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Archived threads in /diy/ - Do It yourself - 118. page
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File: photo1 (4).jpg (612 KB, 2448x3264) Image search: [iqdb] [SauceNao] [Google]
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I am fairly new at welding so I just came here for some advice.So I have this welding machine.It only has a knob to make amperage higher and lower. I use 2.5mm electrodes,the metal i tried welding on to was also about 2.5mm thick.I cleaned it and tried and at first i got a lot of sticking,so i amped it up to the electrode recommended setting of 70, and it was sticking like a motherfucker, so i got it higher to about 80 and then beyond. I started getting a bit of a splatter and the arc was really hard to make upon contact.

My general questions are:
-Is getting an arc...
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The bulging weld in question
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My other welds i did a while back.Just wondering if they are ok or if i am looking for something else
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>>989389
that welder isn't great for starting arcs. the best machines strike first time every time and keep the stick lit even when you're using it wrong - but the actual welds produced are no better.

honestly your welds look normal. i'd say you're good to go for basic farm-welding tasks like making brackets, shrinking bearing races, and welding nuts onto rounded-off bolts.

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and they swarm this time of year. Should I be worried? I told my landlord but he made it very clear that he doesn't give a shit.
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>>989036
As long as they are not chewing on the structure of your house...
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>>989036
Do you have a wood framed house? Or is it brick or steel?

If its wood framed then you're pretty fucked, you could wait for the house to collapse on you and then sue the shit out of your landlord though.
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>>989044
This. OP make sure you are dead, then you can sue your landlord for killing your life and ask for hundreds of thousands in compensation.

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What are the coolest projects you have seen that use an Arduino Uno or Adafruit Trinket. I have two of each and am slowly learning to work them.

I recently built a music box using the Uno. It plays Zelda's Lullaby and my friend loved it.

What have you guys been working on?
What do you want to build?
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Making a thermoelectric cooler with PID control using an Arduino Nano. Similar to the one in the pic.
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Slowly getting all the parts together for this https://youtu.be/s3dBox-LB7I. A midi synth guitar. Only need to buy the three softpots but those are expensive as fuck.
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>>989001
how i can get into arduinos?

So I've posted a few times before about my decellularization projects. First I did fruit, then I did a liver and now I finally got around to doing a whole heart. The process removes all the cellular material from a piece of tissue to leave only a white scaffold. This has become a fairly common technique in tissue engineering as the scaffold could be used to grow a new heart if you seed it with your own stem cells. I made a video going through the whole process https://www.youtube.com/watch?v=SjcMyicfrL8
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>>988807
that's really cool.

did you ever compare weights prior and post decellularization?
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>>988881
No but now that you mention it I wish I had. woulda been cool to see how much stuff comes out
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>>988881
I can say that it felt a lot lighter when I picked it up though

File: example.png (668 KB, 848x427) Image search: [iqdb] [SauceNao] [Google]
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So I saw this thing in the picture and now I want to make a similar contraption. Mine would be much simpler and more of a clock chime than a musical instrument though. I need input on my design.

I'm only concerned about the marble escalator part so far. I'll worry about the rest later on.

A video of pic related action: https://www.youtube.com/watch?v=IvUU8joBb1Q
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>>986587
A crude sketch of my design:
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>>986587
check out 'Denha' channel on youtube. He makes marble machines.
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>>986587
Why not use a chain with 'hooks' attached to grab the balls? Like mini fork lift prongs.

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Post your laughable 1st attempts at shit you're competent at now ITT

maybe we can encourage some 1st timers with it, and have a sensible chuckle too

Pic related it's my 1st attempt at lost wax casting with scrap Al
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>>984580
my 1st ever attempt at soldering, modding a cable, and /diy/ in general.

its stereo rca to 3.5mm aux, made it because the 3M and longer versions all cost too much dosh. didn't know about shrink tubing or electrical tape at the time, but I was smart enough to separate all the connections to prevent shorts and lucked out with the L-R channels being correct so I still use it.
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1st attempt at woodworking. It's a brass resizing die holder. I had to sand it for way longer than I should have because the hole tolerances were too tight on half of em and I burned it every pass I made with the router
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>>984591
fuck me I'm not australian

I found an old pc fan and i wanted to customize it. Has anybody experience with that?
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>>990386
Yes.
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>>990386
I took one of the mega PC fans (the 1.5A) rated ones, stripped away everything but the rotor and stator, and 3D printed a 1 foot diameter set of quadcopter blades, epoxied them on, and slowly cranked the power.

