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So I have a very old very heavy and very tall (cast iron?) water tank. I have to assume they only got it down there before the floor above was built there is no way you could get this thing out of its room in one piece.

Things I would have to buy are a torch or perhaps a very heavy duty saws all blade..

another issue is there is at least some amount of water still in it and the facet at the base of it is unfix able. I'm not super worried about this as i can just make a hole to drain it.

I guess my main question whats the safest / quickest way to cut this fucker up the metals probably a inch thick but I am not 100% sure. I tried a sawz all on a vent made from what looked like the same material and achieved nothing.
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That's steel. Cast iron isn't riveted together. Oxy acetylene torch and you can have that thing cut into pieces in a matter of an hour.
>>
You could probably manage to cut it in half within a couple of hours with an angle grinder and a cutoff wheel, but if it needs to be split 3-4 times to get it out your best bet is an oxy acteylene torch otherwise you're gonna be sitting there a hell of a long time .
>>
thanks everyone!

also best comment in the thread

Cast iron is very brittle
Hit it with a big fucking hammer.
>>
>>1411205
Grind off the rivet heads, use a punch to drive the rivets out of the holes. Once you get all the rivets out of a piece, see if you can pry it loose. Drive a flatbar under an edge, start working all around the edge, etc.
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>>1411168
Is it literally bigger than the door ways? There are special carts for moving stuff like that, and any local plumber that does commercial stuff will have a cart like that. Call them up and offer them money and beer to get it out of your basement. It'd be cheaper than buying a torch. I work for a plumbing/hvac supplier and I move almost thousand pound, 400+ gallon waterheaters all the time, up and down stairs, etc.

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I got an old tank of what i was told is r-12 pic related. It got me thinking it would be cool to be able to refill empty mapp gas cans with old refrigerant that i might want to keep , since if i want to do some side work 1lb would be a nice amount to carry. Has any one tride to make an adapter to fill one of these.
>>
I'm thinking of buying one of these and brazing a 1/4" fitting to it so i can hook my gauges to it then i can have a few caps to keep them from leaking
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>>1411269
forgot pic
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>>1411267
Why keep r12 around when propane does the same thing more efficiently without the negative environmental effects? Lets be honest, a coolant loop isn't going to explode unless you mixed in an oxidizer when charging.
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The arrows point to what appear to be Schrader cores (tire valve) but are actually pressure relief valves.
The center pins can't be pushed down. A spring is already holding them down.
Lifting the pin opens the valve. Too much pressure also opens the valve as a pressure release.
I lost about a pound of HotShot refrigerant because at similar temps the refrigerant had enough higher pressure to open the relief when the propane would not.
HotShot is still cheap compared to R12 so no big loss but at the current price for genuine R12 I wouldn't want to lose a pound of it.
>>
>>1411299
Might have some legacy equipment that has oil that doesn’t play well with propane or other refrigerants, or is sensitive enough that it’d be a bitch to get it exactly where it needs to be with new refrigerant, or most commonly the cost of topping it off with 12 is less than replacing all the existing refrigerant with a drop in. But to be fair I usually use 409 in fridge rebuilds instead of 12

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what is the best method to paint it and with what kind of paint ?
should you sand it before painting or just over it without doing anything.
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>>1410257
Why would you want to paint an old keyboard??

For customization purposes?
Are you trying to restore it because it's some Strange collectible?
>>
>>1410494
bought an old keyboard i want to use , but it turned yellow-ish , original white.

customization if it is possible.
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>>1410274
yes , i intend to use it . i am using it now.
just wanted to know if i could paint the surface to a darker color. (some special paint for plastic surfaces)
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>>1410807
>bought an old keyboard i want to use , but it turned yellow-is

google retrobrite
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>>1411067
This^

I bought an old apple IIe and retrobrited it. Used that salon peroxide gel, wrapped it in seran wrap and left it out in the sun. Looks brand fucking new and sold it for thrice the price I paid.

How do i get started making pottery? I know i need a wheel and a kiln. Where to buy clay and glazes? How much money can i make from this do you think? What would you sculpt?
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>>1410861
Those are cool looking. What about making utalitarian stuff such as pipes, planter pots, incense holders, birdhouses... would i have better luck selling those than just decorative pots?
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>>1410865

If you are talking about a hobby that won't even pay for itself, it's a lot of fun. But if you are talking about making real money, forget it.

