Gift for my father birthday, made in plywood 8mm,

Gift for my father birthday, made in plywood 8mm, design in fusion 360 and gcode sender in chilipeppr

My father loved the gift and he asked me how i did it:) thanks for your comments, if anyone need i can share the plans

Nice job, question if you don’t mind as I’m new. Where it bolts together, what are the slots I see