/diy/ - Do It Yourself

>>345612
Very easily but if you can't make a square with opposing sides, holding it and keeping it flat becomes an issue.

>>345903
A mill. Alternatively a vice and file.

>>345524

Sorry, my mistake. That's not what I'm talking about, meant to say arc BURN.

It's when you watch as an arc is struck without any kind of eye wear. Think a flashbang grenade without the bang.

>>345524

Forgot to mention. The reason you'll want to call in sick is the headache from hell you'll get when you wake up the next morning. First time I had it I was out for 2 days.
Oh, and if they cram you in a booth with no fume hood, tell them to fuck off and report then report them to OSHA

>>345460
Vice, files, hacksaw and a drill press.

>>345497
90% of welders are dumb as a pile of rocks, especially those under 30, learn who you can trust to not be fuck wits.
Get an auto-darkening helmet, it will save you lots of grief.
You will get arc flash. It sucks. Plan to take the next day off at least if you get it, keep potatoes around the house. Cut one in half and place over your eyes, it will help with the dryness/sandiness.
Wire wheel the fuck out of your welds. Did that? Good. Now do it twice more.
Get gloves that fit, you should be able to have at least 60% of your normal dexterity, 80% is best, any more and they're too thin for things like arc welding.
>>345502
>>345499
These guys have sound advice.
>>345500
This guy is one of those fuck wits.

>>332326
Fused wires.

>>330157
>with perfect precision up to 800 yards max
If you were shooting anything less than minute of man at that range you had much more than just "hunting rifles".

You cannot tell me you don't know one person who would be willing to let you borrow a power drill for half a day.

>>327385
If you have the funds, just skip the blowtorch and get a half decent oxy-fuel set up. It'll do everything the torch will and pile more and not be much more expensive.

>>325992
Okay, here's where we messed up. I'm talking production, not hobby.

And as far as different operations, that really doesn't matter. a thou is a thou is a thou.

Also, just to point something out. I notice you keep putting a leading zero on your numbers. You don't do that unless talking about metric.

>>325948

>10" bar to 1" with the same tolerance would be impossible.

No it wouldn't. It's been done, it can be done again. Just because you've never seen it doesn't mean it can't be done.

>Your claim that a machinist can do 0.0005" is meaningless and exactly what I was arguing against.

The point of my statement was that a properly set up CNC can easily do less than .0005 in tolerances.


>What I said is that you cannot machine to tenth levels without an incredible amount of money because the temperature change from cutting (or just turning on the machine and running the spindle) fucks everything up.

Now you're just back tracking. You never mentioned anything about cost, you said it simply can't be done due to the part heating up. Guess what, we have formulas for that.

>>325929
It's my hope to do so.

>>325799
Another thing, half a thou is what a good machinist should be able to hit on a conventional machine.

>>325799
And you obviously have no idea how tolerancing and dimensioning works. Thank you for bringing that fact out in the open. Final parts are measured at room temperature, no exceptions for industry. The engineer takes into account the application when finalizing dimensions and tolerances. Do you think the tiles on a spacecraft are measured at the temperature they are during re-entry? No, they're measured at room temperature and are meant to expand to the proper size under that heat. The amount of ignorance when it comes to metalworking on this board is astounding,

>>325720
Yes it does. It's not uncommon to have a tolerance of .0001. Half a though is nothing.

>>325357
Most ballistic plates are pure ceramic nowadays due to weight. They're a lot more fragile than steel though and don't stop as many rounds.

>>325272
>cost-effective way to obtain titanium
There isn't one.
>what have you guys in the ways of building a forge and making my own tools
Google is your friend. Don't make what you can buy from a reputable manufacturer unless you can actually make an equally good item. This is key in metal working
> create armor that can withstand ballistic force.
3/8 steel plate. There.

No tips, but I've got an internet cafe near me that you could draw inspiration from or something.

http://www.netheads.com/

>>310376
Just... Down at any old WalMart? Interesting...

>>310166
I'm a filthy American.

Hi guys, I'm kinda new here...
I wanted to sew some EL wire into a sports coat for a thing I'm doing. Problem is, I don't know where to get any. Can't use internet stores because of time issues. Anyone know of any brick and mortar retailers?

Pardon me, but you appear to be on the wrong board. This is /diy/, where a bunch of people give tips on how to make or fix things to other people. Surely you must have meant to post this on one of our less civil boards, such as /v/ or /soc/.