#garfield Logs

Feb 23 2013

00:00 katsmeow-afk 100 ps2 for $30
00:00 rue_house it a good deal but I dont think you need 100
00:01 katsmeow-afk i don't
00:01 katsmeow-afk i'm somewhat short of 100 keybds
00:01 katsmeow-afk course, they would make ok serial plugs, but so do cat5 jacks
00:02 katsmeow-afk 20 for $10.42 free s&h
00:03 katsmeow-afk so i can save $21 by torching these 32 off the pcbs
00:03 katsmeow-afk + 12,, = 44 ps2 connectors
00:13 katsmeow-afk ok, yeas, propane torche is faster than a soldering iron, but the legs need cleanup from excess solder drippings
00:23 rue_house soldering gun and compressed air
00:23 rue_house make sure to wear goggles
00:25 katsmeow-afk too many pins, too far apart, 3 big ones on pcb copper flood fill
00:25 katsmeow-afk oh, you mean for cleanup, yeas
00:26 katsmeow-afk "why is all this solder embedded in the underside of this shelf?"
00:27 katsmeow-afk something is so wrong on this design, they switched the svga with 74HC4051 , which has a bandwidth of a few Mhz, and a resistance of 50 ohms, on a 75ohm 1v rf line
00:28 katsmeow-afk ditto the ps2 lines, i had to use resistances as low as 10 ohms before signal got thru, and they are using 4051 ???
00:32 katsmeow-afk i have some PI5L200, good for 135 Mhz,, good nuff for svga?
00:35 katsmeow-afk i have IDTQS3125S1 too, god for .... doesn't say
00:36 katsmeow-afk those are 4pole 5ohm versions of the 4066,, the PI# is a 4pdt tho
00:43 katsmeow-afk cannot use either of them, because while using them as 1:6 input switches sounds easy, each of the 6 outputs will have 16 chips feeding it, and 16 * 50 pf = 800 pf, which is horrible on a video line
00:55 katsmeow-afk This projects uses 8MByte SDRAM from a 168 pin DIMM SDRAM and generates videosignal for a VGA monitor with a resolution of 512x480 pixels with 256 colors at 60Hz using mega8515.
00:55 katsmeow-afk The project uses burst mode of SDRAM, which can feed up to 512 bytes without MCU help. This means that MCU can do anything (i.e. generate another graphics) during that time. 8MB SDRAM can be used to store up to 32 frames, so you can display one frames while generating another one.
01:31 rue_house at some point I was gonna make a kvm switch and got some video amps with a disable pin
01:50 katsmeow-afk too many amps needed
01:51 katsmeow-afk 16 inputs , 6 outputs
01:53 katsmeow-afk i've reduced the troublesome (high freq, bidirectional, or not_ttl) signal count to 12, so the switch matrix is only 1152 contacts
01:54 katsmeow-afk conincidently, the sync are ttl, which means i can switch them with plain ttl, and they'll arrive before the video gets switched, so the monitor will be sync'd already
01:56 katsmeow-afk so i are emulating six 14p16t switches , carrying i2c, 0.7v rgb video over 100Mhz, ttl signals, +5v, and gnd
02:34 rue_house its frustrating, people are almost throwing away ps2 kvm switches here
02:34 rue_house I forgot supper
02:34 katsmeow-afk i got 4 for $9
02:35 katsmeow-afk why are they throwing them away? don't they work?
02:38 rue_bed they dont want ps2 ones
02:38 katsmeow-afk why not?
02:39 rue_bed they use usb for everything
02:39 katsmeow-afk there are usb-ps2 adapters
02:40 rue_bed the level of consumerism is amazing
02:40 rue_bed I have 2 8 port ones
02:40 rue_bed no cables for them tho.. or power supplies
02:40 rue_bed I think iamturnip gets rid of 16 port ones almost monthly
02:40 katsmeow-afk ok,,,, do the kvm they WANT have 1 or 2 or 3 usb ports, and are they only for mouse/keybd, or are theu USB@ 800Gigamegasuperultraspeed?
