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- Oct 31, 2019
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The cannons must be fixed to the side walls. For this purpose, a ring is attached to a bolt and a hook to the left and right of the cannon. Both go through the inside of the side walls and are fixed on the outside with a round nut. The ring hangs on a bolt. The bolt is made from a square 3x3 mm brass rod: first, I turn the rod to 1mm diameter for a little more than the width of the side wall. I leave a 3x3 mm cube behind the 1 mm round rod and saw off the brass rod. Then I drill a 1mm hole in the cube. On the disc grinder, I flatten the material on both sides of the hole. Then I file the square end round and insert a ring. I solder the ring. Practically all of my machines are used for the small bolt.
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