Hand adjustable slide table

　High positioning accuracy: The manual module adopts a rolling structure with low friction, high positioning accuracy, and can be used for a long time. Manually detect the standard position of the platform and locate it in a certain direction. Then, at each position, measure the difference between the actual movement distance and the expected movement distance based on the standard position. Repeat the test 7 times and then calculate their average. The test almost includes the entire movement distance. When the model is different, the test should be conducted according to the testing intervals specified for each model, and the maximum average value obtained from each position should be taken as the measured value.