Casio Casiotone MT-105 Battery Cover

thingiverse

My 1 1/2 year old son is completely enthralled by music, and his fascination with my wife's keyboard has reached an obsessive level. My mother discovered a Casio Casiotone MT-105 at Goodwill for $3, but unfortunately it was missing the battery door. Over the past week or so, I've been working on this project and making adjustments along the way - and I'm happy to report that despite its imperfections, it functions as needed, which is all that matters to me.