simple bench

A simple bench of a single board bent twice, like the walls of an indigenous bentwood box: kerfed, steamed and folded, so the grain runs on unbroken from one leg over the seat to the other. Outside each corner the board rounds off in a quarter circle, by default with a radius of its thickness, while inside the corner stays square. Under the seat a stretcher runs from one leg to the other, its bottom edges shaped like the top of the seat. Set the length, height, depth, thickness and corner radius of the bench, the thickness and height of the stretcher and the profiles of the edges in the control panel: the board data gives the length of the board along its outside and inside faces.