I need help finding info on an ic chip. The two burnt ones are the same as the two next to the other gray chip. It looks like they read 4406 bd5d26. I cant find any info on them. Any help would be great. If anyone know the manufacturer that might help.
>>1047847 First thing you can glean from the board is that each ic contains a single mosfet. Why? because there are only three connections to the ic (all four pins on one side commoned up, three pns on the other side commoned up and one lone pinon the same side). I'll take a look around and see if I can come up with more info.
Sup /diy/ I'd like to make a small camera to screen device, preferably with the Arduino. Something "simple" really, a camera outputting to a small screen through an Arduino. Problem is, there are quite a lot of models, and I'm not sure which to choose from :( Any help ?
I got some advice from a friend, he told me I should first should the camera, then see which Arduino interfaces with it. Then pick the one fitting the best for my needs (Input/output options, computing power)
>>1047741 >yet another thread where the brainless OP does not tell us where he lives For retail, check here: ul.Górecka 164, Poznań, Poland. If you prefer A4 rather than A2 (although the latter are sufficient), then try Powstańcza 7/1.
However, I'd recommend you to by an ericsson (or similar) nut instead. It's easier to control than your round coupling nuts.
Hello /diy/. I am looking for help to build some clocks as a hobby. I did some online searching for clockwork kits but only found tools, no actual "build it yourself" clocks. I have a feeling I may have used the wrong keywords or something but I cant think of what I did wrong.
I am also looking for programs that I can use to sculp the pieces of machinery in 3d on my computer and maybe tutorials on how to use said programs. This relates both to the homemade clocks I want to build and some other projects for the future. I tried Blender but it seems more geared... Comment too long. Click here to view the full text.
>>1047637 I always just use my 66 tool but I believe those were actually designed with screwdrivers' in mind. Lay the red wire across one of the slots in the metal strip for the red and push across the wire with a screwdriver on one side them the other.
Don't touch green or ground unless you want a little tingle. Or go unplug your wiring at the demarc before you work on it.
In a nutshell I have a charging station for a battery currently, but as of now the batteries can only plug into the one 4s slot. So what I've been doing is plugging them into two separate boards each with their own balance to my DC supplier.
So I was wondering where can I find a board with 3 of these "4s" ports with two balances to my DC supplier so I can have a nice efficient way of doing this.
Sup /diy/ long time lurker here, but just recently i made up my mind brought home half a pallet that was lying around on my grandad farm and salvaged as much pieces as i could to make a spice rack gift for the qt3.14 , one large heavy duty screw holds the whole damn thing in place and larger wood screws keep things falling from the sides, just wanted to share it with you guys
I put this 6x6x4 inch waterproof electrical box on a tall square pole and put a POE switch inside it to power a few security cameras. I drilled a small hole in the back to get power and 1 cat5 cable in, as they ran through the internals of the pole. I then punched the hole out of the bottom for the wires from the cameras to enter it.
Am I paranoid to have liberally caulked the entire box and elevated the switch as far from the hole as possible? I don't even want the humidity in the air to enter that box.
Is anyone else as big on waterproofing, or is this overkill?
Anyone know anything about ordering PCBs? I'm familiar with electronics but have always built projects on breadboard or veroboard. I wanted to order a few PCBs for an Arduino shield and downloaded all the files from the original designer. The gerber files are all in a zip and I uploaded this to the PCB manufacturer. They've told me they can't produce it as there's no board outline. I've 7 files in the gerber zip(it's a 2 layer board). They're copper, mask and silkscreen for the 2 layers and a text file for drilling.
Is... Comment too long. Click here to view the full text.
>>1047543 pcb house will usualy give you a guide as to how they do things, sometimes they want a mechanical layer with board outline and reference hole, sometimes you can put it on the silkscreen or copper layer.
Honestly unless it's a hugely complex board, I'd just etch it myself. Double-sided isn't that hard and only needs a little more thought in terms of through-hole vias. You can't soldermask or silkscreen it easily yourself, but I've made arduino shield prototypes myself, to test the design before going to a fabbery to have a run of them made.
By board outline they possibly mean a boundary box for the size of the thing? Usually it's already drawn in by whoever made the layout.
If you open a blank PCB layout in ExpressPCB (free, worth... Comment too long. Click here to view the full text.
>>1047554 >>1047551 Unfortunately they allowed me to upload my zip file of gerbers and pay and then emailed me saying they needed this outline file. Actual email says "No board outline (.GML/.GKO/.GBR) file found."
