We've got all kinds of welding Instructables on the site, including how to use MIG and TIG welders, how to make your own spot welder from scratch, a stick welder from a set of batteries and a microwave, and plenty of other tips and tricks to help you start your own metal shop, or just brush up on your skills and learn something hot, molten, and new.
at least i think its run by yahoo, anyways freecycle would be ideal by the sounds of it
So, Just type local recycling groups into Google and your location. This way you'll find out what is available in your area. Freecycle is NOT the be all and end all of local community recycling/salvaging. There is so much more choice :-)
ta very much
Perhaps Instructables could set up some tests by which we, the student body, could demonstrate successful learning, and be rewarded with a certificate signed by Eric the Great (who founded instructables) which we could use for job apps, capability assurance, and wall hangings.
But--until that happens, I will still be spending way too much time on this site, and learning way too much about things I don't need to know, but really enjoy learning about, so I can mystify my associates with how knowledgeable I am.
That said, there were other professionals before their schools were established.
Some notable examples are physicians, dentists, butchers (who sometimes worked as physicians/surgeons), architects. Also, the manufacturing of all sorts of items (such as medications, body orthocis, construction equipment).
The point is that a professional school emphasizes certain qualities and skill sets that most be met before one is licensed and approved to practice a trade. Standardization ensures quality, consistency and interchangeability. A certified welder must meet basic skills for their craft.
Welding is a difficult thing to do correctly. There are a lot of things that can go wrong. The sort of items being welded here are very simple. Structural welds on tanker ships are critical. Your auto has welds that are done by machines because they are faster, cheaper and consistent in their quality.
Here is a some industry that have mission critical, human welds:
http://www.boilermakers.org/
And here is the welder's union:
http://www.aws.org/w/a/
Take note of the many, many certifications.
"For safety sake, take a welding class at your local college or trade school."
That to me is like saying you would need to take a class to use a skill saw, obviously a skill saw has the potential to be deadly, but with proper safety it's a great tool. That doesn't mean you need to take a class to use a skill saw. I disagree with anyone saying you need to take a welding class to get started welding.
Cable = Capable
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"For safety sake, take a welding class at your local college or trade school."
Regarding abilities, the point is well taken. A hobby is a hobby. Plenty of people work on cars without being certified. And plenty of them are fine. Sometimes, just sometimes, I see things that make me wince or move over a couple of lanes.
A perfect example are car brakes. I fear many people who change their own brakes. Oil change, knock yourself out. Putting a K&N air filter on your car and believing that you are faster, have at it. But not brakes. And that's where I feel that a class can really help someone.
I can't speak for the poster, but in my case everything was self taught (as far as cars go.) It would of been much quicker and fun if I had the chance to join an auto enthusiast club. But there wasn't in my area, and I was a honors students and I really didn't have a chance to take auto classes in school or in Uni.
I imagine that welding could be much the same way. Quickly and competently learning the basics and all of the "ohhh,..that's how you do it" moments is a nice thing. And welds do tend to be more critical and in need of competence than turning a wrench on a car.
You can really benefit from other's experience. Trust me on that. I could of saved days of labor on one car's suspension if I knew a small trick. The same is true for welding. You move over the learning curve *really* quick.
I would love to learn welding done properly. A evening class at a vocational school or Uni would let me use different machines of different qualities under the experience of instructors who've had decades in the field.
Sorry for such a long response.
It does help when you have someone with experience around. Especially with tools. I cannot tell you how many times I needed a tool for a single purpose and had to trounce out and get one.
There are plenty of sites that talk about repairs. You can always pick up a popular mechanics guide to auto repair. They are a good start.
Good luck
Fact of the matter is right now I can't and I don't. The MOT machine should suffice for my needs.
That being said, I fully agree that people interested in welding should sign up for a class at their local community college, they teach a lot of handy stuff there.
Laboratories that test welds usually machine a weld to a specific size and subject them to a pulling test. But that is for getting welding licenses for specialized welding.