FORMATION OF THREE-DIMENSIONAL SHAPE

摘要

PROBLEM TO BE SOLVED: To provide a method for forming a three-dimensional shape by which thickness of a photocuring layer can be accurately set. SOLUTION: A liquid storage tank 10 is equipped with a liquid level control means which consists of a drainage port 18 for discharging photocuring resin liquid 20 exceeding a standard liquid level Lo a valve plate 70 and its driving mechanism 72 or the like. In a process for sinking a forming base 30, the forming base 30 is once sunk deeper (toΔX) than the depth position (t) corresponding to thickness of the aimed photocuring layer 50. Thereafter, the forming base 30 is returned to depth position (t) corresponding to thickness of the aimed photocuring layer 50 and also discharge of resin liquid 20 due to the liquid level control means is stopped in the interval of this process. After the above- mentioned process is finished, discharge of resin liquid 20 is performed by the liquid level control means.