#garfield Logs

Aug 28 2013

01:01 any92572396 really, what logic chip you can buy today runs as slowly as 70ns?
01:01 any92572396 enunciation matters, emolating someone is not like emulating them
01:02 any92572396 or immolating them
01:04 y92572396 ponders someone filling up the disk cache card in a 8086 computer with those VITESSE-V104J3
01:14 e_house tries to find batteries for his t
01:14 rue_house http://www.aliexpress.com/item/Free-Shipping-26650-3-7V-Rechargeable-Battery-5000mAh-for-LED-Flashlight-1000-Cycles-AA-26650-li/1076019089.html
01:14 rue_house hmmmm
01:15 y92572396 hmms sideways a
01:16 any92572396 Size: diameter of 26mm a high degree of 65mm
01:16 any92572396 The internal resistance of:: less than 18 milli-Europe
01:16 any92572396 can't argue with them on that point
01:16 rue_house the two sizes of interest are 18650 and 26650
01:17 rue_house but I have to sample them to find out the real capacity
01:17 any92572396 A length of the: of approximately 6.8CM
01:17 any92572396 A diameter: of approximately 2.6CM
01:17 any92572396 so it's a D cell ?
01:17 rue_house till then I dont know what the real value is
01:17 rue_house the 26650 should be about 26mm x 65mm
01:18 rue_house I dont know what that makes it
01:18 any92572396 they plainly state you can use it in an electric car : as the the power storage of the storage battery car,
01:19 rue_house hehe
01:19 any92572396 26650 Li-ion battery have been the of the length of the "Fertility EDITION (SFI)" <<== so i guess it works in vibrators too
01:19 rue_house I noticed these too
01:19 rue_house ...
01:20 rue_house http://www.aliexpress.com/item/26650-battery-holder-d/867335204.html
01:20 any92572396 hmm, loks like battery heaters and exploders
01:20 any92572396 i'd think you need ventilation tween the cells?
01:21 rue_house yea, but if they are makign them, then that probably what people are making packs of
01:21 rue_house I'd like water cooling pipes threaded thru the pack
01:21 any92572396 ah, they make only 2 and 3 holes, you snap them together to make bigger
01:22 rue_house yup
01:22 any92572396 so you can make a 1-wide 50-long if you like
01:22 any92572396 but you can do that anyhow, it's called a 3/8 cpvc pipe
01:22 rue_house they dont seem to recommend more than 4s (4 series)
01:22 rue_house :) I was saying I'd buy them, I was saying that they make them
01:23 rue_house if I can follow the crowd, I can take advantage of their volume discount
01:23 y92572396 ponders rue piping cooling oil thru the pipes the cells ar
01:24 any92572396 $4.3 per cell is a good deal?
01:24 rue_house I have to do it by cell storage
01:25 rue_house but they lie on the Ah, so i have to get samples to know the true value of any battery
01:25 rue_house the ones I got were $0.40/Ah spec, read was $1.5/Ah
01:25 any92572396 well, slight derating to 3v under load and 4 amps, that's 12ah per cell
01:25 rue_house read/real
01:26 any92572396 i had some 4ah nicads, they did 4ah too, but they didn't last a year
01:26 rue_house so I'm buying more cells, different ones
01:27 any92572396 http://www.aliexpress.com/item/Free-Shipping-26650-3-7V-Rechargeable-Battery-5000mAh-for-LED-Flashlight-1000-Cycles-AA-26650-li/1076019089.html <<== saying it's more than 12Ah in a AA cell
01:27 rue_house I think if all the Nicads and NiMh in the world had been treated as nice as Li-ion, they would still be around
01:27 rue_house topic says 6.8Ah
01:27 any92572396 i treated my Nicads nicely :-|
01:27 any92572396 topic lies
01:28 rue_house indeed
01:28 any92572396 so i calc'd at 4000mah, and i calc'd at 3v, so that's 12Ah
01:29 any92572396 they claim 3.7v and 6800 , or 25Ah, who you going to believe?
01:29 any92572396 err, 25Wh
01:29 any92572396 so i calc'd at 4000mah, and i calc'd at 3v, so that's 12Ah <<== 12 Wh
01:30 rue_house 4000mAh is 4Ah...
