it's maker-market trash<
00:04 GuShH maker-arduino-dave trash
00:04 GargantuaSauce has less functionality than those nordic chips
00:04 GargantuaSauce ya
00:04 GuShH were they not in the market before all of that crap?
00:05 GargantuaSauce came at about the same time as the first arduino i think
00:05 GuShH some things never die :(
00:45 MrCurious now i need to source a 2.5 to 3" diameter plastic egg half. like those leggs panty house used to come in back in pre-historic times
00:45 MrCurious to be a dome to cover my gps module
00:46 GargantuaSauce isnt this an indoor navigating robot?
00:46 MrCurious beats me.
00:46 GargantuaSauce gps is not going to be super useful
00:47 MrCurious no reason it cant be outdoors
00:47 GargantuaSauce wait we might have already had this conversation
00:47 MrCurious so far inside, i have a 14 or 29 sat lock
00:47 GargantuaSauce those omniwheels are not going to like the great outdoors :V
00:47 MrCurious patio deck?
00:47 GargantuaSauce yeah i mean the accuracy simply isnt good enough compared to the scale of obstacles
00:48 MrCurious it will have secondary systems
00:48 MrCurious been pondering adding 4 legs to it to make it omni + crab
00:48 GargantuaSauce they are going to have to be some hefty legs :|
00:48 MrCurious then again, at campus, the sidewalks are nice and smooth, level, flat
00:48 MrCurious with nice big paved areas
00:50 MrCurious GargantuaSauce: remember, its for training me. point was to saddle it with as much sensor goo as i could afford
00:51 GargantuaSauce just making sure you werent relying on it
00:51 MrCurious so i had a platform to experiment with. the software is the true goal. the robot is just a manifestation of my feeble thinking setting me off on a long expensive project i could have solved with a check for a smaller amount
00:51 GargantuaSauce this is all sounding very familiar
00:51 MrCurious if i am relying on this bot to save my life, i am very boned
00:51 MrCurious i am often in repeats
00:52 MrCurious but the dome bit is new
00:52 GargantuaSauce no i mean you just described my projects :)
00:52 MrCurious oh!
00:52 MrCurious i have a 1/3 done cnc and a 1/3 done plastic extruder
00:53 MrCurious projects are so fun to work on, until you can see the light at the end of the tunnel, then they turn into yard work and become avoided
00:53 GargantuaSauce i was sensible enough to get a reprap kit i guess....cartesian is hard to get right
00:53 MrCurious wonder if thats why rue is workin gon a lawn bot...
00:53 GargantuaSauce yup
00:53 MrCurious i prefer to think of the projects as making modern ships-in-bottle's
00:53 rgantuaSauce has had an infuriatingly unproductive 10 or so
00:54 MrCurious guessing you are on the down swing of your manic cycle
00:54 MrCurious i think i am on the upswing of a new manic cycle
00:54 MrCurious loving the clarity i have today
00:55 GargantuaSauce my duty cycle is really low lately :(
00:55 MrCurious you may need a recharge...
00:55 MrCurious travel or booze or something else. its different for everyone
00:55 GargantuaSauce i took a week off work and didnt do dickall
00:56 GargantuaSauce going to korea for 7 weeks very soon
00:56 MrCurious that sounds fun
00:56 MrCurious love the kimche
00:56 MrCurious and the bluegogi
00:56 MrCurious both of which i cant spell
00:56 GargantuaSauce ya the food rules
00:57 MrCurious i like indian better
00:57 MrCurious wish i had the recipee for the fish and egg pancakes i had at a korean friends wedding
00:57 MrCurious sounds bad, but was amazingly tasty
00:57 GargantuaSauce indian indian or british indian?
00:57 MrCurious hot spicy punjab indian
00:57 MrCurious though i am english by birth
00:58 MrCurious i love a offensively hot vindaloo
00:58 GargantuaSauce i've only had it 'white person spicy'
00:58 MrCurious especially if its so hot i surrender after 2 bites. that means it will be amazing after mellowing in the fridge overnight
00:58 MrCurious thats easy
00:58 MrCurious piss off teh server, then ask for hot
00:59 MrCurious one work outing, we had a large work group. at a thai place, the orders started being taken, and teh first to order asked for spice 7 out of 10
00:59 MrCurious nobody went under it
00:59 MrCurious as it rolled around
00:59 MrCurious then it got to the Chinese girl.. she upped it to 8
01:00 MrCurious fun lunch.. looking at all my coworkers sweating, suffering and trying to choke it down and make it look yummy
01:02 theBear pfft ! white people are sissies !
