#garfield Logs

Jan 23 2015

00:10 euKat or tristating the buss drivers for the drives?
00:35 rue_bed no
00:36 rue_bed you should onyl need to disconnect the data lines
00:36 euKat and why not?
00:36 euKat but usb is only 4 wires anyhow
00:36 rue_bed they have a pullup that is the prescence detect
00:37 rue_bed and then the connect seqence is rihgt
00:37 rue_bed today was something of a failure, I'm frustrated...
00:38 euKat so you are saying i cannot tristate the drivers or physically change the connectionswith micro relays?
00:38 rue_bed sure
00:38 rue_bed I dont know if it woud work
00:39 rue_bed I suppose 4066 would work for the data lines too..
00:39 euKat can you tellme why it mightnot work, if i keep lines equal lenght and no stubs?
00:39 euKat 4066 has too much capacitance for even good audio, it's swamp the usb signals
00:40 rue_bed I dont know if the power/data conect sequence is to protect the chip or make it detect nice
00:40 rue_bed how about a video grade switch?
00:41 euKat video doesn't run at 3Mbps or 6Mbps
00:41 euKat well, itmight hit 3
00:41 rue_bed I wonder if usb would get annoyed at contact closure noise, I uppose it cant be worse than a pushin connector
00:41 euKat i have a small handfull of video switcher chips
00:41 rue_bed cool
00:42 euKat right, and the Osdoes the auto-detect,, delayedwrite would be ahuge issue tho
00:42 rue_bed it would probably work, it seems most things do
00:42 rue_bed pls pardon if I nod off
00:42 euKat atm, all my drives are pats, and that's a dogawfull amount ot pinstoswitch, and over half are bidirectional
00:42 euKat pata
00:43 rue_bed I kinda subscribed to make a 4 recording wav player for a building supplies store and the SD card <-> arduino thing is nothing but grief
00:43 rue_bed and all the wav libraries I can find are crap
00:43 rue_bed so I rewrote one but I cant get the sd card to work
00:44 rue_bed 2 of the 3 sd card adapters I got didn't arrive, I dont know if the one I have is faulty or if its just the arduino code
00:44 rue_bed ARG
00:44 euKat i know that's fustrating as hell
00:44 rue_bed I should just take a damn comouter , put linux on it, and use the flipping parallel port to trigger playing the wav files
00:44 euKat how do we get ingo these situations?
00:45 euKat use a BasicStamp ;-)
00:45 rue_bed because someone needed help, there was no product available thats just off the shelf, and it seemed easy
00:45 rue_bed ya know, I have a stupid arm board around somewhere
00:45 rue_bed runs linux
00:46 rue_bed I been stalling (with the other SD boards not arriving) but I only have a week left now
00:46 rue_bed arg
00:46 rue_bed arduino is a nightmare of crappy code
00:47 euKat glad i didn't bother with it then
00:47 rue_bed pls tell me I told you about the library
00:47 rue_bed the wav library
00:47 euKat i'm *sure* id's have to mod it to make it do what i wanted anyhow,, just the avr onit would have been enough, mostly
00:48 euKat you told me the code for the sd was screwey, and the wav code padded the signal with garbage
00:49 rue_bed the idiot changed the volume not by dividing the samples, but by clipping them
00:50 rue_bed it has 5 sample rates, it uses an approximation
00:50 rue_bed aka, use 7khz sample rate if the sample rate in the file is under 9khz
00:50 Kat bl
00:51 euKat 7khz samlng is only good enough for phones
00:51 rue_bed phones use 8 :)
00:51 euKat right
00:51 rue_bed which I was thinking, must have a 3db of 4khz
00:51 euKat so the wav filessondlike anamplified telephone?
