#robotics Logs
Nov 13 2011
#robotics Calendar
00:18 home hey rue_house
00:18 home whats up
00:19 rue_house want to make soemthing like http://www.fourwalledcubicle.com/ExplorerBot.php ?
00:21 home sure why not
00:26 rue_house you just want anything that moves and you can program?
00:34 thylane how much do NAOs cost?
00:36 Kidiron USD $15999.00 - http://www.robotshop.com/aldebaran-robotics-en.html
00:40 thylane holy mary mother of
00:41 Kidiron haha, it's not meant for hobby developers. If you are a university or company, you can get one for free as part of their developer project.
00:42 Kidiron My university has two of them for HCI research.
00:42 thylane how much does one of them weigh?
00:43 Kidiron thylane, http://en.wikipedia.org/wiki/Nao_(robot)#Specifications
00:48 home rue_house, yes
00:48 home I have one big robot that I am already programming for at school.
00:49 home But I want something personal that I can work on.
00:49 rue_house ok, whats your budget
00:49 home 0 dollars "D
00:49 home :D
00:49 home I have no money :/
00:50 rue_house do you have things to strip for parts?
00:50 Kidiron home, look up beam robotics if you want to make super-cheap robots. [provided that you have no issues with them being 100% analogue]
00:51 home analog 0_0
00:52 Kidiron analog
00:52 thylane for some reason i thought NAOs were 3 feet tall and weighed 60 lbs
00:52 rue_house I refuse to force help on anyone not endangering me
00:54 Kidiron if NAOs were like that I wouldn't want to punt them across the room when I see them.
00:54 thylane i guess they are 17 inches tall and weigh 8 lbs
00:55 Kidiron totally punt-able
00:57 home Kidiron, I am not sure
01:00 Kidiron okay, at least kick-able.
01:02 home rue_house, I have a WRT54G router
01:03 home not sure where to get other parts :/
01:03 rue_house hmm the wrt is all you have?
01:03 home i got a joypad XD
01:06 home no servos or motors :/
01:10 home I dont have much
01:11 rue_house what do you think you can get
01:13 home not sure
11:15 Tom_itx rue_bed
11:15 Tom_itx how does gray code work?
11:16 Tom_itx for motor commutation
11:18 eadthem it dosent work directly it just gives you relitive position
11:18 Tom_itx i understand it's a servo system
11:18 Tom_itx just don't get how it works
11:19 eadthem the idea is that mechanical switches wont ever change there state all at once
11:20 eadthem gray code means only 1 switch changes state at a given time
11:40 rue_bed grey is a counting system where by only 1 bit changes between each consecutivenumber, and such that 1 bit is all that changes in rollover
11:41 rue_bed its used frequintly in encoders so that microcontorllers are able to detect missing a poisitioning pulse due to infrequient sampling
11:41 rue_bed there are 8 bit absolute grey encoders made
11:42 rue_bed 00
11:42 rue_bed 01
11:42 rue_bed 11
11:42 rue_bed 10
11:42 rue_bed 00
11:42 rue_bed 01
11:42 rue_bed 11
11:42 rue_bed 10
11:43 rue_bed it also happens to be a sequence for operatingsteppers
11:43 rue_bed phase a /a b /b
11:43 rue_bed 1001
11:43 rue_bed 0101
11:43 rue_bed 0110
11:44 rue_bed 0101
11:44 rue_bed 1001
11:45 rue_bed 2 grey bidirectional counters can be created with 3 discrete logic ttl chips
11:46 rue_bed or one tiny13
11:50 rue_bed (one on a tiny13)
12:06 rue_bed coppermine, I didn't hear how you got hte motor controllers working
12:06 coppermine why do you want to know?
12:06 rue_bed because its likey that others will come in and ask
12:06 coppermine well one of them works fine
12:07 coppermine the other one overheats in one of the directions
12:07 coppermine so i set the overheated direction to REVERSE since its used less
12:07 coppermine and try not to use the reverse much until i replace it
12:07 coppermine it still works 100%
12:07 rue_bed strange, it is a defective board?
12:07 coppermine just that the board overheats to 100C+
12:07 coppermine rue_bed: looks like it doesnt it?
