Michael and Yuhang
We replaced the big mirror mount in front of AMC with a compact one. (attached figure 1: the replaced mirror. attached figure 2: the gap between replaced mirror and board)
We have made homodyne DC cable, homodyne power cable, AMC DC PD power cable go through the appropriate hole. (figure 3: extended cable on homodyne power side. figure 4: current cables situation around homodyne)
To close bench, we still need to drill holes on board to let GR inj/ref and IR inj/ref go through (three holes are expected).