The invention relates to a method for centering a log for veneer peeling in a lathe. The highlighted graphical elements are associated with the selected subpart of the mechanical design. The first imaging section and the second imaging section take a pair of parallax images. Therefore, the porous humidity-control tile can be light, and the amount of adsorptiondesorption per unit weight of the porous humidity-control tile can be improved. The shear member first end extends through the first opening, and the shear member second end extends through the second opening.