Try it, but be prepared for it to turn into drudgery at best, and money-losing at worst. It's a whole lot better to do it as a hobby because you love it than to think it will be a source of income.
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>>1410857
>What would you sculpt?

I think you know already.
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>>1410857
Nobody gives a shit about hand made things any more, unfortunately. Everyone wants shiny plastic bullshit.

I grew up as a kid in a pottery studio and selling at fairs and small markets. In the 80s/90s you could make a living doing it but not now.
>>
>>1410857

You don't need a wheel. There are other ways of making ceramics. Pinch-pots, coil-building and slab-building are the three main methods that don't involve the wheel. Native American pottery like pic related is an example of what you can do with coil-building once you get good. You don't need glazes either, you can do just fine with slips, or paint, or even just surface treatments like incising the surface of the pot when it's leather-hard.

Clay, tools and all the other materials can be acquired at any art supply store, or online.

The biggest challenge is firing. Building a good kiln is expensive. Building a low-tech kiln is probably illegal where you live unless you are way out in the country. If you are in a big city, there might be a ceramic arts studio somewhere that will fire your stuff for you for a price.

You won't make any money until you get good, and you won't get good until you've been at it for several years at least. Making actual pots is harder than it looks. Even making an ashtray that doesn't resemble a lumpy 3rd grade art project is harder than it looks.

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Cheap but decent 3D printer for a newb?

Been stock piling ideas for a little over a year, time to get a 3D printer but i'm not sure where to start. Any ideas?
>>
>but i'm not sure where to start
You can start by asking in the 3d printing general instead of making a brand new thread, where you'll get much more info and more replies.
>>
>>1411329
>makerbot
not makerbot

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In this thread we talk about:
- ham radio
- projects you have going on related to radio
- baluns and ununs on salvaged cores
- compact all-band antennas that fit into matchbox
- SDR
- discussing how should a new general trhead look like.
FAQ: In this thread we talk about:
- ham radio
- projects you have going on related to radio
- baluns and ununs on salvaged cores
- compact antennas for 160m band.
- SDR
- discussing how should a new general thread look like.


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http://hsmm-mesh.org/just-starting-read-this.html
How would you set this up to stick it the FCC faggots
I mean seriously why is this a fucking LAW "Per FCC rules the encryption keys themselves must be published in a publicly accessible place if using WEP, WPA/WPA2 or any other encryption" -source https://en.m.wikipedia.org/wiki/High-speed_multimedia_radio
>>
>>1394031
That's his fat dick and massive balls bro
>>
>>1394027
Most hams I know have great set ups that look like Fine Business Operators. The guy I know with an IC-7851 (a fucking $14,000 USD radio with only 200 Watts) has an operation that makes professional radio stations look like shit.

The guy in the pic is clearly an ADS-B/aviation autist. Probably does MilComm DX also.

There's a reason this thread is popular (as popular as can be) in DIY. Slef reliant people love radio communications.

So, vid related: https://www.youtube.com/watch?v=pQnYmC4-_1c
>>
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>>1411075
>GMRS repeaters
Infrequent, but they are out there.
I suspect most of them are "personal" or "friend"-use, and only turned on as-needed vs. putting it on a good site, good antenna, and running it 24/7.

The most common channel/tone is "20/22", sort of like "channel 9" on CB for travellers-assistance.

Repeater itself never has to ID like commercial/amateur sites do.
>>
>>1394286
I've got a friend who recently got licensed. Kind of prodded him to go take the test.

He was always mic-shy... when we're out camping and I know of a net coming up, i'll grab him, fire up my radio, check in, then hand my radio to him and have him check in too. "Just say your call sign, name, where we are, and 'no traffic'. Just like I did. That's it."

Clubs/orgs are a good way to get into it too. There's a lot of 'tism in the hobby, you'll meet the sterotypical fat fucks on mobility scooters with three memefengs, but there's a lot of professionals that enjoy the hobby too.

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>need to build a random thing in my house that requires weird cuts I can't easily do with my dremel
>want to rent a table saw, 1 day for $50 + $100 deposit
>or buy one for $130

the worst part is that I already have five miter saws and three band saws but none of the can make the cuts I need
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>>1411032
>3 bandsaws
>can't rip 2x4s and 6x6es
I don't understand. That's literally what bandsaws do.
>>
>>1411026
You have five miter saws and three bandsaws, but you don't have a backsaw, or a set of chisels and a mallet?
>>
Surely you can find a shop willing to let you use their table saw
>>
>>1411068
>Surely you can find a shop willing to let you use their table saw

what sort of shop lets autistic spergloards use their tools
>>
>>1411026
Buy a 4 tpi blade for your bandsaw. Idiot.