>get call from mom >lawn mower won't start >say it's the carburetor >this makes since because I just replaced it >go over, find nothing wrong with carb >spend 3 hours ripping apart fuel system looking for problem >no problem found Comment too long. Click here to view the full text.
Currently I'm trying to sort out an electronic scooter I just purchased.
200w (4000 rpm) Engine.
24V battery (upgraded from 10ah to 13ah, but it still only runs for an hour)
It can take me up hills barely, So I was thinking of upgrading to a more power-consistent Li-Ion. I believe they have a high average potential as they are used. They are expensive as fuck though, I need to attach some rated at 3.7 V and 5AH in parallel and series in order to get:
28.8V and 10ah Li-ion.
Can anyone tell me if 10ah is gonna be enough or will it be barely... Comment too long. Click here to view the full text.
>>1047503 Putting caps in series with batteries would not work, needs to be parallel. Also lithium ion is much more picky about charging and discharging and need to be kept pretty balanced. Do more research,youll probably need a battery management system to avoid starting a nice fire or wearing out your liion batteries prematurely.
>>1047503 A couple quick thoughts: --L-ion batteries will store a lot more power than lead-acids --running batteries in parallel requires diodes to prevent reverse-current in each battery --and forget the super capacitor thing too. It aint gonna work
You aren't going to put anything nicer on it, why are you trying to do something so senseless? I had a folder with a coating like that for over 4 years, daily use, and it never showed any signs of wear. You are seriously retarded if you would want to change that. No clue what you would use either, mine was terrifyingly durable.
What is /diy/'s opinion on DIY pallet houses? Are they suitable for wilderness/innawoods retreats? Or for long term/SHTF self-sufficiency even?
It seems all you really need to set the initial base up with these is some basic tools, maybe one or two volunteers and some time/proper devotion.
There's some neat possibilities here with the basic design imo considering how easy it seems to set up, for example you could build multiple units besides each other and then connect them with each other to get even more space as a result, effectively giving you a small house innawoods for peanuts which you would otherwise have to pay hundreds of thousands of bucks for
>>1047168 In order to do pallet houses, you'd have to have a ridiculous supply of decent pallets.
The real kicker is that pallets are often in questionable condition. They are either used til they're about to fall apart anyways, or they are treated with a lot of nasty pesticides/chemicals to keep them from rotting and to keep bugs at bay.
Let's say you did get some decent pallets -- at the very least they would need to have 3/4 thick slats to be worth having. Fairly clean wood, not many knots. You... Comment too long. Click here to view the full text.
>>1046989 I bought a Dremel rotary tool several years back thinking I would find no end of uses for it. 2 years after I got it I finally found a task for it. I've used it a few times since but not enough to justify what I paid. Unless you get a deal on it or something I'd wait until you need it to buy it.
I'm looking to buy a new one for my room, I have one mounted in a literal steel cage so security it's no problem, and I remember it worked silent and cool as fuck (good for me because I live in extremely hot weather all year round), some drunkard who """serviced""" it dropped it and it became loud as fuck, hence why I'm changing it.
Don't really care about aesthetics.
So here are the questions:
Electricity bill wise Sound wise Durability Service costs
I've... Comment too long. Click here to view the full text.
Any of you dudes ever DIY'd a multi-rotor UAV / Drone?
I've been looking into buying something with a good autopilot (like a Pixhawk autopilot), the 3DR Solo seems to have a pretty slick setup.
However, I've got a couple Arduino and Mbed microcontrollers kicking around, so I was thinking of DIYing something if it would be feasible to do for cheaper than the price of the Solo ($1000 usd). Especially if I can make it a little bit more robust with a greater flight time.
Also, it's fine with me if this becomes a diy drone central thread
>>1046791 I think you could def do it cheaper than 1k... I don't know if arduinos are the best route, though. Weight would be my concern (I couldn't find info on how much one weighs at a glance). Plus you're sort of reinventing the wheel; you can get a 3 axis gimbal & controller board from Hobbyking for @ $200, slap that on whatever you're building.
I have no interest in /diy/ing the actual drone hardware but I do have a massive droner for the idea of multiple drone software or better yet semi autonomous drone ai. Has anybody done this or seen it done? There are some cool videos out there of mini quadcopters flying in incredibly tight formation but afaik this is all pre-programmed and essentially choreographed.
