#robotics Logs

Dec 20 2012

#robotics Calendar


00:52 rue_mohr !time
00:52 tobbor My watch says its 10:41PM Wed Dec 19 2012
00:53 RifRaf rue_mohr do you know any physics simulation software, i want to make a robot arm
00:53 RifRaf and see the forces required to move joints when putting a motor in different places
01:27 rue_mohr I can help you calculate them
01:32 RifRaf ok sure, well its foxys arms actually, i am gonna recut some parts once the router is fixed, i'll take me tonight to cad something up to show you though
01:33 rue_mohr ok
01:33 rue_mohr gight
01:33 RifRaf just the basic levers and actuator positions, working out how to make the wrist and gripper work as well cause i never got to them, night
01:40 RifRaf so cool, all 4 actuators still work fine and have good force and are silent
01:41 RifRaf can get some measurements with the linear actuators fully in and out
05:18 mac- can you help me to understand point 5.3 ?
05:18 mac- from the paste ?
05:18 mac- http://mathbin.net/126696
08:58 rue_mohr mac-,
08:59 mac- yes?
08:59 rue_mohr your still here, thats a good start
08:59 mac- excellent I think :p
08:59 rue_mohr 6 axis vector eh?
09:00 mac- 3 only
09:00 mac- x y z
09:00 rue_mohr ijk, usually roll pitch yaw
09:02 mac- well this is only a vector
09:04 mac- the key question from my side is why this guy could write that x0 part of vector r0 is equal to r0 * i0 and next taht its equal to r1 * i0
09:04 rue_mohr there is a vector rule there
09:13 mac- what vector rule?
09:16 rue_mohr I forgot them
09:16 rue_mohr without the upper and lower notations, I dont think I have a chance of guessing
09:43 mac- rue_mohr: chance of guesing ?
09:46 rue_mohr wait, the more I read it the more I think they are saying the two vecotrs are the same
09:56 mac- well
09:58 mac- r0 vector is the one which is set in x0 y0 z0 coordination system, next we create x1 y1 z1 coordination system (same as x0 y0 z0) but we rotate it arounz Z axis
09:58 mac- and now r1 vector was rotated together with second coordination system
09:58 mac- and now
09:59 mac- we have two vectors in fact
09:59 mac- r1 which is set for x1 y1 z1 and r0 which is set for x0 y0 z0
10:00 mac- but physically r0 and r1 are same
12:35 TELunus|2 mac-: i is usually used to represent a vector of length 1 (called a unit vector) in the positive x direction, j is used for a unit vector in the positive y direction, and k for a unit vector in the positive z direction.
12:38 TELunus|2 Hmm, that would imply though that on point 5.3 i and j are being multiplied together, which is not defined for vectors.
12:48 TELunus|2 I'm not sure howI think it works out if x0, y1, etc. are refering to unit vectors in the x y or z direction in the 0 or 1 coridinate frame, and i0, j1, etc. are refering to a length. Multiplication of lengths by lengths and lengths by vectors are both defined.
12:49 TELunus|2 Oops, Forgot to delete some stuff, that was supposed to start at the "I think it..."
18:56 zhanx https://lh4.googleusercontent.com/-nk4qJGkk83c/UNOq71kRM_I/AAAAAAAADlM/F_SkUti9ov8/s320/2012-12-20%252019.18.41.jpg
18:57 zhanx https://lh3.googleusercontent.com/-oLsnyFhhKMU/UNOsSttl5YI/AAAAAAAADlc/QKcrXBBaLXs/s320/2012-12-20%252019.23.59.jpg
18:57 zhanx https://lh5.googleusercontent.com/-HA0urXIc60k/UNOuEgjPniI/AAAAAAAADls/HyZGMwmILig/s320/2012-12-20%252019.32.05.jpg
18:59 ace4016 what is it?
18:59 zhanx wall art
19:02 ace4016 ah
19:02 zhanx need to design the pen holder now...
19:02 zhanx 6m of cable
19:02 zhanx 2 stepper motors
19:03 zhanx 1 webcam
19:04 ace4016 sounds like a snake
19:04 zhanx close
19:20 rue_mohr sounds like a plotter
19:22 rue_mohr well I got the steel for making the lathe tale
19:22 rue_mohr table
19:22 rue_mohr they cant give me information on the size of the lathe, so I cant make the table till it gets here
19:22 Tom_itx now you need dimensions
19:22 Tom_itx any mail yet?
