I'm already decent at soldering. Pic related is NOT my work. However, I rarely solder anything smaller than 0.22 wires, and I would like to go smaller than that so that I can work on PCBs as well (In particular, I need to solder a few microUSB ports at some point).
Which tools are needed for this? I've heard something about using UV light and special resin to perform solder jobs on this scale. How does the technique differ from regular "big" solder jobs?
>>1034148 >UV light (...) to perform solder jobs on this scale. lol... it's infrared, not UV, and it's professional, definitely not DIY budget. And you don't need it until BGA/WLCSP, and to be honest, for DIY-purpose hot air still suffices.
You can use normal tools, in general the differences are: a) Forget about soldering gun (i.e. transformer-based tool), use a soldering iron. You need higher precision; the tip needs to be no more than 1.5mm for a microusb. b)... Comment too long. Click here to view the full text.
>>1033790 >>1033794 Also, I have a 60 degree, and I've tried doing it backwards, pointing it facing the camera while in front of the screen, and it detects the light at the points but won't respond as a mouse.
>>1033637 You can solder the plugs yes, but I don't think you want to do that. First check if the cable has continuity (is one end electrically connected to the other end?). Then figure out why it melted.
I doubt it melted just due to ambient temperature, the cable is probably unable to handle the current safely (self-heating due to load + ambient heat = melted shit).
>>1033611 do it yourself BUT talk to a few other friends and/or neighbors and rent a machine from from home depot or something that's what I do every year (there's like 5 of us in this) this way you pay a few dollars for a decent machine a few beers and everything will run smooth!
Quick question regarding schematics. I'm fixing the power board from an old tv and 2 traces have been torn out of the PCB where somebody pulled out some bad capacitors. I'm planning to just make a connection with wire but I'm a bit confused by the schematic.
The 2 caps in question are C863 and C851. They are both missing traces from the negatice side. Am I right in thinking that the bar symbol they're both connected to is common ground and can just connect them to any other common ground point?
They are indeed supposed to connect to a common GND, but that common GND is explicitly different from chassis GND. You can likely tie the negative leads of the cap to any other node indicated with that thick bar. Try to keep the leads as short as you can and make sure there is not voltage on the caps before working on it.
Use a credit card or metal strip with a notch on the side so you can slide it behing the latch, jiggling it a little will make the latch retract pressing the card against that angled surface of the latch will cause a force that pushes it inwards, allowing you to open the door.
I'm setting up an old turntable - new amplifier system and I'm looking for some cheap yet good options for the whole phono amplifier thing. Is there even such a thing if there actually is, what would you suggest?
>>1033566 Lm833 is a pretty decent OP AMP if you're interested in building your own phonograph amp. Just get two of them, use 1/2 of each to make a buffer amp, then use the second half of each to make an amp with adjustable gain. If you really want to get fancy, add a couple of caps and resistors to make the RIAA filter on the gain amps.
The circuits are really simple and straightforward to build. You'll probably spend more time on the custom enclosure.
I have one in my new car but STUPID FORD thought it was a good idea to have all the 12V outlets in the car run all the time! This means that either the camera runs continuously (and wear the card out and drain the battery if I don't drive the car for a while) or that I have to remember to plug/unplug it every time I start/stop the car. I need a work-around. BUT All the easily accessible electrics/electronics in the car run all the time (12V outlets, ceiling lights, glove compartment light) or are too complicated to get access to their power supply (radio, dashboard,... Comment too long. Click here to view the full text.
Hey /diy/ quick question .... is home casted aluminium safe to eat and drink from....? I really want to cast an Al cup but I'm a bit sceptic about drinking from it... I will cast it in greensand and the Al comes from soda cans....
I just started a stationary hobby. I bought a Pilot Metropolitan fountain pen. I Also would love to buy a7 envelopes but i cant find a7 letter paper that is long enough to fold into 3 equal parts. The image posted is the image used to create a solid brass wax sealer. suggestions and images of stationary collection would be very much appreciated.
>>1033397 Maybe i should just go with a bigger size? a9? The reason why i want a7 letter paper long enough to fold into threw equal parts, a big enough sizes for writing, is because i plan to seal the paper, not the envelope, with wax. That way i can ensure the wax survives the mailing process. I also have my mail hand cancelled.
