#robotics Logs

Oct 07 2012

00:06 katsmeow We processed 1,024,908,267,229 words of running text and are publishing the counts for all 1,176,470,663 five-word sequences that appear at least 40 times. There are 13,588,391 unique words, after discarding words that appear less than 200 times.
00:07 katsmeow File sizes: approx. 24 GB compressed (gzip'ed) text files
00:08 katsmeow damn, it's $150
00:11 katsmeow The cost of a Standard Membership for a for-profit, commerical entity is US$24,000 per year. Standard Memberships for Nonprofit and government entities costs US$2400.
00:23 rue_shop4 ok I resorted almost all the cmos chips
00:24 rue_shop4 katsmeow, but you say to someone "4 letter word" and only about 3 come to mind
00:24 rue_shop4 I HAVE A LOT OF STUFF
00:24 e_shop4 keeps peering up at the sh
00:25 katsmeow no, 4 word sentence fragments, not 4-letter words
00:25 rue_shop4 if there were an earthquacke it would take me about 2 years to just resort everything
00:25 rue_shop4 oh did you make a database of common word sequences?
00:25 katsmeow if there was an earthquacke, i'd dielaughing
00:25 katsmeow i have before, but i found a much bigger one
00:26 rue_shop4 I made a database like that from the irc logs
00:26 katsmeow i am evaluating portions of it now that i have found it for free instead of $150
00:26 rue_shop4 the data I was going for went all screwy, so I threw it out
00:27 katsmeow speel checking om irc wuld be horable
00:39 rue_mohr hmm
00:40 katsmeow Why do I fee fo many miffpellingf like "this" from poft-1800 Englifh bookf?
00:40 rue_mohr inferior quality work
00:41 katsmeow oh
00:41 rue_mohr the program I was working on would use its database to try to validate guesses and expand its database
00:42 rue_mohr it all went screwball and came up with piles of garbage
00:43 katsmeow i need to find 25gig of drive space just for the tgz'd files
00:44 katsmeow i don't recall having that much open space on any computer
00:49 tsmeow is poking rue over in
01:12 katsmeow 200,000 seconds to dl this file on my slowarsed dsl
01:13 katsmeow that's 55 hours, or 2.3 days
01:43 katsmeow "add water if_,_mixture brick_,_wrap in" makes no sense to me, why ae you wrapping bricks in anything?
01:46 katsmeow advocate horsepower-to-weight limitation on_,_car it_,_be
02:32 Jak_o_Shadows i've been tempted to do a simple mersenne twister on irc log files, except no channel that actually talks wants to allow my bot in it
02:34 Jak_o_Shadows Probably should just make it just reply all the command type stuff to me, rather than the whole channel.
03:17 rue_shop4 katsmeow-afk, sometimes you learn that most interesting things about what happens to old engineers
03:18 rue_shop4 I just found a record player motor speed controller chip on the motor control board of a photocopier
03:18 rue_shop4 the chip has a 33.5/45 rpm select input, that works...
03:24 rue_shop4 haha! I found the direction pin
03:40 rue_shop4 hmm this is crazy
03:40 rue_shop4 the
03:40 rue_shop4 motor sequencing is controlled by a chip
03:40 rue_shop4 its input is the 3 hall sensors and direction
03:41 rue_shop4 speed of the thing is controlled by a TL494 thats used as a pwm control on the output of the sequencer to control speed
03:41 rue_shop4 its regulated in analog with the record player chip
03:42 rue_shop4 the mixing is done with a ULN2003
03:42 rue_shop4 and there is a 3x half bridge driver for the motor
03:49 rue_shop4 this is a fine motor, but its not what I need for this project
03:49 rue_shop4 I cant do position control with it
05:10 rue_shop4 3am why is my brain still operating
05:47 sw0rdfish good morning all
05:47 Jak_o_Shadows hi
05:47 sw0rdfish or afternoon
05:47 sw0rdfish hey Jak_o_Shadows
05:53 rue_house !time
05:53 tobbor My watch says its 03:43AM Sun Oct 07 2012
05:54 e_house throws a blanket over sw0rdfish in hopes the noise s
11:31 IndianaRonaldo anybody have subscription on Robotica journal?
