Marking A Blank

When marking out a blank for turning we often wish to include or exclude certain features. Cut a clear acrylic disk the diameter of the swing of your lathe.  Drill a 1/8” hole in the center.  Place a leg of your dividers in the hole and scribe a series of circles 1” apart.  Drill a 1/8” hole at each point where the concentric and the radius lines cross.  In use, position  the disk to maximize the blank, place an awl in the center hole and a pencil in the appropriate radius hole.  Then rotate the disk with the pencil point to mark the blank.


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