Step 10Making the keyboard frame
Back home I cut off 2 pieces, about 4" longer than the sides of the keyboard. Cut one end on each of these at an exact 45 degree angle and hold these pieces against the right and left side of the keyboard; hold it there with a rubber band or tape and measure from the outside of one cut corner to the other. This is the length of the third piece. Mark it on another cut copper tube and try to get 2 more precise 45 degree angles.
Deburr the edges with files and emerald paper. Now find a method to hold 2 pieces at 90 degrees together. I used bricks and checked with a square. With a propane torch I soldered the pieces together. (I probably should have used some reinforcement)
An alternative method would be using copper L's cut open, but I know I would have needed gazillions of cutting wheels for my Craftsman mini tool :(
If any metal workers read this, I would love to hear any better methods of doing this. Thank you in advance because I know, I will do my monitor in the same manner.
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The black ones with no teeth,
I am pretty sure they make the same type for metal .