12:07 rue_bed yes
12:07 rue_bed I would call them up
12:07 coppermine i did
12:07 coppermine they know
12:07 coppermine they havent issued me a RMA # yet
12:08 rue_bed k, did they say, hmm
12:08 coppermine if i touch the board its not hot, must be internal IC temperature
12:08 rue_bed so did the one controller always work fine?
12:08 coppermine and its not worth for me to mail it back
12:08 coppermine yes
12:08 coppermine it works fine
12:08 rue_bed I thought you had problems with both of them
12:08 coppermine it will cost 20$ to mail it back
12:08 coppermine rue_bed: no just one
12:08 coppermine rue_bed: the other works fine
12:08 coppermine when i figured out how they work
12:09 rue_bed just a fet bridge
12:09 coppermine yes
12:09 coppermine i force it to work by allow it to run at 140C
12:09 coppermine becuas there was limits to NOT run over 70C
12:09 rue_bed heh, it'll only do that for a while
12:09 coppermine until it burns
12:10 rue_bed 160c is the melting point of the solder
12:10 coppermine i set the limit to 140
12:10 coppermine and it hasnt gone over that
12:10 rue_bed +- the solder type
12:10 coppermine so it might work
12:10 coppermine anyways ill just order a replacement one locally
12:10 coppermine instead of mailing it it back will cost me 20$ + customs
12:10 rue_bed did they use one bridge chip or a few fets?
12:10 coppermine since i live in canada
12:10 coppermine i dont know the itnernal diagrams
12:11 rue_bed did they use one bridge chip or a few fets?
12:11 coppermine i dont know
12:11 coppermine theres a few chips on it
12:11 rue_bed there are either 4 chips, plus a controller chip, or 2 chips
12:11 coppermine dont have it in front of me
12:11 coppermine http://www.google.com/imgres?q=18v15&um=1&hl=en&client=firefox-a&sa=N&rls=org.mozilla:en-US:official&biw=1255&bih=859&tbm=isch&tbnid=fnK87AOuCNjI6M:&imgrefurl=http://www.skpang.co.uk/catalog/pololu-simple-highpower-motor-controller-18v15-p-877.html&docid=cbmkHABeTtKaKM&imgurl=http://www.skpang.co.uk/catalog/images/robotics/motor_drive/0J2860.600.jpg&w=600&h=449&ei=awbATtDxGqHL0QG058HkBA&zoom=1&iact=rc&dur=412&sig=102278356818591788443&page=1&t
12:11 rue_bed mmmhmmm
12:11 coppermine thats what it looks like
12:12 rue_bed suppose I should get out of bed anyhow
12:13 coppermine can it damage my dc motors?
12:13 coppermine or if it burns it will just stop working
12:14 coppermine another thing, when i give commands to my robot it takes seconds to make it move
12:14 coppermine how can I increase latency
12:14 coppermine or remove it
12:17 rue_bed huh
12:17 rue_bed ask a question and leaves
12:17 rue_bed well, that controller will pop a chip within a few hours or operation
12:18 rue_bed and he dosn't know a thing about electronics to fix it
12:18 rue_bed hmm, I need to design a usb to audio widget
12:18 Tom_itx so rue, how would that be used to drive a bldc?
12:19 Tom_itx dean has that in his lufa demos
12:21 Tom_itx so rue_bed did you get the carb tuned right to where it idles and runs at top end without surging?
12:22 Tom_itx well rue_bed he's lost and doesn't want you to know it
12:42 rue_house oh the tune process for that thing is pretty involved, I'll attack it later
12:43 rue_house unless its a 2 phase brushless I'm not at all sure how to apply grey code
12:43 rue_house I dont think it applies to 3+ bits for driving motors
12:43 rue_house it couldn't
12:44 rue_house Tom_itx, do you have any boards going in?
12:44 rue_house the usb-> audio device I have is so horrid I have to make one of my own, but all the usb avrs are tooo small for me
12:44 rue_house I think I can doa prototype
12:44 rue_house abc said he was into a board design for the audio output demo
13:09 Tom_itx rue_house what chip does it need?