02:41 rue_bed they have one usb port for keyboard, one for mouse, they re-emulate them to the computer ports, iirc
02:42 rue_bed so the computers dont know the usb devices were 'disconnected'
02:42 rue_bed kat, I'm going to fall asleep soon
02:42 katsmeow-afk that makes them pricier
02:42 katsmeow-afk the usb speeds for a mouse are totally stupid
02:43 katsmeow-afk or for a keybd
15:00 rue_house Lola8088, I'm forgetting something, what is it?
15:01 Lola8088 mmm... truck is done, you had students this morning...
15:02 Lola8088 I donno...
15:02 rue_house ok
15:02 rue_house well I'm gonna go get a propane bottle and ...
15:02 rue_house uh
15:02 rue_house exhaust seal
15:03 Lola8088 will you get a bag of dried green peas also?
15:03 Lola8088 1lb
15:05 Tom_itx pea shooter?
15:05 Tom_itx pea shooter machine gun
15:05 Lola8088 heh heheh hehe heh eh to go with the potato gun!
15:10 rue_house geen peas?
15:10 rue_house hmm
15:10 rue_house ok
15:10 Tom_itx i've never seen blue ones
15:10 rue_house this sounds like a challange!
15:10 rue_house > >
15:10 Tom_itx but dried?
15:10 Tom_itx seriously
15:10 rue_house hmm you might be right
15:11 Tom_itx i like fresh frozen peas though
15:11 rue_house yea, freeze dried ones suck
15:12 Tom_itx i heard we're gonna get another 8-14" next week
15:12 rue_house of wind?
15:12 Tom_itx got a couple days off i can't afford to take though
15:12 Tom_itx snow
15:12 rue_house your getting snow?
15:12 Tom_itx got too much to do and no time to get there
15:12 rue_house were getting spring
15:12 Tom_itx not right now
15:13 Tom_itx we got ~14-16" last couple days
15:14 Lola8088 Green ones, not yellow ones. You'll be shocked.
15:27 rue_house uh, supper right?
15:27 katsmeow-afk rue, good thing about ceramics in the winter: your students pay for the electricity they use, and it heats your house for free
15:27 Tom_itx damn router is acting up again
15:28 Tom_itx rue eat's supper?
15:28 Tom_itx maybe breakfast for supper
15:28 katsmeow-afk "it's going to be cold Tuesday, better set up to make another pour pot"
15:29 katsmeow-afk i can get sooooooo much more physical labor done on pain meds (for my back), if only i had a continual supply of them
15:45 rue_shop2 ok I phoned the supplier of the lathe to find outabout what happened to the parting tool holder
15:45 rue_shop2 next on the list..
15:49 katsmeow-afk did he tell you that you can make the parting tool holder, because you have a lathe?
15:52 katsmeow-afk when i bought my arc welder, ~25 yrs ago, i still remember the sales guy trying to sell me a set of wheels and handlbars and tool bins for it, and i just had to point out that i had a new arc welder, and could make all those things myself
15:53 katsmeow-afk he wasn't really pleased when he realised his error, and i could see his gears turning, and another look of error when he realised it would not have worked to sell me that stuff before i bought the arc welder
16:30 katsmeow-afk > The wire may not be sized on ampacity/allowable temperature rise. It may
16:30 katsmeow-afk > be for allowable voltage drop in the leads.
16:30 katsmeow-afk Maybe, lets see:
16:30 katsmeow-afk Awg20 is 10.1 ohms per 1000ft, or 0.1 ohms per 10ft, or 33mohms per 3.3ft, or 16milliohms if doubled as i suggested. At 3 amps, that's 50millivolts of drop, which is prolly insignificant for an unregulated supply feeding anything with regulators in it,
16:30 katsmeow-afk and you may have even higher voltage drop in the edge connector itself. For a 10v rms signal into 50 ohms, it's 4mv of drop (0.00004ths of the 10v signal).
16:30 katsmeow-afk If 50mv (at 3amps) or 4mv is a concern, i suggest not using an extension cable, because your coax
16:30 katsmeow-afk and pcb copper traces are even more lossy.