00:52 rue_bed no, they come out like static garbage
00:52 euKat oh
00:52 rue_bed static thats roughly guided by the wav file
00:52 rue_bed the file is read in 512 byte chunks
00:53 euKat well, worst case, clock a 74xx269 into a eprom of direct sampled audio,, and from the eprom into a dac
00:53 rue_bed the last incomplete chunk isn't played, its just discarded
00:53 rue_bed like the direct synth pwm, but I dont have large enough memory chips
00:53 rue_bed for the sounds
00:53 rue_bed its door bell chimes and stuff
00:54 Kat
00:54 rue_bed and they would like to be able to put their own wav files on it
00:54 rue_bed arg
00:54 rue_bed it dosn't even need 512 byte buffers, the cards max latency is 4 samples
00:55 euKat many many yrs ago, i figured n using 14 bits for the audio, and the last 2 bits for setting the gainf the audio amp, and toggling the bitrate
00:55 rue_bed mmm
00:56 euKat ram useto cost a small fortune, cutting the bit rate at times would have doubled my useable space
00:56 rue_bed indeed
00:56 euKat like at the tops of the sinewaves, and during any silence
00:57 euKat a computer cold have been used to repeat stuff, likeone chime repeated, instead of sampling two chimes
01:06 euKat yo canrepeat the same chime forever, especially if yo save i andoverlay them at differentvolumes and speeds
01:06 euKat my paws are going to crash before i do
01:08 euKat "Legend of a Mind"
01:08 euKat that is one song i have always wanted to hear in 4 (or 6) channel surround sound
01:24 euKat i goto bed, gnites
13:18 katsmeow-afk http://www.theatlantic.com/technology/archive/2015/01/why-i-am-not-a-maker/384767/
18:39 katsmeow-afk end mill description on ebay : Brief outward , lively, unique, distinct.
19:26 katsmeow-afk no, actually, Mr Robideaux does not pronounce his name like "rubber ducks"
19:39 tsmeow-afk imagines 6 well dressed robots on stage, playing the 17+ minute version of In-A-Gadda-Da-Vida with all the fury it dese
19:44 katsmeow-afk can you imagine going into a fast food resturant, and they are still playing the same song when you leave as when you went in?
19:48 katsmeow-afk http://www.ebay.com/itm/5-Pcs-1-4-PT-Male-Thread-to-6mm-Hose-Barb-Brass-Straight-Coupling-Fitting-/231084764192 5 for $4.38 free s&h china
19:49 katsmeow-afk 88 cents each,, can Tom cnc his lathe to cut those out of plain brass bar stock? And make money selling the turnings back to the brass company?
19:50 katsmeow-afk make them outa some tough plastic? Aluminum? steel?
19:55 tsmeow-afk looks at the new Tom and wonders if he saw a word she
20:02 Tom_itx haha
20:02 Tom_itx i used to make such fittings on a bar machine
20:02 Tom_itx form cutter
20:02 Tom_itx noisy as shit
20:02 tsmeow-afk
20:02 Tom_itx half round drills for the holes
20:03 Tom_itx iirc it was 1/2" hex brass
20:03 Tom_itx don't remember now
20:03 katsmeow-afk surely it's profitable?
20:03 Tom_itx not for me
20:04 katsmeow-afk turn it on, goto bed, wake up and they are done and laying in a box?
20:04 Tom_itx somebody has to feed the bar in
20:04 Tom_itx those eat bar like crazy
20:04 katsmeow-afk any servo'd ram can feed the bar
20:04 Tom_itx 12' x 6 maybe 1/2 hr
20:05 katsmeow-afk 20" lengths, eat one a nite
20:05 Tom_itx 6 bars
20:05 Tom_itx err yeah 20'
20:05 Tom_itx i ran 1" round bar too
20:05 Tom_itx heavy shit
20:05 katsmeow-afk ok, but you won't sell more per day than it can cut in one nite, unless you get a equipment oem to buy from you
20:05 Tom_itx it's not worth it for me
20:06 katsmeow-afk so feeding isn't really an issue, eat one bar per nite
20:06 katsmeow-afk k
20:06 Tom_itx 1 bar per night isn't profitable
20:06 Tom_itx we ran a whole skid a night
20:06 katsmeow-afk sell em for $1 each fitting?