19:22 rue_mohr made the legs tho, and I'm making corners
19:22 rue_mohr oh, I'll check
19:25 Tom_itx it should be pretty soon now i'd think
19:30 rue_mohr good call tom
19:30 Tom_itx ha!
19:30 rue_mohr it smells funny, like paint thinner and welding gas fumes....
19:30 rue_mohr oh wait... yup, thats me
19:31 rue_mohr ah the spare t10 sweet
19:31 Tom_itx still there ehh?
19:32 Tom_itx i forgot what all i sent now
19:32 rue_mohr hmm, what is the pitch of the mesh you used for that?
19:32 Tom_itx say what?
19:32 rue_mohr the silk screening
19:32 Tom_itx oh
19:32 Tom_itx i dunno it was printed from eagle
19:33 rue_mohr on the box
19:33 Tom_itx same silk as what you have
19:33 Tom_itx the font?
19:33 rue_mohr oh I got my silk from you didn't I?
19:33 Tom_itx far as i know
19:34 Tom_itx what i sent you came off the same roll as that
19:34 rue_mohr you should put your name ont eh boxes too
19:34 Tom_itx not the prettiest but it's functional
19:34 rue_mohr band them a little, ya know
19:35 rue_mohr it looks great
19:35 Tom_itx the bumpy box doesn't help
19:36 rue_mohr heh, nice poke-in on the reset pullup
19:37 rue_mohr which proto to program the t10?
19:37 rue_mohr its different cause of lack of pins yes?
19:37 Tom_itx what?
19:38 Tom_itx plug it in TPI and program it
19:38 Tom_itx the 6pin header
19:38 rue_mohr for programming the t10, its not isp iirc
19:38 Tom_itx no, TPI
19:38 rue_mohr so what was the pdi for?
19:38 Tom_itx studio will select it
19:38 Tom_itx xmega is PDI
19:38 rue_mohr ah
19:39 Tom_itx avrdude should select it also when you select the chip
19:39 Tom_itx however xmega is 3.3v only
19:39 rue_mohr cool
19:39 Tom_itx so turn the switch toward the plugs if you ever do that
19:39 rue_mohr right
19:39 Tom_itx and be careful with the switch :)
19:39 rue_mohr power from slave 3.3V
19:39 Tom_itx it's not a power breaker...
19:39 Tom_itx yup
19:39 rue_mohr its header <-> usb interconnect?
19:40 Tom_itx huh?
19:40 rue_mohr heh
19:40 rue_mohr I'll ask when I go use it :)
19:40 Tom_itx just plug it in usb
19:40 Tom_itx and program it
19:40 rue_mohr :)
19:40 Tom_itx i got a test tiny10 program if you need one
19:41 Tom_itx blinky etc
19:41 Tom_itx oh i see what you mean now... on the reset
19:41 Tom_itx on the t10 board
19:42 rue_mohr :)
19:42 rue_mohr I'v started doing all the resistors I can in .1" spacing and soldering smt across the undrilled holes
19:42 Tom_itx i forgot it on those
19:43 Tom_itx it will show up the same way your little breakout board did
19:44 Tom_itx http://tom-itx.dyndns.org:81/~webpage/avr/tiny10/
19:44 Tom_itx there's a blinky hex
19:44 Tom_itx led across vcc and PD2
19:44 Tom_itx B*
19:44 rue_mohr I'm off starting tommorow, so I'll play
19:45 rue_mohr after I clean out the gutters, finish and submit my timesheet for work, deposit cheque in bank, +- manage the lathe being dropped off...
19:45 Tom_itx you may need to make a hv reset thingy for it
19:45 Tom_itx so you can use the reset pin as io
19:45 rue_mohr get a christmas tree, decorate the house
19:46 rue_mohr Tom_itx, hmmm
19:46 rue_mohr what does the hv reset consist of?
19:46 Tom_itx 12v
19:46 rue_mohr 5.6V?
19:46 rue_mohr ooo
19:46 rue_mohr transistor, and resistors?
19:46 Tom_itx just a sec i'll tell you where it goes
19:46 rue_mohr brb, bandsaw
19:46 Tom_itx i got a nice little chargepump chip
19:47 Tom_itx max662
19:47 Tom_itx but i used a generic one alot cheaper
19:48 Tom_itx you need to remove the reset line FROM the programmer so it won't get 12v on it, then put 12v on the RESET pin of the chip and program it normally
19:50 Tom_itx then remove it to run
19:50 rue_mohr ? so it isn't just reset at 12V?
