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File: IMG_20171203_131617.jpg (1.11 MB, 1536x2048)
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Any other dumpster divers here? Just got a working table saw and some hipster level storage for my shop. What are your recent finds?
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>>1292000
It's a JVC SEA-M9. It's exquisite.
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>>1290384
>goy
>lives among jews
Why the fuck would you do that?
>>
>>1290081
The post is junk. Trash opinions, literal autism probably an underpowered teen. 13.5 years? Haha, yeah, right before its keys melt together. You will be lucky if it develops half those shitposts that in practice. The joke is also missing, not that it would be a good joke. I'd stick to using 5 different discs in it and always, always, always, MacGyver everything yourself and not depend on what the other posters say. Also, do not trust that the other posters have interests completely parallel to your own.
your post has copypasta potential and I have too much autism not to try. i'd have done the last sentence but honestly it is just too good of advice to turn into a shitpost.
>>
>>1290061
very cool find. Also you should sell them to a drug dealer
>>
>>1292126

Got a chronic back problem.. so looked for a job here.
weather is good here and if Iam off work I'll just chill in the dead sea.
Works like a charm.

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I have a problem.
Neighbor dogs barking loud at night.
I want to make acoustic device to frighten dogs and force them to go back doghuse. And not awaken all neighbors.
The distance ~330 ft and line of sight.
So, how to make directional horn?
The source of sound would be spark generator. Dogs dont like it, I tested.

The construction, I have now, is thick cardboard tube, inner diameter 2" and spark gap at one closed end. It works, but too loud at night and not very directional.
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>>1293295
> focus
So I asks! Howto focus damn acoustic waves??!
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>>1292955
pvc pipe stuffed with tennis ball halves and screwed onto a .22 rifle.

Verified pest be gone.
>>
Step 1: Record your neighbors dogs barking
Step 2: Amplify the noise and play it back louder
Step 3: -
Step 4: Profit
>>
>>1293095
>>1293398
Bruteforce methods.
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>>1293371
Oh, thanks!
From 54minute.
15khz piezo transducer with parabolic dish.
Should try.

/thread

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How would you improve that into a wedding memory box - only wood or metal, no lace, heart or whatever "cute" things
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Yes I plan to sand it, depending on the wood I will treat it with oil, wax, lacquer or glazing paint. Or maybe natural veneer.
But then ?
I was thinking about adding some vintage wood or metal decorations but my box will stay very common.
How can I transform a simple square box into something very special that will keep for the next 50 years ?
>>
>>1292969
>the material makes it special
You should divorce if
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>>1292817
>wedding memory box

Red Cross. Must have been one hell of a wedding night.
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>>1292969
Add nice metal corner caps/foot type things to protect it from getting dulled and losing it's form if you really want it to stick around for another 50 years. Silver metal, paint it white(classic wedding color, maybe some contrast detailing), maybe a small handmade commemorative plaque on the top? Some nice handles on the sides so it's easier for your wife to handle if she wants to show some people sometime. Change the latch like someone else said.
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>>1292817

put it in a shipping container and build another box like it out of used pallet wood, then add a RPI to provide a light when you open the lid

Realistically, how much would it cost to get electricity and water in an isolated area in a first world country e.g. the UK? Enough water for one person, enough electricity for a fridge/heater.
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>>1291803
Gonna need a water well, pump house, abd shit tons in a panel or wind or water or combined setup to live normal
>>
h
>>
Or do like me and scrimp and save and gamble for drill natural gas well.

Store natural gas
Use gas
Gas generator
Sell excess
Have 0 bills.

That will be the day.
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>>1291803
for water, if you live near a stream or pond you can filter it yourself with berkey, sawyer, or survival filter brand filters and have water that costs pennies per gallon

likewise if you have enough rain in your area you could just collect rainwater off your roof and filter it

the brands i mentioned claim to even filter out bacteria and viruses, along with nasty chemicals
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>>1291882
lel - convert your truck to run on nat-gas and you'll never pay for fuel either. that would be a jackpot.

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bump limit reached on old thread >>1284905

>I'm new to electronics, where to get started?
There are several good books and YouTube channels that are commonly recommended for beginners and those wanting to learn more, many with advanced techniques. The best way to get involved in electronics is just to make stuff. Don't be afraid to get your hands dirty.

>What books are there?
Beginner:
Getting Started in Electronics Forrest Mims III
Make: Electronics Charles Platt
How to Diagnose & Fix Everything Electronic Michael Jay Greier

Intermediate:
All New Electronics Self-Teaching Guide: Kybett, Boysen
Practical Electronics for Inventors: Paul Scherz and Simon Monk


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Alibaba Group does not plan to sell AliExpress.
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I've got this promotional video brochure thing, made by mayways. The pcb has four solder pads next to each other, labeled GDN, R, L and PA. anyone know what that is? the board is labelled MWS-AK2065.
I don't think it's audio since there's already a speaker connected somewhere else on the board
>>
Hey guys, im trying to build a dummy battery for my pocket wifi since my battery is already swollen and wanted to use it 24/7 thus the idea if this project.

