Saturday, September 15, 2012

week 3

We annealed a flat stick of brass, cut it up and let it lay in muriatic acid for about 20 minutes. We're going to put those patches on our practice trumpet bell.

Next I had to hammer my patches flat to make them ready to fit my trumpet bell.

That's the first solder job. Soft solder all over the place.

Greg made me take them off to do it again (and I learned a lot in that process)

When I was buffering my solder away to make it ready for new patches, the bell flew out of my hands. It ripped my rod off and I got a small dent in my bell. I was holding the bell wrong, and too low on the wheel.

This time I did a better job at putting those patches (new ones) on the bell. Off to buffer that extra solder!

Finished buffering the solder off, it's starting to get shiny.

Shiny! The difference between where I buffered and where I did not is obvious.

The bell is now shiny and pretty (buffered it with the red compound, which makes it shinier than the yellow one that I used for the first round).

Those round rods are flattened on the ends to see if tone holes (on flutes, clarinets...) are even.
We used a chuck to spin it, and came in with a toolbit, to make it absolutely perfect. This is the before picture.

This is when I had finished facing my big one, look how smooth and flat that thing is!
We have to keep those wrapped up in paper in order not to scratch them.

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