This is a sketch for a balsa feedback resonator. The cylinder thing is meant to be an exciter attached to a piece of thick paper/cardboard, sitting on top of four balsa struts attached to the inner corners of the resonator. Above the cardboard membrane is a (balsa? pcb?) bridge to hold some great little pickups J found recently. Three pickups, one for each string pulled across the top of the resonator, attached to three locking tuners embedded into one side. The pickups connect to an amp… probably off to the side, but there might be room underneath. The amp powers the exciter, and hopefully there’s room in the bottom for three unamplified line outs from the pickups…
I got tired of making shapes in solidpython2 (tho it is great!) but I was thinking whatever kind of board the pickups are attached to could be sitting on balsa rails, supported with more corner shims maybe. If it was left floating, and the wires were loose enough, it could be repositioned closer and further from the speaker by sliding it back and forth. The strings would thread on one side just through some small holes in the wood, and on the other into tuners mounted on the side.
Maybe a little side attachment box for electronics to hold the amp etc?