导轨和结构件的几何误差会对机床导轨的跟踪精度产生不利影响。这些偏差是由制造和装配误差、热变形和结构变形等因素引起的。给出了零件级几何和形状偏差对机床导轨跟踪误差影响的映射。还包括基于弹性地基模型的滑动关节处的接触变形的数值算法。利用T型滑道上的自准直仪实验研究了俯仰和偏航误差，并对模型进行了验证。在T形滑道上进行的俯仰和偏航误差测量结果与模型预测结果相比较令人满意。

Geometric inaccuracies of the guide rails and structural parts adversely affect the tracking accuracy of machine tool slideways. These deviations are introduced by factors such as manufacturing and assembly inaccuracies, thermal and structural distortions. A mapping of the effects of component level geometric and form deviations on the tracking errors of a machine slideways is presented. A numerical algorithm for contact deformation at the sliding joint, based on the elastic foundation model, is also included. Autocollimator experiments on a T slideway are used to investigate pitch and yaw errors and to validate the models. Measurements of pitch and yaw error made on a T slideway compare favorably with the model predictions.