Archived threads in /diy/ - Do It yourself - 61. page
Images are sometimes not shown due to bandwidth/network limitations. Refreshing the page usually helps.
>diy
>catalog
>search: blacksmithing
>nothing found
Blacksmithing thread.
>>973546
Fedora smiting
OPEEE you gotta start it off with something to talk about. Like anvils, favorite hammers/tools, charcoal vs coal. Blacksmiths hate him, 1 neat trick to make your anvils stop fucking ringing so loud you wish you could buy a suppressor for it
Alright so I picked up a 1978 Yamaha 250e for free. When it was kick started, you could hear a faint hiss. I took the engine off the bike and removed the piston, which was cracked. (pic related) I installed the new one. Moar to come\/
There is a difference in the top ring on the piston. The new one has a receded top for the piston to fit into. The old one does not.
Also, the old piston is scored to fuck. The walls of the cylinder have minor scoring(pic related). Does it need honing? Can I use this new piston?
>>998313
Old piston
Anyone know what this is? I found a few of them in an old box of hardware I was sorting out on the weekend. The two holes are threaded and there is a slot on one end.
another angle
>>998269
IKEA fitting thingy
>>998269
>>998273
Have this helpful diagram
I was going to buy a document scanner to start scanning all of the receipts I generate through my business, but instead I was thinking of just using my phone. Some of the documents have been wrinkled, so I was considering using Lexan or something similar to help flatten them for taking pictures. I am worried about a glare, however. Do any of you have recommendations or suggestions?
don't use your in-camera/phone flash, use a light-source at a 45° angle from the surface.
try and minimise light hitting your phone/hand and also whatever is behind you.
also polycarbonate is 3x the price of acrylic and for this purpose you wouldn't notice a difference.
>>998070
Use an iron. Put the paper on a flat surface, as flat as you can get it to stay. Put a towel over it, and iron the towel on low heat. Let it cool, and take the photo.
>>998075
Many receipts are made through xerography, i.e. with heat. Wont ironing them turn them black and thus ruin them?
where to get free wood and scrap metal.
Of quality? Lol. No.
Potentially a scrap yard
>>998012
Building sites at night.
Also, in the back of unlocked vans and tradesmans vehicles.
is it safe to leave this cord hanging?
>>997806
Yes
/thread
>>997806
Sure. Unless your house catches on fire and you were depending on that smoke alarm to let you know. But that cord has a plug on the end, so you're all good there.
Are there ventilation devices that can be regulated via voltage or with a resistor?
How do i determine if it has this feature?
>>997633
>Are there ventilation devices that can be regulated via voltage or with a resistor?
You did not state how big of a device you wanted, or exactly how you wanted to control it. But anyway-
1. Most home-ventilation fans are synchronous motors, and varying the speed of them is rather complicated to do. The speed they turn at is dependent on the AC supply voltage frequency.
2. PC fans have brushless motors (which is good, as they last longer than brushed motors) but they have...
Comment too long. Click here to view the full text.
>>997650
Or you could get a four-wire fan, and control it with a voltage-driven PWM signal.
I see how this might have passed you by, given how it only became a standard in 2006 or so.
>>997650
I thank you most respectfully for your extensive answer, despite of the insufficient information provided in my initial post.
I'd work with a 12v DC Fan with about 10 cm diameter, because i'd like to use the same power supply to power LEDs, so in any case i have to get down from the 220V in the network.
Of course the LEDs have different needs that have to be treated in a separate circuit from the 12V power supply.
I will look further into motor controllers then.
Hi /diy/,
I'm going to buy UNI-T ut139c multimeter.
Unfortunatelly I cannot afford more money.
Currently I'm using cheap Mastech MAS 830.
Is this UNI-T a good choice?
Any recommendations for $40-50?
>>997500
a 10$ one is fine. unless you intend to use it on mains voltage a lot. or you need some specific feature like transistor or capacitor testing. or ESD protection.
as a matter of safety, if you're using it on death voltages like you will find at mains voltage, you need standardized rated probes so it cant arc through cheap chinky plastic.