13:10 Tom_itx i've got a atmega32U2 and U4 board
13:10 Tom_itx U4 has adc
13:10 rue_house I need DAC, so I'm goin external
13:10 Tom_itx the U2 would do it then
13:10 Tom_itx probably
13:10 rue_house abc's demo code if for U4
13:11 Tom_itx shouldn't matter
13:11 Tom_itx http://tom-itx.dyndns.org:81/~webpage/boards/USB_Breakout/USB_Breakout_index.php
13:12 rue_house https://github.com/abcminiuser/lufa-lib/blob/master/trunk/Demos/Device/ClassDriver/AudioOutput/AudioOutput.txt
13:13 Tom_itx i've got a u4 board but only one is populated
13:13 Tom_itx http://tom-itx.dyndns.org:81/~webpage/boards/atmega32u4/atmega32u4_1.jpg
13:13 rue_house hmm
13:13 rue_house I was wondering if I should just make up a board with the DAC setup I want on it
13:14 Tom_itx you could make it fit the breakout pinout and just attach it
13:14 Tom_itx save you alot of effort
13:14 rue_house why tqfp?
13:14 Tom_itx all they had at the time and i wanted .6 wide pin spacing
13:14 Tom_itx and that's not tqfp, it's qfn
13:15 rue_house erp
13:15 Tom_itx i've got a handfull of those boards
13:15 rue_house yea n = noleads... didn't think tqfp worked
13:15 Tom_itx and maybe 6 or 8 chips
13:15 rue_house hmmm
13:16 Tom_itx wanna solder it?
13:16 Tom_itx :)
13:16 rue_house if I knew there were other things I'd use it for, I'd jump on it
13:16 rue_house I could
13:16 Tom_itx i used the toaster but i still had a couple bridges
13:17 rue_house I presume the board are completely unpopulated, you do the chip first?
13:17 Tom_itx no i do it all at once
13:17 Tom_itx http://tom-itx.dyndns.org:81/~webpage/boards/atmega32u4/atmega32U4_3.jpg
13:17 rue_house ?? 4 layer?
13:18 Tom_itx 2
13:18 rue_house hmm they changed the power pin layout...
13:18 e_house squ
13:18 Tom_itx i've got 7 blank ones
13:19 rue_house hmm
13:19 Tom_itx oh the purple ones use a different reset button
13:19 rue_house I'll give it some time for my brain to accept the idea
13:19 Tom_itx and resonator instead of the crystal
13:20 rue_house I wonder if thats stable enough for everything
13:20 rue_house 16Mhz?
13:20 Tom_itx yes
13:20 Tom_itx i've had no problems with them
13:21 Tom_itx i may still have some crystals
13:21 Tom_itx http://tom-itx.dyndns.org:81/~webpage/boards/atmega32u4/atmega32u4_1.jpg
13:21 Tom_itx like that one
13:21 Tom_itx http://tom-itx.dyndns.org:81/~webpage/boards/USB_Breakout/USB_Breakout.jpg
13:22 Tom_itx and see the difference in the reset button?
13:22 Tom_itx the resonator is right above it in that last pic
13:27 rue_house I see
13:27 Tom_itx i must have 2 of those made up
13:28 Tom_itx i see a purple one here on the shelf and the pic is of a blue one
14:26 rue_house ok I ahve an idea for an 8 entry paramiter lookup table for the airmuscle control
14:27 rue_house my max error is 1024, and I need to take that down to 3 bits
14:45 rue_house http://www.tenx.com.tw/product_list.aspx?CategoryID=68 there is the company that made the chip in the usb audio device I have thats junk
14:45 rue_house from the information on their site about the chip, I think I see why its junk
14:56 rue_shop3 so rue, tell me about this lookup table
14:56 zhanx is it to prevent floating point math?
14:59 Steffanx rue_shop3 isn't the same guy as rue_house ?!
15:03 Tom_itx naw they're all different
15:03 Tom_itx just ask em
15:03 Kimlaroux Steffanx, every rue is different
15:03 rue_shop3 zhanx the valves are non-matched, AND they both have a nonlinear responce
15:04 Steffanx Yeah, but every rue is also the same Kimlaroux ?
15:04 rue_shop3 and I want it to self-tune
15:05 rue_shop3 just kinda working on popping the top off the reactor
15:05 rue_shop3 cant find the carridge for the gantry
15:07 rue_shop2 I just want to say, that you, my friend, are a HORRIBLE speller
15:07 rue_shop3 pff
15:07 Tom_itx Steffanx they seem to know each other
15:07 Tom_itx somewhat friends i believe
15:08 Steffanx Ok :S
15:09 Steffanx Just like those tom_shop, tom_garage and tom_whatever guys? :)
15:11 Kimlaroux nah, those toms are just rampants AIs
15:13 rue_shop3 where did you put it!?
