Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

• Hirata-san produced a near-final Inventor assembly of the BS on the assembly frame, for use in writing the assembly procedure.
  • Includes assembly frame modifications suggested by Mirapro, including feet, wheels, lifting eyes, thicker crossbars under BF, IM etc.
  • Includes final rail system except for interface plate to mirror box.
  • Includes full PI with ballast masses.
  • Includes cable clamps.
  • Includes correct versions of BF and SF.
  • Includes new BF pushrod parts to work around different placement of blade screws in new version of BF.
  • Includes cleanbag support bars.
  • Includes key parts of mirror box (enough to check for interference) - needs more work.
  • Does not include various invisible duplicate assemblies that had been present due to cut and paste.
  • After a few more improvements, the new assembly will be sent back to Mirapro.
• Got status from Miyakawa-san on electronics - there should be enough of the boxes AEL is supplying.

• Cleanbag design was finalized; Aso-san is ordering: 160419-ﾁｬﾝﾊﾞｰｶﾊﾞｰⅡ型.pdf

• Quote for flags and prisms was received, but expensive - may drop rigid flag design.
• The mirror box will require only very minor modifications for flags and prisms - Tatsumi-san will arrange immediately.
• Fabian worked on understanding Sekiguchi-san's control design to help decide optimum wire thickness.
• Mark worked on install procedure and schedule.
• Takahashi-san enquired with NIKHEF about oscillator cards for LVDT chassis - lead time would be 3-4 months.