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File: 1.jpg (2 MB, 3264x2448) Image search: [iqdb] [SauceNao] [Google]
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Hi /diy/, so I got an inline fan and need some help with it. First of all can I control its speed? If yes can I use a light dimmer for it? And how do I power it? Pic related.
7 replies and 3 images submitted. Click here to view.
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>>947542
dimmers don't like inductive loads
use an autotransformer
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>>947542
find a lego and see if it will fit the orange thing please
>>
you can get special dimmers designed for fans. oddly enough, they call them fan speed controllers.

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ITT: General HVAC discussion

I'm in school and I'd like to hear from some professionals about their experiences in the trade and any tips for a new technician.

>pic is my first dabble in relay logic
>I can't wait until I can just use a defrost board
56 replies and 10 images submitted. Click here to view.
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>>944281
>a defrost board
Brother, shit is much easier when you hear contactors clackin'. I don't do HVAC, but if they clackin and power ain't crackin you got issues. I much prefer 'mechanical' designs over logic boards. One bad relay and the whole board is done for.
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>>944286
I see your point as far as the satisfying sound of an electro-mechanical switch closing, but being easier and quicker to troubleshoot is nice. Although when a customer doesn't want to buy the board, I'll know how to bypass it.
>>
>>944281
use proper lifting techniques

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Hey /diy/,

I got this case off Amazon today to be used in a future project, but noticed how it had a split right here. It looks on purpose, as if it was two pieces just sticked together.

Should I send it back, or is it something that won't be an issue?
4 replies and 1 images submitted. Click here to view.
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>>947775
shitty QC
someone cut the rails too short
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>>947775
send it back, its not the product they advertised. ALWAYS send it back if its fucked from the factory, why pay for a half assed job? Would you pay a plumber to only pipe half your house?
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>>947776
>>947780
Thanks anons. Back to Amazon it goes for a replacement. Hopefully with better QC.

Quick question /diy/. Do these fiberglass driveway markers bend/break? And if so, which is it, and how much can one bend them before they break?
10 replies and 1 images submitted. Click here to view.
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Drive over one and find out. Post results.
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>>947430
They definitely bend quite a bit. People make bows out of them.
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>>947430
they are quite flexable. they can splinter and break but it takes a lot an they tend to show when they are close to the breaking point.

Sometimes even use them as cores of foam swords.

File: rocket-candy-2.jpg (43 KB, 654x367) Image search: [iqdb] [SauceNao] [Google]
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Starting a new project with some friends, looking for a new recipe or two for our favorite type of propellant. So far we have used potassium nitrate + sugar to get a nice burn but we need something more efficient. Thanks in advance.
13 replies and 1 images submitted. Click here to view.
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>>947336
>>947338
>>947340


Final note; I have no idea what the source of this information is. its the internet; information is spread and altered. its out there [i just ripped this off a webpage desu] so fuck everyone who's about to cry about me posting it.
>>
>>947346
thanks, deffinatly gonna double check that one as I have seen many a recipie for tear gas and other things of the like throughout this website. But thankyou, that may be the shit we need.
>>
>>947347
Legit; it was a joke. read carefully. it makes PLASTIC explosives. not rocket fuel.

File: 090713006185lg.jpg (15 KB, 276x276) Image search: [iqdb] [SauceNao] [Google]
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We have two of these things in our new house, and we hate them. I've looked up a few solutions, but I'm curious if /diy/ has any interesting ideas to replace Lazy Susans.
24 replies and 3 images submitted. Click here to view.
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>>946941

Yup...a fixed shelf...
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>>946962
This guy is a true innovator!
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>>946962
Well that's always an option, the problem is the depth of the cabinets at floor level. I don't want to have to get on my hands and knees and root around for things in the back.

Friend just bought a house and is renting out his detached garage to me and another person for mega cheap.

We're aware of the temperature issues that most garages come with, so I'm curious if anyone's ever lived in one for a period of time and has some solid ideas as to fixing it up.

It's actually really nice, though we're having an electrician come in to check up on the wiring and amperage etc. We overloaded a wall socket already just trying out a space heater we planned to use sparingly.

It's about 570 sq ft.