Editors choice
Pic related.

Thoughts?
Will probably go buy as I need a saw.

https://www.popularmechanics.com/home/tools/reviews/g144/11-circular-saw-comparison-test/
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>>1409572
I'll let you all in on a secret in print advertising. They are all 100% bullshit. "Editors Choice" is just another advertisement they sell. Hell, half the "articles" are infotainment. I used to work in marketing did a ton of golf stuff. Golfers are nuts for their equipment. Google your favorite magazine or website and add "rate card" to the end of your query and you'll find exactly how much they charge for "Editors Choice" or "Gear Guide" bullshit.
>>
>>1403652
saw body doesnt matter. get a cheap saw. or one that you think accessorises well with your dildos. now what matters is the saw blade. the body just spins the blade. there is nothing fancy about spinning a blade. I use a 90$ diablo blade on a $60 saw. cuts through it like butter. we dont really have a big range of saw blades in australia so i cant advise you much on the blades. just look for one with the vibration damping slot and you're golden.
>>
>>1403652
DeFault is always good for starting but if you want to be like vid related you may as well copy him.
https://www.youtube.com/watch?v=5hzLckjnDwI
>>
>>1404766
C/sec is not the same as C you absolute dunce
>>
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>>1409479
When youre cutting 10' sheets of 3/4" mdf alone you will be begging for a track saw. Most guys are lucky enough to not have to do such things tho. Im not. Pic related. 10' veneered bookcases built on site, solo. Not quite done.

ITT: Macguyver moments

>be building a shed
>obviously need hammer
>couldn’t be assed to buy one so I used a random rock I found in my backyard

I have been using this same rock for 3 years since
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I had an old ford truck that the starter solenoid went bad on, so I just used a screwdriver to short the terminals every time I started it. I did this for 3 years before I replaced it.
>>
>>1411042
Used a chopstick to fix the heater on a beat to shit 94 ford explorer sport. Found the valve that wasn't opening up by the firewall and just wedged it in there.
>>
>>1411063
Bump for more like this
>>
>>1411063
granpa /diy/ tell me stories of better days.

>working on metal bed frame
>don't have the correct proprietary pozidrive bit because only one came with the entire bed.
>find dremel
>notch the bolts
>use a flathead screwdriver instead
>>
used alligator clips and phono jack audio cable to wire a 10base2 network.
used tongue depressors as shims.
made a towel rod wall mount by grinding a piece of steel until did the job and fit right.
plastic juice bottle with hole thru lid to make a funnel

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What's the best site to learn coding for a complete noob? Free sites preferred
>>
scratch.mit.edu

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I'm putting together a team...
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>>1411125
to build a robot
>>
What is the name of this team, anon?
>>
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obv. a team of talented and ingenious people
>>
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what kind of dremel bit teeth do you need to do this?

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Does anyone here know of any Brute Force hacking programs that isn't compromised with malware or incredulous backdoors? I'm trying to determine a password via program that at the very least performs an exhausted key search.

I was wondering if there were any plans for a papercraft Light Light Duplex that functioned like a working model or if there were exploded models of the duplet that I could use to make my own replicas
>>
>>1409891
There is literally a whole board (older than /diy/ to boot iirc) dedicated to this stuff you numbnut
>>>/po/
>>
>>1409928
I know that but I was wondering if anyone knew of exploded models or any models that had been done already and DIY seemed like a better place. I would only be using the papercraft as a guide to make a fullsize model out of other materials though I could skip that step if I had other resources.
>>
>>1409891
If you cant find a model you can make your own.
Find a 3d model and transfer it into pepakura.

