Table 4 Kinematics parameter values of joint clearance.

From: Motion error analysis of a shield machine tool-changing robot based on a screw-vector method

Parameter

Mean value

Standard deviation

\(d_{i}\)

0 mm

0.2 mm

\(s_{i}\)

0 mm

0.5 mm

\(\omega_{xi}\)

0 rad

0.087 rad

\(\omega_{yi}\)

0 rad

0.087 rad