11:33 ace4016 nyet, but i think i have a subscription to IEEE robotics society
11:34 IndianaRonaldo oh okay..any idea who could possibly download one article for me?
11:36 ace4016 oh...not I
11:36 ace4016 what's the article about
11:36 IndianaRonaldo http://journals.cambridge.org/abstract_S0263574711000312
13:15 rue_bed hmm, what to work on today
13:15 rue_bed need to take some recycling in
13:16 rue_bed make a gearmotor for my arm
13:16 rue_bed I need to find a lathe
13:16 rue_bed I should get the avrs going for the reprap motor controllers
13:17 rue_bed and, after last nights encounter with that really eloborate 3 phase motor driver I'm interested in playing with a few others
13:17 rue_bed M55435 I think
13:20 tsmeow-afk hands rue a 7
13:22 katsmeow-afk what the heck, use a latch as as shift register, shuffle the 3 deadtime bits around in a circle of 3 or 4 chips
13:22 katsmeow-afk no freq limit there ;-)
13:23 katsmeow-afk "12 million steps per sec!"
13:23 rue_bed do you propose sequencing a 3 phase with a 74154?
13:24 katsmeow-afk a pile of diodes on it's output to each phase
13:24 katsmeow-afk feedbacks to the counter chip driving it
13:25 katsmeow-afk use 3 '154's would be easier, feweer diodes
13:25 katsmeow-afk personally, i'd use the latches
13:25 katsmeow-afk you could use '259's, if you wanna program a wakeup phase
13:26 rue_bed I thouhgt it was halarious last night to find a record player speed controller chip in a photocopier motor
13:26 rue_bed it literally has a 33.5/45 speed select pin
13:27 katsmeow-afk it's a speed controller, it doesn't know what it's in, you can always change a gear and make 33.333 be 16prm
13:27 rue_bed its a speed controller designed specifically for record players
13:27 rue_bed the enable pin is called play/stop
13:28 katsmeow-afk i seem to recall during disco some hits were released as 78rpm singles to DJs, knowing regular people could not play them, as a form of copy protection
13:28 katsmeow-afk i, naturally, could play them
13:29 rue_bed what was the 3rd speed?
13:29 katsmeow-afk i was also one of very few who had a variable speed cassette deck
13:29 rue_bed I do remember 3
13:29 katsmeow-afk 16,33,45,78 were the common ones
13:29 rue_bed I made a subliminal mod for my deck,
13:29 katsmeow-afk plus their fractions
13:29 rue_bed I was working on lucid dreaming
13:30 rue_bed it turned off the erase head and dropped the speed down
13:30 katsmeow-afk in tape, 15/16, 1 7/8, 3 3/4, 7 1/2, 15, 32, 64 ips
13:31 katsmeow-afk in pro copy setups we had freqs coming off the read head above 1.2 Mhz
13:42 rue_bed I think I slept about 9 hours
13:42 katsmeow-afk i think i didn't
13:43 rue_bed wonder if I should try putting the laundry on the line
13:44 tsmeow-afk gives the laundry a question and an ultim
13:44 rue_house it look skinda sunny out
13:45 tsmeow-afk puts the laundry on the line, cause there is that unused ethernet port, and the laundry could be smarter
13:47 katsmeow-afk <phone rings> "hello?" "honey, can you put the laundry on the line?" "yeas dear <drops phone into laundry>"
13:50 katsmeow-afk we need two space elevator tracks, one for lowering asteroids on a string, one for that string to pull things up on
14:03 ace4016 eh?