19:50 Tom_itx you hold reset at 12v while programming
19:51 rue_mohr right
19:51 rue_mohr normally it runs reset high when its programmming? or low?
19:51 Tom_itx low i think
19:51 Tom_itx GND
19:52 rue_mohr ah, so if you make gnd = 12V its all good
19:52 Tom_itx umm not ALL
19:52 Tom_itx just reseet
19:54 rue_mohr yea, tranalate reset = 5V reset = 5V and reset = 0V to reset = 12V
19:54 rue_mohr odd, datasheet dosn't say the hv reset
19:54 Tom_itx ST662ACD-TR
19:54 rue_mohr thought it would be in the min/max voltage limits
19:55 rue_mohr oh there
19:55 rue_mohr 13V abs max
19:55 Tom_itx just get one of those and power it from usb
19:55 rue_mohr just curious if 10V i enough or what
19:56 Tom_itx 2 .22uf and 2 4.7uf
19:56 Tom_itx 10 is not enough i tried it
19:56 Tom_itx and 1 .1uf
19:56 Tom_itx for the charge pump
19:59 Tom_itx mouser is 1/3 the price than digikey on that
20:06 rue_mohr +- the $50 at the border for customs
20:06 rue_mohr per box
20:07 rue_mohr mouser likes to break small orders into multiple boxes
20:08 rue_mohr I think 12 corner braces will be enough
20:09 Tom_itx i should have sent one
20:09 Tom_itx i'm out of those boards though i think
20:09 rue_mohr thats ok
20:10 Tom_itx you will want 12v though
20:10 rue_mohr I think both projecs are just 1 in 1 out
20:10 Tom_itx oh
20:10 rue_mohr the windshield wiper timer is just a button input, and an SCR drive output
20:15 Tom_itx what was the other project?
20:20 rue_mohr someone wanted a 1 button flashlight controller, but they dissapeared
20:23 brownies hello
20:24 brownies i'm trying to wrap my head around all the various boards available for running the software and plugging in the motors/sensors for my little robot
20:25 brownies i'd like to run pure C code without too much hassle, so i'm looking mostly at the ARM *-boards ... BeagleBoard, PandaBord, and possibly Raspberry Pi ... but there's also Arduino
20:25 Tom_itx or you could make your own
20:25 Tom_itx like rue n i do
20:25 brownies can anyone shed some light on why one might be better than the other, or how i'd go about choosing, or what might be friendliest to work with for plugging in motors/sensors?
20:26 brownies Tom_itx: heh, well, i'm not so handy with a soldering iron, really.
20:26 Tom_itx if you're gonna build bots you'd better get handy with one
20:27 brownies i suppose so. but, since i have a lot of things to learn, i'd like to just get a prototype running first, even if the hardware is suboptimal, and then optimize from there.
20:27 Tom_itx how big are the motors
20:27 rue_mohr its just about what suits you project best
20:28 rue_mohr _MY_ boards are 'completely generic' they just have signals off them, and I have standard header conenctors that go to standard header connectors on input and output baords
20:28 rue_mohr less programming differences, everything uses the same connector
20:29 brownies basically i'd like to buy an RC car, rip out the existing board it comes with, connect the motors/wheels to my own board, stick a camera on top, and run my own code for autonomous driving
20:29 rue_mohr it works ok for the most part
20:29 rue_mohr uness its a slow rc car thats a bad idea
20:29 rue_mohr but ok
20:29 brownies yeah, just indoor/toy-sized, really.
20:29 rue_mohr would you but a ready to program robot?
20:29 brownies possibly. depends what "ready to program" means exactly.
20:30 brownies i don't want to be locked in to some super-proprietary platform like Lego or somesuch.
20:30 Tom_itx avr gcc
20:30 rue_mohr comes with basic software and information on how it works do you can reprogram it (C) to do whatever you want
20:30 rue_mohr if so, how much would you look at spending?
20:30 brownies yeah that could work
20:30 brownies < $500 would be nice.
20:32 brownies Tom_itx: yeah i saw Arduino could compile and run OpenCV without too much trouble, but on the other hand the fact that i can stick Linux on a BeagleBoard is pretty compelling
20:33 rue_mohr 500! wow, k..
20:34 Tom_itx no shit
20:35 brownies well it looks like i'd better budget ~ 100 just for a basic board?
20:35 Tom_itx rue_mohr, you see how you could reverse that adapter?
