本研究目的是建立一套曲線形狀誤差分析系統。進行曲線形狀誤差的最佳化分析比對，以提供加工時各刀具位置補正量的決定。曲線量測點的位置決定後，由三次元量床量測取得資料點，經曲線擬合，再根據最小平方和法與最佳化設計理論，將量測數據和設計數據相比較，以求得曲線的形狀誤差。最佳化的過程，可使量測時因定位問題，導致曲線因平移和旋轉產生的形狀誤差減低，以獲得正確的各刀具位置補正量。

The purpose of this study is to establish a curve shape error analysis system. Optimum of the curve shape error analysis comparison of the decisions of the tool position correction amount of time to provide the processing. After measuring the position of the decision curve point by Coordinate Measuring Machine obtain data points measured by curve fitting, then according to the least squares method and the optimal design and theory, the measured data and design data phase Compare to obtain the shape of the error curve. Best of the process, can cause problems when positioning measurements, resulting in curve shape error due to translation and rotation of the reduction, to get the correct amount of each tool position correction