14:06 katsmeow-afk 2 million years from now, aliens land on earth and discover the humans all uploaded themselves to their puters during the nuke war of 2015, and as each puter's ai discovered the radiation killing it's harware, each was upoaded to a olde rad-hardened 286 in a fallout shelter under a Pacific ocean NASA tracking station island, which is running each "person" 1ms every year, and they all think it's still 2016
14:13 katsmeow-afk the aliens think this is great comedy, and decide to speed up the olde 286 with their multicore quantum puters, and have nightly showings of the "humans" trying to figure out how to get out of this mess they put themselves into, when they can't even detect they are software in a computer
14:16 katsmeow-afk <human scientist> there's a millisec time discrepancy that travels in a wave around the planet every day, but we don't know what it is or why
14:18 rue_house even time has propigaion delay
14:19 rue_house last night I found an LM3909
14:19 rue_house I'm so excited
14:26 katsmeow-afk <scientist> " experiments show that when the 1ms time event is in Los Angeles, a signal at the epeed of light arrives a ms late in one direction, and arrives just under a ms before it was sent in the other direction"
14:28 katsmeow-afk <scientist> we may be able to use this to build computers which output an answer before we type the question in"
14:29 rue_house microsoft will just make their OS so much more bloated that the computer would still seem to be slower
14:29 katsmeow-afk and the aliens watching this are all roflma
14:30 rue_house their not so concerned, this is just a watering hole
14:30 katsmeow-afk yeas, but with amusement
14:33 rue_house :)
14:33 rue_house what would you do if you were one of them accidently stuck here?
14:36 katsmeow-afk i'd decide that the drama of contact with 99.999% of humans isn't worth it, and go hide
14:38 katsmeow-afk [13:41] <katsmeow-afk> "yes Tiggr, i know "whence cometh the" is a phrase with high useage ratings, but they are all before 1900, no one has a clue what you are talking about now"
14:38 katsmeow-afk [13:42] <katsmeow-afk> "so you are saying people have no clue now?"
14:38 katsmeow-afk [13:42] <katsmeow-afk> "well....."
14:38 katsmeow-afk [13:50] <katsmeow-afk> <slippery slope ensues , leading to de-rating homo sapiens to homo idioticus, and subsequent eradication as a waste of time and resources>
14:38 katsmeow-afk [13:50] <katsmeow-afk> but it was all logical, i swear!
14:41 katsmeow-afk wait a minute, Superman can't fly at the speed of light in an earth orbit, the gravity isn't strong enough, he'd go flying off into space, he needs to be at the event horizon of a black hole to do that!
14:42 tsmeow-afk decides that movie was f
14:42 smeding he's keeping himself in orbit
14:42 smeding DUH
14:43 katsmeow-afk so he is expending 2x as much energy as needed, 1x to get up to speed, and 1x to stay in orbit?
14:43 katsmeow-afk this only works on a 286, why is no one else seeing this?!?
14:44 katsmeow-afk <cough>
14:44 katsmeow-afk bbl
14:51 rue_house now that I'v finished breakfst I can have lunch
14:53 rue_house katsmeow-afk, at some point, you need resources that you ahve to interact wth the humans to get
14:54 rue_house I wasnt to make the overload boards for buddy today, or get a start on them
14:54 rue_house and use leds to makea solar tracker
14:55 rue_house buddy needs all th motor drivers modified for the current detection too
14:55 rue_house that'll chew back a few hours
14:56 rue_house so I should stop buying driver transistors
14:56 rue_house I was clearing up in the shop a bit and the large drawr of "driver transistors" is FULL
14:56 rue_house and it dosn't even have the to-3's in it
16:22 katsmeow-afk i wonder if i can teach these cablebox psu to supply a steady 24v 24w at any input, from 24vdc/vac to 120vac/200vdc
16:31 katsmeow-afk there's a lot of words online about tomato blossom end rot, but i wonder if theproblem isn't simply that the blossom doesn't fall off, keeps the end of the tomato wet with morning dew collected there, and that's all it is
16:32 katsmeow-afk because there's no genetics of it, no chemical cure, no spray
16:34 katsmeow-afk i'm pretty sure if you pin a piece of cotton there, you'd have identical rot
18:16 rue_house ok I gave myself a todo list
18:17 rue_house I took the recycling in
18:18 rue_house gearmotor and reprap
18:49 rue_house reprap
18:49 rue_house needs coding, I'll do it tonight
18:49 rue_house hmm boiler
18:58 rue_house stepper vs brushless motor
18:58 rue_house in a brushless the current is varried to change the speed
18:59 rue_house the next step is not determined as an element of timing
18:59 rue_house found a lm3909 datasheet, I should build an led flasher
19:00 rue_house but I want to make the overload baords for buddy
19:03 katsmeow-afk i wanna stretch out on a warm heater under a warm blanket, but instead i am using a demo hammer to chunk up cold hardpan neolithic semi-rock clay under the house so i can put the 500 gallon tank of water for winter, and the pump
19:05 rue_house demo , cool
19:05 rue_house how many did you offer to buy if you like it :)
19:05 rue_house does the rock come up in layers?
