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Death to the Tourists EditionPrevious Thread >>1777491>New to /ham/? Read this shit!>n00b questions: answeredhttp://www.arrl.org/what-is-ham-radio>Idiot's Guide to Coax Cablehttps://www.pcs-electronics.com/guide_coax.php>Looking for frequencies to monitor near you?http://www.radioreference.com>A Guide to Test Equipmenthttp://home.alphalink.com.au/~parkerp/gateway/noaug00.htmComment too long. Click here to view the full text.
>>1794977I have two close up pics
>>1794980
>>1794977I just thought about it and I think this radio was used by law enforcement, I think this might be a type of sub audible squelch system that isn't standard, for swat team repeaters they probably don't use CTCSS or DCS, they probably have their own system that the average pleb can't fuck with, which would be this board.It can't be a scrambler because it's only on the output and has no effect on the input.
Is there an antenna design for dual band ham uhf/vhf using 19 to 22 ga. Phone wire by any chance ?Or coaxial,could run an aerial 50 ft or so....
>>1794981lift the label and look up the chip
lathe restoration editionThread hymn.https://www.youtube.com/watch?v=PGNiXGX2nLU [Embed]Last thread: >>1780829>Haas automation videos.https://www.youtube.com/user/haasautomation/playlists>Titans of CNChttps://www.youtube.com/user/titanamericanbuilt/playlists
>>1788582In my limited personal experience cutting wood with a standard cnc mill, you gotta run the spindle pretty fast, but not fast enough to burn. If you take a chip that's too big you'll get tearout, but that's pretty much the only limiting factor. Just take a scrap and dial in the properties with your machine and tooling, starting with something that'd work for plastic and reducing the feed by 25% and bumping of the speed by 25%
>>1794885I can relate.>get hired on for a microbiology position to help this new botanical garden produce more.>can build soil ecology, test soil and water, even grow mushrooms, plants on tissue cultures, build compost and craft oc fertilizers from pretty much anything we have access too.>all I need is a little bit of space to set up a basic lab and even have most of the equipment ready to go from the last time I did something similar >boomer boss keeps giving me the run around about when he'll give me access to the space>instead of any of the stuff im hired for have just been used as a glorified labororJokes on him though since I pretty much get paid some mad money for moving some plants around and getting smoked out by my army coworker every day can't really complain besides missing lab work. I'm planing to make a nice fat stack and get the hell out of there once the opportunity presents itself.
>>1788333im looking for a long snout die grinder that has a ~.75" or ~1" diameter of the snout. reason being i want to be able to grind work on the lathe and the best way and easiest to attach it to the tool post is this unused boring bar tool holder i have (also making it cheap). the natural diameter is a cunt hair under 1" and it has a squeeze collet whatever to use a smaller size tool that is about .75" id. preferably the extension would be slightly undersized so it would fit right in, but it can be right on or a few thou over and i can just turn the diameter down if needed (but not way oversized of course, like 2 inches or something).
is this really compression mill?looks like downcut to mehttps://www.aliexpress.com/item/32897605899.html
>>1794588yes, nema 23nema is not a motor brand it's a category name, nema 23 is bigger so you will have to do custom fittingyouc an also get longer nema 17 whith about double torque that will fit there with no adjustments, except for stepper driver tunning, your thing probably uses those shitty a4988 drivers but they should probably handle it with some coolingthe question is if stepper upgrade is even worth it with low machine rigidity like that
>I'm new to electronics. Where to get started?It is an art/science of applying principles to requirements.Find problem, learn principles, design and verify solution, build, test, post results, repeat.>Project ideas:http://adafruit.comhttp://instructables.com/tag/type-id/category-technology/http://makezine.com/category/electronics/Don't ask, roll:https://github.com/Rocheez/4chan-electronics-challenges/blob/master/list-of-challenges.png.png>Principles (by increasing skill level):Mims III, Getting Started in ElectronicsGeier, How to Diagnose & Fix Everything ElectronicKybett & Boysen, All New Electronics Self-Teaching GuideComment too long. Click here to view the full text.
>>1794937I've used braids and desoldering guns (the ones with a motor) in the past and I prefer braids. I guess I could get both but if I do just fine with braids, is there really any point? I learned how to desolder before I learned how to solder and I like the simplicity of braids. It was also a good deal compared to 1/10 the length for 1/4 the price.
