Turn orange screw to clamp or release the yellow workpieces.
It is applied for clamping six cylindrical workpieces or a long plate of unhomogeneous thickness
Distance between two adjacent workpieces is 2a.
Length of the violet bar: 5a/3 + 10a/3
Length of the green bar: 5a/3 + 10a/3
Distance between revolution jpints of the cyan slider: 14a/3
Such dimensions make part clamping forces rather equal.