>>1033387 Thwre was actually a very long (though poorly funded) study on this. It was called Ireland. And no, not for long. Add beans, longer, add milk/butter and even longer than that. Check the gardening thread in /out/ for related info. Also /diy/ is pretty slow, no need to bump
Hey /diy/, I'm looking forward to getting a well secured safe for the nearby future. Should I get a wall safe and install with security screws, a time delayed one, or should I go with one easy to grab and pick, but with fire protection? I need something good to keep unique things in securely as I need to relocate things from a unsecured method to a secure one. Can /diy/ makers give good security advice?
It really depends on what you're trying to keep safe anon. I install close to 700 safes a year for businesses and a few home clients. Typically you just need to have an audible alarm and a way to keep the thief busy long enough they give up and run.
A good team of smash and grabbers can break into a place, and break into a safe and be gone in less than 4 minutes. Keep them there longer, with an alarm going off for the building, and they usually spook. Avoid safes that have two well pronunced hinges on the outside. Many older brinks safes have that. And they take less than a minute to open with a grinder. Piano hinges are where it's at. Also, internal hinges when possible, but that's more expensive.
Time delay safes are okay, and mainly what I install for businesses. It leads back to the whole keeping robbers there until they spook. Most people are going to have a fireproof safe for their important documents, not so much for money.
I have some questions about a propane burner I've been building. I have a setup for a propane burner that reads about 30 PSI when closed, and I think a little bit under 10 PSI when it's closed. But when I open it and try to light it, the propane blows out the flame. My guess is that there's too much propane and not enough oxygen. The setup works at 20 PSI or so, but goes out if I point it into an enclosed space like the inside of my furnace. I was thinking about using a hairdryer to add extra oxygen, but what is the best thing to do in this situation?
>>1033234 Sorry anon. Not a lot pf experience with propane but I hear this works well with it. I have my own modified version for a medium sized foundry. I have burned used motor oil, gasoline, and diesle from it so far.
I think you can build a cheaper natural gas or propane burner.
I know this is kind of a strange question, but does anyone know where to get the component used in the 3DS for the circle pad, or something similar? Just for fun I am playing creating an input method that cannot be keylogged and that faux-joystiq has both the sensitivity that I would need and a nice low profile.
You don't need a pre apprenticeship course. You need to get an apprenticeahip, though. Many smaller companies would rather take a person with a decent amount of experience in construction than a kid that got out of school.
Around here, during apprenticeship you do have to go to school for 2 months out of the year until your apprenticeship is completed (4 years on a 40 hr work week). It's bullshit as you don't learn jack shit and have to pay for it. It's a cash gtab.
>>1033174 Depends what it is.. You can actually become a master in a trade by just doing it and having experience and a good portfolio.. Most trade papers just say "you studied under so and so, for 2 years and they are writting off you have learned enough."
Hey dudes, I was planning to make a micro-grill. I was gonna take a metal box o cookies pic related, and take bamboo barbecue skewers wrapped in foil and poke it through the box to form a grill. Only problem i've seen is that apparently foil is unhealthy. any alternatives i could use to make a grill?
Pretty sure any plant based material won't last more than 30 seconds under a flame. Wrapping it in foil will only create charcoal (I think). Get yourself some stainless skewers or something like that. The paint and other coatings on the tin wouldn't be very healthy to breathe when they melt as well.
All around bad idea but an ideas still an idea so go for gold. As long as you don't die you'll learn a valuable lesson.
I'm currently trying to control a load (requires 12V and something like 1 amp) with the logical output of my Arduino Uno (0-5 V, probably a few hundreds milliamps.). The emitter power supply delivers 12V at up to 1.5 amp.
So I have a few questions.
1) I guess my transistor must have a max. collector current above 1 amp (maybe more, to be sure) ? 2) This collector current must absolutely be limited by a resistor, right? But the voltage and current limits make it so that the resistor would be reaaaally low. Is there a solution? No resistor? 3)... Comment too long. Click here to view the full text.
>>1033005 There are a couple of different types of transistor configurations, and the difference between them is how much current you will need on the base to activate the switch. In a typical transistor, the amount of current needed to put it in saturation mode depends on how much load you are switching. Since you are using an arduino, I would recommend a darlington transistor because you can only apply 40mA of current from any output pin. Use something like a TIP120 or TIP122.
As far as current limiting the load, you're... Comment too long. Click here to view the full text.
A TIP120 has a max collector current of 5amp, and my power supply won't go over 1.5 amp (which is alright for the load). Does this mean that i don't have to use any resistor in my circuit? Like logic output goes to base, power supply Vcc+ goes to Emitter, load between ground and collector?
>>1033011 Also, depending on what it is that you are powering, the load itself may be able to limit the current. That is, the load may only draw as much as it needs, so no additional current limiting would be necessary.
