Stuff for Type B to do in March 2018 while waiting for deliveries

• Build four geophone assemblies (Okutomi-kun has built five):
  • Have most parts:
    • Four sets of canister parts (body, neck, head).
    • Five geophones.
    • Three circuit boards - probably more exist but need to find.
    • 20 x M8*35 (need 4*16=64)
    • 35 x M8*30 (need 4*8=32)
    • 4 x Viton disks (need 4? or 8?)
    • 123 M8 washers (need 4*24=96)
• Assemble more OSEMs.
  • Have 6 wound coils and connectors (one set, for SR3).
  • Might be able to get third set from Akutsu-san.
• Set up SR3 and SRM racks.

  • Miyakawa-san gave us an empty rack for SR3 => can add boxes and do internal cabling and labels.

  • SR3 rack position is decided (on -X,+Y corner of SR3 cleanbooth) => can do in-air cabling from rack to assembly frame.

  • Miyakawa-san will soon give us an empty rack for SRM and decide position => will be able to do set-up.

• Disassemble broken top filters
  • Set up heavy table in SRM area (first floor, -X side).
  • Find jig and blade tensioning screw.
  • Remove blades from #3 (in SRM area).
  • Store #3 in box.
  • Remove floor panel in SRM second floor.
  • Crane #1 (in SR3 area) to SRM area.
  • Remove blades from #1.
  • Put test weights on table.
• BF rebuild.
  • Move BS Test Hang BF to tent and remove blades. (These blades are for BS-BF and will not be used again.)
  • Find SR-BF blades that were removed to free up a BF base for the BS Final Hang.
  • Move BF with tilted keystone to tent and remove blades.
  • Characterize all SR-BF blades and choose two similar groups.
  • Rebuild two filters.
• Etc
  • Make one set of in-air pico splitter cables (triple and double) for SRM.
  • Make three in-air stepper splitter cables for SR2, SR3 and SRM.
  • Soak the sapphire prisms off the dummy BS for reuse on the SRM metal mass.
• Stuff to have done by other teams
  • Add mushroom top to SRM tank.
  • Put up safety bars