#garfield Logs

Feb 18 2015

00:00 rue_more $2.50 at the auto store
00:00 katsmeow-afk i see a lot of stuff onthatseller that willnever sell
00:01 rue_more I dont know what my dresser cost me
00:01 katsmeow-afk on the otherpaw, i got 2 steel sporckets 1.25 bore, for #60 chain, two for $14, free s&h
00:01 rue_more oh thats right, so much floor space I keep all my clothes on shelvs in the closet now
00:01 rue_more (symbol hit)
00:02 rue_more ? not even a chuckle?
00:02 tsmeow-afk listens for noise from sym
00:02 rue_more I'm pretty good on the drums as long as I just relax and listen to what I'm doing and dont try to control anything
00:03 katsmeow-afk i are not in a great mood atm, discussion inoher channel,, basicly no one will help code, till i start coding, then peole show up just to prove they cando better, and make beter promices to fail at keeping
00:04 rue_more I'm in linuxhelp right now
00:04 rue_more trying to help myself cause nobody else is talking
00:05 rue_more I think I got it tho
00:06 rue_more YEA
00:06 rue_more I helped me good!
00:06 katsmeow-afk congrats!
00:07 rue_more I think I'm done the project (its for work)
00:07 rue_more its been killin me
00:07 rue_more thought it would be fun, but the client was all 'cmon hurry up, hurry up'
00:07 rue_more ugh
00:07 rue_more spoiled it good
00:08 katsmeow-afk what was it, before you started?
00:08 rue_more serves me for trying to make a work thing a home project
00:08 rue_more a building supplies store has a few service counters
00:08 rue_more and they used a doorbell to signal when they needed more people at counter A or B
00:09 rue_more it did two chimes, as most doorbells go
00:09 rue_more but they were failing repeatedly on them
00:09 rue_more they wanted a wired system that could do 4 chimes
00:09 tsmeow-afk notes the item page she bought lists the original sell price and not the sale sell price she
00:09 rue_more (2 added locations)
00:10 rue_more so I looked hard for a little sound player with 4 contact inputs, and to my surprize there seems to be no such thing
00:10 rue_more so I decided to take an arduino and some eeprom and put short sound clips on them and have it push them to a dac
00:11 rue_more talking to the cleints they said they would really like to be able to change the sounds, so I decided that using an arduino and a SD card shouldn't be much of a stretch
00:11 rue_more there is even a project out there that does almost exactly that
00:11 rue_more so I got allt he same parts and put togethor the project,
00:11 katsmeow-afk i think they called those "8-tracks"
00:11 rue_more but the code is HORRID and dosn't really work worth ****
00:12 rue_more AND none of the SD card thingles I was ordering from china were arriving
00:12 rue_more so, while I waited I wiried up the buttons for them (building prewiring)
00:13 rue_more and while I was doing that I mentioned that the LAST thing I wanted to do was use a PC to play the sounds
00:13 rue_more less than 4 mins later they piled me with prettymuch 3 micro pc's
00:13 rue_more really micro
00:13 rue_more I'v seen larger wallets
00:13 rue_more anyhow
00:14 rue_more I changed course and got a device build thats usb, and reponds to inputs 1 thru 4 with the characters 1 thru 4
00:14 rue_more debouncing and all the hell that comes with it
00:15 rue_more I put linux on one of the computers and have been beating my head against trying to get it to work right after a cold boot
00:15 katsmeow-afk moose accessories ==>> http://www.ebay.com/itm/Heavy-Duty-Press-Springs-1-5-inches-long-Lot-of-5-/400227533909
00:15 rue_more almost there
00:15 katsmeow-afk so the doorbell needs a wholecomputer, running nix, and custom code, to ring the door bell?
00:15 rue_more $30 for painted valve springs?
00:16 katsmeow-afk *for mooses*
00:16 rue_more katsmeow-afk, its 4 chimes, they can put in a usb card with new sounds on it
00:16 rue_more it'll autoload them
00:16 katsmeow-afk sounds more awesome the way i said it
00:18 rue_more did you give them 4 mooses of feedback?
