K. Tanaka, Yano, Akutsu

• Set two laser levels so that they illuminated the (near) center of STM1 (Fig. 1). Red (horizontal) was easy to set because we know the mechanical design is 210 mm (see 16240), while green (vertical) was difficult as we did not have any reference line neither on the floor or anywhere. If there have been such a line, and we could adjust the green laser level location more properly by matching the reference line and a downward light spot emitted from the laser level, for example.
• By the way, Yano-san did the test assembly of the IFI extension the otheer day; seems nice!! (Figs. 2 and 3)