Any general tips?
21 replies and 3 images submitted. Click here to view.
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>>944532
Stop saying fucking 'amperage'
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>>944532
how much does your friend want to spend fixing it up?
you could install a whirly bird for the summer heat. other than this I doubt he's going to want to dump a few thousand into insulating it.
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>>944532
https://www.youtube.com/watch?v=_u9QXEWUtuU

add some of these with the whirly bird so you get some air flow in the summer. Vents in the door are going to be much cheaper than trying to add a window.
Winter, yeah, you need insulation and it's going to be pricey. You're going to have probably only one line of 20 amps to the garage, so I wouldn't count on being able to run a fair sized heater along with anything else. Get an indoor certified propane/kerosene heater. the indoor ones shut off if they...
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File: deck1.jpg (24 KB, 390x389) Image search: [iqdb] [SauceNao] [Google]
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I bought a foreclosed home and I had an inspector come out and he said I needed a hand rail on my deck steps. I guess he was being real cool by not mentioning the 10*10 feet of missing floor boards and the entire railing.

Basically the understructure is in decent shape and I would just be laying down the floor and railings. I didn't know if anyone first hand could say is was worth the extra expenses for the composite lumber?? I know its not suppose to rot but like if I walk outside and bust my ass on it when it's wet the I would just use regular wood. I can't...
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16 replies and 2 images submitted. Click here to view.
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>>946122
The real benefit of composite decking is that you can just leave it as it is and nothing about it will change.

Grip is not an issue, no more slippery than wood, if you're really concerned then lay your decking grip side up.

There's composite decking near the waterfront in a nearby city. The council put it there ten years ago and it still looks like new. That's why people pay extra for it.
>>
Dad got a composite deck. It's doing alright after like 10 years. My brother was in charge and we didn't put enough supports under it. It flexes notably more on a hot day than a cool one, but that's our fault for not putting enough support. Amateur hour so we probably didn't even have enough for a wooden deck, I don't think there's a documented support difference between wood and composite. The worst is the stairs, we only have three stringers for like a 4' wide stairs.
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>>946137
Thanks. I'm not the type to go and waterseal my deck so I guess thats an advantage.
>>946141
Yes I did just read that it needs more support underneath because it flexes more. If I had all new joists I can see where the cost does start to add up.

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I recently started working with leather and sometimes i need to set a rivet or two. The thing is, when i put the rivet head on a wooden surface, it tends to deform when the pin strikes it from the inside and that looks nasty. How do i go about making a rivet set or something to put the rivet on while i strike it form the other side?
As far as power tools go, i have a dremel and that's it. No easy access to a lathe.
12 replies and 5 images submitted. Click here to view.
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I have this piece of pig iron from a blast furnace ground flat for tests, but i have no idea how to produce a spherical depression in that. If i cast the needed shape in two-part epoxy, would it have enough strength?
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>>944559
picture related
>>
>i have a dremel and that's it
>i have no idea how to produce a spherical depression in that
If I understand what you're trying to do wouldn't this work?

File: pccring.jpg (274 KB, 720x480) Image search: [iqdb] [SauceNao] [Google]
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lets say i want to dig a soakaway for storm water, not poo water.
soil is clay so doesn't drain well.
dug a hole in the garden to just about 4 meters deep to get through the clay and it drains fine.
popular method seems to be fill the hole with broken bricks and shit but this seriously reduces void area and draining capacity.
i have seen milk crate type attenuation cells but wrapping in sheet and burying sounds like a bad idea, how long until it gets blocked?
my personal preference is something like pic related.
issue is cost, to get rings with holes drilled,...
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8 replies and 3 images submitted. Click here to view.
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Instead of using concrete you could use corrugated plastic pipe. Its lighter and cheaper. And I always seen people fill the drywell with course stone with landscape fabric ontop.
>>
File: cache_638829004.jpg (133 KB, 800x600) Image search: [iqdb] [SauceNao] [Google]
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What you want is field tile.
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>>947342
i looked at twinwall from a few sources but for the rainfall/area/hole it needs to be over a meter diameter and made to order and very expensive. same with the stone infill, i know its common but it pushes the volume way up

>>947574
not really because i would have to dig the whole place to 3-4 meters to lay it under the clay and dig it all up again when it filled with silt.

Hello /diy/no's

Can we start a storage general? I'd love to see the way you guys store your tools, materials, objects etc.

Post anything - shelfs, boxes, drawers - everything you got!
7 replies and 4 images submitted. Click here to view.
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>>946478
Toolboxes and shelves. I have about a half dozen old Kennedy cantilever toolboxes, a couple of machinist chests, several traditional toolboxes of various sizes and two roll arounds: a Kennedy and a Craftsman. Just about all of it is 40 years old or older. I have a wooden machinist chest that is WWI vintage.