01:02 theBear note to self: i hate whites
01:03 MrCurious the FOB indians i roll with refuse to get it as hot as i do, and only sampled my dish of choice once
01:04 MrCurious auntie g even blew one of them shit saying look at him, he is eating like a proper indian, why aren't you (in hindi)
01:04 MrCurious was hilarious
01:04 MrCurious which reminds me...
01:05 theBear special award winning burger place just around the corner has a "red eyes runny nose" burger, and a mk2 version of it... pretty special... i'm no sissy with these things, but it's certainly approaching the limits of comfortable/enjoyable and getting close to "i can take it, but i only eat them to show off to sissies" territory
01:05 MrCurious i hear spock screams KAHN in the new trek.
01:05 theBear lol re: auntie
01:05 theBear friggin awesome !
01:05 MrCurious i wish he would stop making star trek's and go fuckup the starwars universe for a while...
01:06 MrCurious if he did that, he would be able to claim to be the only person to crap on every sci fi fan world round
01:06 MrCurious i am still pissed about blowing up vulcan and breaking teh ST universe
01:06 theBear lol, totally, and he's got enough sense of humour that he'd probably like that... maybe you should write to him
01:07 MrCurious what, and thank him for making the first trek episode of my life that i had no desire to watch
01:07 MrCurious i think he should remake hg wells, the time machine, now with twice the time traveling paradoxes!
01:10 MrCurious wow. CNN has Gupta and Cooper in front of a blue screen showing the tornado damage, like they are there. they are even dressed in wind blazers
01:12 theBear haha ! the neighbors woulda heard that laugh
01:18 MrCurious re the Oklahoma tornado... "Note the collision of a strong cold and dry air mass with a warm moist air mass was the trigger for this event, “global warming” had nothing to do with it.
01:19 Curious wonders what would cause a global warming tornado.. cold and hot air meet
01:19 theBear global warming could make air warm :)
01:20 GargantuaSauce it snowed here this weekend
01:20 GargantuaSauce i was not amused
01:20 MrCurious sounds canadian
01:20 GargantuaSauce yup
02:16 MrCurious how can i be so tired, but my legs be so awake
02:58 theBear MrCurious, heh, usually legs go to sleep when the rest is awake
05:28 RifRaf finally got me 10 dof sensors, only took about 3 months
05:30 RifRaf been too busy with this thing though http://imagebin.org/258548
05:30 RifRaf almost ready to start moving motors
05:33 Triffid_Hunter RifRaf: looks like delusr kitted you out in technicolor ;)
05:38 RifRaf well i am using a few bits from the spare bits he gave me, i left the actual ones at his place :)
05:39 RifRaf just the red bits are meant to be yellow, but is still tri colour yep
05:40 RifRaf making an X tensioner at monent
05:40 RifRaf can't find m4 washers :/
05:42 Triffid_Hunter use M5
05:42 theBear oooh pretty colours
05:43 theBear oooh, pretty V gears
05:43 RifRaf herringbone theBear :)
05:43 theBear mmm, sensible name
05:44 theBear i'm familiar with various-fish-bone milking shed setups if that helps
05:44 theBear what's the grey stuff doing the couplings ?
05:44 RifRaf yep made sence to me cause i just though fish skeleton
05:44 RifRaf the outside of some electrical cable :)
05:45 theBear heh, i suppose not everyone has fished, err, ever
05:45 RifRaf all i could find today, but a decent fit
05:45 theBear RifRaf, ahh, nobbad... looked rubbery, i was worried about backlash, for want of a better term
05:45 RifRaf yes with heat may not be good, but should be as good as the plastic clear tube i have seen
05:46 theBear herm.... what does the motor on the right mounted on blue do/attach to ?
05:47 RifRaf the drive the X axis. like left and right
05:47 RifRaf or you mean the extruder motor?
05:47 theBear is there a hidden screw or belt or something ?
