Yuhang and Matteo

We installed the second layer breadboard for auto-alignment system. The height from bench surface to the surface of breadboard is 6.5inch which is 165.1mm. If we consider to put a smallest pedestal pillar for QPD, the height of beam on breadboard should be 4.6+1.27cm=5.87cm. Then the height of beam from the surface of bench is 22.38cm.