20:35 brownies then you add in motors, a couple webcams, and a budget to account for the fact that i'll probably drive the thing directly into a wall multiple times
20:35 anannie brownies: You could go the classic microcontroller route if you have those requirements. The 8051 is very easy to start from and although it isn't heavy enough to handle the loads you are talking about you can quickly prototype and get something from it.
20:36 brownies anannie: that does look nice and simple, but i am inclined to stick to ARM or Arduino since i want to compile OpenCV for it
20:36 Tom_itx if you want arduino get em off flebay for cheap
20:37 Tom_itx i got an arduino 2560 recently for like 20 bucks or so
20:38 anannie brownies: how about a tie? Interface the 8051 with the motors to control them and run OpenCV on top of a raspberry pi + batteries and interface using a serial port type connection?
20:38 brownies anannie: hm, that could work.
20:38 brownies although that's heading into making v1 more complicated than i'd like.
20:39 anannie It's actually going to be easier
20:39 rue_mohr brownies, I can have you a ready to go robot for much much less than $500
20:39 brownies rue_mohr: go on
20:39 rue_mohr atmega32
20:39 rue_mohr just a sec, I'll take a pic of somehting I was assembling
20:41 anannie rue_mohr: Unless I'm mistaken, an atmega32 won't be powerful enough to run OpenCV
20:41 brownies i was thinking the same, but i'm curious to see where this is going regardless
20:41 rue_mohr definitly mistaken
20:42 rue_mohr its an 8 bit 16Mhz, processor
20:42 rue_mohr Tom_itx, would you throw a mega32 datasheet at him?
20:43 Tom_itx http://tom-itx.dyndns.org:81/~webpage/pdf/atmel/Atmega32.pdf
20:46 brownies assuming it's this http://www.atmel.com/Images/doc2503.pdf i just read it :)
20:46 brownies Tom_itx: yup, looks to be the same. thanks.
20:46 rue_mohr !assist robots
20:46 tobbor Possibly http://eds.dyndns.org/~ircjunk/robots
20:46 brownies ooh, coffeebot
20:46 rue_mohr http://eds.dyndns.org/~ircjunk/robots/LexanBot1.jpg
20:47 rue_mohr http://eds.dyndns.org/~ircjunk/robots/LexanBot2.jpg
20:47 anannie Lexan is awesome rue_mohr, but it's a pain to work with
20:47 rue_mohr its about 6x6"
20:47 anannie how did you manage the neat cuts?
20:47 rue_mohr its lexan, your thinking of plexiglass
20:47 Tom_itx we're just that good
20:47 rue_mohr plexi shatters
20:47 rue_mohr you cant stahher lexan
20:47 brownies rue_mohr: ooh i like that a lot. so you're running that little RWD "car" on an ATMega32?
20:48 anannie Lexan is that same flexible bendy polymer from GE, right?
20:48 rue_mohr it sports a 6V battery pack
20:48 rue_mohr lexan is bullet proff glass
20:48 Tom_itx http://tom-itx.dyndns.org:81/~webpage/lightseeker/lightseeker_index.php
20:48 rue_mohr super easy to work with, just kinda expensive
20:48 Tom_itx that was my first one i think
20:49 rue_mohr its white because I havn't peeled it yet
20:49 rue_mohr under the coating its clear
20:49 anannie rue_mohr: Yes
20:49 rue_mohr so, I could do it up with one of my controllers...
20:49 anannie I used to work with it and it was very hard to get cuts with thin sheets of it
20:50 rue_mohr http://eds.dyndns.org/~ircjunk/avr/babyboard_mk3/babyboard_III.html
20:50 rue_mohr the wheel motors have build in drivers
20:50 anannie they are steppers?
20:50 brownies which motors are you using?
20:50 rue_mohr no, DC
20:51 rue_mohr they are modifed (well not yet) servos
20:51 anannie Oh
20:52 rue_mohr I can add a lot of accessories, a speaker for beeping, a 4 button, 4 led keypad, a 2x16 LCD screen
20:52 rue_mohr ...
20:52 Triffid_Hunter lexan is a trade name for polycarbonate, same stuff that CDs are made from
20:52 rue_mohr an IR remote port
20:52 rue_mohr Triffid_Hunter, no...
20:52 rue_mohr lexan is not brittle
20:52 rue_mohr it tears
20:53 anannie rue_mohr: It is a form of polycarbonate
20:53 rue_mohr ok, but its not brittle
20:53 anannie That's because it has different processing IIRC
20:53 rue_mohr ok, main point, you cannot crack it
20:53 anannie very nice cross linking
20:53 Triffid_Hunter yeah they do stuff to it, still mostly PC though
20:53 rue_mohr :)
20:54 rue_mohr cross linking?