I have zero knowledge about electronics but can read a basic schematic. I saw images of DIY dummy batteries but no further info about the schematic and resistor values are either tampered or censored. Luckily I found 2 images that aren't censored but their not clear.

So I tried to figure the values by their color code but wasn't so sure if I'm correct. I need your thoughts about these. TIA
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>>1294035
4K7 5% looks right and maybe also 150Ω 5%. Blue 4-band resistors are rare, they usually are 1% and have 5 bands.
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>>1294031
Got pics?

pshhhhhBRRRRRRRRRRRRRRRRRAAAAAPPP
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>>1292833

>>not treating every job like it's a $100 job

I have one of my guys that do this. This quality has its time and place but if you are going to slap something together to throw literal feces in so you can cart it to the shit pile at the other end of the farm and dump it out, you don't need to artisanly craft it to international standards for the food, health, hospitality and tourism industries.

Then it becomes a detriment, more often than not.
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>>1292938
I'm like this and everyone at my shop is starting to hate me because I'm not fast enough.
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>>1292922
I polished the weld beads. Can dyi into artsie-fartsie?
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>>1293004
Is that a shitty Windows 95 logo or something?
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>>1293202
Sure

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hey guys,

I plan to have the shitty hollow core doors in all the bedrooms replaced with some solid core doors.

I'm wondering, is it possible to install an exterior prehung fiberglass door in the interior? Halfway up the stairs you can see into my bedroom from the crack beneath the door, pisses me the fuck off, and having a door with a sill seems like the answer, because those draft guards look like shit to me.

But that raises the question whether a sill/threshold can be installed over the tile indoors as normally there's just that gap there, I've never done it before so I don't know and I can't find anything on installing exterior doors indoor online so I defer to /diy/'s genius.

Also, will the weatherstripping seal my bedroom up so tight air wont properly circulate throughout the home?
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>>1292206
weatherstripping?
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>>1292171
>is it possible to install an exterior door inside?
Just the door? Sure. The door and the frame/threshold are separate things, even though doors are often sold 'pre-hung'. So, just install the door and forget the threshold.

Door AND the threshold? Whoa, there guy, you can't... just kidding. Yeah, you can do that too it's just more work.
>>
>>1292062
>Also, will the weatherstripping seal my bedroom up so tight air wont properly circulate throughout the home?

Yes. Unless each of the rooms has it's own return duct, there needs to be a gap at the bottom of all interior doors for proper air circulation. Otherwise the room will basically just get "pressurized" byt the HVAC supply duct and the airflow will diminish.

You could get around that by cutting a hole in the wall (or door) and putting a louvered vent in it.
>>
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>>1292365
You think these type of door sweeps with brushes will allow enough air to circulate through?
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>>1293300
this isnt how doors are meant to work. its a fire code thing. doors are meant to provide a reasonable seal to prevent fire spreading. the whole idea is that if a room catches fire you can just close the door, call the fire department and wait outside. fire doors give you 15 minutes, interior doors are meant to give five minutes. the idea is that if say a curtain catches fire or sum shit then it just burns out the one room. instead of your house turning into a blazing furnace within a few minutes.

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This is the technology board, so why not a thread about this?

Here is the scenario:
>2000 people are sent through a time machine to the dino days to study things
>they can't bring anything but themselves, not even the clothes on their back
>they need to build everything from scratch when they arrive
(this creates an alternate timeline, does not interfere with ours)

How long would it take for them to create:
>steel
>guns
>electricity
>lightbulbs
>cameras
>cars

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>>1292268
Imagine being as out of touch with reality and as brainwashed as this guy.

Did you do peyote or something?
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>>1292718
Definitely peyote.
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>>1280886
I think its quite funny that we was just a thousand subscribers then all of the sudden hes channel exploded and got millions of subs.
>>
>>1292270
>They need to be properly trained years before it happens.

This.
But what you also need to consider is that the first generation of 2000 will not achieve much more beyond subsistence survival. Maybe iron age technology with an advantage in basic biology (won't have to re-learn that drinking the village poo water causes cholera). Come the next generation, most of the more advanced knowledge of the first group will be lost. Unless it gets written down and a culture of science and education can be created. Subsequent generations may have to be told to skip over the parts of the library dedicated to quantum physics, microelectronics and software. Until society has grown to the point that a manufacturing base can be supported by the economies surplus.

