PROBLEM TO BE SOLVED: To enable anyone to create a measured drawing (projection drawing) simply and correctly without using various measuring equipment and drafting machines used for creating measured drawings of remains. SOLUTION: A projection drawing is a silhouette created by projecting light to an object. What plays a role of projection light extended on a perpendicular spindle to the plane of projection is needed to draw an outline of this silhouette. Moreover, this spindle must be freely movable while always keeping vertical to the plane of projection. The operation portion can be freely moved on the plane of projection smoothly. 1 is fixed on the perpendicular spindle and the guide part can always play the same role as that of the projection light. Projection drawing can be created easily and correctly by installing a writing tool at the intersection of the spindle which is made by one side of the guide contacting the remains and the plane of projection. COPYRIGHT: (C)2005,JPO&NCIPI