20:07 katsmeow-afk they are $2+ each plus s&h on ebay
20:07 katsmeow-afk unless you get them from china
20:07 Tom_itx you need barb fittings?
20:09 katsmeow-afk well, trying to talk myself into "john guest" fittings atm
20:09 Tom_itx then you gotta spin the oil outta the shavings or they don't want em
20:09 katsmeow-afk in qty the price is about the same, once i figure in hose clamps and leaks
20:10 katsmeow-afk chuck the bag in the lathe, spin the oil out, next problem?
20:10 Tom_itx i got a barb fitting on my compressor with no clamps
20:10 Tom_itx 170psi
20:10 katsmeow-afk air leaks don't make as big a mess, these will have water
20:10 Tom_itx it doesn't leak
20:11 Tom_itx i don't remember where i got em but they said it required no clamps
20:11 katsmeow-afk if it does, i am concerned, i'd wanna hose clamp it
20:11 katsmeow-afk heck, having even air in it at 170psi and suddenly blow off my cause a heart attack because of the noise
20:12 katsmeow-afk you jump, get sleeve caught in work on the lathe, end of your arm
20:13 Tom_itx it's been that way for at least 20 yrs
20:13 katsmeow-afk ok
20:21 katsmeow-afk there must be a legal stimulant besides coffee and red peppers, easily available in stores
20:21 katsmeow-afk i just cannot find it
20:22 Tom_itx rue likes tea
20:22 Tom_itx i do sometimes
20:32 tsmeow-afk ponders threading the inside of the pump outlet for a 1/4
20:32 Tom_itx what is it currently?
20:32 katsmeow-afk i forget, but it's big, way big for a measley 4gallons per minute
20:32 Tom_itx if it's potmetal or alum it could split it with a NPT
20:32 katsmeow-afk err, 1 gallons per minute
20:33 katsmeow-afk it's plastic, i'll keep pressure under 60psi
20:33 Tom_itx ace has plastic barbs
20:34 tsmeow-afk
20:58 katsmeow-afk i are going to reset the router upstairs, bbiaf
21:10 Tom_itx wb ms meow
21:11 katsmeow thanks
21:12 tsmeow put a lil water into the empty horseradish jar, swished it around to pick up all the leftovers in the jar, and poured it into the soup,, and now the soup really has a
21:12 Tom_L i grew that in my garden one year
21:12 Tom_L was rather sweet actually
21:12 Tom_L much better than store bought
21:13 tsmeow
21:14 katsmeow oh yea, resetting the modem solve my "download throttling problem of the day"
21:32 e_shop3 tries not to be so as
21:33 katsmeow today's news: local schoolbus ; kids acting up in the rear of the bus, so the drivers lays the bus down beside the road and tells them exit the bus
21:34 rue_shop3 hmm, did the company charge him for the paint job?
21:35 rue_shop3 imagine having to drive around ~40 hyper, screaming kids for 2 hours, twice a day, 5 days a week
21:35 rue_shop3 its a hard job
21:35 katsmeow it's gonna need a lot of paint, the side of the bus got wrinkled
21:36 katsmeow the kids should be quiet and still, install restraints , most of the noise is to cover whatever the bullies are doing to someone on the bottom
21:36 katsmeow if it is a hazard to driving (and it IS) , then cut it out
21:47 Tom_itx rue_shop3
21:48 rue_shop3 Tom_itx,
21:48 Tom_L http://www.soigeneris.com/Document/Gecko/Using_the%20Gecko_G540_VFD_Output.pdf
21:48 katsmeow http://www.policestateusa.com/2014/fbi-fakes-article-to-distribute-spyware/
21:48 rue_shop3 hah
21:49 Tom_L i think i can control my default spindle drive with an industry standard 10v signal
21:49 rue_shop3 so the gecko has fbi spyware eh?
21:49 rue_shop3 0-10V? not 5-20mA?
