Links 1 and 2 are connected by turning pairs A and B to the base, and their turning axes are perpendicular but do not intersect. Links 1 and 2 contact each other through round cylinder a and edge b-b of triangular prism d. The axis of cylinder a is perpendicular to but does not intersect the turning axis of link 2. Straight line b-b of the prism is perpendicular to but does not intersect the turning axis of link 1.
$508$SL,CL$