16:30 katsmeow-afk useless-kat
16:31 tsmeow-afk has built stuff where current mate
16:32 katsmeow-afk from microamps to 1200 amp circuits
17:16 rue_house katsmeow-afk, how do you make a parting tool holder with a lathe? he said that the one they wated to substitute (that I said no thanks) is no good and they dont have any of the ones that I ordered in yet
17:17 rue_house katsmeow-afk, yes the welding carts are stuipdly expensive
17:27 Tom_itx i shim a cutoff tool in my tool post
17:46 katsmeow-afk use the carriage as the bed of a mill, use the lathe chuck as a huge mill chuck, use other assorted metal cutting and grinding tools, make whole new toolpost if you wanna
17:47 katsmeow-afk some lathes had, as an accessory, a 90degree precision angle that bolted to the carriage and gave a milltable presentation to the lathe chuck,, you can make one of those too, cause you also have a welder :-)
18:13 rue_shop2 Lola8088, were we gonna make aluminum muffins, or go up somes?
18:14 Tom_itx aluminum muffins?
18:14 Tom_itx can you eat those?
18:38 rue_house no
18:38 rue_house too crispy
18:41 katsmeow-afk "best if eaten hot"
19:11 tsmeow-afk looks worried about being aboard this ship : http://www.boskalis.com/uploads/media/Cork_Sand___Long_Sand.pdf
19:24 Lola8088 rue_house, I've got Elijah.
19:24 katsmeow-afk can it be cured?
19:25 Lola8088 in about 17 years
19:25 Lola8088 give or take
19:25 katsmeow-afk you must have a lot of patience
19:26 Lola8088 katsmeow-afk, I think I do. Although, ask my daugher and she'll disagree. :o
19:27 katsmeow-afk multiple viewpoints and life expereinces, sad that humans don't have data interchange and normalisation routines
19:28 Lola8088 I think that's the beauty of the human experiance. I wouldn't want to be normalized in any way.
19:28 rue_house I need sleep
19:29 katsmeow-afk i mean "normalaised" in the data sense, making the data relavant to the known data terms
19:29 Lola8088 rue_house, Take a nap
19:29 katsmeow-afk don't take MY naps!
19:29 Lola8088 I understand. I wouldn't want that.
19:29 tsmeow-afk will sahre almost anything , but not
19:30 katsmeow-afk i don't understand, why would you not want data put into terms yo can understand?
19:30 Lola8088 katsmeow-afk, Because it's not understanding that makes things beautiful.
19:31 katsmeow-afk many fights due to misunderstandings were not beautiful
19:32 Lola8088 katsmeow-afk, Many wars fought and still... with out the dark, there is no light. I would be bored to death with out the experiance of pain and fear and discomfort.
19:32 katsmeow-afk tell it to these people : http://www.abc3340.com/story/21310948/mother-calls-bullying-a-problem-at-a-h-w
19:33 Lola8088 katsmeow-afk, You can point out the extremeities till the cows come home, there is still a need for pain and suffering for humanity to learn.
19:34 Lola8088 we don't seem to figure it out until our backs are against the wall, for some dumb reason.
19:34 katsmeow-afk then the human should be improved as the solution, not the situation be made more dire
19:36 Lola8088 Maybe it's always been dire. We don't really know. We weren't there. Maybe it's exponential and we are just to limited to see it.
19:44 Lola8088 rue_house, Where'd you go?
19:45 katsmeow-afk zhanx, where'd you go?
20:18 rue_shop2 ugh, the fire went completely out
20:18 katsmeow-afk passion is a fickle thing
20:19 rue_shop2 ok I'm waking up!
20:36 rue_house Lola8088, hello?
20:37 tsmeow-afk wanders
20:40 Lola8088 boo
20:46 katsmeow-afk how difficult is it to give an avr an ip addy of it's own on the lan?
21:18 Tom_itx katsmeow-afk where did you go?
21:38 Tom_itx so should i keep the motor and driver from the old washer?