19:06 rue_house can you drill a home and set a firecracker down in there?
19:06 rue_house push up an area
19:06 rue_house does the hammer help or hinder your back?
19:08 katsmeow-afk hammer helps
19:08 katsmeow-afk not directly, but the pick-mattock tears my back up way more than the demo hammer
19:16 katsmeow-afk [19:00] <katsmeow-afk> 1054020 Ada married Adam Gregory
19:16 katsmeow-afk [19:01] <katsmeow-afk> 1054046 Ada married Mr Perera
19:16 katsmeow-afk [19:01] <katsmeow-afk> 1054075 Ada married Alonzo Marcum
19:16 katsmeow-afk [19:01] <katsmeow-afk> 1054140 Ada married John Hume
19:16 katsmeow-afk [19:01] <katsmeow-afk> 1054173 Ada married James Work
19:16 katsmeow-afk [19:01] <katsmeow-afk> 1054225 Ada married William Courtenay
19:16 katsmeow-afk [19:02] <katsmeow-afk> 1054244 Ada married John Brown
19:16 katsmeow-afk [19:02] <katsmeow-afk> 1054268 Ada married Charles Neal
19:16 katsmeow-afk [19:02] <katsmeow-afk> 1054309 Ada Byron married Capt
19:16 katsmeow-afk [19:02] <katsmeow-afk> Ada was busy
19:16 katsmeow-afk [19:03] <katsmeow-afk> i mean besides inventing a programming logic/language
19:16 katsmeow-afk [19:03] <katsmeow-afk> i think the veracity of this db is blown
19:59 rue_shop4 that many guys she woulda been busy
20:00 Tom_itx ada was a busy girl
20:01 Tom_itx did she kill em all off?
20:43 rue_shop4 katsmeow-afk, jumping on the end of a 4' extension of an 18" pipewrench isn't turning the anode plug of this tank I have here, ideas for plan B?
20:43 rue_shop4 I already sprayed it over in WD40 and took a torch to it, no diff
20:44 Tom_itx how much heat?
20:47 rue_house small blow torch for about 4 mins
20:47 Tom_itx get it hotter
21:30 katsmeow-afk you want the plug cold and the piece it's threaded into hot
21:31 katsmeow-afk or, you bore it out and tap it 1 size smaller?
21:32 katsmeow-afk the gotcha is if you get it red hot, and twist it, the thin tank metal will give way first
21:33 katsmeow-afk something i have done is drill it, then drill it bigger, then bigger, till only the threads are left of the plug, then cut them across with a hacksaw blade, and pop them out with a screwdriver
21:34 katsmeow-afk you'll be at it all day long tho, and it may not seal against pressure because of the cut
21:52 rue_shop4 ok we adapter the gear
21:53 rue_shop4 its a 3/4" pipe plug
21:53 katsmeow-afk should be cheap steel then, easy to bore out
21:54 katsmeow-afk try this: drill it to 3/8, so a jigsaw blade fits it
21:54 katsmeow-afk then saw it in half
21:55 katsmeow-afk hit each half dead on sideways with a chisel to clear it fromt he threads
21:55 katsmeow-afk it should unscrew then
23:11 rue_house ah
23:11 rue_house if I dont hit the threads it should still seal
23:13 Tom_itx about time to get the boiler working again