>>179495150' will outlast the typical hobbyist. I'd suggest you get different widths of that stuff. I bought all 3mm last time I ordered braid, wish I'd have gotten some 2mm or even smaller for some of the SMT shit I doI find the manual sucker a lot less hassle for getting through-holes and the component leads free and smooth, so that I need fewer hands when I grab pliers and pull the switch out of the metal frame from the top side, and so when I go to reinsert the new switch into the frame and board I don't have to heat the holes to get solder out of the way
>>1794825T12 certainly isn't bad, it's what I've got and it works a treat. Its advantages over the 936D clones is that its tip and thermocouple are one in the same, your temp reading is going to be more accurate so you'll get less thermal lag, and its digital readout with user-settable standby and sleep times and temperatures (and boost temperature) make it very convenient to use. The tips are also hot-swappable if you have a silicone mat to grab the hot tip with. But these T12 tips are significantly more expensive in case you want more than 2 or 3, and the whole thing is more expensive overall. If you do go for the T12, don't get the wide gray plastic handle, get the particularly thin handle (my one's blue with a black grip) instead, they have a much better method of fixing the tip in place.Either way you'll want a stand for your station, and the T12 probably doesn't come with one. Copper wool is also very useful, far better than a wet sponge in my opinion. Desoldering braid and/or a solder sucker help.>>1794903>Here we are hunkering down for the worst chink plague in a hundred years, and I'm buying cheap chink shit to keep myself busy.Not like anyone else is selling shit, chinkshit is all I can buy!>>1794951>>1794959Any of you tried hollow desoldering needles? They look great for THTs.
>>1794268you need to add some mounting holes
Can I use a smallish mains stepdown transformer as-is as a demagnetiser? Or is 50Hz too fast or slow? Do I need to make it open-core?
Do you sticker your home box? What about your work box? I can't tell if this is cringy or not. Pic related
>>1793289>>1793294You guys know he became a tranner, right?
stickers on the tool box was a big thing in the 80's and started back in the 60's. snap-on would come in and hand out stickers ." don't ask to borrow"
>>1794834>I have boxes from my dad,Lower end boxes were built better even 10 years ago. Also Im guessing that you and your father didnt open certain drawers all day for 8 hours a day, 5 days a week for years in a row.
>>1792321What about when you go to work on several job sites and they give you the safety orientation stickers and want you to put them on your hard hat? To me, that's not a weaknesses of intelligence.
>>1792297100% this
how do i remove the old varnish from my fingerbox, and paint it? i bought it second hand since it's cheaper.
>https://knowyourmeme.com/memes/finger-boxes>literally second post is autist meme posterCan mods please start banning these faggots and removing these threads from /diy/? It would really benefit the community, and this isn't /b/, so I'm not sure why this level of autism is allowed here.
>>1793232It's not his, it's a famous quote, lol
>>1789903If you finger it hard and fast enough, the varnish will naturally wear down.
its a coxbox...
>>1789903I never took the label off mine
Has anyone made the switch to rechargeable batteries? Any brands to recommend? The reviews of the amazon basics read pretty unreliable
>>1794965I bought the EBL brand and they have held up pretty well over the year I've had em.
>>1794965Look for eneloops.Ideally any rechargable battery made in Japan.Amazonbasics batteries used to be eneloops, then random Japanese batteries and in 2018 they became full Chinese batteries throwing reliability and durability out the window.
Can someone identify this rock for me?
It's silicon slag from a purifying foundry. Used as blanks for chipset processors.
>>1790617>>1791064>>1791086>>1792434
>>1789911it's a darude sandstone
>>1793327Ding ding
>>1789911>>1789918>>1789921>>1789925>>1789934>>1789952>>1789958>>1789963>>1790050>>1790112>>1790273Meteorhttps://youtu.be/tN0ucCc8TfA
I found this gnarly ass bug walking on my ceiling, we had a bed bug scare and I threw a couch away in my room that had shells in it from melting that matched this bug.Tldr: please help identify this bug
OP what did you do with it, I dare you to fuck it
>>1794060That is like a scorpion without tail! Burn the house down!
>>1794059pseudo-scorpion they are harmless
>>1794059THATS NOT EVEN A BED BUG. THOSE GUYS ARE BASED AS FUCK. I SEE THEM MAYBE EVERY OTHER YEAR
Thats a book scorpion, he is based.
What's your biggest pet peeve for home design? I don't mean in terms of shoddy work, but deliberate choices, no matter how well or poorly executed.For me:>Tile floors in bedrooms/living roomThese should be carpet or wood. Nothing else.
>>1794916What the fuck is wrong with baseboards you homo
>>1793198You want tile on slab in places like AZ.
>>1794916>12' ceiling based. my parents have this really narrow kitchen, but the 14' ceiling makes it feel spacious
>>1793681High roof pitch looks cool
Grey everything, they're even turning the taps grey.Open plan en suite.Those slab cut bathroom sinks.Huge house tiny yard.Giant pillars blocking the front door.High gloss kitchens.Bath tubs.Carpet.Brown brick, it looked shit in the 70s it looks shit now.
