The active means to influence the segment shape by use of the warping harness has been completely redesigned. A very important quality that has been achieved is simplicity. Hence a minimum amount of components is used. Reliability and safety are other aspects that have been greatly improved compared to the prototypes. The design for the M1 segment support provides a solution that not only performs to specification but one that can be operated in a telescope environment, all 798 of them.
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Jan Nijenhuis, Jeroen Heijmans, Remco den Breeje, René Hazelebach, Jan de Vreugd, Will Crowcombe, Daniel Naron, Erik Fritz, Guiseppe Borghi, Ramon Navarro, Luca Sillari, Enrico Sambenedetto, Josef Eder, Fred Kamphues, "Designing the primary mirror support for the E-ELT," Proc. SPIE 9906, Ground-based and Airborne Telescopes VI, 990616 (8 August 2016);