The kind of thing I'm thinking is drone security and surveillance. Camera drones have the potential to make fixed surveillance cameras obsolete, especially if the drones knew how to land on the corner... Comment too long. Click here to view the full text.
>>1046903 OK, you're actually talking about something a little different; you're basically describing an FPV setup (with a computer program looking at the output instead of the user). I wouldn't call that practical (at all), but I would't call it impossible either. Sending output to the program is reasonably easy (maybe trivial); FPV setups use a seperate transmitter/reciever for the feed anyway. Telemetry from the craft is also doable (you can buy flight controller boards that give you altitude, GPS, etc).... Comment too long. Click here to view the full text.
I've got a dead redmi 3 pro, can't be fixed because the bootloader is fucked.
It charges at 2A and can output power through the usb because it supports OTG, and the battery is 4100mAh. Could I take it apart and build a power bank from the battery, charging circuit, and a micro USB to female usb adapter?
I want to hardwire my dashcam to a cigarette lighter socket fuse, but that uses a 20A fuse which I figure is way too much for a dashcam.
So, can I safely put the original 20A fuse in the piggyback for the original cigarette lighter circuit, and then add a 3A fuse for the dashcam? (disregard fuse colors in the diagram, I pulled it off google images)
Just hire a fucking Sherpa to go to the top for you if you want safe. It's the tallest mountain in the world, and because a bunch of rich people want to have it under their belt that they climbed it, it's become less of a feat of endurance and more a feat of spending a shitton of money to get you to the top.
News flash: climbing Mt. Everest isn't safe. Corpses are used as fucking trail markers (see: green boots).
Compared to just about any other "hobby", high-altitude mountaineering is pretty much Russian roulette. It's by far the most dangerous activity out there. Everything is taken to an extreme, all equipment is pushed beyond their design capabilities, and the climbers ruin their bodies and minds just from the single attempt. That includes Mount Everest. That ladder setup is the least of a prospective Himalayan climber's concerns.
Consider the following. For every four persons who have successfully summited Kangchenjunga, one has died trying.
>>1046517 I quit media study for woodworking. The school teaches me furniture and whatnot, which is true what you concerning the body. But now Im interring at a harpsichord builder for the second time which is the fuking best.
So learn a trade then develop a craft. Or design furniture and try to sell it
>>1046438 Why not both? You can become an engeneer and find well paid job to secure finaces. You can woodwork in your free time and slowly trasition to become a full time woodworker if you feel like it. IMO studies are better choice long term unless you already have fully equiped workshop, skills, knowledge of your local market and generally expiriece in woodworking as source of income.
>>1046517 >at the age of 50 with a destroyed body thinking... Comment too long. Click here to view the full text.
i got bedbugs somehow despite never having someone come into my house let alone my bed. i condisered tossing everything but i wanted to know some diy methods to being rid of these fuckers. ive managed to keep it isolated to one room (other bedroom is vacant) but im getting sick of dealing with it. pic related are what i keep killing.
>>1046369 With clothing, put them in the drier for as long and as hot as the dryer can go. You want the entire drum to be above 140 degrees Fahrenheit. (The hotter, the better.) Although reading up, you might be better visiting your local laundromat and using one of their dryers which should be able to get hot enough.
Unfortunately, bed bugs are one of those nasty fuckers that can live on something for years and a small enough that they can hide cracks. Your best bet is to start looking for exterminators and soon before... Comment too long. Click here to view the full text.
>>1046369 Just fucking toss it family. You will never, ever get rid of them competely unless you toss the bed far from your back yard, insulate the room and then gas all the eggs on your floor. Im so sorry for you. Get a metal frame bed so they cant infest as easily. If you need convincing just look up bedbug horror stories.
Hi DIYers, I'm currently building an extruder, and it's output has to be constant, as any speed fluctuations would cause defects to the output. What I need help with is an idea of motor/gearbox to use for this, I've thought of the motors used in cars for the windows and seats, but those are weak as I tested them and with my hands I was able to slow them down. Food mixer and food processor motors are also too weak, and a car's starter motor isn't built to work for long periods of time, and would require a transformer that would be a pain in the... Comment too long. Click here to view the full text.
Hey /diy/, I'm just visiting from /k/ with a quick question. I'm going hiking in the morning and I get my hydration bladder out if my closet and it looks like someone cut it. Anyone know of a quick fix that will hold through my hike tomorrow and until I can get a better one?
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