I was wondering if this would work good for guitar cables. Link I used that to make my patch cables but didnt know if it would be to skinny to use. Does anyone have any better suggestions for using to make instrument cables or will that work?
as long as the conductors at each end correspond correctly, there shouldn't be any problems with what you've got there. Speaker cable however, is different, but that's not your concern.
That is the next thing I will need is some speaker cable.