>>997500
If you already have a multimeter then why do you need a new one? There are better things to waste money on.
If your job/life depends on it then get a proper multimeter. 30$ won't cut the mustard.
Auto-range is a nice feature i would like to have.
Also frequency meter useful when working with PWM.
I'm playing a lot with AVR uC so having second multimeter is convenient
What do?
Already tried using an auger and draino.
Draino is ass
Get this shit
Have you snaked the nigger?
either you snaked it wrong or you didn't go far enough
What kind of tool do I need? An allen key won't fit, it's kind of tapered inward
I'm trying to take the winch off my AtV because it jammed all to hell
>>997080
Torx
>>997080
You'll need a torx bit. also known as a star bit.
So i want to build a cooling using a refridgerators compressor, using a fpga or a micro-controller i will develop a control system that will regulate the temprature based on the feed-back.
>>Help me get started
>>what would i need
>> what prerequisite knowledge and skills do i nee to aquire
>>some sites and books that could help me
>>993889
That one looks pretty good, use that.
>>993889
Computer engineer here, your project is completely pointless.
The whole point of cooling is to keep the chips in a certain temperature range and this can easily be achieved with air or water cooling.
There is no point in going below some temperature, so unless you live in an oven, a compressor is fairly pointless.
However if you insist on it, you're going to need:
>Microcontroller
just use an Arduino
>Temperature Sensor
Either...
Comment too long. Click here to view the full text.
>>993925
op here
people have gone to extents of cooling using liquid nitrogen so a compressor would definitely not be an overkill( I am going to use it duing overclocking).
plus i am repurposing a fridge compressor.
i think i might need knowledge of welding and coupling for the pipes, and some knowledge of thermodynamics and the physical properties of gasses.
My major concerns are what dangers and precautions should i be aware of.
Newfag here. Anyone have homemade recipes to deal with ants without using poison?
>>990510
acetone peroxide
Baby powder
>>990510
Borax and icing sugar.
https://youtu.be/hHD10DjxM1g
Thoughts on this guy?
I was interested in making one of these mini forges but I don't know enough about it to tell if theres a smarter way of doing it
seconded
Pretty sure that thing is only good for aluminum. Which doesn't mean you shouldn't make it, but just don't expect it to be more versatile than turning cans into knick-knacks.
But it does seem like if you want to melt aluminum on a hobby scale, that's a pretty damned good way of doing it.
>>988916
I've built two now, it works pretty well for aluminum, I haven't tried anything else though. I think it's good for the amount of money spent building it.
>Who the fuck is Bob Widlar?
Starter guides and more:
http://pastebin.com/9UgLjyND
Rest in pieces of smashed lame circuitboards, fellow alcoholic :)
>name
>value
every time man, every time
>>987082
"He installed "hassler" devices that emitted high-pitched sounds whenever someone talked too loud, and even blew up an annoyingpublic addressspeaker with firecrackers.[11]Jim Williamsrecalled an incident when, after tracing externalelectromagnetic interferenceto thecontrol towerof theSan Jose airport, Widlar telephoned the airport and demanded they shut down the transmitter"
What a fucking legend.
Best way to keep a small room with a hot gaming PC cool?
I have a pretty small room with a computer I game/stream on and that obviously that expels heat extremely fast. Is there anything I could try building/doing short of using my fans or opening my windows/door which aren't always an option for me?
I am also In the process of building a new rig so any suggestions on what to include on that to minimize heat expelling would also be appreciated.
![Cooler008[1].jpg](https://i.imgur.com/sSItXfW.jpg "Cooler008[1].jpg")
>>997924
tape a length of plastic dryer tubing to the PCs main fan outlet and run it out the window.
If the window needs to stay closed, cut a piece of plywood to wit the window opening, and run the tube through a whole in that.
Buy an air conditioner to fit in your window?
