Differences between revisions 130 and 173 (spanning 43 versions)
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Editor: MarkBarton
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At Kamioka (Mark, Fabian, Enzo, Perry, Hirata-san):
 * We removed the BF cap to debug the stepper motor. We checked the cabling but didn't find a problem. Eventually toggling the power to the driver box seemed to fix it.
 * We got the wheels removed from the two tall stepladders.
 * We started to rebalance the IM but came to realize that it was unstable for more than trivial pitch and roll (and had been for some time). We moved trim mass from top to bottom and it became unconditionally stable.
 * We rebalance the IM, put back the IRM and adjusted the OSEMs.
 * We took a successful TF in IM-L.
 * We added the security structure ring for below the SF and then added the SF. We noticed the cap is on at the wrong angle (so the keystone lock screws are inaccessible) but we can easily fix that.
 
==== Plan for coming weeks ====
Next week:
 * Everyone (Mark, Fabian, Enzo, Perry Hirata-san) at Kamioka, Monday-Friday except for Hirata-san Wednesday-Friday).
 * Finish SF installation.
 * Finish BF cabling, hang BF/IRM/IM/RM/BS from SF and confirm weight matches load capacity.
 * Re-trim BF as necessary.
 * Get picomotor driver working.
Week after next:
 * Everyone (Mark, Fabian, Enzo, Hirata-san) at Kamioka, Monday-Friday.
 * Prepare for PI installation.		 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.

==== 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>>
 * Finish hanging BS
 * Hang RM.
 * 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>>
Mitaka: Hirata-san (Mon-Fri)<<BR>>

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.

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).

  • Finish hanging BS
  • Hang RM.
  • 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).
Mitaka: Hirata-san (Mon-Fri)

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)