>>1006071 Sure, the voltage coming out of the transformer will be around 12V but it'll be AC. The fan you want to run is presumably a DC fan. You'll need to slap some kind of a diode rectifier at the input and also a capacitor to smooth out the voltage.
>>1006090 If you really want to use that fan you could either get a laptop power supply (that could supply over 80 watts), get a PC power supply (these are pretty good efficient) or if you have some watts to spare from your computer power supply then I'd just run some wires from your computer to power this thing.
>>1005566 >DIY powerbank ebay has several different variations of modules for this exact purpose, contains a li-ion charger, buck and boost converters and USB sockets for charging and supplying power... Costs about $5 a pop. >connecting a couple of these yes, it can be done, but no, you should not do it. if the cells are not properly matched (a good manufacturer sorts a big pile of them and makes a battery out of cells that are most similar) the differences... Comment too long. Click here to view the full text.
HEy guys I was wondering is there any way to make third person camera for car? There are drones programed that they will follow you but I think they will not be fast enough/durable while flying behind car. Would be nice to film some interesting routes. I thought about some stick and put go pro on it but it will be awful while turning. Any ideas?
>>1004505 Picture related but with a camera on the balloon and probably not in the shape of a missile.
The balloon should smooth out the bumps from the car, having a pole that extends from the car will vibrate and wobble all over the place and the longer the pole gets the more it will shake about. you also don't have to worry about the balloon smacking into things too hard though if the string breaks your camera is going to float away.
A multirotor would probably be able to keep up and would give you the best... Comment too long. Click here to view the full text.
Hey /diy/, I replaced my iPhone 5 LCD. I know it has something to do with the new LCD, because I reattached my old LCD and it didn't stutter like that.
Is there anything I can do to fix it? I will post next the FPC connectors. they appear fine to me but maybe one of you will spot something...?
Should I request a refund? Could it have been me, or is it the manufacturers fault? I want to say it wasn't me (of course) because the cables still work as a general rule, and that stutter, technology wise, seems to be a minor flaw. Don't know if... Comment too long. Click here to view the full text.
I'm not sure if this is the board about bicycles but I am planning on building my own bicycle and would like some advice on what to buy etc...I thought about buying a used frame and then assembling it piece by piece. The environment is mostly urban and with a little bit of off-road so I think cyclocross bikes might be the best for my needs. I'll be using it as a commuter but also for very long distances and maybe some amateur competition. It has to be very durable and with quality parts that can resist water, mud, sand...
I don't know all that much about... Comment too long. Click here to view the full text.
But since you asked, yes. get a cyclocross bike. I would specifically get a monster cross capable bike with rack mounts, like a Surly Cross Check (more versatile and more tire clearance). Get full fenders too if you're riding in the wet. My 'cross bike does pretty much everything I want it to and it's perfect for city streets with a little offroad, also good for gravel road rides in the country. With the right tires it can handle moderate hardpack MTB trails pretty well (but it gets... Comment too long. Click here to view the full text.
>>1006832 Without showing us a top-down plan of the plot and assuming you need to have all four walls equally protected, this is the best coverage you can get while still having the cameras installed on the building itself. You'd have better coverage by installing the cameras to objects outside the building itself, though.
How much money do the electrical, plumbing, drywall, ect contractors make in profit on small, new construction projects like pic related? Id be interested if there is some calculator, formula, or website to estimate things like this. Inb4 "it depends". I'm more interested what the electrical contractor makes in profit.
You're literally asking "how much does X profession make". Worse, you're asking how much a TRADE profession makes.
It's going to vary wildly depending on locale and project. The best you could do is ask around in your area (both those doing the work and those doing the hiring for the work) and figure it out from that.
What kind of valve would be good for controlling the flow from an oxygen tank using the output from arduino. Until this year I knew jack shit about electronics. Hence dunno if I should ask here in /diy/
Some friends told me to use a solenoid valve but as far as I've read, those only get you to fully open or fully close a valve, while I want it to control the oxygen flow, say 0-5 lpm and inbetween.
