| 摘要 |
PURPOSE: To attempt shortening changeover time of an optically setting resin in an optically shaping device. CONSTITUTION: A liquid 3 wherein the specific gravity thereof is larger than that of a liquid optically setting resin 2 and it is not mixed in the optically setting resin 2 is put in a lower layer side of a resin bath body 1, and the optically setting resin 2 is put in its upper layer side. An exhaust valve 4 which can be opened from above is provided to a boundary part between the liquid 3 and the optically setting resin 2 in the resin bath body 1. By opening the exhaust valve 4 from above, only the optically setting resin 2 being in the upper layer of the resin bath body 1 is discharged, which can be exchanged. |
