Differences between revisions 97 and 174 (spanning 77 versions)
⇤ ← Revision 97 as of 2016-12-15 14:09:09 →
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← Revision 174 as of 2017-08-04 13:28:54 → ⇥
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Editor: MarkBarton
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 * Mark, Fabian and Enzo continued BS Test Hang work:
  * We installed the BF fishing rod stepper motor adaptor cable.
  * We tried to install the BF LVDT cable but first we encountered trouble routing it, and then several wires broke at the D-Sub end.
  * We laid 6 in-air cables from the tank to the PR2 rank for BF and SF picos, steppers and LVDTs.
  * We lifted the BF/IRM/IM/RM/BS section to weigh it and check its balance.
   * It was 195.6 kg, which is 18 kg(!) less than the capacity of the SF.
   * There was a major imbalance in roll: with all four built-in trim masses moved up the +Y end, it still needed 270 g of extra trim mass to be level.
  * Unfortunately when we put the payload, the IM was slightly yawed and ended up on the horizontal EQ stop screws. This let the IM-BF maraging rod go slack, which disturbed the leveling of the IM (because every time it is picked up the maraging rod settles in a different place, giving a different suspension point). We may have to partly disassemble the IRM and rearrange the time mass on the the IM.
  * We shipped BS mirror box parts to Shoda-san and components for a new LVDT cable to Hirata-san.
  * We posed for pictures of the BS by a team from National Geographic.
 * Hirata-san
  * Did parts and fastener lists for the SR payload.
  * Did a 3D model with the SR suspension on the BS assembly frame (to help Mark make adjustments to the frame design).
  * Did 2D drawings of Fabian's concept for BS EQ stop parts.
  * Did a 3D model of a wire clamp with replaceable jaw parts (to avoid having to reuse parts with scars from pressure).
  * Did 2D drawings of a new wire clamps for on top of the BS and SR RMs.		 === Type B (Mark) ===
==== Past week report ====
At Kamioka (Mark, Fabian, Hirata-san, Yoshioka-kun):
 * We reconfigured the top of the assembly frame.
 * We cleaned the assembly frame, blowing dust out of the grooves and wiping all surfaces.
 * We recentered the optic table in the bottom of the frame and adjusted the frame until the top was centered over the optic table. We also recentered the trolleys.
 * We re-installed, centered and leveled the IM.
 * We solved two issues with the new wire clamps:
  * Some holes were not properly threaded - Hirata-san retapped them.
  * Some locating pins were loose - we glued them.
 * We mounted the BS mirror box on the trolley and brought it under the IM.
 * We installed the winch system and the 300 µm wires for the BS.
 * We set up the optical lever.
 * Hirata-san finished the new BF. We moved the old BF out of the cleanbooth and the new one in.
 * We suspended the BS and set its height and pitch.

==== Plan for week of 8/7 ====
Site closure: Friday<<BR>>
Vacation: Enzo (Mon), Fabian (Mon-Fri)<<BR>>
Kamioka: Mark (Mon-Thu), Enzo (Tue-Thu), Yoshioka-kun (Tue, Wed), Ohishi (TBD).<<BR>>
 * Adjust RM OSEMs; add new RM cable clamp piece.
 * Hang RM.
 * Run new (longer) OSEM cables.
 * Weigh/trim BS/RM/IM.
 * Suspend BS/RM/IM, add IRM.
 * Lay new in-air OSEM cables.
Mitaka: Hirata-san (Mon-Fri)<<BR>>
 * SR stuff.

==== Plan for week of 8/14 ====
Site closure: Mon, Tue<<BR>>
Vacation: Fabian (Mon-Fri)
Kamioka: Mark (Wed-Fri), Enzo (Wed-Fri), Yoshioka-kun (Wed, Fri), Ohishi (TBD).<<BR>>
 * Bring in BF and hang BS/RM/IM/IRM.
Mitaka: Hirata-san (Mon-Fri)<<BR>>
 * SR Stuff?
Vacation Info:
Enzo: Sat 7/22 through Sun 8/6
Fabian: Fri 8/4 through Mon 8/21
Mark: TBD Mid-Oct

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

Type B (Mark)

Past week report

At Kamioka (Mark, Fabian, Hirata-san, Yoshioka-kun):

  • We reconfigured the top of the assembly frame.
  • We cleaned the assembly frame, blowing dust out of the grooves and wiping all surfaces.
  • We recentered the optic table in the bottom of the frame and adjusted the frame until the top was centered over the optic table. We also recentered the trolleys.
  • We re-installed, centered and leveled the IM.
  • We solved two issues with the new wire clamps:
    • Some holes were not properly threaded - Hirata-san retapped them.
    • Some locating pins were loose - we glued them.
  • We mounted the BS mirror box on the trolley and brought it under the IM.
  • We installed the winch system and the 300 µm wires for the BS.
  • We set up the optical lever.
  • Hirata-san finished the new BF. We moved the old BF out of the cleanbooth and the new one in.
  • We suspended the BS and set its height and pitch.

Plan for week of 8/7

Site closure: Friday
Vacation: Enzo (Mon), Fabian (Mon-Fri)
Kamioka: Mark (Mon-Thu), Enzo (Tue-Thu), Yoshioka-kun (Tue, Wed), Ohishi (TBD).

  • Adjust RM OSEMs; add new RM cable clamp piece.
  • Hang RM.
  • Run new (longer) OSEM cables.
  • Weigh/trim BS/RM/IM.
  • Suspend BS/RM/IM, add IRM.
  • Lay new in-air OSEM cables.

Mitaka: Hirata-san (Mon-Fri)

  • SR stuff.

Plan for week of 8/14

Site closure: Mon, Tue
Vacation: Fabian (Mon-Fri) Kamioka: Mark (Wed-Fri), Enzo (Wed-Fri), Yoshioka-kun (Wed, Fri), Ohishi (TBD).

  • Bring in BF and hang BS/RM/IM/IRM.

Mitaka: Hirata-san (Mon-Fri)

  • SR Stuff?

Vacation Info: Enzo: Sat 7/22 through Sun 8/6 Fabian: Fri 8/4 through Mon 8/21 Mark: TBD Mid-Oct

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