So, in addition to survival, the first generation will have to build a library. Before half of them get eaten by the velociraptors and knowledge is lost forever.
>>
>>1280894
Tribes advance into feudal realms as a matter of course, which I think is the most idea as long as they stay fairly small, pop a crown on a galvanizing figurehead for more broader fraternity and continental defense.

The Black Plague reduced too much of the population and gave peasants too much political leverage and we paid for it with the seeds of the enlightenment and (((egalitarianism))).

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hey guys got any ideas on what i can make with pallets?
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>>1262764
I've been making Christmas trees out of them and selling them
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>>1288072
Yes.
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>>1262764
Take them to a burning man festival and set yourself on fire
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>>1285201
Old post, but if it keeps somebody from using pallets, I'll say it: don't reuse wood pallets. At my work, we spill so much silica dust on them, you don't want it in your house, that shit is carcinogenic.
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>>1262764
Smaller pallets

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Anyone know what I can use to insulate this cat shelter? Is hay just fine?

I have stay cats on my property that like to get into my garage or lay behind the bushes presumably trying to stay warm during the winter. So I'm building 2 or 3 of these to help the cats out while at the same time keeping them out of my garage and not hurting them.


This is the prototype I made today
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>>1292514
you would be naive to assume that luring cats into a hotboxed container is my entire agenda. Ultimately am to become God of the cats -

You see getting cats stoned is only part one of my plan, in addition to spiking the saucer milk with codeine further inhibiting the consciousness of cats. This will employ the cold water extraction method of OTC Tylonel-2 since they’re legal and the end product resembles milk, a pasty white liquid of codeine. After cats are stoned and incapacitated by codeine I’m going to force them to watch special videos strapped to a tiny chair I specially made for cats. All the videos will present me as their God in different ways until my experiments are successful in achieving command over nature
>>
>>1291213
This. Focus on wind/rain protection and a roof. Cat can take care of rest with body heat / fur.
>>
>>1292723
You had me at "tiny chair".
>>
>>1292306
Anon from /out/.
He's on a one man mission to exterminate every single cat that crosses his path.

Has a whole manifesto and everything.
>>
>>1292723

well this thread went sideways fast.

my autistic brains likes the idea tho
if theres one thing that 4chan taught me its that dreams can never be crazy enough

This box is mounted on the wall near my furnace. There are two cords coming out of the box. Both cords (one is the thickness of a standard power cord, the other is similar to thermostat wire) run to my furnace. What is this box?

Possible useful information: I have a heat pump with an electric furnace.
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>>1293150
That's an old electrical finger box. They phased them out in the 90's
>>
>>1293162
Lost
>>
>>1293150
Your heat pumps brains.
The blue wires are for the electric furnace.
>>
>>1293170
I disagree. A heatpump's mcu is always in the furnace and would need a lot more wires. This is something else.

I'm bored so I'll give it a shot.

Googling ABB Power Co. shows they're an industrial supplier for grid equipment but their site has no reference to a "LMT-3000". From the picture the board in the back of the case has one relay and components for a low voltage PSU to power the logic PCB mounted on the door. The logic PCB has two rails, +12 and +5, a darlington transistor array to drive the relay, a duel differential comparator, and duel op amps. This is all supporting circuitry which makes me think if you removed that PCB and flipped it over you'd find a microcontroller.

My guess is it's a controller letting the power company switch off your A/C during high demand.
>>
>>1293209
>My guess is it's a controller letting the power company switch off your A/C during high demand.

You are probably 99% right. Except my off-peak electric is only during the winter. My power company can shut off my electro boiler, water heater, and my heat pump

Thanks for the info

A friend of mine is having issues with her unit. Furnace/AC is on the roof of an old house she just bought, and was told by the previous owner that the AC doesn't work, but the heater does and they will install a new thermostat. After the replacement, still no air and now no heat but the blower fan runs constantly when the breaker is on and will not stop. Getting continuity from red to yellow at the thermostat, traced it out to the roof and have continuity on the red to yellow terminals on the block. Any idea what's going on? Google is no help. Checked for short in thermostat wires, checked proper voltages, checked fuses. Everything basic maintenance wise is good except the blower seems to be stuck in a normally closed position. Best idea I had was the fan limit switch has given out.
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>>1292682
Op here, found a short from melted conductors, replaced them and everything is good. Thanks for the help though.
>>
Check for melted conductors OP, thats the best bet.
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>>1292714
And OP, if you find any, replace them and report back on any progress.
>>
>>1292714
>>1292735
He's just too embarrassed to admit it was the capacitors. He replaced the ones that were bulging.
>>
In my experience with HVAC 3/5 of the times it's a capacitor on a sentry unit. Best way to tell if the compressor is running though is the air coming from the top is warmer than the air around. If it is then you've got AC. If the compressor runs with the fan and you can confirm the compressor is running, you're low on freon. If the top fan isn't running that should be obvious what you need to change.