At 12Vit was spinning kinda
at 20V it was wobbling
At 30V it started smoking
At 32V it took off, tipped over, shrapneled the blades, and started on fire.

In conclusion, I would not reccomend customizing computer fans.
>>
What's with /diy/ lately? Next some idiot is going to ask of there are any cool hacks he can do with 4 inches of string.

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Hey guys.

So my HTC One M8 no longer charges due to a faulty charging slot. I'm trying to replace it, bought all the tools necessary, but apparently I need to take out the sim card and SD card holders first. This requires sticking a pin into the hole near it, which can be seen from the picture.

Unfortunately, the sim card hole is damaged and therefore the metal near it covers it up. It's impossible to access. How do I fix my phone if I can't get my sim card out?

If someone can help I'd be extremely grateful. Already cut myself trying...
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Can you take a picture of what it looks like at the moment? Having some trouble understanding what is covered by what. Did you bust the phone up so bad the hole is covered or is the tray warped?
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>>990293
I'd take a picture, but my phone is dead atm, as it is usually nowadays. The phone is so busted up that the hole is covered up, yeah.
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>>990293
The tray is fine, it's just the hole by it that is messed up.

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Hey /diy/. I have paintball parts. (HPA tank, high pressure regulator & hose) and a gas mask. -IF- I were to connect the 2 (via an adapter for the 40mm mask) and try to breathe through it, what are the chances it doesent work or I rupture my lungs? Pic semi related, some of you guys faces after reading this post.
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>>990172
masks are supposed to release pressure from the inside to the outside
others only filter the inputs with no regards of pressure differential
nothing will happen unless the mask you are taking about is a diving dress
why you want to do this anyway? the tanks of those marker/pistols are filled with co2. if you wanna off yourself it wont work
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>>990180
No the HPA tanks are for compressed air. What if I blocked off the exhale valve on the mask and put a one way valve after the regulator? So that there'd be low pressure air, and it'd only be pumped into the mask when I inhaled? And im not trying to off myself, just looking for something to do with these spare parts.
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>>990183
Or better yet I wont even block off the exhale. So when I breathe in the valve from my air source opens, and when I exhale the exhale valve opens and the other closes?

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So I live in military housing and want to replace the counter in my bathroom because it's ugly as hell. Problem is, being military housing, I can't do that. Is there a way to lay something thin on top without damaging the permanent counter? I was thinking of doing a sheet of copper but I have no idea how to attach it.
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Copper is malleable, just bend it around the edge, the bigger problem you're going to have is corrosion
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>>990105
This. Copper is gonna start going green on you and it will start transferring to stuff you put on it. It will leave marks on the bottom of coffee cups and such. It will get nasty fast. Don't prep food on it unless you don't mind it tasting funny. Wont make you sick though. You'll have to coat it with something. Also, have you priced out a shoot of cooper of that size?
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>>990071
Why copper? It's expensive and soft and will corrode. Get a thin sheet of aluminum or even plastic, like 1/8 or 1/4 inch, that'll be cheaper and easier. Where can you even find a sheet of copper?

hey /diy/,

I have some old kitchen drawers that i'd like repainted. Question is, can I use wall paint or is it not safe for food utensils?
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>>989959
oil based paint is best unless you can get your hands on some lead oxide based paint. anything else will give you cancer.
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>>989959

I assume you're painting the entire drawer and not just the drawer fronts if you're concerned about contact with utensils. The best paint I've used, although expensive is called Reclaim. Its around $120 per gallon, but I only needed one gallon for the kitchen drawer fronts and cabinet doors i did. Its very forgiving if your prep and cleaning of the cabinets isnt perfect, especially on old grease covered wood. Its super thick and self levels pretty well so it doesnt show brush lines or roller marks,...
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>>989988
I just wanted some information about whether wall paint is safe for contact with utensils. I'll look into your product tho.

Is there anything on the label that would indicate it's safe for being near edible products?

