#garfield Logs

Jan 06 2015

00:00 rue_bed yes, I suppose
00:00 tsmeow has some in 2-
00:00 rue_bed some types are more evil than others
00:01 katsmeow what i have is copper clad steel, for overhead, drops, and people often bury it too
00:03 rue_house oo
00:03 rue_house with the hardened core usually
00:03 tsmeow dies on anta
00:03 katsmeow dines
00:03 katsmeow yeas
00:04 rue_house something I didn't notice about this code, ..... ALL variables are global scope
00:10 katsmeow lets say i have some delicate polyester fabric which i got because it's really cheap, and i slit a 1/2" sch20 pvc pipe lengthwise to slip tis fabric into, and make for a thin film of water flowing down the fabric
00:10 katsmeow how do i get the fabric into the slit without tearing it to shreds?
00:11 rue_house solar panel eh?
00:11 katsmeow evaporator
00:11 rue_house I'd say dont, make the fabric into a tube at the corner(s) and compression fit it to the tube
00:12 rue_house possibly by sliding the fabric tube over the ridgid tube and wrapping a spring around it
00:12 katsmeow how will that get me an even film at zero psi across feet of fabric?
00:12 rue_house hmmm
00:13 rue_house it could only do that if part of it isn't at 0 psi
00:13 rue_house say, maybe if the top of the fabric were turned into a tube that bled
00:13 katsmeow see, with a slight clamping that the pvc will inherently do once cut, it is self-regulating on the fabric
00:13 rue_house or maybe just use a piece of soaker hose along the top of the fabric
00:14 katsmeow soaker hose can clog with the particulates i want the fabric to trap
00:15 rue_house so one or two peices of fabrick in the slit?
00:15 rue_house damn the k made it thru
00:15 rue_house I been deleting them all
00:15 katsmeow yeas
00:16 rue_house hmm, i suppose I fill the rest of the buffer with the last value
00:16 rue_house thats crude....
00:16 katsmeow even if i can put the fabric into the slit, then removing it is the same issue, the rough (from cutting) pvc edge will rip the fabric
00:17 rue_house sleeve it during the insert
00:17 katsmeow cannot sleeve it to emove it
00:17 rue_house well, can the fabric go thru a slit on each side?
00:17 tsmeow ponders something to cram into the pvc to expand it during insertion/remo
00:17 rue_house double it up?
00:18 rue_house -----o------
00:18 katsmeow cut the whole pipe in two halves? where will the clamping force come from?
00:18 rue_house if so, its jus a matter of cutting the pipe in half..
00:18 rue_house the scrws you put thru it
00:18 katsmeow ergg
00:19 rue_house whats the evap for?
00:20 katsmeow reduce reliance on paper filters, and eliminate most of what clogs the RO filter, and possibly reduce that creek-bed smell
00:21 rue_house surface filter?
00:21 rue_house what does a creek smell like?
00:21 katsmeow hmm?
00:21 katsmeow biological, wet leaves, musty
00:21 rue_house oh
00:22 katsmeow mulch, peaty
00:22 rue_house rifraf had lots of leaves in his gutter and I never noticed a taste
00:22 rue_house he said his daughter said the water tasted like tea tho
00:22 katsmeow plus on a boat, salt is what typically does in the reverse osmosis filter, and they aren't getting any cheaper
00:23 katsmeow was he drinking water off the roof? with bird poo in it?
00:23 rue_house yea
00:23 rue_house all ozy water comes from roofs
00:23 rue_house his tank was half the size of his house
00:23 katsmeow filtered, i hope
00:23 rue_house probably
00:24 rue_house definitly well settled
00:24 rue_house but yea, almost everyone there used tanks filled by the roof
00:24 rue_house via gutters
00:24 katsmeow thing is, if the thermodynamics canbe dealt with, i think 99% of all contaminates can be removed by evaporation
00:24 rue_house evaporation tends to clean water up good
00:25 katsmeow King Bush 2 here in usa has a texas house with a cellar cistern for roof water, half the size of the house, but it's ok for him, while i was threatened with assault for doing the same thing
00:25 katsmeow it's even the law in Buermuda to have a cistern
00:26 e_house smacks his
00:26 rue_house do not NEED an interrupt on the pwm timer, we dont care about what the pwm is doing
00:27 rue_house just need a freaking sample timer
00:28 katsmeow got to solve this pipe clamp regulator thing,, atm i can get 120ft long 54" wide fabric for $13 free s&h
00:29 katsmeow that's ~60 pcs of 2x2 fabric doubled over,
00:29 rue_house how do you catch the evaporated water?
