Faraday Cage

This drawing shows the plan for my Faraday cage. The main body is made from a 4.5" long, 3", schedule 40, steel pipe nipple (actual dimensions are OD 3.500", ID 3.068") . The ends are closed by 3", malleable iron, pipe caps. The aperture for the camera lens was made by first drilling a 1/2" hole and then filing a 7/8" X 1" flat on one side of the nipple, drilling and tapping four 6-32 threaded holes around the 1/2" hole and covering the hole with a piece of 160 X 160 mesh, 304 stainless steel, wire cloth held in place by a matching 1/32" thick, spring tempered, phosphor-bronze plate and four round head, 18-8 stainless steel , 6-32 screws. The camera is bolted to a 1 7/8" wide, 5" long piece of 3/8" thick ultra high molecular weight polyethylene with a 5/8" long, round head, 18-8 SS, 1/4-20 screw and does not touch the shell of the cage anywhere. The video mode button is actuated via a mechanism made from a 1/2" wide, 2 1/2" long strip of 1/32" thick, spring tempered, phosphor-bronze drilled to accept a 6-32, nylon, round head screw and bolt on one end and a 1/4" long, 1/4-20, 18-8 SS, round head screw on the other. Close-up of machining for lens aperature.

Close-up of machining for lens aperature.

This is a close up of the flat and holes machined into the pipe nipple for the camera aperture. Assembled Faraday cage.

Close-up of assembled Faraday cage aperature.

Close up of Faraday cage shutter release.

Unfortunately, the use of this Faraday cage did not seem to mitigate the camera problems I was experiencing. This makes me think that the camera problems do not arise from EMP effects, but the rapidly varying light levels which occur during a wire explosion. Oh well...another paper-weight for my collection.

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