File: ESP8266-PINOUT.jpg (62 KB, 800x451) Image search: [iqdb] [SauceNao] [Google]
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Hi,
about 7 hours ago i was experimenting with a (faulty) esp8266.
I noticed that sometimes it freezes and doesn't boot properly, the red led (that states it's ON).
I thought it was a power supply problem, so i used a atx power supply.
The esp8266 was powered with an AMS1117 3.3V linear regulator, that can provide 1 Ampere of current.

Now that's the problem, the module had the same faulty behavior.
I touched it's antenna (sometimes after this it started working properly) and i felt a tingling sensation in my hand. I then tried again...
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Errata corrige in the third line:
"I noticed that sometimes it freezes and doesn't boot properly, while the red led (that states it's ON) remained off"
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>>989956
Oh yeah, they can be random.
If you haven't, add some caps as close to the power pins as you can. It's very jumpy with the power and some filter caps solve most of the instability issues.

Also, look up some range tests on youtube for it. It's a bit scary.
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>>989956
wouldnt it burn before doing any sort of damage to you? i mean, if it was really doing that 3.3w transmit with no heatsink it would most likely burn pretty fast, right? (isnt that chip power rating about 100ma or so?)

>transmit data is like ac @ 2.4ghz
>low voltage ac tingles
can this be your explanation op, i mean the antena is bare copper

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Hey! The guy who ordered the low angle stanley jackplane. How is it?! Im sure you've got it by now. Ive been waiting for you to post about it by now.
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Yeah it's alright
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No it's awful
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>>989947
no strong feelings one way or the other

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Need a bit of help with a pump.
There's some small clips that hold the impellers onto the axles of the pump to stop them sliding up and down. The outer one on either side of my pump is gone and I've no idea what the type of clip is called to search for it.
Anyone have any idea?
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The clip looks like this. The impellers are sliding out and getting jammed without the clips there
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Looks almost like a window handle clip, though for your purpose you should be able to use something like a snapring in its place.
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looks like of of those springy hose clamps that go on without tools.

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Has anyone here gone through the patent process themselves? Have any tips?

Don't say InventHelp. Their program is a huge fucking scam.
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Read lots of other patents of similar products.

Get a slippery as fuck lawyer.

Have lots of money.

Pray that another patent doesn't get approved during the 2+ years time it takes for yours to go through.
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If you're a university student, there is guaranteed to be a professor or other faculty member somewhere experienced in the patent process.
Just ask anyone that looks like they've been around for a while and they should be able to point you to someone that can help you.
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>>989904
Also it doesn't need to be in the same college.
Go look in the college of engineering, business, etc.

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We want to build a scaffolding for our campground.
In the middle shold be a fire and we want to make it as much cost efficience as possible.
Tipps to do it better?
Help me /diy/
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>>
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>>989757
the most cost effective is no scaffold.

why don't you tell us what exactly are you doing here

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I have some oldish mobile audio that I have no idea what to do with. I don't want to install it in my current car. Any ideas, friends?

1x10" 500w woofer and accompanying amp
1x500w speaker amp
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>>989594
Cymatics my old son
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>>989595
Can I run a 12v 500w amp from an of the shelf wall wart?
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>>989601
Sure.

If you can find a 42 amp wall wart.

Unless you have a pretty beefy computer power supply lying around your best option to power that sub is probably just buying a home audio amp or receiver. You could just run the car amp off a 12v battery inside but that would be the niggest of rigs and you'd have to charge the battery and shit.

Im planning a DIY project for some interior accents. I plan on soldering brass foil tape to glass to form a terrarium. I'm capable of doing this. My holdup is I have no clue where to begin looking for custom glass cutting service who also screen or silk prints onto glass. I can could cut the glass by hand and have it sent in for printing but id rather have it machined and printed. Anyone happen to know what I should be searching for? Is there a specific name for this service?
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"dremel glass tip"
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The sad truth is your not capable of much, if you are here asking stupid questions that you could of just googled.
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>>989548
I'm taking out of my ass, but can you laser-engrave glass? You could go to a makerspace or uni or friend with a laser cutter

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So I have found myself a new hobby. DIY Books.

So far I have worked a little bit with thermal binding and plastic rings, but I want to craft real books now. Does anyone else bind books on /diy/? And what method do you use?
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I really love the old world style of printing and book making. Classy as fuck.