01:30 any92572396 still, if they give the 20hr rate, you 20x more batteries and you get to drive for 20 hrs
01:30 rue_house my other problem is max discharge currrent
01:30 any92572396 yeas, 4 x 3 = 12 ?
01:31 rue_house nope, Ah increases in parallel only, not series
01:31 y92572396 looks at
01:31 rue_house in either the wh goes up, but not the Ah
01:31 any92572396 so i calc'd at 4000mah, and i calc'd at 3v, so that's 12Ah <<== 12 Wh
01:31 rue_house ah, yea
01:31 rue_house I think I need sleep!
01:31 any92572396 i typo more after midnite
01:32 rue_house my poblem is discharge current
01:32 rue_house scenario A is 600V/100A
01:32 rue_house scenario B is 90V/(20 * 35 A)
01:33 any92572396 scenario A is 80hp
01:33 rue_house keeping the single cell battery current to 2A or less is a problem generating a 12kwh pack
01:33 rue_house scenario B should be too
01:33 rue_house ish
01:33 any92572396 you planning on cramming 35amps thru a vac cleaner motor?
01:33 any92572396 PLEASE TAKE VIDEO!!!
01:34 rue_house no, 20A peak thru 35 of them
01:34 any92572396 oh
01:34 rue_house 700A collective! :)
01:34 any92572396 dayam
01:34 rue_house lots of wire runs on that one...
01:34 rue_house 35 x 12 guage wire...
01:34 rue_house wonder what that is guage wise...
01:35 any92572396 have you considered modifying those bigaresed GM starter motors?
01:35 rue_house ?
01:36 any92572396 the commutators are too small for high voltage , but you can prolly easily install slip rings and solidstate switching
01:36 any92572396 BIG gas engine starters, for 450CU and bigger
01:36 any92572396 the 50lb ones
01:36 any92572396 1980 vintage
01:36 any92572396 hmm, 1975
01:37 rue_house heh, its between 4 ought and 5 ought cable...
01:37 rue_house 80HP?
01:37 any92572396 as you are prolly aware, you can push 400 amps thru those for 10 sec or so
01:37 rue_house high current is a problem, and weight
01:38 rue_house 35 vacuum cleaner motors dont weigh much
01:38 any92572396 you are not required to push 400 amps thru them
01:38 rue_house sorry, kat, I want to chat, but I'd had 3 days in a row with almost no sleep
01:38 rue_house I'v got to goodnight
01:39 any92572396 golf cart motors can take 900amps for a few sec, ask me how i know
01:39 rue_house :)
01:39 any92572396 but they are rated 100amps sorta shy of continuous if yoou have a blower on them
01:39 rue_house experiance
01:39 any92572396 yeas
01:40 any92572396 50v x 100a x 4motors = 26hp
01:41 any92572396 heck, you can use IRF1407 to control them
01:41 any92572396 2 in series is a 100v battery pack, all 4 in series is a 200v pack
01:42 any92572396 but over 50v, i wouldn't consider the IRF1407
01:43 rue_house 35*(90V * 18.94A) = 80hp
01:43 any92572396 when you do cram 400a thru the 4 motors, you might get 100hp to the wheels
01:43 rue_house I'm going to buy a set of 6 motors to see how much they weigh
01:43 rue_house maybe tommorow...
01:44 rue_house I can test-convert the lawn tractor
01:44 rue_house gnight kat!
01:44 y92572396 taps her claws on the table for the next 31 minutes till tomorrow gets
01:44 any92572396 or gets there
01:44 any92572396 gnite rue
01:45 rue_bed night
02:05 any92572396 http://www.newyorker.com/online/blogs/elements/tick-robot.jpg
02:13 -calvino.freenode.net:#garfield- [freenode-info] channel trolls and no channel staff around to help? please check with freenode support: http://freenode.net/faq.shtml#gettinghelp
07:12 any92572396 Nytimes.com is the nameserver for 276 domains and has 7 nameserver hosts.