00:30 katsmeow and if spread apart 1/4 inch is 17 inches of concentrated double-sided water film
00:30 katsmeow those corregated plastic panels
00:30 katsmeow 4x8 ft, qty 10, $100 delivered, Home Depot
00:33 katsmeow heat the water that is evaporating, from any heat source (fridge, genny exhaust, solar panel, propane, electrical, fuel oil, etc), slightly chill the plastic panels (if required, but the point is to not require that)
00:34 katsmeow by "heat" , i mean 10 degrees is prolly plenty
00:34 rue_house hmm maybe its late, but I cant picture your plan
00:34 katsmeow as needed, remove the fabric and toss into washing machine, reinstall
00:35 katsmeow hmmmm
00:35 katsmeow maybe solved the problem
00:36 katsmeow or at least, offset it
00:36 katsmeow will haveto try it tomorrow
00:40 katsmeow ok, it's now tomorrow
00:42 katsmeow btw, i took a piece of 3" pvc , blocked one end watertight, and poured in a gallon to see just how much pipe it took up, looks like ~34 inches to the gallon, which sadly works out to the 1.8 gallons per 5ft we figured the other nite
00:43 rue_house why is that sad?
00:43 katsmeow because i wanted to store 5 gallons in 5ft
00:44 katsmeow heck, i can store 5 gallons in a 5 gallon bucket, and it's a *lot* shorter than 5ft
00:44 rue_house zippo:/files/programming/arduino/GBSplayer/TMRpcm-master/TMRpcm# units 1gallon liters
00:44 rue_house * 3.7854118
00:44 katsmeow hmm?
00:44 rue_house units 12inch cm
00:44 rue_house * 30.48
00:45 rue_house calc 1liter cc
00:45 rue_house 1liter -->> 1
00:45 rue_house er
00:45 rue_house zippo:/files/programming/arduino/GBSplayer/TMRpcm-master/TMRpcm# units 1liter cc
00:45 rue_house * 1000
00:45 katsmeow problem is, 5 gal buckets aren't food-grade material
00:45 rue_house units 1gallon cc
00:45 rue_house * 3785.4118
00:46 katsmeow unless, of course, they came with food in them, i spose
00:46 rue_house calc 3785.4/30.48
00:46 rue_house 3785.4/30.48 -->> 124.193
00:46 rue_house circle -a 124.93
00:46 rue_house Radius is : 6.306065
00:46 rue_house Diameter is: 12.612130
00:46 rue_house Circumfrence is : 39.622177
00:46 rue_house Area is : 124.930008
00:46 rue_house Sphere area: 499.720032
00:46 rue_house Sphere volume: 1050.422363
00:47 rue_house units 12.61cm inch
00:47 rue_house * 4.9645669
00:47 rue_house you need 5" pipe to have 1 galon/foot
00:48 katsmeow ok
00:48 katsmeow i have some 6" pvc, but caps for it will cost a small fortune
00:48 rue_house yea been thre
00:49 rue_house I wonder...
00:49 rue_house zippo:/files/programming/arduino/GBSplayer/TMRpcm-master/TMRpcm# circle -d 6
00:49 rue_house Radius is : 3.000000
00:49 rue_house Diameter is: 6.000000
00:49 rue_house Circumfrence is : 18.849556
00:49 rue_house Area is : 28.274334
00:49 rue_house Sphere area: 113.097336
00:49 rue_house Sphere volume: 113.097336
00:49 rue_house zippo:/files/programming/arduino/GBSplayer/TMRpcm-master/TMRpcm# circle -d 5
00:49 rue_house Radius is : 2.500000
00:49 rue_house Diameter is: 5.000000
00:49 rue_house Circumfrence is : 15.707963
00:49 rue_house Area is : 19.634954
00:49 rue_house Sphere area: 78.539818
00:49 rue_house Sphere volume: 65.449844
00:50 rue_house calc 28.27-19.63
00:50 rue_house 28.27-19.63 -->> 8.64
00:50 katsmeow well, the cheap pump i am going to try this with is only 1 gal per minute at pressure, so it will take at least a minute to pump a 3" 5ft pipe anyhow
00:50 rue_house circle -a 8.64
00:50 rue_house Radius is : 1.658372
00:50 rue_house Diameter is: 3.316744
00:50 rue_house Circumfrence is : 10.419858
00:50 rue_house Area is : 8.640000
00:50 rue_house Sphere area: 34.560001
00:50 rue_house Sphere volume: 19.104445
00:50 rue_house if you put a peice of 3" pipe in the 6" pipe it will displace the difference
00:50 katsmeow what i will count on is that 1 gal/min = 1440 gallons per 24hrs
00:50 rue_house and give you 1 gal/foot
00:51 katsmeow why would i want to displace the difference?
