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 * Activity report for week of 12/19
  * Hirata-san made (and Fabian and Mark checked) drawings and parts/fastener lists for the SRM/PRM order and various others: [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5964| D1605964]], [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5965| D1605965]], [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5956| D1605956]], [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5963| D1605963]], [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5977|D1605977]], etc.
  * Fabian designed a simple two-piece hold-down device to immobilize the SRx IMs during the optic and RM hanging. It avoids having to remachine all the IM support bars to allow for hold-down screws. The Type Bp team might also want to use it.
  * Aso-san and Mark discussed the [[KAGRA/Subgroups/VIS/VISMinutes20161216#BFIssue|BF issue]] from last week.
   * It was decided to ask Takahashi-san to take a look at the BF while he's at Kamioka this week.
   * It was decided to have the BS bottom filter moved to Mitaka for tuneup and adjustment as soon as possible in the new year.
  * Raffaele, Aso-san, Mark and Fabian discussed having much smaller/shorter BS and SR stub flags plus longer, coil-only OSEMs.
   * Aso-san volunteered to do the OSEM design.
   * Hirata-san made Pack'n'Go archives of the existing designs as a baseline for Aso-san.
  * Hirata-san searched for missing PR mirror box parts.
  * Miyakawa-san finished recabling the PR2 rack and got the BS real-time model running again. (The problem had been a new requirement for a safe.snap file to be provided in the burt directory, which was imposed by RCG2.9.7.) The model still needs lots of work, but it has the OSEM functionality needed for the next test-hang stage, plus Okutomi-san's improvements.		  * Activity report for weeks of 12/26 and 1/2

  * Hirata-san:
   * Modified parts list and screw list for payload.
   * Sent lists to i-ject and asked for preliminary quotes.
   * Made drawings for some jigs (PR hold-down jig) and some parts for payload (PR/SR wire clamps with disposable jaw pieces - improved version with disposable pieces in both primary and secondary clamps).
   * For Type Bp:
    * Searched for PR gluing jigs.
    * Washed and assembled recoilmass base for mirror hanging jigs, and sent them to Kamioka.
    * Washed additional masses for IM and sent them to Kamioka.
   * For others:
    * Washed IMMT plate and sent them to Kamioka.
  * Fabian
   * Designed a pull down system to fix the PR IM to the EQ stop (similar to the SR one).
   * Worked on design of the SR assembly frame. As hoped, the SR version can be almost identical to the BS version.
   * Worked on design of additional trim mass (≈18 kg) for the BS BF.
   * Checked assembly PR/SR drawings. There were a few corrections/changes.
   * Checked fastener list. There were few corrections/changes.
   * Checked component list for the manufacture order. There were few corrections/changes.
   * Helped in searching for the PR gluing jigs.
  * Mark
   * Started design of SR assembly frame (but then passed it to Fabian).
   * Worked on task lists and schedule.
 * Plan for 1/10-13
  * Mark and Fabian at Kamioka:
   * Finish rebalance of IM
   * Reinstall IRM, adjust OSEMs
   * Replace broken Type 3 cable.
   * Do TFs from IRM OSEMs to IRM and IM OSEMs.
   * Cable up and test BF LVDT and fishing rod (time permitting).
   * Disconnect BF and ship back to Mitaka (time permitting).
  * Hirata-san:
   * More SR procurement.

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

  • Activity report for weeks of 12/26 and 1/2
    • Hirata-san:
      • Modified parts list and screw list for payload.
      • Sent lists to i-ject and asked for preliminary quotes.
      • Made drawings for some jigs (PR hold-down jig) and some parts for payload (PR/SR wire clamps with disposable jaw pieces - improved version with disposable pieces in both primary and secondary clamps).
      • For Type Bp:
        • Searched for PR gluing jigs.
        • Washed and assembled recoilmass base for mirror hanging jigs, and sent them to Kamioka.
        • Washed additional masses for IM and sent them to Kamioka.
      • For others:
        • Washed IMMT plate and sent them to Kamioka.
    • Fabian
      • Designed a pull down system to fix the PR IM to the EQ stop (similar to the SR one).
      • Worked on design of the SR assembly frame. As hoped, the SR version can be almost identical to the BS version.
      • Worked on design of additional trim mass (≈18 kg) for the BS BF.
      • Checked assembly PR/SR drawings. There were a few corrections/changes.
      • Checked fastener list. There were few corrections/changes.
      • Checked component list for the manufacture order. There were few corrections/changes.
      • Helped in searching for the PR gluing jigs.
    • Mark
      • Started design of SR assembly frame (but then passed it to Fabian).
      • Worked on task lists and schedule.
  • Plan for 1/10-13
    • Mark and Fabian at Kamioka:
      • Finish rebalance of IM
      • Reinstall IRM, adjust OSEMs
      • Replace broken Type 3 cable.
      • Do TFs from IRM OSEMs to IRM and IM OSEMs.
      • Cable up and test BF LVDT and fishing rod (time permitting).
      • Disconnect BF and ship back to Mitaka (time permitting).
    • Hirata-san:
      • More SR procurement.

KAGRA/Subgroups/VIS/TypeB/Minutes (last edited 2022-10-28 10:02:46 by fabian.arellano)