15:14 rue_shop2 my job, is just to put it away, nothing about getting it back
15:14 rue_shop3 I looked everywhere dry tho!
15:14 rue_shop2 no you forgot one place
15:14 rue_shop3 DAMN YOU!
15:16 rue_shop3 not there
15:17 rue_shop3 ... somewhere dry...
15:17 Tom_itx rue_bed gave it to rue_shop and he gave it to rue_house who buried it in the front yard
15:21 rue_shop2 nope, I put it somewhere dry do the bearings wouldn't rust
15:22 rue_shop3 its not in the shop, its not in the shed, its not int eh house, its not under the house, its not in the tent, its not on the deck THERE IS NOWHERE ELSE
15:23 Tom_itx kitty stole it
15:23 rue_shop2 of all the things he is good at and he falls down so hard on the seeing part
15:45 Kimlaroux maybe you should ask rue_bed if he's seen it, that guy is often so tired that he can't remember what he did
15:52 Tom_itx i don't think he had it to start with, just losing his mind
15:57 rue_shop3 I found it!
15:57 rue_shop2 good work buddy
15:58 Tom_itx so what exactly was _IT_ ?
16:00 rue_shop3 its the cart for the gantry crane
16:00 rue_shop3 without it I can only pick things up and down
16:02 rue_shop3 and I need to take the top off the reactor
16:03 Tom_itx i thought it blew it's top
16:08 Kimlaroux you knows, you're really scary sometimes when you talk about this reactor of yours...
16:09 Kimlaroux -s
16:14 rue_shop3 the inside is scaling really badly
16:14 rue_shop3 :/
16:14 rue_shop3 I think I'm gonna have to replace the bit by the firebox sooner than I expected
16:14 rue_shop3 see if I can work out an IR baffle to reduce the radiation loss
16:15 rue_shop3 the bit below the fire grill seems to be protected by a layer of melted ROCK
16:18 rue_shop3 hmm, lining the fire area with brick would choke it down and protect the steel
16:20 rue_shop3 about 25" tall by 18" dia
16:22 rue_shop Circumfrence is : 56.548668
16:22 rue_shop3 thanks
16:23 rue_shop3 so 25" x 56.5"
16:25 rue_shop 13" off the 22" tank cover
16:26 Kimlaroux what about refraction ceramic?
16:34 rue_shop3 this is a zero dollars down project
16:36 rue_shop3 can you get some to me for free?
16:39 Steffanx zero $ project lol
16:42 rue_shop3 its required to cost less thant he gas bill to heat the house
16:42 rue_shop3 ok the IR baffle is in
16:48 Kimlaroux considering the amount of time that you put into it, it's quite ironic
17:29 rue_shop3 time is free
17:30 Tom_itx no it's not
17:30 Tom_itx it costs you your life
17:37 rue_shop3 do you watch tv?
17:41 Tom_itx not much and mostly when i'm working on a project
17:42 rue_shop3 I suspect you get my point
17:44 Tom_itx did you get the carb fixed?
17:51 rue_shop3 no I worked on teh boiler, Its a crumby dan and I'm not into kneeling in the mud for an hour
17:51 rue_shop3 *sigh*
17:54 rue_shop3 I verrymuch hope to be abel to build a new house SOON that dosn't have a bazillion problems none the least of which is an anability to reach over 20c in winter nomatter how much heat is poured into it
18:03 e_shop tries to un
18:04 rue_shop I need to work out how to fix the fact that my life is going to end too soon
18:04 Tom_itx eat from a smaller plate
18:05 rue_shop I need to live a LOT longer
18:06 rue_shop if the government keeps bumping up the age people work to, they will have to extend lives by 75 years or so anyhow
18:10 Tom_itx i wanna make a rotary axis
18:10 Tom_itx any ideas?
18:11 rue_shop speed? torque? precision?