I think TIP120 is rated for something like 10A, so you shouldn't have any problems overloading that device (just be sure to put a heatsink on it), so as long as your device doesn't instantly self destruct when you apply the power supply to it without a switch in the middle, it should do fine... Comment too long. Click here to view the full text.
>bought a house a year ago >one year home warranty included >decent HVAC performance >didn't renew the policy >decided to check the system though it was cooling but not as much as I wanted >low refrigerant, small leak in the evaporator (small enough that I'm losing about 1-2 lbs a year, at least that's what I calculated) >system is charged... Comment too long. Click here to view the full text.
>>1033358 OP here. The system will run fine until at least next summer (unless something happens to the hole to make it bigger) or, worst case scenario, end of summer (there's not much hot season left). I'll probably start the warranty in September-October to make it less obvious I'm concerned about the AC. Fuck it, if anything else breaks in the house I can fix it myself but I don't want to touch refrigerant systems. I wonder if there are warranties out there just for the AC part of the HVAC ...
Custom controller help needed. My brother recently had an operation to remove a tumor from his brain which they managed to remove successfully but they also had to scrape dangerously close to his spinal cord, because of this he now has very limited use of his right arm and leg and lost most of sight in right eye but he is walking again with crutches. Anyway, enough of the sob story, I would like to make him a custom controller for xbox 1(or ps4/pc) Ben heck has stopped selling his one handed controllers and I think they were very expensive anyway. I'm thinking... Comment too long. Click here to view the full text.
This is a good thing you're doing, OP. I'd start by buying 2-3 controllers and taking one apart. Check how everything fits together and which wires go where. Then, just create the input system you want (if XYBA will be his foot, then four switches) and link it to the place where the thing you're replacing goes (wire from the foot switches to the PCB or whatever, i know nothing about xbox controllers) You'll probably need to do some soldering. The extra controllers will be useful for parts. Other than that, ask specific questions in electronics threads
So i recently made my own Ikea Kallax look a like shelf out of some spare wood, would it be possible to paint it in the true Ikea Kallax color without people noticing any difference in color between my home made shelf and Ikea shelf if they are standing next to each other?
>* IKEA made the sides of Expedit 50% thinner, and renamed it Kallax. They call this 'Being Environmentally Friendly'. Be interested if McDs (random example) would get away with this BS unchallenged, or is it only Swedes?
>>1032239 >>Will alcohol affect the metal No, the casing is brass. A couple washes with soapy water and alcohol will get rid of any lead/combustion residues still lurking around. Pretty much any cleaner that doesn't have ammonia will do. >>Is there a coating, resistant to alcohol, that I can use on it Something that isnt't water- or ethanol- soluble. Only thing I can think of off the top of my head is teflon, but that shits too complicated to... Comment too long. Click here to view the full text.
>>1031869 I dislike bagged and tire builds. I prefer traditional methods, masonry, cob, sod, adobe, slate, thatch, and timber. The instant you start putting plastic into it like those polybags or rubber like in rammed-earth in tires constructions I dislike it for a number of reasons. I also dislike straw bale construction.
I however to like their method of placing barbed wire between the bag layers to help anchor them in place prior to covering it with cob/adobe and they are good for emergency shelters as advertised.
As... Comment too long. Click here to view the full text.
Hello /diy/ I've been very interested in creating a backyard stack smelter (charcoal,charge,charcoal, charge, etc) and I've been watching/ researching info on how to make such a thing happen. Are there any /diy/nosaurs that have created anything similar that can give me any pointers, pictures,and designs that work the best. I'm trying to keep this under about $100 for all of the bricks and material which I believe is iron oxide(Fe3O4 or Fe2O3). Also Bloom/Blacksmith general.
Op here, I'm surprised that no one has done this, and especially with primitive tech doing something like it last week I'm surprised it didn't ring up a huge amount of interest in it. That's why I even posted this thread, to concentrate all that interest into the actual topic instead of fighting over that sexy aussy
I'm in over my head with this one and an electrician is not an option. This junction was on a wall that I removed in my bathroom and had another box Frankensteind to it. It's two switches, light and vent fan , and a GFI plug. There's a wire going to a plug in the next room over. There was two wires going into it I'm assuming are the mains. I'm recycling the switches and plug, but bought a three gang box for replacement. I'm assuming I have to just tear every wire apart from every other one, but Jesus fuck this is a mess. How... Comment too long. Click here to view the full text.
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