00:19 katsmeow-afk i didn't buy springs, are you crazy? i canbuy 5 gallon buckets of tramoline springs for $5 at the recycler
00:19 katsmeow-afk i can waste all day pulling valve springs outa engines for prolly $2
00:20 rue_more mmm
00:20 tsmeow-afk points to the bucket of springs she was planning onexperiemnting with on the pontoon boat sail rig
00:21 katsmeow-afk still got springs, no got boat any more
00:22 rue_more ok I just hav to make an audio mixer and I'm goood
00:22 tsmeow-afk hands rue 4 resis
00:22 katsmeow-afk you KNOW soon as it's installed, they will ask for the front and back door be connected too?
00:25 katsmeow-afk the project i did for work started with 30 lines, and ended with 130 lines monitored
00:25 rue_more its not for doors
00:26 rue_more its a system to signal for more people at a particular area
00:26 rue_more chipping, sales, checkout, and paint
00:26 katsmeow-afk i know
00:27 katsmeow-afk they push a button, it makes a sound, they will wanna add more buttons, and hear more sounds
00:27 rue_more the subsystem can handle 8 easy
00:27 katsmeow-afk then, a mic and it becomes an intercom
00:27 rue_more I left the parts out
00:28 rue_more they are usually talking to a customer when they pusht eh buttons
00:28 rue_more aka, they are working with someone but a lineup is happening
00:28 katsmeow-afk ok
00:28 katsmeow-afk i give up
00:29 rue_more ?
00:29 rue_more me to, see if I cn get a few hours sleep
00:30 rue_more I have to make a mixer later to combine the sounds from this thing with the radio
00:30 rue_more goes over their PA speakers
00:31 katsmeow-afk implant a gumstix under their left shoulder, with a ribbon cable up to their ear and other brain sections
00:32 katsmeow-afk maybe their right shoulder
00:32 katsmeow-afk then all that stuff with the pa speakers cango wirelessly, and the customers never know what's going on
00:32 katsmeow-afk can do surpice flash mobbing
00:33 katsmeow-afk cueprize
00:33 katsmeow-afk sufaze
00:33 rue_bed heh
00:33 rue_bed no chnging direction, I'm almost done!
00:33 rue_bed http://img.sparknotes.com/figures/F/f7e679de478204744acb1c6f8d0d0f91/03.3.brainstructure.gif
00:34 rue_bed I dont think this is an interconnection diagram, I think this is a naming heirarchy
00:34 rue_bed I want an interconnection diagram
00:34 katsmeow-afk it's a mesh
00:35 rue_bed some parts do not directly interface with other parts
00:35 rue_bed I just dont know whats what
00:35 rue_bed I'm trying
00:35 katsmeow-afk 10 puters, 10 lan cables to each, and each puter connects one cable to a 10-port lan switch
00:35 rue_bed I dont think so
00:36 rue_bed I think some of hte puters have two interfaces
00:36 katsmeow-afk instead of 10?
00:36 rue_bed and some puters have to go thru others to get thru
00:37 rue_bed like the two optical cortexs aren't one, they go thru something
00:38 rue_bed cerabellum I think
00:38 katsmeow-afk then why does the optic nerve go all the way round back to the optic center?
00:39 rue_bed that is a good question
00:39 rue_bed you would think our eyes could just be in the back of our head
00:40 rue_bed I wonder what the signal latency is
00:40 rue_bed I also wonder what the bandwidth is
00:41 katsmeow-afk 6khz
00:41 rue_bed I hit my eye with the side of a peiece of wire today, I was not impressed
00:41 rue_bed why 6khz?