18:11 Tom_itx precision and torque
18:11 rue_shop oh for you cnc
18:11 Tom_itx probably a worm drive
18:12 Tom_itx yeah
18:12 rue_shop na, you want a hormonic drive
18:12 Tom_itx can't afford to do it right
18:12 rue_shop oh
18:12 Tom_itx those cost too much
18:12 rue_shop you have a lathe?
18:12 Tom_itx i checked already
18:12 Tom_itx yeah but it's small
18:12 rue_shop listen carefully
18:13 rue_shop you put a tap in the CHUCK, and a metal disk, on a pivot on the carridge. you push the disk into the bit so it cuts threads into (around) the disk
18:13 rue_shop get it?
18:13 Tom_itx yeah
18:13 rue_shop ok
18:13 rue_shop do you think you can get a brass disk?
18:13 Tom_itx i've heard of that before
18:14 rue_shop oh
18:14 Tom_itx i doubt it
18:14 rue_shop hmm
18:14 rue_shop I suppose I could cast you an aluminum one
18:14 rue_shop or can you get an aluminum one already
18:15 Tom_itx harmonic drive is intriguing
18:15 rue_shop low low backlash, good reduction
18:15 Tom_itx i also considered a belt reduction to a stepper
18:15 rue_shop mine uses a chain drive to a belt drive
18:16 Tom_itx but you don't want backlash on a rotary
18:16 rue_shop no mines pretty tight
18:16 Kimlaroux how is harmonic drive actually working?
18:16 Kimlaroux I mean, how do you mount the output shaft to the flexible inner gear?
18:16 Tom_itx fewer teeth on one part than the other
18:16 rue_shop the number of teeth on the inside and outside of two cups dosn't match
18:16 Tom_itx it's splined
18:16 rue_shop the inner cup is distorted to mesh with the outter one
18:17 rue_shop as the distortion is moved, the difference in tooth count causes the cups to slowly rotate relative to each other
18:18 rue_shop iirc the edge of the cup is whats distorted, the back is static to a plate
18:18 Tom_itx the cup is made to flex
18:18 rue_shop the wiki muse have soemthing about it
18:18 rue_shop 10 bits to 3 bits
18:19 rue_shop 7 bits shifted off
18:19 rue_shop hmmm
18:19 rue_shop meaning the lowest error it responds to is 128
18:19 rue_shop that dosn't work
18:20 rue_shop maybe I should go by highest set bit
18:20 rue_shop dont like the amount of time it sounds like this is gonna take to execute
18:35 rue_house so bitwise
18:35 rue_house 10 bits
18:35 rue_house value ranges
18:35 rue_house 1-1
18:35 rue_house 2-3
18:36 rue_house 4-7
18:36 rue_house 8-15
18:36 rue_house 16-31
18:37 rue_house 32-63
18:37 rue_house 64-127
18:37 rue_house 128-255
18:37 rue_house 256-511
18:37 rue_house and 512-1023
18:38 rue_house 20 entreis per muscle
18:51 rue_house i = 0; while (v>>=1) i++;
18:51 rue_house hmm
19:00 rue_house I has to start at 1, but ok
19:02 rue_house well thats as goo as I'll get in C
19:04 Kimlaroux Oh wow, you can "print" PCBs using a CNC
19:04 rue_house which method?
19:05 rue_house ok, hmm, so I need a rough map of movement amounts for errors of 1, 3, 7, 15, 31, 63, 127, 255, 511 and 1023
19:05 rue_house but, hmm
19:05 rue_house my systems movement is only from 146 to 847
19:06 rue_house which is over 512, so I need the whole table
19:06 rue_house ok
19:06 rue_house for load and unload conditions
19:07 orlok_ nugh.. got to sleep at around midnight.. bub woke up at 2:30am ish.. back up at 5am.. back to sleep at 6am... work called at 7am due to bonded ethernet failure of some gear in a phone exchange..
19:07 orlok_ but goddamnit she's cute.
19:09 home ?
19:09 orlok 1 month old baby
19:12 anx is jealous of o
19:12 zhanx but i am traveling tomorrow tdy to baltimore for a week
19:12 zhanx i win
19:15 rue_house I need values
19:16 rue_shop ok
19:19 orlok hmm
19:20 orlok i sdhould be able to solder wires up a DPI socket, and place that in between the chip and the socket it sits in, and use that to tap the CRO probes into, right?
