最后给出了激光烧结上述金属粉末制造齿轮的加工实例，其致密度达理论密度的82%，而横向尺寸误差仅为1.9%。
A case study on SLS of this Cu-based metal powder to fabricate a gear is carried out. 82% relative theoretical density and transverse dimension error of 1.9% are achieved.
实际的六自由度转台存在着制造和安装误差，转台各个铰点的实际坐标与理论值之间会有偏差。
Because the manufacturing error and installing error exist in the actual six DOF platform, there is divergence between each joint point's actual coordinates and its theoretic values.
依据概率统计的相关理论进行机构设计，即考虑构件制造尺寸的随机误差，以保证机构运动的精度在允许的误差范围内。
According to the probability and statistics theory, the mechanism is designed, that's considering the random error of the component to make sure that the motion accuracy is in the allowed error range.
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