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To reinforce the upper part of the booster engine mount, a 3" long piece of T-20 tubing is glued around the mount tube.
One slice is cut lengthwise down the tube.
I used an aluminum angle to mark the tube.
The edge of the angle helped keep the knife in a straight line.
Be careful when using a knife blade on the aluminum, you can cut into the angle piece with a sharp blade.
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Here's the tube after the straight, lengthwise cut is made.
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A loosely wrapped a rubber band held the slit tube in place while the white glue dried.
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