21:46 katsmeow-afk great, exploder locked up, and i has no desktop
21:48 katsmeow-afk ok, got it bak
21:48 katsmeow-afk keep motor, wiring diagram, and motor capacitors,, save the valves for air/water muscles
21:49 katsmeow-afk save the springs
21:49 katsmeow-afk use the wash tub in the washer as a large planter
21:50 katsmeow-afk save the control console to put on the snow blower, so it can scrub the sidewalk and driveway and porch concrete in summer
21:51 katsmeow-afk save the sheet metal off the washer's sides to make electronics boxes with, like i do
21:52 katsmeow-afk save the power cord, and it's strain relief, they are heavier than most appliance cords
21:58 Tom_itx no room to store it all
21:59 Tom_itx and i'm loosing incentive to make stuff anyway
21:59 katsmeow-afk don't lose it yet!
21:59 katsmeow-afk was jus about to upload a pic'
22:01 katsmeow-afk http://designerthinking.com/images/KVM-16x6/DSCF3176mc.jpg
22:03 katsmeow-afk on the 3.5 tall by 17" wide back of a 19"rackmount, i can put 8 inputs in a groupe on each side (like the 6 are grouped on the right), and then centered on the back, i can put 6 outputs like the 3 there on the left
22:03 Tom_itx inputs and outputs for what?
22:03 katsmeow-afk plus a wallwart or other power input, fuse, and ethernet, and a few other jacks
22:03 katsmeow-afk svga
22:04 katsmeow-afk those black ones are db-15
22:05 katsmeow-afk then with the one kvm, i can switch all of Tiggr, scope cameras, security cameras, whatevers,, to monitors or cameras
22:06 katsmeow-afk err, or recorders
22:07 katsmeow-afk i took the artsy license to separate the inputs to the sides and lay them horizontally, and the outputs in the center and arranged vertically
22:07 katsmeow-afk this also makes wiring the switch matrix inside easier and shorter
22:08 katsmeow-afk that's an awefull lot of holes to do by hand
22:08 Tom_itx yep
22:09 katsmeow-afk 66 holes in the back panel just for the vga-mouse-keybd
22:09 Tom_itx i did my cnc box by hand as well
22:09 Tom_itx not as many holes
22:10 katsmeow-afk how did you do the lettering on the pendant?
22:11 Tom_itx cnc
22:11 katsmeow-afk ah
22:11 Tom_itx i was gonna get a proper pointed cutter but i used a center drill
22:11 Tom_itx that's why it looks so crappy
22:13 katsmeow-afk hard to see,,,, so mill it down and pointy-cutter new lettering in the depressed area? ...hmmm,,, mill it all the way thru, etch the words into pcb, and back-light them :-)
22:14 katsmeow-afk did you see http://designerthinking.com/images/DC_Lighting/DSCF3168mc.jpg ?
22:15 katsmeow-afk no bezels to hide mistakes in cutting the square holes for the leds
22:15 katsmeow-afk praps you should set up a small business doing small mill jobs, save my hands from all this work!
22:48 katsmeow-afk this one project will eat up my entire collection of female db-15's
22:48 katsmeow-afk even then, i need to scrounge 2 more
22:49 katsmeow-afk leaving me none to put on the C64
22:54 zhanx i spend 12 hours rigged to jump in the rain yesterday to step on the bird and the crew to said, sorry the pilot crew is out of flight time
22:54 zhanx thats what i get for being on the last lift
22:55 katsmeow-afk good practice for doing what you did tho
22:55 zhanx sure
22:56 katsmeow-afk fwiw, i found a near instant way to move a M1A1 or APC or dozer from transport ship in shallows up thru mud to a treeline, 300ft if need be
22:56 katsmeow-afk i dunno who to tell, or if they give a darn
22:57 katsmeow-afk <cough>
22:57 zhanx its M1A4g now
22:58 tsmeow-afk doesn't
22:58 zhanx weight diff
22:58 zhanx like 5 tons
22:58 katsmeow-afk i'll be lucky to get my own old M1A1 the way things are going <sigh>
22:58 zhanx i would sport one
23:00 katsmeow-afk anyhow, seems like the mil is still having a hard time moving heavy toys from landing craft to tree line, i think they wanna retire the big hovercrafts,, i have a solution
23:01 zhanx is it armored?
