Dad has a welder. It's of the stick variety. With this you have a welding rod that you stick in something that is basically a glorified alligator clip. You make sure the object you're welding is grounded. When the stick gets close to the object an arc jumps from the stick to the metal, the stick melts, and two bits of metal you were pointing the stick at are now one. This is the theory anyway.
The arc is so bright that it'll damage your eyes if you watch someone weld. You may not notice it at the time, but in a few hours you'll regret it. So you have to wear a mask. These masks are dark enough that you can stare straight at the sun while wearing them. Yes, I've used them to watch an eclipse and look at sunspots. It should be no surprise then that when you wear the mask indoors you tend to run in to things. Being completely blind makes welding at challenge as well. You have to put up your mask, memorize the scene, nod just enough to make the mask fall in front of your face, and use the mental image of the scene to strike an arc. Once the arc has formed you have enough light to see with and can get some work done. As the stick melts you have to keep adjusting your proximity to what you're working on.
All that that I just said? Yummy didn't have to do any of that. A couple of weekends ago we went to a welding class. Well, it was welding and stuff, really. We went mostly for the welding. Yummy wanted to learn and I thought my skills were getting a bit rusty. We also got to play with a plasma cutter, a horizontal bandsaw, a drill press, and a few different kinds of grinders.
They did have an arc welder, but we didn't try it out. It's just too much of a pain. We used a MIG welder instead. MIG stands for Muttermutter Inert Gas. It's a type of automatic wire feed welder. A thin wire feeds out of the welding gun. CO2, the inert gas in question, flows out around the wire so your weld doesn't react with oxygen to sputter and cough and screw up your weld. Since the wire feeds itself you can pretty much get comfortable and stay a constant distance from the object to weld.
They also had the automatic helmets. I love these things. Dad has one now, but hasn't always. You can see through the mask right up to the moment you strike your arc. It detects the welding light and goes dark. But the arc is bright enough that you can still see.
Anyway. There are pictures.
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Most of their classes are different kinds of glass work. But in the hottest part of the summer they have a different kind of class. Something that isn't quite as hot and miserable to work with. Welding and aluminum casting and nice cool activities like that.
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