20:54 Jak_o_Shadows technical term.
20:54 anannie Plywood is strong, because the polymers have linked across different planes
20:55 rue_mohr tom could supply you with a usb programmable avr board
20:55 anannie the same thing occurs in a very different way in polycarbonate
20:55 rue_mohr ah
20:55 rue_mohr brownies, whats your interest level?
20:55 rue_mohr OR, hmm
20:55 rue_mohr or I could sell you one of my robots....
20:56 rue_mohr http://eds.dyndns.org/~ircjunk/robots/multibots/smokingprogress/dscn6164.jpg
20:56 rue_mohr if I could bear to part with any of them, which I dont think I can
20:56 rue_mohr then again, the shop is really stuffed
20:57 brownies rue_mohr: interest level in what context?
20:57 Tom_itx yeah and you need room for the lathe too
20:57 rue_mohr are you interested in bying a ready to program robot?
20:57 rue_mohr I made room for the lathe!
20:57 Tom_itx brownies, do you want a beer bot or one that will walk on mars?
20:57 brownies Tom_itx: first one, then the other ;)
20:58 brownies rue_mohr: perhaps. iirc you never gave me an example of one?
20:58 brownies as in, what would it come with, how much do such things cost, etc.
20:58 rue_mohr did you click ANY of the links I just posted?
20:58 Jak_o_Shadows rue_mohr: if you don't make a rocket powered robot i will be disappointed
20:58 brownies how ready is "ready"... you know.
20:58 brownies rue_mohr: yeah i did. i didn't realize those were your examples though. my bad.
20:58 brownies so you sell those? is that what you're saying?
20:59 rue_mohr ready is "it comes preprgrammed, switch it on and it goes, modify the software to your hearts content"
20:59 rue_mohr I can
20:59 Tom_itx he collects them
20:59 rue_mohr my lawn mower bot may be up for adoption soonish
20:59 rue_mohr http://eds.dyndns.org/~ircjunk/robots/mowerbot/p1020962.jpg
20:59 rue_mohr :)
20:59 rue_mohr its a 386! :)
21:00 rue_mohr brownies, likley sub $100
21:00 rue_mohr prolly above $40
21:00 brownies rue_mohr: i see. well, perhaps.
21:00 rue_mohr http://eds.dyndns.org/~ircjunk/robots/robots2.html
21:01 brownies i'm more interested in building one myself as long as it's not going to take like 3 months.
21:01 rue_mohr I need to update the index page
21:01 ownies l
21:01 rue_mohr buddy I could go, I'm just about to play with buddy II again
21:02 rue_mohr the coffeebot IS plexiglass, unfortunatly, if anyone wants to work with that its open
21:02 rue_mohr littlebot should go to ebay
21:02 brownies finish your guides, you lazy bum =P
21:02 brownies http://eds.dyndns.org/~ircjunk/robots/somethingbot/something_bot.html
21:02 rue_mohr heh
21:02 rue_mohr nobody would follow them, there is no point
21:03 brownies i would.
21:03 rue_mohr I was developing them with people
21:03 brownies i already finished your NothingBot guide during this conversation!
21:03 rue_mohr but they wouldn't even go to the hardware store and get a nail, so, whatever
21:03 rue_mohr :0
21:03 rue_mohr )
21:04 rue_mohr I think I see what I was up to
21:05 brownies well, i think i will just buy a BeagleBoard, some motors and wheels, and then bug you incessantly with stupid questions while i put them together :)
21:13 rue_mohr ok
21:13 home lol
21:13 home need a motor driver
21:14 home anyone got any suggestions on where I can find one XD
21:14 home to power an RC car XD
21:14 Tom_itx how big?
21:14 rue_mohr use the motor driver it came with
21:14 rue_mohr if you have a camera I'll show you how to hack it
21:15 Jak_o_Shadows Hey rue_mohr or Tom_itx, did either of you have an example of a nice steering linkage? I have a single powered wheel at the back (or front i 'spose). The chassis is about 50cm wide
21:15 home I need to get an RC car
21:15 rue_mohr dont do ackermann steering, it sucks
21:15 home but..urgh
21:15 rue_mohr http://eds.dyndns.org/~ircjunk/robots/nothingbot/nothing_bot.html
21:15 rue_mohr home, have you been following those instructions?
