(= (Position (Reference-Point Gimbal-1-Base) (Reference-Point Planar-Mace)) (* (Buslength Bus-Assy) (Basis.Vec (Reference-Frame Planar-Mace) 1))) (= (Position (Reference-Point Gimbal-2-Base) (Reference-Point Planar-Mace)) (* (- (Buslength Bus-Assy)) (Basis.Vec (Reference-Frame Planar-Mace) 1))) (=> (Buslength $X $Y) (Scalar-Quantity $Y)) (=> (Buslength $X $Y) (Mechanical-Component $X))