Hexapod
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DECam hexapod
ADS designed and built for Fermilab the hexapod pointing system for their Dark Energy Survey experiment on the 4.2m Blanco telescope. A twin unit has been delivered to UK Berkeley for teh DESI instrument intalled on the 4m Mayall telescope at Kitt Peak.

The main features of this hexapod are hereafter listed:
  • payload = 3800 Kg
  • X,Y,Z displacement stroke = +/- 10 mm
  • Rx,Ry angular stroke = +/- 100 arcsec
  • stiffness = 700 N/um (axial), 100 N/um (lateral)
  • min incremental step = 1.5 um, 1.5 arcsec
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