High-grade board material producing method for use in e.g. building construction, involves segmenting stems with angular sections into wedges/quarter cuts, and cutting quarter cuts into boards parallel to perpendicular middle plane

摘要

The method involves centrally segmenting stems with angular sections into 60 degree-wedges or quarter cuts (6-8), and cutting the quarter cuts into boards parallel to its perpendicular middle plane. Heart-shaped boards (9, 10) are sectioned between the quarter cuts of the stems, and the boards sectioned from the quarter cuts exhibit passage rift qualities. The remaining parts of the stems are assembled into blocks in its longitudinal direction to each other, such that cross-sections of the blocks result in continuous wooden plates.