| 摘要 |
PURPOSE:To form a rubber stamp in which an outline of a character is thin and the bottom is bold without making use of an etching liquid, by a method wherein photo-setting resin is used, a bottom sphere is formed of a second two-dimensional data, a slope sphere is formed by a fixed ratio between the second and first two-dimensional data by moving a base to a specific direction and a stamp sphere is formed of the first two-dimensional data. CONSTITUTION:A laser beam is projected to liquid surface 32 of a photo-setting resin liquid 31. A base 33 supporting resin wherein a movement is controlled in a direction Z and photo-setting is performed is arranged directly below the liquid surface. In the second two-dimensional data, the bottom sphere 35 of a rubber stamp is formed by curing by setting the light from a scanner on the second Z coordinate point. Then the base 33 is moved in the direction Z, that is, in the lower direction and a contour section of a slope sphere 36 of a character is cured in order, based on a fixed ratio between the second and first two-dimensional data. A stamping sphere of the rubber stamp is cured by scanning based on the first two-dimensional data and a three- dimensional shell of a matrix of the rubber stamp is formed. The three-dimensional shell is peeled off from the base 33 and a separate photo-setting resin layer is formed on the rear. |