23:01 katsmeow-afk not really, but the stuff it delivers is as armored as yu want it
23:03 katsmeow-afk it goal, as i understand it, was to land an entire marine landing battalion in 8 hrs of dark , and the recurring gotcha was the size-cost-time in getting 1000's tons of toys from shoreline thru mud to the treeline where the ground is more stable for tracks and wheels
23:04 zhanx in 8 hrs?
23:04 zhanx try a brigade in 4 hrs
23:04 zhanx 4 battalions
23:04 katsmeow-afk no, the initial apc and dozer from shore to trees in 10 minutes
23:05 katsmeow-afk how it gets to the shore, which is the point they couldn't solve, is a stock problem with several good answers, so i gnored that part
23:05 zhanx k
23:05 katsmeow-afk the problem of boat-offloading-mudbeach-300ft-treeline was the problem
23:06 zhanx never done it
23:07 katsmeow-afk the solution is a series of linked 1ft tall hovercraft as wide as you want your roadbed to be, each craft has it's own fan power for compressed air, you shove it up onto the beach, as much of it as you want, then you sink the tail end where a LST/LSC can drop a roro ramp onto it
23:07 katsmeow-afk the lead hovercraft has a ramp, hit a button, it deploys
23:08 zhanx cool
23:08 katsmeow-afk cameras, remote guidance of the lead hover by someone in the APC, push the whole mess ashore and before it stops moving the lead apc can go, the dozer after that to bank sand, etc
23:09 katsmeow-afk it canbe loaded and ready to deploy 300ft of it in some existing roro landingcraft
23:10 katsmeow-afk the rear door of the big roro carrier drops, and any amount of existing followup roro drive thru
23:10 zhanx think my spray foam is dry? sprayed it 4 hours ago in 72c
23:10 zhanx er 72F
23:11 katsmeow-afk the key is that runup of 1ft tall hovers tho, all it is is a roadbed floating on air
23:11 zhanx what is the power for it?
23:11 katsmeow-afk get as far up as you want, killt he air, and drive on it
23:11 zhanx JP8 engines?
23:11 katsmeow-afk diesel fans, same as normal, got them in stock
23:11 katsmeow-afk jp8 is cool
23:11 zhanx sorry diesel
23:11 zhanx yep
23:12 katsmeow-afk the beauty is many: cheap, fast, low, no stopping during deployment, re-sizeable, and re-useable
23:13 zhanx patent it
23:13 katsmeow-afk cannot patent something the amy wants to use, they'll use it anyhow and not pay on it,, and besides i cannot afford a patent
23:13 zhanx the keyboard on this computer is going out
23:13 zhanx have to pound the keys
23:13 katsmeow-afk quit standing on it, or lettingteen boys use it
23:14 zhanx you know i am had on stuff... oh get this.. last night
23:15 zhanx I was on chute issue for a while and a member of the black panthers in the army step up to my face a 3am talking crap, its 3am i am too tired to care
23:15 katsmeow-afk the civilian black panthers?
23:16 zhanx i made him mad cause i was like umm sorry your breathe stinks i out rank you and i am too tired to deal with your racial bullshit
23:16 zhanx he is in the army
23:16 zhanx but has the tattoo on his neck
23:16 zhanx call me out the whole none yards
23:16 zhanx nine
23:17 tsmeow-afk is holding her br
23:18 zhanx my buddy next to me is my EOL, (Equal Op Leader), I am an EOA (Equal Op Advisor), was black also fell off his chair laughing after he pushed me and called me a cracker
23:18 katsmeow-afk heh
23:18 zhanx i just called the mp's
23:18 zhanx i was 28 hours at that point, didn't want to hurt a kid
23:19 katsmeow-afk and........
