A couple of questions - what scale did you use ?? Vibrating string length from nut to bridge? And how deep is your soundbox? Did you use a piezo pickup and nylon strings or steel bass strings? How does it sound acoustically just plucking the strings? I scaled your pics and as near as I can tell somehow my coffin dimensions are almost identical to yours. I drew dozens of variations before I settled on the one I am building. I was totally amazed to see your pics since it looks so much like what I am doing.
I have not settled on sound-box depth yet and I am really curious about the answers to this list of question. Please take a moment and reply. Thanks Bill in Palatka
I have designed a coffin bass that is very similar to yours. Parts ordered and received but not built yet. Wanted to ask a few questions on your dimensions. Sent a friend request so we could communicate. I am not a bass player either - just can't stop building stuff - grin. I have a presence on CBN just haven't done much with cigarbox guitars lately. Built more than a hundred before I got diverted. Fascinated with the coffin bass at the moment. Bill in Palatka Fl