21:49 tsmeow ponders the FBI using Tom's mill spindle speed to open his garage
21:50 Tom_L did you see where the military is going to hire druggie geeks that can't pass the physical to fix their hacker problems?
21:50 katsmeow yeas, bout damned time
21:50 katsmeow someone sitting at a puter all day for years learning to hack is not going to pass anyone's physical
21:51 Tom_L http://www.electronicproducts.com/Programming/Software/Military_may_drop_fitness_requirements_to_recruit_top_basement_dwelling_ponytailed_hackers.aspx
21:52 Tom_L kat maybe you should apply
21:52 Tom_L not that you fit that description...
21:52 Tom_L but you are good with puters
21:53 katsmeow i haven't been hacking into other people's puters tho, and that's what they want
21:54 Tom_L mkay
21:57 rue_shop3 ok, this cat toy is was beyond my patience to watch print
21:57 rue_shop3 my new pcb holder clips work
21:58 Tom_itx so i need a board with analog out
21:58 Tom_itx and i can have speed control for my spindle with encoder feedback
21:58 Tom_itx and i probably could use a relay to reverse it
22:00 Tom_itx once i get the control completed i will persue it
22:00 katsmeow use a low-pass RC filter on an avr's pwm outout, then an amp to give it the 10v you need?
22:00 Tom_itx one thing at a time...
22:00 Tom_itx i'll probably use one of the mesa boards for it
22:01 Tom_itx since they tie in with the cnc control software seamlessly
22:01 m_itx goes to kick back a w
22:57 rue_shop3 cat toy worked
22:57 rue_shop3 well, it assembled anyhow
23:11 katsmeow y> ping fload 4 minutes remaining, wow it just hit ~145KB/sec
23:11 katsmeow y has know idea haw "pink floyd" came out as "ping fload"
23:26 rue_house is it not plausable that a person will have to make about 76698 meals in their life?
23:26 katsmeow not if the housekeeper does it
23:26 rue_house for the rest of us :)
23:26 katsmeow hence, robots, save y the time of making 76698 meals
23:28 Tom_itx ok i got the fwd rev problem solved
23:28 rue_house well, if I had to make 77000 meals, I'd think it would be worth making a robot to do it
23:28 Tom_itx dude is sending me a board he doesn't need
23:28 rue_house hah! the cats playing with the toy I printed
23:28 Tom_itx with analog out ofr speed
23:28 rue_house cool
23:28 rue_house yoru machine back up then?
23:29 Tom_itx you tryin to poison your cat with toxic plastic?
23:29 Tom_itx not yet
23:29 rue_house nope, pla
23:29 Tom_itx but all the parts are coming together
23:29 rue_house cool
23:30 Tom_itx http://www.cnc4pc.com/Store/osc/product_info.php?cPath=25&products_id=58
23:33 katsmeow i am having no luck in chrome or ff to dl the movie at http://video.pbs.org/video/2326108547/
23:36 rue_house they lost it already
23:36 rue_house does that maen I print antoehr one?
23:36 Tom_itx put a bell inside the next one
23:36 rue_house one day I find a whole pile of 3d printed toy cat balls in a corner?
23:36 rue_house I had a little rattle in it
23:38 katsmeow no, you will find one each time you move something
23:42 rue_house if a person duplicates themselfs on a mechanical platform, and later down the road, the biological version has a severe medical problem that the mechanical version helps to try to fix, and the biological version dies in the process of, does that make it scuicide or a fatal-nonfatal-self-injury?
23:44 Tom_itx a conundrum
23:45 Tom_itx if duplicated accurately, the copy would have a similar flaw
23:46 rue_shop3 mechanical, not biological
23:47 rue_shop3 both running the same conciousness
23:47 rue_shop3 on different hardware
23:47 rue_shop3 same mind
23:47 rue_shop3 heh, the printer is making me a plate of pcb holders, looks awesome
23:47 Tom_itx duplicate is an exact copy by definition
23:49 katsmeow it's going to take 3 hrs to watch this 50 minute video because of the pauses