07:31 any92572396 i had to switch to Tor to get www.nytimes.com pages
08:20 any92572396 pothole : http://imgur.com/r/pics/E80I30k
08:32 any92572396 R2D2 : http://imgur.com/r/pics/gjvhbpK
08:53 any92572396 rue, did all of Canada die? : http://i.imgur.com/8Mv1alq.jpg
09:00 rue_house kinda, it was killed by politics
09:10 any92572396 o
09:13 any92572396 can i make the back of solar panels be sheet aluminum?
09:13 any92572396 glass is so heavy, and hard to rivet things to
09:15 any92572396 how are Riff's panels lately?
09:22 rue_house well you dont want to short out the cells
09:22 rue_house I didn't hear how rif made out with those
09:23 any92572396 thin piece of plastic over the aluminum,,, or that may cost too much
09:24 any92572396 spacers off the glass, rubber baby buggy bumpers, dollops of silicone ?
09:25 any92572396 iirc, he used $600 of sealant on his, which really turned me off
09:25 rue_house I should think airflow would help them stay cool
09:25 any92572396 actual air?
09:25 rue_house your suggesting an air gap behind them?
09:26 any92572396 i dunno i want to use non-recycled air, the ordinary air has pollutants and moisture in it
09:26 any92572396 yeas, a gap tween and behind
09:27 rue_house the panels we get now use, sorta a fiberglass sheet backer
09:27 any92572396 frinstance, some form of insulating rod can be laid out to make air channels, and space the aluminum off the back of the cells
09:28 y92572396 nods, and points to http://www.ebay.com/itm/400546939913 as a source of cheap fiberg
09:29 any92572396 http://www.ebay.com/itm/221228173309 if you need only one or two panels worth
09:31 any92572396 there's a place in town that does alum roofing, i think they get rolls and form it as needed to panels as needed
09:32 any92572396 i know they make all their own galvanised drip and edging from rools, i got some from them yrs ago
09:33 any92572396 my glass is from 36" doors, so the glass is 32, so i canput 5 pcs of 6" cells across it and have an inch to spare at the edges under the frame
09:33 y92572396 shall go out and strip more glass out now,
09:34 rue_house http://www.aliexpress.com/item/Ja1-907-Aluminum-Slim-media-sparkle-billboard-with-lithium-battery/504458481.html
09:34 rue_house heh
09:35 rue_house has to be something else for backing the panels...
09:41 rue_house malimene
09:41 rue_house the penels we have get the rigidity from the sandwich with clear plastic on front and their frame
12:53 -wolfe.freenode.net:#garfield- [freenode-info] why register and identify? your IRC nick is how people know you. http://freenode.net/faq.shtml#nicksetup
13:37 -rajaniemi.freenode.net:#garfield- [freenode-info] if you're at a conference and other people are having trouble connecting, please mention it to staff: http://freenode.net/faq.shtml#gettinghelp
13:37 any92572396 i believe glass is used because all plastic deteriorates in the sun's UV rays
13:41 y92572396 has been pondering nesting the cheapest possible aluminum angle like << , so the glass and cells fits tween the = , and the || are bolted together and be the mounting of the p
13:46 any92572396 1x1 steel angle is $12/20ft , 1x1 aluminum angle is $25/25ft ,,, steel is 60 cent/ft , alum is 100 cent/ft , steel is stiffer and i can weld it at the corners
13:48 any92572396 i can weld on bigger attachemnt ears, and use 1/2x1/2 steel angle back up under the 1x1
13:49 any92572396 heavy paint on the steel lasts 5 yrs :-/
13:54 y92572396 ponders a tiny bead of silicone to hold the cells to the glass, then laying on fiberglass and then pouring epoxy , then slight periodic vac to suck the air bubbles out,, and using no backing other
13:55 y92572396 thinks this may adversely affect the silicon c
16:39 any92572396 so at 3:30 the thyme is 4 pounds
16:51 any92572396 ah ha! those '+' spacers used in laying out tile, used at the corners of the cells, to space tween the front glass and the whatever in back
19:45 rue_house hmm
19:45 rue_house surfboard resin?
