What's the opinion/s on using double sided tape to mount board type decoders such as the Soundtraxx Tsunami2 and Econami?
No I hadn't Ken. Some experimenting might be in order.Have you considered a flexible adhesive caulk?
Be careful with foamy things is that they can hold in heat. So if the foam part is against an electronic part it could overheat and fail. I dislike decoders and other circuit boards that put components on BOTH sides of the board.The double sided tape I can get is from an auto parts store. It's used for attaching trim strips or the plastic rain deflectors on side windows. It's got a thin foam "middle".
What I've done in the end is use small squares of the tape, doubled up on top of each other, stuck to the Econami decoder where the holes are that would normally clip over the factory mount, supplied with e.g. Genesis motors. In order to get the decoder low enough to leave room for the iPhone speaker, mounted to the shell above it ( partly covering 1 of the dynamic fans), it was necessary to stick those squares directly to the brass strip that holds the motor's brush in place. That did leave clearance between that strip and the decoder's underside, which does have a few flat components along there. Fortunately with Athearn's they do make their fans so that air can pass through them, unlike others that don't, so at least with 4 still open, any heat should get out..Be careful with foamy things is that they can hold in heat. So if the foam part is against an electronic part it could overheat and fail. I dislike decoders and other circuit boards that put components on BOTH sides of the board.