In building a Spectrum analyzer, I looked for a chassis to fit the size of the proposed cabinet. I couldn't find what I wanted, so I decided to build my own. The project is a Power supply to power the Analyzer.
I went to the Hardware store and found a nice long piece of "U" channel aluminum. There was also a nice 1" flat aluminum strap about 3 feet long. I needed to make a chassis that would fit into the alloted space. The pictures below will tell the story.
The Transformer is a Radio Shack 12.6-12.6 C.T.. Cordwood construction was made on a piece of universal board. The "chassis" is 3/8" deep. As can be seen, two pieces of 1" flat aluminum were fastened at both ends of the two "U" channel runners. With this technique, a chassis of any size can be made. The open frame method lends itself real well to the dead bug technique, There is plenty of room underneath to place parts that are needed and yet cannot be put on top.
One can see the two "U" channels at the top and bottom in this picture with the two aluminum straps at either end.
The method of attachment of the various aluminum parts can be deadily seen here. I made liberal use of the snap rivot gun.