19:20 orlok uhh
19:20 orlok DIP socket
19:20 orlok sop instead of chip going into socket, i have chip going into socket going into socket
19:20 rue_shop hu?
19:20 orlok and the middle socket has some wires soldered to it
19:21 orlok just wondering how to tap CRO probes into darlington array
19:35 rue_shop what you trying to find out?
19:36 rue_shop wow, hmm this data looks concerning
19:37 rue_shop a time value of 60 results in a step of .8 (average) adc units
19:37 rue_shop a time value of 70 results in an average step of 20 adc units
19:40 rue_shop 80 results in a movement of 69
19:43 rue_shop 90 results in 100 adc units
19:45 rue_shop and I'm calling 100 a movement of 130
19:48 rue_shop huh, its almost linear
19:49 rue_shop it should be, but I didn't expect it would be
19:49 rue_shop rise/run
19:50 rue_shop rise is position delta, run is solinoid on time
19:50 rue_shop rise is 130-0.8
19:50 rue_shop run is 100-60
19:51 rue_shop so ... 130/40
19:51 rue_shop 3.25 adc units for every time unit
19:52 rue_shop did I get the backwards?
19:52 rue_shop no, but the min time unit according to this
19:53 rue_shop is pretty darn close to 60
19:54 rue_shop ok now I need the same for unload
20:12 rue_shop yea the unload valve is much more trickey
20:13 rue_shop ok chart proves my unload valve is pooched
20:14 m_itx gives rue_shop a box full of door spr
20:15 e_shop puts in the scrap metal pile 'NO MORE STUFF
20:16 e_shop gets the springs back out of the pile, 'wait, I might need those
20:16 rue_shop 2 adc units for every time unit
20:17 rue_shop geez, those numbers are pretty reasonable
20:25 rue_shop / for errors of ~ 1, 2, 5, 10, 20, 40, 80, 200, 350, 700
20:25 rue_shop unsigned char load[] = {55, 60, 61, 64, 70, 74, 84, 100, 100, 100}; // dishwasher valve
20:25 rue_shop unsigned char unload[] = {35. 36, 37, 41, 49, 58, 60, 60, 60, 60}; // washing machine valve
20:25 rue_shop lets see how I do...
21:32 rue_shop // for errors of ~ 1, 2, 5, 10, 20, 40, 80, 200, 350, 700
21:32 rue_shop unsigned char load[] = {49, 49, 49, 50, 55, 65, 67, 69, 72, 85}; // dishwasher valve
21:32 rue_shop unsigned char unload[] = {35, 36, 39, 47, 48, 55, 65, 65, 65, 65}; // washing machine valve
21:32 rue_shop
21:32 rue_shop I should graph these
21:35 Tom_itx are the similar valves responding the same?
21:42 rue_shop no
21:42 rue_shop its really touchy
21:43 rue_shop I been bumping values up and down by 1 for hours
21:45 rue_shop int getAVal( int channel) {
21:45 rue_shop ADMUX = (channel & 7); // select channel
21:45 rue_shop
21:46 rue_shop did I screw that up?
21:49 rue_shop no
21:49 rue_shop hmm this is odd
21:53 rue_shop got it, I was waitng for hte wrong flag for the adc finish
22:01 Tom_itx a bit rusty?
22:06 rue_shop :)
22:06 rue_shop3 but I'll have you know this is working REALLY well
22:06 rue_shop3 its able to get the muscle to target in about 6 hits
22:06 Tom_itx good stuff
22:11 rue_shop the air unload has to be REALLY aggressive
22:14 rue_shop I thin the current limit is the rate that the air is forced out of the muscle from the force provided by the spring
22:14 rue_shop it seems to be a rate limit, its positioning really well
22:15 rue_shop (to the target unit)
22:15 rue_shop (300/1023) of a degree
22:15 Kimlaroux rue_shop, you're using washing machine valves? the ones for the input water?
22:15 rue_shop yes
22:15 e_shop stret
22:16 Kimlaroux for pressurized air?
22:16 rue_shop I'll make a video on ... tesday
22:16 rue_shop yes
22:16 rue_shop 60psi
22:16 rue_shop and I'm operating the valves on DC
22:16 Kimlaroux I didn't know you could do that...
22:16 rue_shop 80V
22:16 rue_shop "the book? geez, I threw that away..."