There are a few good videos about it on youtube.
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>>989538
I used to make them by getting the block of paper set up between two thin bits of wood, then clamping them down firmly- mark out the holes about 5mm-1/4" from the edge and then drill holes along the length with a small (generally 2mm) bit about every 1cm or so. Then take the boards off, get waxed cotton and bind the core of the pages together with a ringbolt hitch down the length.
Nice thing about the ringbolt is that its got a bit of room so you can either sew the spine to it or it'll have enough 'meat'...
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Perfect binding with a binder clip and some pvc glue. Easy but very useful if you have loose papers you want to bind for any reason.

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Eagle or Kicad and why ?
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>>988958
anyone ?
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>>988958
Kicad
Free
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>>988976
im more interested about usability.

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The soles of my shoes have dried out and become porous, and developed cavities/holes. I can't keep wearing them until I've fixed the holes. How do I do this?
I thought about just filling the holes with wood glue or something, would that work?
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Dude, just buy new shoes.
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yo just fuckin get some leather and make some goddammit moccasins if you ain't got anything besides those shoes I made a pair in like 45 I used gorilla glue to hold it together I wore it all winter
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>>988799
I'm not going to buy something new of anything if I can fix what I've already got.
If this doesn't work, then I'll buy new shoes.

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Got some heavily corroded bolts on my toilet seat hinge.

What's the easiest way to remove them?

Tried
-Plenty of WD40
-Melting the plastic nuts off, they're positioned in a way thats too awkward to reach so I gave up
26 replies and 3 images submitted. Click here to view.
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>>988729
Dremil with a little cutting disk.
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Cut/grind a slot in them and apply a large slotted screwdriver with a big bar on it.
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Hack saw with the blade on the 45 degree angle.

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I have a burnt fuse in my LG g3, decided to try to fix it myself, but I can't find the part anywhere in Australia.

https://www.encompassparts.com/item/10393296/LG/EAH62172601/Diode,_Tvs

That's the part I need, but I can't find anywhere in Aus selling it.

I'm a bit of a poorfag though, so I'd rather fix it than resort to buying another phone. Where can I find this part?

Pic related is the g3, it's the little black square next to the micro USB
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Have you got a schematic of that part of the circuit? If its simply a crowbar diode you should be able to use something else.

How did you blow it up?
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>>988292
I'm guessing it was a bad charger, I'm going to throw out all my cheap chargers soon and only use the reliable ones.

I just woke up one day and the battery was draining super fast (flat in 12 hours standby) and the phone was warmer than usual. Opened the back out of curiosity and saw the burnt ic. Not sure if it's clear in the image though.

And I think so, I'll check the service manual.
>>
You should be able to just replace the whole USB board for a few bucks.

My nephew got hold of my coffee stirrer and bent it out of shape. Now I can't get it centered, so it wobbles like crazy and it cant stir worth shit.

Any ideas how to fix it?
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Shove it up your nephew's rectum, switch it on, then go buy a new one.
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>>987654
use one hand to bend it back, another hand up your ass
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>>987654
More wrist action, you know, like a spoon. It'll take seven second longer to stir your coffee, but you'll be able to brag about "roughing it."

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Has anyone done a DIY tattoo? If you have share experiences and pics thanks
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i did it in my parents bathroom as a teen with india ink and a sewing needle
it was 100% not safe but i didn't have any infections. however, it faded like mad so if you get it on the finger like in the op pic you're better off drawing it with a sharpie. I put my needles in boiling water for an hour and basically soaked them in rubbing alcohol to cool them down. I used piercing antiseptic for the aftercare.
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>>987252
Yep I've got one it's of a crab/spider.
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>>987330
pic of said crab spider.

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OK diy WiFi question:

I'm a TWC customer with the 300 mbps package on a netgear nighthawk.

What's the best method for sending a signal over 300 ft?
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>>986953
No way in hell you're going to get the 5Ghz band to travel 300 feet.
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>>986955
Even with a parabolic antenna or directional antenna?
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>>986959
How many walls will the signal have to go through?

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How many of you guys have experience with modding a mechanical keyboard? I'm rocking a Steelseries 6GV2 (for 2 years now) and I still love it so much.

I really love the completely blank key caps on modded keyboards, but they are expensive and the enter key is sold nowhere (its this long enter thingy). I thought maybe sand the key caps and spray paint them. Maybe some more ideas I could do?
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Is there any purpose to blank key caps?