Alright boyos this is my first time on /diy/ so be gentle friendlys
I was bored at work and I thought about scuba diving
All a scuba system really is is a compressed tank and a apparatus to breathe in and expel carbon dioxide after breathing out
So here’s my thought
>take garden/big sprayer tank like pic related
>take a full face snorkel mask
>using some Slavic engineering attach piping to mask
>pressurize tank with hand pump on it
>have roughly 3-7 breaths of air
That’s it for the breathing in part atleast
>have PVC pipe sticking out of snorkel mask
>have a system using a screw washer and spring on the end
>when you breath out it uses the pressure in the tube to push the washer to expel the carbon dioxide
>as soon as you stop breathing out the spring pulls the washer back on top of the pvc pipe


Comment too long. Click here to view the full text.
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>>1411287
I knew there was no pressure regulation. That's why I said it might work at snorkel depth. Have you considered flow regulation?
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>>1411290
Lets look at this another way. How much psi are you putting into the tank? 15? 30?

An adult human's lung capacity is about a gallon and a half. Your pressure vessel is 2 gallons big. At 1 atmo that's one breath you can't use because there is no pressure to get it out of the tank. At 15 psi that's one breath and 30 psi will get you ~3 breaths.

So those three extra breaths without regulation at 30 psi will blow the goggles off your face or blow out your lungs.

There's a reason why suba gear uses tanks pressurized in the thousands of psi.
>>
>>1411276
go to sleep Caz
>>
>>1411295
Well you’d only let in a little air at a time at your leisure
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>>1411307
So what you're saying is, and let me get this straight, you'd have some device in line between the high pressure tank and the low pressure breathing apparatus that would somehow regulate the pressure? Interesting.

Are trade school a scam?
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>>1410360
Make sure to ask around about state funding. The program that paid half of my tuition actually paid full tuition plus gas and food money for a bunch if guys in my class. Some were eligble because of income level, others because of the fact that their jobs had been shipped overseas
>>
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>>1410439
There's not a lot of money in repairing window units because they're so cheap. You would need an EPA cert to be able to buy refrigerant also, which is likely most of the repairs you would be doing. Most window units don't even have ports to throw gauges on, so you have to buy special taps to get your gauges on. Even then, the units are "critically charged" meaning that just an ounce or two is enough too throw everything off. If you have enough knowledge and the proper tools to work on window units, then you def have enough to work on normal residential split systems. It's honestly pretty easy, what you can't figure out on your own you can figure out online. If you're going to go that route, don't be the local sheister.... If you're in over your head, say so and walk away from the job. You and the homeowner will both be better off in the long run. I don't know if I'd even suggest DIY hvac, there is a lot to learn and a lot if mistakes that need to be made, better that you're learning and fucking up as part of a company were experience and answers are just a phone call away.

EPA certs are really not that hard to get. Will cost you some money to have somebody proctor the test for you. There is 4 parts to the test , the Core Test, High pressure systems, medium pressure, and low pressure. (Referred to as parts 1, 2, and 3). You will need to pass core and also part 1 to be able to buy refrigerant.
IMHO, you're wasting your time if you're going to work on window units.
>>
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>>1411272
Fuck man... I could be wrong. You will have to look it up, it's been a bit so I'm afraid I might be misremembering. You might need a universal EPA cert, which means passing all of the tests, to be able to buy refrigerant. I believe it's just Core and part 1 though. Just Google it and you will find out easy enough. The test is simple. I passed it the first time only missing 2 questions. Hell, I still have the flash cards I made to study with, send me a few bucks for shipping and your address and their yours. There's like 400 of them... Seems like a lot but it's easy shit. Good luck in your endeavors, anon.
>>
>>1409360
Here is how I will put it are you book smart enough and willing to put in the work to be a doctor. Yes then go to college and become a doctor.

Are you not smart book smart enough to become a doctor okay that is fine do you have an idea of what you want to do? Yes if you are in highschool and tech classes are offered take the one that is inline with what you want to do if you still want to do that go do it after highschool. If highschool does not offer it then find out if there is an apprenticeship program. If not then go to trade school.

You don't know what you want to do alright whatever you do stay the fuck away from college. Forgoing college will actually put you a head of the people who fall for the scam and inbed themselves in debt they will be paying for 10 years.
>>
>>1409397
Id like to say I disagree with you. I think it depends on what range of work you are willing and capable of doing. Such as if you feel tied to one city. I may just be speaking anecdotally but my father is a journeyman electrician and is union, so to say he would get more work than usual. He has found jobs that last several years and he was lucky to be on them. But there were also several times where the union did not have enough work. inb4 he is only licensed in one state. I think you have to be a master electrician in order to start your own company, which is something he has expressed wanting to do before.
ttf the trades are flooded with illegal mexicans.



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