00:41 katsmeow-afk hit harder
00:41 katsmeow-afk sometimes, you must break the bone to leave a real impression
00:42 rue_bed it'd be impressive if I broke by eyeball bone
00:42 katsmeow-afk bio nerves are chemical, not electrical, they must physically move ions from place to place
00:42 katsmeow-afk molecules
00:42 katsmeow-afk not just electrons
00:43 rue_bed you think 6khz bandwidth tho
00:43 rue_bed then ther eis the fact that the intensity and colour detectors are seperate
00:43 tsmeow-afk nods,,, i think that i remember stashing that in my memory , but i can't find thememory it
00:45 rue_bed wouldn't a 6khz bandwidth insinuate that we should be able to see 60hz lamps really well
00:45 rue_bed or the averaging is further down the chain
00:45 rue_bed I know that focus and iris respond faster than the actual vision
00:45 rue_bed er iris anyhow
00:45 katsmeow-afk Speed of Nerve Impulses - hypertextbook.com
00:45 katsmeow-afk The speed of a nerve impulse varies with the type of nerve impulse the nervous system is sending. Some signals such as those for muscle position, travel at speeds up to 119m/s. Nerve impulses such as pain signals travel slower at 0.61m/s.
00:46 rue_bed long enough for me to think "oh, thats gonna hurt"
00:47 rue_bed pfm
00:53 katsmeow-afk The form of the motor response evoked at high
00:53 katsmeow-afk frequencies has features that suggest that frequencies above 10-kHz have
00:53 katsmeow-afk little or no useful clinical role in rehabilitation procedures.
00:56 katsmeow-afk The accelerating in-
00:56 katsmeow-afk crease in thresholds above 5 kHz presumably reflects
00:56 katsmeow-afk the decreasing sensitivity of nerve fibers. A decrease
00:56 katsmeow-afk in sensitivity at higher frequencies is predicted by the
00:56 katsmeow-afk capacitative nature of the fiber membrane 11 and
00:56 katsmeow-afk could also be influenced by the membrane ion-
00:56 katsmeow-afk gating time constants.
00:58 rue_bed hmmm
00:58 rue_bed saturation
00:59 katsmeow-afk Variation-in-Motor-Threshold-With-Frequency-Using-kHz-Frequency-Alternating-Current-Muscle-Nerve-2002- .pdf
00:59 rue_bed I was playing, pulse polarity makes a difference
01:00 katsmeow-afk my take on it is that above 5khz the nerves' individual repolarization time becomes a dominating factor in thetransmission speed, and at 6khz you begin to get signal blocking because the nerves cannot exchange ions fast enough , they are,essentially, confused and making non-signal noise
01:02 katsmeow-afk amplitude makes a difference too
01:03 katsmeow-afk just one of the many reasons to not model a robot ona human, you just do not need to waste $millions on slowing wire conduction speeds downto nerve speeds
01:07 katsmeow-afk til : figjam = Fuck I Am Good, Just Ask Me
01:49 katsmeow-afk Dissolved organic solids such as sugar and microscopic solid particles such as colloids, do not significantly affect the conductivity of a solution so a TDS meter does not include them in its reading.
02:25 katsmeow-afk Dr. Norman W. Walker, who wrote a book on this area of water, says that of a person drinks two pints of water a day in a 70-year life span, it will total 4,500 gallons. If it is not distilled, Dr. Walker estimates this water will include 200 to 300 pounds of rock, including lime, magnesium and other mineral deposits that the body cannot use.
03:25 katsmeow-afk which is odd, considering poele take calcium (lime) and magnesium pills
17:50 katsmeow-afk Dear moosellc1,
17:50 katsmeow-afk In the photo of the two sprockets, i was able to determine the sprocket
17:50 katsmeow-afk the
17:50 katsmeow-afk moose was not standing on is 1 1/4 inch bore. I assumed the other one was
17:50 katsmeow-afk same size bore, but could not measure it because the moose was blocking
17:50 katsmeow-afk the
17:50 katsmeow-afk view needed to measure. But the sprocket the moose is standing on is not 1
17:50 katsmeow-afk 1/4 inch, it's 1 inch. I cannot use it. I bought something i cannot use.
17:50 katsmeow-afk Since you did not state the bore size, i cannot much complain about it,
17:50 katsmeow-afk but
17:50 katsmeow-afk i will remember it. I already ordered a replacement from someone else for
17:50 katsmeow-afk this undersized sprocket you sold me.