Aside from acting smug and elitist when someone not very familiar with computers tries to use it, of course.
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>>985881
Is there any purpose to coloring stuff outside of color codes?
>>
>>985881

Faster learning how to blind-type.
Not OP btw.

Someone suggested I cosplay Onion-San from Undertale and I concluded it was an utterly ridiculous idea: The outfit would be the largest and crudest thing ever seen at my local convention.

So naturally I accepted the suggestion.
I think that the best way to go about this would be to make some kind of inflatable octopus costume..
But the problem is that to not have the tentacles drag on the ground I would probably need some air escaping, and to have air escaping I'd need to be carrying a battery and an air pump, which sounds impractical.

How realistic is this idea?
31 replies and 3 images submitted. Click here to view.
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to not have the tentacles drag on the ground I would probably need some air escaping, and to have air escaping I'd need to be carrying a battery and an air pump
https://www.youtube.com/watch?v=rHXvMcLrLSY

But seriously, how big are we talking here? There are a handful of electric-blower inflatable costumes out there already. Here's an example of a blower that runs on AAs: http://www.yardinflatables.com/Replacement-Fan-for-Inflatable-Costume_p_2178.html
And the sort of costumes it goes with: http://www.gemmy.com/Airblown_Inflatables_Costumes_s/1848.htm
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>>983954
I'm willing to invest in a good pump since I've been looking at making a furnace, though I don't know how long that would last if I used the biggest battery practical to carry (A car battery for example if that can be somehow used for a pump).

Size of the costume?
As big as is reasonable, it's a fairly large character. Definitely bigger than any of the costumes in that link.
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>>983955
>I'm willing to invest in a good pump since I've been looking at making a furnace
I'm not sure what sort of pumping demands a furnace requires, but these inflatables operate at very low pressure and high volumetric flow rates. May or may not be compatible with your furnace.
>I don't know how long that would last if I used the biggest battery practical to carry (A car battery for example if that can be somehow used for a pump).
Alright, well let's see:
http://www.yardinflatables.com/Gemmy-Replacement-15a-Fan-With-12v15a-Adapter_p_1867.html
At 12v and 1.5a, you could run it off a 15 AH lead acid battery for 10 hours straight; such a battery would weigh about 13 pounds. Alternatively, an equivalent capacity lithium pack would weigh about 5 pounds.

Now, the inflatables this pump is designed to work with don't have external air jets like you're describing (that is what you're describing, correct?). Implementing jets would be a pretty significant risk, since you can't really know how well it'll work until you try it, and once you do try it, patching the jets up again if they don't work will only make the arms heavier and more saggy. If you have a ton of time, I MIGHT consider trying it; otherwise I'd just do my best to build the costume without them and maybe use fine thread or something to suspend the arms (or just pump them up enough and keep them light enough to stand on their own).

File: 20140528__0601storage-4.jpg (99 KB, 645x515) Image search: [iqdb] [SauceNao] [Google]
20140528__0601storage-4.jpg
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I want to build my own energy storage, did any of you ever made one. Essentially I want to create a battery which I would charge with my PV, and use in peak hours. I am more interested in the process and things that are necessary to look for and problems facing while doing the project.

>buy a powerwall
I want to know how to make one and is it more feasible to build or just buy it.

Questions that I have is, what batteries are more reliable, Zinc-Bromine flow, Li-Ion NCA/FCM, Li-Ion Ferid, or supercapacitators?
36 replies and 4 images submitted. Click here to view.
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Enjoy your net loss unless you have retard high power costs.
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Slap some solar panels on that bitch, "net loss" my ass
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>>983224
>Enjoy your net loss
please elaborate, how much would I lose

File: IMG_20160418_111842.jpg (61 KB, 1078x698) Image search: [iqdb] [SauceNao] [Google]
IMG_20160418_111842.jpg
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Lockpicking Set. What should i use and how?
55 replies and 12 images submitted. Click here to view.
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File: lock pick set.jpg (154 KB, 954x575) Image search: [iqdb] [SauceNao] [Google]
lock pick set.jpg
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File: petroldrill.jpg (16 KB, 413x340) Image search: [iqdb] [SauceNao] [Google]
petroldrill.jpg
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For all practically picking sets are obsolete, better off drilling, pin snapping or punching out the lock.
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Lockpicking is not very difficult. There are Tons of Videos on YouTube


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