Just for future reference, of course, but it's usually the capacitor on the unit itself.

My parents have this ventilation laundry dryer from Gorenje (model D50110) - I'm an EUfag. Well, yesterday the old work horse finally gave out and went out in a blaze of smoke, quite literally. Then I opened it up, tested the electronics, the drum, the ventilator, the thermostat, the heating element - everything is in great condition, except this thin, yellow strip of isolation between the heating element and the drum. So I was wondering if anyone has any experience with the replacing these, since the years of lint caused it to smolder and it stinks up the place when you turn the dryer on. I figure replacing it wouldnt be too hart, I just dont know what material its made out of.
8 replies omitted. Click here to view.
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>>1293007
Just hang a couple of those fire supression balla tha get hot and epload extinguisher powder. Prollem solved
>>
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>>1293013
>no its like this thin woolly strip, kinda like a thin carpet, i cant explain it better. maybe some kind of stone of glass wool, but rigid. also it burned like cloth, which means it wasnt wax

i've never heard of that before, have you tried looking at parts diagrams for that exact dryer? you should be able to pick out the part or assembly its part of

is it part of this 'heater cover'?
https://www.gorenje-spares.co.uk/tumble-dryer/d50110-161372/element/catalogue.pl?path=498892:665740&model_ref=2532160&refine=element
>>
>>1293013
>no its like this thin woolly strip, kinda like a thin carpet, i cant explain it better. maybe some kind of stone of glass wool, but rigid. also it burned like cloth, which means it wasnt wax

you could use something like this -
https://www.sheffield-pottery.com/KAOWOOL-BOARD-2600-DEG-1-X-2-X-3-p/tchtb.htm

but really it overheated for a reason and you gotta either figure out why or junk it
>>
>>1292971
>stinks up the place when you turn the dryer on

This is why all of the best people put their appliances on the front porch.
>>
>>1293104
The motor in those sits below the drum, it’s open frame and the drum is sealed on the front and back with felt... the leak lint like crazy not just whirlpool but all brands especially if you have lots of cottony loose clothing... clean the inside of your dryer at least every other year... the vent it’s connected to and laundry run through it affects this a lot... have opened up ancient dryers with gobs of lint and also some with none... have seen a few new dryers accumulate large amounts of lint in like 2 months because of crappy vents and customers running baby clothes through them... baby stuffs usually softer and also more likely to be new since kids grow fast... = shitload of lint

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>>1292924
Cover it up.. doesn't have to be right away if you want to stretch out the funds.
Just make sure to do it within half a year to a year max.

If you leave it exposed it'll get damaged and dirty.
>>
>>1292924
Harvard Graphics
What, no Peachtext?

I should scan in some old zines just for shits and giggles. But first to either figure out how to get an old Canon LIDE-30 working with windoze 10 or get a new scanner...
>>
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>>1293110
>>
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>>1293194
good lord... In 1995 my folks bought a Pentium 200MMX machine with a 3d accelerator and 32mb of ram. We must have been loaded.
>>
>>1293196
I'd love to have the disposable income of a fresh out of high school boomer.

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Can we talk about dome houses? I have been researching it and the concept is very cool, unfortunately it seems to have been taken over by hippie faggots and looks like a nightmare to get through local body permissions.

>Strong as fuck
>aesthetic
>easy to build
>cheap to build
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>>1289807
how do you even frame a dome?
>>
>>1289807
All you need is a big factory crane that can move in (x,y,z), a computer to control it, a plastic extrusion nozzle, and a bunch of feed stock. Lay out your design on the PC, then 3D print your hobbit lair. Or that Sealand 2017 monstrosity, whatever. ...
>>
>>1291692
If you want a buckyball, then you attach nodes with manufactured metal brackets.

Or make something up

https://www.pinterest.com/pin/143411569357912740/
>>
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What about this /diy/. Referring to pic related, you can build a simpler structure to pass city standards, in blue. Then you can continue the sphere shape and possible central structural piece. Could possibly be done without it since the simple structure should be up to code. Then I see the potentially endless designs as you use the sphere structure to be decorative and light.
>>
>>1289807
If OP is serious he will contact builders of dome structures directly then study how they do it and compare.

>hurricane proof for cheap

Wonder why geodesic domes never made it outside military radome cover use? They suck to seal and aren't particularly stout. Fine for keeping modest weather and sunlight off radar antennae though.

Concrete domes OTOH can survive wildfires and are amply strong for earthquake zones though you need to have your design approved.

If you must go geodesic and get the design approved it won't be cheap.



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