00:51 rue_house to make it 1 gallon/foot
00:51 katsmeow i don't care if it is more than 1 gallon per foot, i care that buying pipe caps for 6" pipe will be pricey as heck
00:52 rue_house well I'm just sayin...
00:53 katsmeow the store wants like $15 for 4" pipe caps
00:53 rue_house cheap compared to here
00:53 rue_house they wanted something like $50
00:53 rue_house my jaw hit the floor and I started plan B
00:54 rue_house your crafty, you could thermally weld a flattened peice of 6" to the end
00:54 katsmeow so i am trying to scale back to what's reasonable for the RO filter (34 ... 60 gallons *per day*) and a water pump that does only 1 gal per minute, on an experimental diy evaporation-condensation unit
00:54 katsmeow i considered making my own, but it prolly would not hold 60psi
00:55 rue_house your also a jig master, I bet you could form an internal cap from a piece of flattened
00:55 katsmeow 1/2 ton of pressure on the end caps,, if not for that , sealed bondo would work
00:55 rue_house use some crazy wooden blank and heat/press mould something
00:56 katsmeow no, 3/4 ton @ 60psi
00:56 rue_house good thing its sitting ON the endcap!
00:56 katsmeow and one on the top that it isn't sitting on
00:56 rue_house oh, pressureized whestle eh?
00:57 katsmeow yeas, pressurinsed whessle, scotty
00:58 tsmeow ponders steel plate and 4 long bolts,, 5ft bolts get pricey ,, mod that idea, mod the next idea, mod it again and again ,,, my head h
00:58 rue_house have you ever tried to get a pvc cap off that wasn't glued on?
00:59 rue_house and you have to smash the thing from all sides and its completely defient?
00:59 katsmeow yeas
00:59 rue_house I hate that
01:00 katsmeow 40 grit sandpaper on a body grinder, taper the heck outa the end of the pipe, then use silicone sealer ,,,, it won't hold pressure but it comes apart easily
01:00 katsmeow if you drill holes and insert screws, like assembling ducts, it will hold some pressure
01:00 tsmeow has done that for temp dr
01:00 rue_house oh that reminds, me, I have to get new unscrwable caps for the shop after having to smash the old ones out
01:01 katsmeow go over the threads with wire brush in dremel, coat with vaseline before screwing together
01:01 katsmeow they come apart like they been coated with grease :-)
01:01 rue_house keeps sand out?
01:02 katsmeow yep, actually fairly pressure tight
01:02 rue_house I need food, but I dont want to eat
01:02 rue_house that means I should have popcorn, right?
01:03 rue_house or is that for the opposite
01:03 katsmeow err, with "onion salt" on it, yeas
01:03 rue_house hmm I'm out of lemon salt
01:03 rue_house (vampires dont like garlic you know)
01:03 katsmeow "onion salt" makes it taste like it's twice as much
01:03 rue_house ah
01:04 rue_house maybe some extra crispy bacon bits?
01:04 katsmeow it's like the difference tween cooking on a wood heater vs a electric stove
01:04 rue_house hmm I think I have a machine that makes popcorn
01:04 katsmeow the 3D printer, yeas!
01:05 katsmeow i think i paided $2 too much for that fabric
01:06 katsmeow that's 3 cents per hanging panel,, i'll get over it
01:10 katsmeow i wonder if Tom has a suggestion for a late dinner that won't cause acid indigestion at 3am
01:16 tsmeow ponders confusing people by making hunting blinds outa nauga
01:22 katsmeow note to self: slit the pipe, insert single layer of fabric into slit, lay each side of plants in garden as very low pressure soaker hose
01:26 katsmeow lacking any children (they'd be grown and gone by now anyhow), /me takes a hacksaw to the child-proof pill bottle
01:40 rue_house if anyone asks, I was in bed 2 hours ago
01:40 rue_house ... and still am
01:42 katsmeow Home Depot has their 3" "wire drawer pulls" in stock again, they are pricey, and are the max size you'd wanna put on a 2U rackmount, but they do fit with some clearance to the box above and below
01:44 katsmeow arg, they are cheaper on ebay
01:48 katsmeow ooooooo 1000 of the 3.2" for only $330 !! buy now!
