I am soon going to start working on my first useful woodworking project, a basic storage box. Below are the pictures of the cad drawing. I have two questions about the implementation:
1) Normally, I wanted to use box joints throughout the length. But the groove at the bottom disturbed the joint fingers. So I slightly changed the design at the bottom (see the exploded view). What do you think about this change?
2) I left 2mm space between the edges of the bottom and the groove to allow the wood to expand. Is this going to be enough? The wood I will use is sapele.