Nuance

Nov 25, 2008 21:55

I am fascinated by nuance. And, I don't mean the easter eggs that some artists hide in their works to please the audience. For instance, Jan Van Eycks "Arnofini and his Bride". The image of the artist painted in the convex mirror or the graffiti on the wall that says "Jan Van Eyck was here" is trivial. The nuance is the way the bride is holding her dress. The nuance is the down cast faces. Is the couple ashamed of something? Is the bride well preggers before the wedding date?

Nuance. It's often what is unsaid rather than what is whispered.

Now, if you think I am about to launch into some esoteric essay on some profound insight, you are wrong. I am taking about welding here. Welding; as in merging to bits of metal.

I bought a used arc welder from a poor old fellow who can't use use it anymore do to an onset of ALS. So, I was happy to provide him some holiday cash in return for a pretty good deal. I left my name in case he wants to sell the MIG welder too.

But welding is about nuance. The theory is easy, especially for stick welding. You strike a spark between the electrode and the work, then you keep the gap fairly close, allowing ionized droplets of the stick to fly across the gap to the work.

The devil is in the details. Now, that is an interesting expression. Do you think the meant devil as in "Satan" or as in a wooden joint or place that's hard to reach on a ship. That would fit, if you think about it. The "vision thing" is easy, and is what most of the high paying people in this world do. The details are the tenuous thread that connects the "vision thing" to reality.

Oops.

Anyway, in this case, the detail is welding sheet metal. Sheet metal is very thing. Thousand degree streams of plasma tend to cut right through it. The nuance to sheet metal welding is to move fast enough to lay down a stream of molten rod across some work that is hot enough to blend with the existing metal but not stay in place a fraction of a second too long to burn through. If you aren't in place long enough, you just lay a layer on top of the seam and don't blend the metals.

The solution? Practice.

How do you get from the Bronx Zoo to Carnegie Hall in New York City? Practice.
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