DIY simple footswitch?

There's nothing inherent about the cable choice that would cause a problem (aside from durability). MIDI cables are frequently used with more complex footswitches to transfer data, but often they're used more like conventional cables simply because they offer more individually shielded wires to work with.

Same with CAT5 cables.

Just remember to cap any wire you don't use in the cable.

If you have the jacks to work with, why not?

EDIT: The only thing I'd be concerned about is whether you've labeled everything correctly. But you won't know for sure until it's tested.

 

Cool, I'm interested in this too. My new amp has a jack for a footswitch on the back. And I think making one would be cheaper than buying one.

 

Nothing, really. But don't "finish" the box until you've tested it. For all you know, you might have some labels backwards. The only problem one I can forsee may be with the two switches running on the TRS line - you could have them backwards. But then again, they might be correct.

So... test first, and THEN label your switches.

You could order a Hammond enclosure (available in a variety of sizes) from numerous places online. Most of what I've seen at Radio Shack are made from ABS plastic... not the ideal choice for durability.

 

no.