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Something we do not talk about a lot is finding and marking the center on a piece of wood. 1. The easy way is to mark a square blank with a line across opposing corners and where they cross is the center. 2. A little more is a tool for lathes to find center on either square or round blanks and mark a line. With this tool you can do some irregular shapes by making several lines across the piece and select a spot in the center of all the marks. 3. Use a pencil in your hand extended but not to the center . Rubbing your finger on the edge of the blank mark all four sides and then select a spot roughly in the center of those marks. When center is determined use an awl or center punch to make your center for drive spur and then the opposite end for revolving tailstock. When starting to turn a bow blank with knots or protrusions it may be necessary to balance the piece to turn safely. In this case the center is the center of gravity for the piece and not the visual center. Mount the piece between centers and spin by hand . If it stops in the same place each time with a heavy spot down you will need to adjust the center you used toward the bottom and try again til you are satisfied with the balance and then try at a low speed by turning speed up til shake starts and then back slightly for a safer turning. as the unbalanced areas are removed speed can be increased.
