Figure 5-9 shows the circle-point and center-point circles for the Chebyschev straight line linkage for choices of B2 26o, o2 97.41°, ou3 158.18 for the left dyad 158.18o for the right dyad. In this example the two larg and Y2 360, y2 97.410, v3 er circles are the center-point circles which define the loci of possible fixed pivot loca- tions O2 and O4. The smaller two circles define the loci of possible moving pivot loca-