The tool boxes are placed on standard shelves in my garage for easy access. If it doesn't fix in a box its either mounted on a tool or on a shelf/in a cabinet. Looks like a fucking antique tools store up in here.
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>>946485

Ha, nice mate, sounds interesting!

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I just bought a record player, hasn't been even half a year but I'm already having issues with it. It will no longer spin but the other function still works ( MP3 player) Does it have something to do with pic related? It right under the spindle.
4 replies and 1 images submitted. Click here to view.
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That's God's way of telling you to stop being a hipster.
>>
Why would you buy a record player / mp3 combo shitbox for twice or more the price of a solid old turntable from a thrift store?

Open it up and look for any wires that look like they've become detached.
>>
>>947606
>hasn't been even half a year

Warranty. Also stop buying cheap chink shit. If you want to play records, buy a fucking record player.

/thread.

File: victor1.jpg (20 KB, 440x334) Image search: [iqdb] [SauceNao] [Google]
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Hello /diy/

This might be more of a request than a thread for advice.

I got a Victor 1140B lathe machine for free (previous owner was going to disassemble it and sell it for scrap).

All the electromechanical aspects are in good condition, the only thing that it is lacking is the tool holder and the wiring for the auto settings.

Do any of you by any chance have any manuals or electric diagrams regardng this machine?

also lathe/milling general I guess.
9 replies and 1 images submitted. Click here to view.
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>>945999
1440B*

My bad.
>>
>>945999
Phase II makes toolholder setups in a few different sizes, in piston or wedge... the wedge types are generally a bit more solid than the pistons.
I can't help much with the wiring issue.

you might check the bed/ways first before spending money or much time on it tho. it may just be scrap....
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>>945999
I got nothing to contribute, but nice trips.

File: Paving.jpg (360 KB, 1000x750) Image search: [iqdb] [SauceNao] [Google]
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I have a narrow asphalt driveway going to my house (a car and a half wide)
I have three cars therefore I want a wider driveway
Next to the driveway there's a hill that I can dig myself (with help)
Is there anything else I can do to avoid being charged for anything else (beside actual paving) by the paving guys?
I'll just take out the dirt to the level of the actual driveway + a few inches then use a compactor to get it to the same level
Do I have to put any gravel or stone base?
Will they try to convince me that they have to cover both the dirt and...
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21 replies and 5 images submitted. Click here to view.
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>>945252

Just park them with sense. I can fit 3 trucks on the image and get anyone out without moving the other
>>
>>945252
If you want it done properly you need to remove more dirt and put in a few layers to make a decent sub base. Google 'paving expert McCormack' for everything you didn't want to know about ground works.
No need to lift what's there.
I'd be more worried about laziness with the sub base leading to failure rather than them doing extra work
>>
>tfw you're an american
>tfw if you build your driveway to code it will outlast your house by 6 decades

What is the point of building your driveway to handle 60 years of semi truck traffic when your house is a paper machet and tooth pick construction rivaled in build quality by your daughters science fair project?

File: UGA07273 Turkish dull.jpg (219 KB, 1789x350) Image search: [iqdb] [SauceNao] [Google]
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How do calculated the pressure rating of a bolt?

Specifically, I am tapping some stainless steel pipe to make a rifle barrel. Project is a homemade matchlock just to say I did, and fire once a year to feel proud of myself. I want to plug one end with a bolt (5/8), and was wondering what length of bolt would be required to achieve a 15,000-20,000 psi rating.
38 replies and 5 images submitted. Click here to view.
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What caliber and what is the wall thickness? 1/2 to 5/8 should be plenty for black powder. cant speak or testify other than I assembled a BP rifle that I screwed in the breach plug loaded 150 grains of BP, 2 RLB, set a 30 second cannon fuse and ran for hell. Everything held together and have taken 3 deer and shot over 150 times with 50 grain load.
>>
Nose through this collection for a couple of days http://s1131.photobucket.com/user/runastav/library/?sort=3&page=1
>>
File: burst.jpg (78 KB, 800x600) Image search: [iqdb] [SauceNao] [Google]
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> I am tapping some stainless steel pipe to make a rifle barrel.

Are you terminally stupid, or simply suicidal?

How utterly fucking STUPID do you have to be to use a bit of "stainless pipe"?

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