>>1006782 Used as the regulator, however I'm open to suggestions. What I'm trying to do is to make a valve that regulates the flow according to data from a pulse oximeter. Say, increases flow if <90% and lowers it if >95%
So for the project im currently working on im trying to figure out a way to power some LED strip lights via battery power or solar instead of using an outlet like its designed for. I wanna use these strip lights in a spot without outlet access.
I know jack-shit about electrical's btw
Pic attached is basically same thing i plan on purchasing. In total im hoping to run 15 ft of these lights (3-5ft sections) I might compromise to just a 4ft section instead tho if 15ft uses too much energy or wtv
The guy at the hardware store said i might be able to bypass... Comment too long. Click here to view the full text.
>>1006741 Bypass what regulator? Just plug the fucking 12v battery into the dc jack at the controller box. And for solar: Buy a regulator for charging the battery (12 bucks on ebay) and charge the battery with the solarpanel and power the stripe by battery.
Kind of a tech issue, but it would probably be better in here since I am going to do something myself...
Have a galaxy s3 that just had the power button die. I removed it, hoping to be able to replace it, but my attempts were futile....nothing wanted to go right.
I will try some conductive glue, when it eventually gets here. I might try to make some if I can pick up some ingredients.
In the mean time, I can still get it to turn on with the power cord (and use the home button to wake/shut the screen off), but for some reason it has been getting really warm... Comment too long. Click here to view the full text.
Unless you are really really really super human good at soldering like CNC robot arm reflow Japanese trained from the tender age of 2 to solder I doubt you can just go in to a smartphone with an iron. You fucked it up guaranteed.
Hello guys, two days agomy turtle beach stealth 500P headphones broke. I just took them from my stand, and they broke in my hands while i was putting them on my head. Less than 1 year, never fell, always on the stand or in the box. So i sent an email to them. They still not gave me an answer. Since i bet that they will not do anything, and say that it is my fault, i ask you, guys, if anyone of you knows where i can get spare parts for my headphones. On their site there is only microphone, the usb pen, or the protection for the ears.
Thanks in advance for any... Comment too long. Click here to view the full text.
In fact i'm not buying again a turtle beach product: first because they broke without taking hits, then, because there is no support. I just wanted to find spare parts to replace the broken slider, so i could keep using these headphones. You know, that piece in particular could cost few bucks, instead of a new pair of headphones that should cost around 100.
>>1006411 2 pack polyurethane is about as tough as it gets and will protect pine very well. For the Jarrah, its pretty damn tough to begin with against bugs and rot- so its a bit of a much-a-much if you think its worth it. I reckon decking oil could be ok if you're after something decorative but with fences that's a lot of work.
I bought 100 of some 400V diodes for $10 to experiment with audio applications, but it turns out the forward voltage is way too high. Should I buy 100 of 400V 1µF electrolytic caps and make a Cockroft Walton generator? Will this work with 240VAC mains?
>>1006319 >Should I buy 100 of 400V 1µF electrolytic caps and make a Cockroft Walton generator? Sure, why not? Will this work with 240VAC mains? As a guy who has made several Cockroft Walton multipliers I can tell you it will work, however those multipliers tend to fail quite often, specially if the diodes cant withstand high peak currents caused by the capacitor discharges, I usually tend to go towards higher frequencies and lower capacitance to avoid that.
>>1006337 I forgot to mention, there's a point when adding more caps doesn't increases the voltage anymore. Capacitors are like walls with membranes, you can shout at one side of the membrane and be heard at the other, but when you start adding more and more the energy is lost between the membranes.
100 capacitors is probably an excessive amount, I wouldn't use more than 50.
Here's a guy that made it with 100 capacitors anyway.
Despite a lot of /diy/nasaurs shitting on me for wanting what project I can do with shipping pallets, I have this. I love how it turned out and I am pretty confident that if I wanted to, I could sell it for a decent profit. Maybe. ANYWAY What have you made recently, /diy/? Share your projects and stories.
I understand that from a efficiency standpoint, a plain ol' diesel generator will be much better than a turboshaft for electricity generation. However, just for the novelty of having one, I'd like to build one on the long term. What kind of tools would I need to make the blades and such? I'm assuming they need to be cast or milled for strength, and there's a limited variety of materials you can use, at least for the combustion section.