19:46 any92572396 i dunno "surfboard resin", but there is a "fiberglass resin" i have used forever,, or at least since the 60's
19:47 any92572396 dries like dim glass, and just as brittle
19:53 any92572396 RUE, IT's ALREADY IN CANADIA!!!!!!! ==>> !!!****http://www.ebay.com/itm/Poly-solar-cells-100-pcs-52x19mm-for-solar-panel-DIY-tab-wire-bus-wire-flux-pen-/281157413375 <<==****!!! 50v @ 250ma trickle for your UPS
19:54 any92572396 wtf......
19:54 any92572396 Item location:
19:54 any92572396 East York, Ontario, Canada
19:54 any92572396 If you are in USA, once you pay, with 7-15working days will you get the cells from USPS.
19:54 any92572396 other places usually need 15-48working days by China Post.
19:55 any92572396 i wonder why they'd ship it from Canada to China and then back to Canadia
20:01 any92572396 http://www.ebay.com/itm/EVA-FILM-for-Solar-Panel-Solar-Cell-Encapsulation-2m-x-1m-x-5mm-79-x-39-/200944844317
20:58 any92572396 they are now on sale at the same price i paid for them 10 yrs ago : http://www.harborfreight.com/15-watt-12-volt-solar-panel-96418.html
21:55 katsmeow rue, 29,000 ufd @ 75v , ideal for making a 56vdc (4x 14v) battery charger ,, $5.50 + $6s&h (for 6 of them)
21:56 katsmeow i know it's more than $1 per item, it's just under $2 per item, but i dunno you can make 20amps @ 70v-56v any cheaper
22:00 katsmeow wind 3 nukebox transformers with 43vac @ 10amps winding, plus a 2.5/5v boost/buck winding, and you can make 56v@30amps using just one capacitor
22:01 katsmeow i'd set it at 20amps, no sense blowing things up
22:02 katsmeow 43vac * 1.4 = 60v ; 60v * 10amps (average) = 600w (average) per transformer
22:02 katsmeow they will need fans
23:05 rue_house 0.14W each
23:05 rue_house * 100
23:06 rue_house 1.4*10
23:06 rue_house = 14W
23:06 rue_house for a buck, not bad, +17 shipping, ... meh...
23:32 katsmeow-afk i dunno how you get $17 for shipping a couple lbs from Canada to Canada
23:33 katsmeow-afk i got a stack of 40 6x6 cells today in ups, the stack is 1/2 inch tall
23:34 katsmeow-afk the cells are paper thin
23:35 rue_house easy, canada post
23:36 rue_house I cant ship to my neighbour for much less than 17
23:36 rue_house I prolly cant even get to 17
23:36 rue_house and it would still take 3 weeks
23:36 katsmeow-afk :-/
23:38 katsmeow-afk 40pcs 6x6 was $38, $18 s&h (included flux pen, solder, lots of flat buss "wire")
23:38 katsmeow-afk i could put it all in a $12 flat-rate usps box if i tried
23:39 katsmeow-afk ask them if they'd do that
23:39 rue_house you see why its cheaper for me to buy from china
23:39 rue_house its not the product cost, its the shipping
23:40 tsmeow-afk points to where she said they could ship to you for $12 in a usps flat-rate
23:41 katsmeow-afk they also have a $15(?) box, doesn't matter if i put 4 mot in it, or a piece of paper, it's still $15
23:41 rue_house I think I lost a bulb I got, and so I dont want to do feedback for it yet
23:41 rue_house :/
23:41 rue_house thats a first
23:43 katsmeow-afk i didn't build the house for sun-up to sun-down moveable solar panels, i built it for launching uav and "solar power tower"
23:44 katsmeow-afk i was going to put all the conventional solar on the ground in fenced area and plant rabbits around them
23:44 katsmeow-afk make the panels track the sun, and let the rabbits figure out where the shade is
23:45 rue_house I'd really like to try making a box kite
23:45 katsmeow-afk the major portion of my roof is shaped like /|______|\
23:46 katsmeow-afk to see the sun at sunup/down, the cells haveto be 6ft off the flat portion
23:47 katsmeow-afk and so in winter tilted up 25 degrees , they'll be way the heck up there
23:52 tsmeow-afk heads to