For the cone to resonate fully I used 11 gauge strings (as suggested by the man who gave me the cone)- it sounded brilliant for a day and then the action started to get higher as the neck started to bow. A few extra screws and a change to 9 gauge saved the day. I also made the mistake of not giving enough of a string angle over the bridge by leaving the tail piece a bit too high so when I changed to smaller gauge strings I got buzzing - I have corrected this with a shim at the bolt on neck, string trees to bring the string height down and will make a higher bridge saddle.
Soundwise it sounds good - better with the heavier gauge strings but I didn't reinforce the neck pocket enough to cope - If I do another I'll probably omit the neck magnetic pickup so I can use a more substantial lump of wood for the neck socket. I also added 4 piezo discs which sound great (2 above on the underside of the "soundboard" or box lid and 2 below on the sound well base. (all linked in parallel ) For more great reso CBG ideas check out Ted Crockers slide show recently added to the forum. Regards, David Tuskmountain said:
cool looks good. How did you make the resonator? How is the sound?