01:49 katsmeow if they are 33 cents each like that, why is one $3?
01:55 tsmeow goes to #freenode to point out the ircd is somewhat less helpful that it could be when asked /whois watching Ban
02:57 katsmeow no way a weasel used a clamshell to turn a t-rex into a t-rachel
03:19 katsmeow pecans are nuts for pies
13:56 tsmeow announces that a single chew tablet from a Walmart generic $4 bottle of Equate Acid Reducer Complete eliminates waking from acid re
17:40 katsmeow ok, pipe taps to thread into pvc: 1/16 , 1/8 , 1/4 , 3/8
17:40 katsmeow what am i forgetting?
17:45 any20549942 wth??
17:45 any20549942 i couldn't dns any irc server on freenode!
17:46 any20549942 [17:21] -kornbluth.freenode.net- Server Terminating. Received SIGTERM
17:46 any20549942 somone killed the server
17:46 katsmeow [17:20] <katsmeow> ok, pipe taps to thread into pvc: 1/16 , 1/8 , 1/4 , 3/8
17:46 katsmeow [17:21] <katsmeow> what am i forgetting?
17:46 katsmeow [17:21] *** Disconnected
19:00 tsmeow looks for a pile of 2ft long 1/2 od alum square
19:01 katsmeow or, 3/8
19:29 tsmeow ponders laying round alum tube into a square slot, and pounding it sq
19:39 rue_house square pipe tap?
19:40 katsmeow huh?
19:59 rue_house I thought I read your tapping a square pipe
19:59 rue_house I need a nap...
20:00 rue_house I have to make mic preamps for the hospital
20:00 katsmeow o
20:00 rue_house do you have a favorite AGC circuit?
20:00 rue_house fer audio?
20:00 katsmeow yeas, but you won't like it
20:00 rue_house the preamp alrady uses transistors
20:00 rue_house or is it tube :)
20:01 katsmeow no, it uses a light bulb and a CdS cell
20:01 rue_house oh yea, I forgot about that
20:01 katsmeow more of a compressor, really, but very low distortion and linear
20:01 rue_house you mount them in a little opaque pipe
20:01 tsmeow
20:02 rue_house do you think it would work with a white led?
20:02 e_house tries to recall if he has any cds c
20:02 katsmeow no, the led isn't a wide variance
20:02 katsmeow and the led is instant, it's not slow like a incandescent
20:03 rue_house ah
20:03 rue_house I'm to make the mic preamps tonight,
20:03 katsmeow start with a variable gain opamp?
20:04 rue_house I have an agc amp to try out, but the bulb thing is so simple
20:04 rue_house dont know if I have any
20:04 katsmeow yeas, but then bulbs burn ut
20:04 rue_house they arn't run hard, a good setup could last 20 years
20:05 rue_house but thats why I was thinking white led
20:05 rue_house yea, just a little nap
20:06 rue_house the preamp pcb is designed, I just have to etch is
20:11 katsmeow yoo can limit with some diodes and assorted resistors, if the diode happens to be a transistor, you have clamp gain, if it's a optocoupler led you have isolation and gain
21:09 tsmeow isn't sure how well you can make a ~1v +/- power centered on 0v, but a pnp with emitter and base on +1, and a npn with emitter and base on -1 , hook both collectors to the signal line a
21:10 katsmeow wait............
21:10 katsmeow i got npn-pnp swapped
21:12 katsmeow npn with emitter on -1 pnp with emitter on +1, tie all collector and base to signal
21:12 katsmeow it might sound softer if you have a have a resistor on the bases
21:25 katsmeow http://designerthinking.com/images/agc.gif BUT CHANGE THE +/- 1v to +/- 0.5v
21:31 tsmeow leaves it to rue to possibly insert resistors in the emitter lines, and .1u caps from the bases, and an opamp after the
21:52 katsmeow rue, i bcc'd you email