K. Nagano, Aritomi, K. Tanaka, Kita, Akutsu
Started the alignment of the BRT at the Xend using the transmitting green beam. See here for detail.
We tuned the red light beam, which came from the laser level (sumidashiki), to the center holes of the diaphrams. By reading the height as shown in Fig. 4, the relative height from the top of the BRT base plate is about 166mm, which was consistent with the nominal design. Actually I broght those diaphrams from Mitaka without changing the height from those used to align the BRT at Mitaka, so it should be natural that their center holes were located 166mm height.
The detail of the other pictures and the process of the alignement till today are discussed here.