Reconstruction of the woodblock using three-dimensional scanning and computer numerical control machining

Woodblocks that have been handed down for hundreds of years that have wear, deformation, and damage in their shape, are sometimes still used for printing. In this study, the original forms of such woodblocks were obtained through three-dimensional digital reconstruction with the appropriate mesh size of the width and the depth of the letters on it, and a replica was produced through computer numerical control machining. The averaged error of the scanned data is 0.0015mm, and that of the replica is 0.0263mm in the depth direction.