>>1002120 >I understand that from a efficiency standpoint, a plain ol' diesel generator will be much better than a turboshaft for electricity generation. A /diy/ turboshaft, yeah probably. But more generally-speaking, nah. Aircraft turboshafts/turboprops are fairly inefficient since they prioritize power-to-weight and reliability over raw efficiency, but marine turboshafts and those gas turbines used in power stations can beat out pretty much all "plain ol' diesels," with... Comment too long. Click here to view the full text.
>>1002213 thanks for the links I could probably get into casting them, since 3d printers are pretty cheap nowadays, I'd just have to make sure to balance it properly which would be hard. To start with, I think a automotive turbo would be the best to start with just so I don't have to fuck around with casting or welding shit too much.
So i wear 50mm goggles at work because they seal better around the eyes and i can wear my headphone earmuff things i made without painn in the ear, anyways i need a way to cut out lenses from sheets of plexi i have, any ideas?
>>1001313 >So i wear 50mm goggles at work because they seal better around the eyes and i can wear my headphone earmuff things i made without painn in the ear, anyways i need a way to cut out lenses from sheets of plexi i have, any ideas? Plexiglass (acrylic) is totally wrong for safety goggles, because it shatters when it fails. ,,,,, If you INSIST on making your own safety goggles, then what you want to use is polycarbonate (Lexan). Get a sheet about 3/32"" thick, and then you... Comment too long. Click here to view the full text.
Is the wooden platform sturdy enough? Is there a better way to do this? other than buying metal shelving at $70 a piece and at a smaller size. Plastic is $30 and the casters would be $5-6 each? I will be putting mostly light stuff on them eg. cleaning liquids, assortment of nuts and bolts, etc. All of this on a flat smooth surface of course.
Hi /diy/kes. I am out of school for the summer and I wanted to know if I can make a sailing boat out of materials at my dads junk yard. He is lett8ng me have a 25foot shipping container and all the pallets I want. I am worried about heat tho so how can I make a fit air conditioner for the cabin.
Given that you don't care about thread strength and it's not a very deep hole, there's no reason to really prefer either in your case. You should be able to form tap with a thread that small in a material as soft as aluminum.
You'd REALLY have to be trying (or be using a really shitty tool) to break a tap in aluminum. Assuming you're using tapping fluid, anyway.
>>1006195 rolled threads are mechanically stronger, but the taps would require more torque for forming the threads. I wouldn't recommend applying torque by hand in this instant. Try placing the tap in a mill, drill press chuck, or tapping jig/station and use a wrench/key/lever to rotate the tap thus preventing you from bending the tap sideways. t. machinist.
Hey DIY, My first thread/post ever so I hope I didn't fuck anything up. So I'm trying to create a synthetic ruby using the flame fusion (Verneuill process) method. I was thinking of useing a Oxy-hydrogen torch for melting as well as using the purest materials I could find. I was wondering if anyone here has any experience with flame fusion. I'm also looking for a way to make a hopper for the alumina but I have no idea how to tackle this. So I'd like to hear what you guys think (and if its even doable)
>>1006191 Hi! I see you've posted your forced meme in a valid thread again! As a proud member of the /diy/ community, I appreciate your concern and efforts to self moderate, and on appropriate threads I applaud it. However you seem to have misread the OP in this case and gone ahead and posted it in response to a perfectly acceptable thread. Whoopsie! Remember that as long as the thread isn't breaking any rules and isn't obviously bait, you should rather just ignore/hide it if you don't like it. Thanks for making /diy/ a better place!
>>1006164 Look at grain and flour silos and how they feed into trucks should be good enough.
As for the flame wouldnt that blow a bunch of the powder away? Ive no real knowledge about what your doing but im sure going with a element in a circle and dropping the powder in the middle might be a better idea
Is this legitimately a way to make rubys? And whats plans do you have for them afterwards?
Around how much money would it be to build your own partition wall? I want to build one in my basement, and I'd rather not have to pay someone, and I've heard that building just a stud wall and putting sheet rock on it is extremely easy.
How much is it in materials, and is it worth it to pay a tradie to do it?
Hey /dyi/, anyone have suggestions on how to stretch out a snapback hat? Unfortunately its too small for me and I'm going travelling soon, so it would be nice to have a hat that fits, any help is appreciated!
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