Is there a way to resize a tube without a reamer for high pressure stuff? I need to use a piston for something (I won't go into details) and I don't have the money for the reamer so I dunno if I could use something else? I have 10mm (inner diameter) and 9mm tubes, is there a way to get one to around 9.7mm? I was thinking about electroplating it but I dont know how that would work, are there any other ways I can make the tubes smaller/ bigger?
>>1794707If you can't even afford a reamer, you obviously can't afford any of the other tools you might use to do this. You can't do it with a hacksaw.
>>1794707we cant accurately assist your nigger rigging without knowing the application of your system
If you got a gas stove or propane torch. Heat it up.and dip.it in water. Keep repeating it will.open it up a tiny bit every time. It might fuck the temper up but I've done this to.impact sockets and they worked fine.
>>1794707Just look up how barrels were made back in the day mate, we've been making guns for hundreds of years. Btw it'll be way more expensive than a $30 reamer
Bottling the essence editionold>>1745534how long after bottling do you serve or drink it?
>>1794680Let it keep going and use it as vinegar. You can't un-vinegar something.
At what point do you typically transfer your wines into a secondary and add stabilizers? IG was 1.095 and I'm at about 1.06 right now.
>>1794639There is bacteria that turns alcohol into acetic acid. You probably did not work sterile enough. You do not need the most proper of airlocks (I use saffran wrap sometimes and it works), but you have to keep things clean (due to lockdown I don't have cleaning stuff, so I just use hot water and let it cool down slowly to fermentation temp before I inoculate).>>1794680Don't put it in the drain. It's good apple vinegar. Some people pay for this. Use it for Salad, or concentrate it by freeze distillation / normal distillation and use it to pickle stuff.
>>1794722>concentrate it by freeze distillationgot a quick bog for dummies?
>>1794695Mine usually ferment to dry (around 1.000) anyways.
Is pic related a useful purchase for the diy home mechanic or is it just an expensive meme
Completely ripped the suspension off my car with the harbor freight one, useful when I don't feel like turning on a compressor.
They ain't all that. They're best for removing rusty old fucked shit. Totally useless for assembly.
>>1794968Unless something has changed in the last year or so, the corded ones are all fairly weak for some reason. Good for lug nuts, but can't break anything loose you couldn't easily do yourself with a breaker bar. The battery ones are fucking strong as hell and can absolutely get stuff you couldn't realistically get with a breaker bar, with the advantage of fitting in smaller spaces than a breaker bar (extensions etc rob you of power from the flexing so you should always try and avoid them as much as you can). I have an air one and it is also strong. But if I didn't already have a large compressor I would probably go battery nowadays.
>Is pic related a useful purchase for the diy home mechanicIn a word, FUCKYES. But get a battery powered one. The corded ones have no balls.
I have a cordless one. I like it a lot, especially more than the pneumatic counterpart, but it's overkill for how much I use it.
This should be illegal.https://www.youtube.com/watch?v=BaTLu-9GO20
>>1794882self leveling compound. its common sense when putting anything over concrete. you need to use self leveling compound which is basically a concrete type mix. it will find its own level and when it does the floor is good to go
>>1794837Can you specifically point out to me what you think is wrong with what he's doing?>>1794909Yes and that's going to add $$$$ to the customers cost. I would personally try to level every basement slab, but some people just don't give a fuck about uneven floors and the extra cost for them is make or break. Some slabs are done well enough from the get go that you don't really need to level.Back to the OP, the guy does it better than 90% of contractors, most just put vinyl directly on the slab, or they use the dri core garbage.
>>1794860they should epoxy it
>>1794837>>1794838Floors "uneven" because of the lens on the video camera you fucking retard.
>>1794987he thinks lens distortion is the floor being uneven?Holy kek.
Originally posted on >>>/g/75286226 but that board sucks, so I xpost to /diy/. Open source hardware is a thing and /amg/ has more competent programmers than /dpt/.----------Gotta stay at home, so I finally have some time to work towards becoming a open source contributor.Post> your repos and who you need if you need some help with your project> your skills and interests if you look for projects to contribute to.Ideas of stuff you want to have developed are also welcome as long as post realistic stuff.
>>1793875farm it out to some cheap labor on upwork or similar.
>>1793560source for hardware typically refers to drawings e.g. schematics, layouts, etc. source doesn't mean "source code" in this context.
>>1793898>upworkjust user fivver lmao
>>1791289no, you have to look that up yourself
>>1793903Ah I see now