05:47 RifRaf the belt is getting put on now
05:47 RifRaf i needed some advise and got it just before
05:47 theBear ahh, that'd explain why i can't see it :)
05:47 theBear advice
05:47 RifRaf thanks :)
05:47 theBear heh sorry, too used to doing it for rue
05:48 RifRaf well thats likely where i picked it up
05:48 theBear he gets so many words munged i feel a need 'cos otherwise one day soon i won't understand anything he writes anymore :)
05:49 RifRaf heh
05:49 RifRaf rues world
05:49 RifRaf biulding a cnc machine with so many zipties is odd
05:50 RifRaf i think i am gonna remake a few parts
05:51 eBear imagines jewsharp (boing boing) music and rue rolling down a dusty road in a big old
05:51 theBear rif knows what i'm talking about
05:51 RifRaf lol
05:51 theBear meh, all the ones i spotted so far are in places that they should be fine
05:52 theBear those brothers were pure gold, all goodies haircuts and tiny tiny shorts :)
05:55 RifRaf furry freak brothers?
05:55 theBear https://www.youtube.com/watch?v=0D8QZPr403M wrong song/show intro, but it'll give you foreigners a taste of who i talkin about, pfft, and apparently remind rue
05:55 theBear balls ! rif not rue, sorry
05:56 theBear heh, those brothers were cool too tho
05:57 rue_shop3 the chair or doom should have a cupholder...
05:58 theBear a what ? oh, a beer holder :)
05:58 rue_shop3 heh
05:58 rue_shop3 I put on brackets for a foot rest
05:58 rue_shop3 do that one later...
05:59 rue_shop3 I also need all-terrain wheels for the shop floor
05:59 theBear hehe, where do you plan on the floor rolling to ?
05:59 rue_shop3 :P
06:00 rue_shop3 I was thinking of modding the chair of doom with powered wheels and a joystick
06:00 rue_shop3 drive it around the shop
06:00 theBear don't do that, that's the first step down the slippery road to becoming a fat lazy american !
06:01 rue_shop3 hah, your right, ok
06:01 ocei3ko Anyone here in #perl?
06:01 e_shop3 me chec
06:01 theBear on the other hand, it'd be acceptable if it could leave the workshop and go all terrain :)
06:01 rue_shop3 I'm annoyed nobody makes a wireless usb hub
06:02 rue_shop3 I could plug everything into one on the chair
06:02 theBear huh ? for wireless-usb ? you err, need a hub for that ?
06:02 theBear oh, a wireless usb-hub
06:02 rue_shop3 a usb hub, thats wireless
06:02 theBear well, kinda wireless, apart from all the wires you'd plug in :)
06:02 rue_shop3 your computer, there, a hub over here
06:02 theBear there's a bear in there, and a chair as well
06:02 theBear wait, that's here
06:03 rue_shop3 I suppose I can put a hub on the chair, and just run one wire
06:03 theBear people with games, and stories to tell
06:03 theBear open wide, come inside, it's play school
06:05 rue_shop3 hmm overhauling my library for operating an array of stepper motors is getting interesting
06:18 RifRaf theBear, the invisable belt appears http://imagebin.org/258550
06:19 RifRaf tensioner working too
06:19 theBear abracadabra !
06:20 theBear ooh, nice little tensioner
06:21 rue_shop3 aha, I'm on a terminal to a remote computer, thats why this serial program isn't working
06:22 RifRaf rue_shop3, are you using kermit?
06:22 rue_shop3 nope, ssh
06:22 theBear hehe that old trick
06:24 rue_shop3 hmm
06:24 rue_shop3 I'd hoped that 115200 baud could step a motor faster...
06:24 rue_shop3 oh, the printf
07:18 rue_shop3 the function for making sure a serial ports data is fully written has a minimum timeframe that screws up the max transmit rate
07:18 theBear aha !
07:19 Tom_itx what code you been workin on lately?
07:19 theBear who me ? ummm, i'm not sure there's an answer for that question
07:20 Tom_itx naw, rue_shop3's had his head down with his eyes all bugged out staring at the screen too much lately
07:20 theBear i think i designed a nice diodeless active pfc frontend in the other channel earler, but that dude whos name is a jumble of letters doesn't seem convinced :)
07:20 rue_shop3 its linux side serial code for talking to the avr thats running the stepper motors
07:21 Tom_itx stuck on not using linuxcnc i see
07:21 rue_shop3 no, I'm not gonna use linuxcnc to temporarily run my robotic arm
07:21 theBear hehe, you know rue, he likes to make stuff, himself :)
07:22 theBear aww c'mon, you could have it constantly drawing imaginary objects in the air
07:22 Tom_itx seems every little bit and byte keep him from seeing the final outcome
07:23 rue_shop3 I'll use linuxcnc if I'm making acnc machine
07:23 rue_shop3 :)
07:23 theBear he does seem to have more useful things to do than me, but i enjoy electronics and programming and stuff, and the more time i spend doing that, the less mischief i get into :)
07:23 rue_shop3 I'm not gonna use it for this arm
07:23 Tom_itx might give you practice learning how it works though
07:24 rue_shop3 I really dont ahve time for all that now
07:24 Tom_itx theBear! you never get into mischief!!