22:17 rue_shop they will respond to less than 10ms pulses
22:17 Kimlaroux I thought those valves needed water for lubrication
22:17 rue_shop na
22:18 Tom_itx rue's in charge of this project
22:18 rue_shop need a dig scope so I can plot the control and feedback positions
22:18 Kimlaroux and aren't those valves built as a single unit with two intakes and one out?
22:19 rue_shop yes, which is perfect for unloading air muscles
22:19 Kimlaroux lol...
22:19 rue_shop dishwashers have a single in, single out valve
22:19 rue_shop perfect for loading
22:19 rue_shop so, for two muscles I need one washing machine and two dishwashers
22:19 Kimlaroux woha, that's a lot of machines
22:20 Kimlaroux do you have all the valves for the mech yet?
22:20 rue_shop the mecha will have 47 axies, each with complimentrary muscles
22:20 rue_shop so 188 valves total
22:20 rue_shop no, I'm still collecting
22:20 mlaroux bli
22:20 rue_shop if you find any by the side of the road, please mail them to me :)
22:21 rue_shop I was thinking of starting a recycling centre for the sole purpose of harvesting the valves
22:21 Kimlaroux I have two set of 2in-1out valves on my laps right now
22:21 rue_shop :)
22:22 rue_shop I'll pay ya $2! for 'em!
22:22 Kimlaroux I dismantled a washing machine last month, got a box filled with stuff
22:22 rue_shop mmm goodies
22:22 Tom_itx it'll cost ya $25 and 4 months to get em
22:22 Kimlaroux lol
22:22 rue_shop hahah, I work like that
22:22 rue_shop I need to find 96 pots for the position feedback
22:22 rue_shop (redundant pots on each axis)
22:23 Tom_itx i got you some... what'd you do with those?
22:23 m_itx looks at poor buddy
22:23 rue_shop it IS after all a 12' mecha, have to be carefull
22:23 rue_shop I'm waiting to finish my etching tank repairs, remind me about that next week pls
22:23 Tom_itx still leaking ehh?
22:24 Tom_itx go steal caspers
22:24 rue_shop but the pots weren't suitable, so they went into stock, which also releaved the project of all that money I paid for them
22:24 Tom_itx err who did i send the other one too?
22:24 Tom_itx i forget
22:24 rue_shop jester
22:24 rue_shop :) he's offered it to me several times
22:24 rue_shop he never shows up with it tho
22:24 rue_shop he wants to go arduino now
22:25 rue_shop ok , well, I think this progress is great
22:25 rue_shop unsigned char load[] = {49, 49, 49, 50, 55, 65, 67, 69, 80, 100}; // dishwasher valve
22:25 rue_shop unsigned char unload[] = {35, 36, 39, 47, 48, 67, 90, 180, 250, 253}; // washing machine valve
22:25 Tom_itx you'd better catch him before he goes off the deep end
22:27 Kimlaroux rue_shop, http://imageshack.us/photo/my-images/46/frigidairevalve1.jpg/
22:27 rue_house Kimlaroux, have you seen the airmuscle setup?
22:27 Kimlaroux I've seen a pink muscle
22:28 Kimlaroux http://imageshack.us/photo/my-images/825/frigidairevalve8.jpg/
22:28 Kimlaroux those are the 2 I got
22:28 rue_house (and yes, there are a number of manifolded valves around)
22:28 rue_house !assist robots/sparrow1
22:28 tobbor Possibly http://eds.dyndns.org/~ircjunk/robots/sparrow1
22:29 rue_house http://eds.dyndns.org/~ircjunk/robots/sparrow1/p1030525-valvetest.jpg
22:29 rue_house blue valve is load, red vlave is unload
22:29 rue_house big heatsink thing is 80VDC power supply
22:29 rue_house avr on top breadboard
22:29 rue_house drivers on bottom breadboard (bipolar transistors)
22:30 Kimlaroux Best re-use of washing machines valves ever =P
22:31 rue_house I just need a lot mroe of them
22:31 Kimlaroux are those coils AC?
22:31 rue_house yes
22:32 rue_house I'm sorry, is there someting I'm doing like I should?
22:32 rue_house I was TRYING for all_wrong
22:33 rue_house tues maybe I can also plumb up the boiler
22:34 rue_house I got the ir baffle into the reactor