23:19 zhanx it was funny they showed up and he got right in my face and did the fake punch, so i leveled him
23:19 zhanx monday i testify at his hearing
23:20 katsmeow-afk against him, i hope
23:20 zhanx 9 witnesses of his racism
23:20 katsmeow-afk ouch
23:20 zhanx 0 of me touching me
23:20 zhanx er him
23:20 katsmeow-afk good
23:20 zhanx everyone said he fell
23:20 katsmeow-afk i'd fal too if you didn't hit me like that
23:21 zhanx i didn't attempt to break him, he thought he was tough is all
23:22 zhanx just tossed him back over a bench about 10 feet with the hit
23:22 katsmeow-afk but going around starting fights is bad behavior
23:22 zhanx true and at the time of the morning no one cares anymore and i was the only white guy there
23:23 katsmeow-afk i did the same to a cop once, he kept getting in my face telling me i was under arrest, he flew over parked cars and landed in the street on his butt, then he left me alone, i wasn't out to hurt anyone
23:23 zhanx rarely do i go out to look to hurt someone, it just happens
23:23 katsmeow-afk he wasn't that large, but he thought he was
23:24 zhanx i don't think at 6
23:24 zhanx 6'4" 250 i am big
23:24 zhanx my family is bigger etc
23:24 katsmeow-afk at the dentist office, i arrived, they were still closed for lunch, redneck kids, with barbed wire neck tats, ran up and tried to barge thru the locked doors, then tried to tellt he time on the clock,
23:25 katsmeow-afk they both got it wrong, their mom came up and corrected them, she got it wrong also
23:25 zhanx lol
23:26 katsmeow-afk kids were 4ft or taller, barbed wire neck tattoos, could not tell time from a clock
23:26 katsmeow-afk and humans here think i am not even that good
23:26 zhanx had to count to 998 last night so i layed out rows of 100
23:26 zhanx everyone was like why 10 rows
23:26 katsmeow-afk 998 whats?
23:27 zhanx chutes
23:27 zhanx 4000 jumped out of 4998
23:27 zhanx i got stuck counting the non jumped chutes
23:27 katsmeow-afk oh
23:28 katsmeow-afk i guess they wanted a correct number, or they'd get a black panther to do it
23:28 zhanx no he was in jail by then
23:29 zhanx he actually yelled black power as they took him away
23:29 zhanx i was like wow
23:29 katsmeow-afk was he drunk, stoned?
23:30 zhanx no clue
23:30 zhanx too tired at the time to care
23:30 tsmeow-afk inserts her latest pics of trial test panel layouts : http://designerthinking.com/images/DC_Lighting/DSCF3168mc.jpg http://designerthinking.com/images/KVM-16x6/DSCF3176mc.jpg
23:32 katsmeow-afk 22 db15 vga jacks, 44 ps2 jacks for keybd and mice
23:35 zhanx why?
23:36 katsmeow-afk 16 in, 6 out kvm
23:37 zhanx k
23:39 zhanx suppose i should check my drum heads
23:39 katsmeow-afk i figured i needed a 12 in , 4 out, and for a few more jacks and other parts, 16x6 was just as easy,,, but any more would have gotten tougher
23:39 zhanx k
23:39 katsmeow-afk i need the ps2, even if everyone else is buying usb
23:39 zhanx i did the same with my mux worked out to more than i needed but easier than less
23:40 katsmeow-afk and i use only vga, even if everyone else is buying hdmi anddvi
23:40 zhanx i use vga and hdmi still
23:40 katsmeow-afk yeas, it's like why face possibly building a 2nd one if building the firstone would cover it
23:41 katsmeow-afk the problem with a 2nd kvm is also all the 1:2 splitters needed
23:42 zhanx be back in a bit my foam is dry
23:42 katsmeow-afk plus, after seeing the insides of a Belkin 16:1 , i didn't want to use that technique to mux svga around
23:42 katsmeow-afk k
23:58 zhanx well 90% dry
23:58 zhanx so i cut out major sizes
23:59 zhanx will have to trim later