21:16 home I have made progress
21:16 home definitely
21:16 rue_mohr do you have a box for your project?
21:17 home yeah
21:17 home got pics
21:17 rue_mohr whats in it?
21:17 home let me grab
21:17 home This is all I have: http://imgur.com/Oa3hn
21:18 home and the camera isn't even mine.. I just have it "borrowed"
21:18 home was thinking of hacking an rc car...and turning it into al ittle land rover XD
21:18 rue_mohr ok
21:18 rue_mohr I sugget makinga wired remote control for it, to start
21:19 home wired..hmm
21:19 home Yeah, that should be do able
21:19 home honestly, I am more worried about having the parts first...
21:19 home I have seen others do the same thing..
21:20 home Something like this: http://www.aonsquared.co.uk/the_dark_pi_rises
21:20 rue_mohr can you buy things from ebay?
21:20 home yeah, I can
21:20 home not by myself though :/
21:20 rue_mohr it takes 22 days for things to arrive from china
21:20 home I really dislike Ebay's loading times though
21:21 home yeah, I know...
21:21 rue_mohr in 22 days, do you want to have a car or wish you had ordered one?
21:21 home I need one now XD
21:21 home over the holiday I plan on finishing it
21:21 rue_mohr ok, in 22 days we will see if you got one
21:22 rue_mohr if not....
21:22 home I might go to the city this Satuday, assuming all hell does not break lose
21:22 home and buy an RC car, from the local stores :/
21:24 rue_mohr I'v already started the stopwatch, 22days...
21:24 home :o
21:24 Tom_itx there's but one left to do everything though
21:24 home okiedokie
21:29 rue_mohr http://www.ebay.ca/itm/TopRace-2011A1-4-1-98-R-C-27MHz-Car-Mini-Transport-Intercontinental-Express-/310506713831
21:29 rue_mohr $15, buy it now, free shipping, 22 days, done
21:30 home not the one I was looking for XD
21:30 rue_mohr ok I take it back smaller than I thought
21:31 rue_mohr http://www.ebay.ca/itm/27MHZ-1-43-Multifunction-Radio-Control-Racing-Car-with-Sound-Light-z30z-/130785301618
21:31 rue_mohr till you get to the photo with the pen, it looks great
21:32 home LOL
21:32 rue_mohr http://www.ebay.ca/itm/Mercedes-Benz-M-Class-RC-Car-27-mhz-Die-Cast-New-Ray-1-32-scale-NIB-/290826585321
21:32 home haha
21:33 home will I be able to fit a camera on it? XD
21:35 rue_mohr http://www.ebay.ca/itm/Pre-Assembled-2009B1-4-R-C-Remote-Control-Car-1-12-27MHZ-On-Road-RC-Toy-z30z-/121000551319
21:35 rue_mohr bingo
21:35 rue_mohr a real sized one
21:36 home I can take the cover off right? XD
21:36 rue_mohr http://www.ebay.ca/itm/Realistic-HUMMER-H2-SUV-BLACK-TRUCK-1-27-RADIO-REMOTE-CONTOL-RASTAR-NEW-RC-R-C-/300632521395
21:37 rue_mohr the first thing you ditch is the cover
21:37 rue_mohr http://www.ebay.ca/itm/NKOK-R-C-FORD-F-150-SVT-LIGHTNING-1-24-27MHz-BLUE-82502-/370487659921
21:37 home that looks reliable
21:38 home and exactly what I am looking for :/
21:39 home talking to a local hackerspace...
21:39 home and where I can find some rc cars
21:39 rue_mohr you have 21.96 days left
21:41 rue_mohr http://www.ebay.ca/itm/NEW-HOLLAND-T7070-TRACTOR-1-24-R-C-NEW-RAY-NEW-88553-/370699495084
21:42 home rue_mohr: I am uhm
21:42 home I think I will look around locally
21:42 home seen an rc car store
21:42 home not sure if they are open in Saturday though
21:43 rue_mohr http://www.ebay.ca/itm/New-Holland-E215B-Construction-Crawler-Excavator-R-C-/230899653909
21:43 rue_mohr look, its alrady got an arm
21:43 rue_mohr home in 22 days, I'm sure you wont have anyting
21:43 home :(
21:44 me c
21:46 home rue_mohr: hmmm
22:32 Tom_itx it's no use
22:46 home Tom_itx: what;s no use
22:55 rue_mohr crying
22:55 rue_mohr it wont make them send your car express
23:44 zhanx ok basics are done....
23:44 zhanx need a marker