The idea is this... ABS is rigid enough to use as the body of a guitar, and if I have a resonator tuned for the middle frequency of the instrument, it might help make some good sound.
Some friends and I want to make jug-band instruments. I'm sort of inspired by the wash-tub instruments and the cigar-box bass I've seen people make. This is another variation.
This is an old project... just though I'd do a quick update. It didn't work at all, really... I was working on the assumption that the air moved by the strings would generate enough sound to resonate in the chamber to make the bass sound, but but no good.
Rev 2, if I get to it, will have one end of the strings attached to a movable surface (green at the right side of the image below) at one end of the tube so that the mechanical movement of the strings can be more effectively translated to acoustic energy. Think strings anchored to a 6" speaker cone at one end of the tube with the cone resonating air in the tube...
I like the concept, even though it didn't pan out. What if you just replaced the section of the pipe where the bridge sits with your "speaker cone" and kept the vertical pipe arrangement? I think this would transfer more useable energy from the string into the resonating chamber (but I'm not a luthier, so take that with a grain of salt). I can't wait to see a demonstration video when you get it working! Keep up the good work 👍
I like the concept, even though it didn't pan out. What if you just replaced the section of the pipe where the bridge sits with your "speaker cone" and kept the vertical pipe arrangement? I think this would transfer more useable energy from the string into the resonating chamber (but I'm not a luthier, so take that with a grain of salt). I can't wait to see a demonstration video when you get it working! Keep up the good work 👍