19:31 Tom_itx the dir relays need to switch during the inhibit signal, i wonder if i should give inhibit a bit more time or if this looks ok: http://tom-itx.no-ip.biz:81/~webpage/cnc/temp/logic2.jpg
19:32 Tom_itx the 'out' is the actual relay output
19:32 Tom_itx not the coil
19:32 Tom_itx seems both relays switch in about 5 or 6 ms
19:34 katsmeow-afk i don't have enough data to say
19:35 Tom_itx the signals are shown
19:35 katsmeow-afk yeas, but i don't know what they do
19:35 katsmeow-afk what is inhibit inhibing?
19:35 katsmeow-afk what effect does DIR have?
19:35 Tom_itx as long as the dir relays switch during inhibit there should be no power going thru them
19:35 Tom_itx DIR changes the spindle motor from forward to reverse
19:36 Tom_itx inhibit disables the drive and puts it into a ramp mode to resume rpm
19:36 Tom_itx to protect it
19:36 katsmeow-afk ok, then i would say the inhibit should be as long as it takes for the spindle to stop turning
19:36 Tom_itx it just needs a short pulse to do that
19:36 Tom_itx no, it just starts the process
19:36 Tom_itx i can set the inhibit ramp with the driver
19:37 Tom_itx it will slowly increase drive to the motors
19:38 katsmeow-afk ok, i am only concerned that it's turing one way and you apply full power to turn the opposite, and it makes one huge current spike, you got that taken care of, but it's not in the jpg, so i didn't know
19:38 Tom_itx i realize that and it's also a concern of mine
19:38 Tom_itx i don't plan to switch it ever at full power
19:39 Tom_itx i also realize i _should_ take that into account anyway
19:39 katsmeow-afk if it matters, if you have time, and anotehr relay, shuntng the motor with a resistor or current sink can slow it very fast
19:39 Tom_itx tapping metal is done at a slow rpm
19:39 Tom_itx once the power is removed from the motor, the tap will help stop it
19:39 tsmeow-afk
19:39 Tom_itx and then it can reverse and back out
19:40 tsmeow-afk nods some
19:40 katsmeow-afk i had a dc motor on my baby drill press, and a reversing toggle, great for tapping
19:40 Tom_itx it won't matter if the spindle does it at exactly the same rpm because the axis is in sync with the spindle movement
19:40 Tom_itx so if the spindle doesn't move, neither does the axis
19:41 Tom_itx others that have done this didn't worry about the inhibit signal
19:41 Tom_itx so they sent extra amps thru their relays
19:41 Tom_itx during switching
19:42 Tom_itx i'm trying to take every precaution to prevent that
19:42 tsmeow-afk
19:42 katsmeow-afk no sense pushing the motors or relays or psu beyond their ratings
19:43 Tom_itx those dir relays are crap
19:43 Tom_itx look how noisy they are
19:44 katsmeow-afk i wonder if the sudden torque change while powered up others are doing is causing any damage to the work
19:44 Tom_itx i'm gonna hook the inhibit to the driver just by itself and see how the ramp reacts
19:44 katsmeow-afk relays are mechanical, they will bounce
19:44 Tom_itx no switching direction just yet
19:45 Tom_itx i dunno ^^
19:45 katsmeow-afk if you want noiseless switching, switch on an scr/mosfet and the relay at same time ,, turn the relay off a few ms before turning the mosfet off
19:46 Tom_itx no mosfets in that sample
19:46 katsmeow-afk i know
19:46 Tom_itx those are all relays
19:46 Tom_itx oh
19:48 Tom_itx i have a diode across the inhibit relay but i'm not too worried. it's switching at 5v and the drive signal can take up to like 28-32v
19:48 Tom_itx i'm just not using it at full voltage
19:48 katsmeow-afk k
19:48 Tom_itx i don't have 24v relays
20:29 katsmeow-afk alaforkingbama is fretting about how difficult it is to move students to where the data is when the weather is being inconvienent
20:30 Tom_itx inhibit works
20:30 Tom_itx just tested it live
20:33 katsmeow-afk imagine having to transport the entire state's population to the tv station to recite the news to them