07:25 Tom_itx rue_shop3, you must be burning up vacation time..
07:25 rue_shop3 yup, making good progress too
07:25 theBear practically, if i haven't ever done some technical aspect of a project/experiment before, i tend to do it myself, but after that i'll reuse the work or use existing stuff... plus i do like exxisting stuff that makes awesome possible, ie. i'm never likely to write a video player, but with blinkenlights i can make projects that have video sources
07:25 theBear Tom_itx, heh not these days, i'm always doing ... well that unfinished sentence wouldn't have been accurate, and i'm not gonna finish this one either :)
12:34 rue_house after mauling my serial library, recieving dosn't seem towork
12:34 rue_house joy
12:41 rue_house its almost hard to ifnd a suspension kit for my truck that dosn't involve me raising or lowering it
12:57 Tom_itx what's wrong with it?
13:13 rue_house dunno
13:13 rue_house I need to find a jumper I can jamb between pins 2&3 on my serial port
13:16 rue_house oh dear, that means getting to theback of thecompuer
13:16 rue_house maybe there is another way
13:26 rue_house huh, recieves fine here
13:38 rue_house hmm confused
20:54 MrCurious thank god for indian's without who we couldnt have indian food
20:54 Tom_itx or thanksgiving
20:55 MrCurious vindaloo and rice in soft tortilla
20:55 MrCurious i am a fusion cook now
22:42 MrCurious oh yeah! this newPing lib is totally gonna do what i need
22:42 Triffid_Hunter MrCurious: heh last time I was in melbourne, I saw chinese takeaway offering halal meat.. now that's multiculturalism!
22:42 MrCurious i thought chinese was haram
22:42 MrCurious not halal
22:43 Rif MrCurious the newping seems to work great
22:44 MrCurious yeah
22:45 MrCurious question is now do i use 1 or 2 pins per SR-04
22:45 MrCurious i can afford 2, but i wonder what 2 vs 1 gains/loses
22:46 Rif i dunno but i think you need the 2 pin for hc-sr04 best results
22:49 MrCurious yeah. 2 pin appears to allow for faster than 1 pin
22:52 Triffid_Hunter MrCurious: halal is a muslim tradition
22:54 MrCurious yes halal is allowd, and i think haram is forbidden
22:54 MrCurious or hareem
22:54 MrCurious but i may be wrong
22:55 Rif MrCurious i think you need the paralax sensor for the single pin method
22:56 GargantuaSauce personally i am of the opinion that a life without bacon would not be worth living
22:58 MrCurious the lib supports it on all but sr06
22:58 MrCurious and sr06 it can do if you add a cap
22:58 MrCurious GargantuaSauce: you just made me contemplate a bacon vindaloo
22:58 GargantuaSauce i can see that working
22:59 GargantuaSauce also a korean place here has a bacon+noodle+dumpling dish that is fantastic
23:01 MrCurious oh! bacon-vindaloo with kimchee
23:01 MrCurious nah... you would melt
23:02 MrCurious seems i have a tx/rx free on this avr. debating hanging teh gps off it, and leaving the raspberry pi serial free
23:02 GargantuaSauce i'd say the soc would do better with gps data
23:03 MrCurious was just debating having eht avr gobble and re-send, without translate
23:03 MrCurious to minimize the through cabling and to keep it a fast-connect/disconnect
23:03 GargantuaSauce ah...guess that's an option, seems like a waste of mcu time though
23:04 GargantuaSauce i havent delved too deep into avr stuff, you dont have DMA peripheral transfers do you
23:04 MrCurious well it only has 10 pings to service other than that
23:04 MrCurious and i think avr serial buffers in silicon
23:05 MrCurious so it could burn idle cycles shifting teh data from serial to the usb stream
23:07 MrCurious or i use the serial to chain avr's and only eat one usb
23:07 MrCurious which would eliminate the need for a usb hub