About this 3D model
My daughter ordered a blue bed for her dolls, Barbies and other dolls of 1:6 scale. I made the model quite massive so I had enough space to place connectors once splitt. At first I tried pegs printed on the one half, but they broke and I had to glue the bed. Now I choose to use holes on both sides, which should be connected with a ca. 0,1 cm piece of filament, I'd choose PETG over PLA. But you'll probably need glue anyway. I also add the whole model for you to make your own split and connectors as you need.