Differences between revisions 130 and 205 (spanning 75 versions)
⇤ ← Revision 130 as of 2017-03-10 13:40:53 →
Size: 1443
Editor: MarkBarton
Comment:
← Revision 205 as of 2017-11-17 14:03:37 → ⇥
Size: 1204
Editor: MarkBarton
Comment:
Deletions are marked like this. Additions are marked like this.
Line 7: Line 7:
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.
 * Mark and Fabian did a huge cleanup of the SR2 area and prepared a workspace for assembling the IM.
 * Fabian did a stocktake of the screws for the SR.
  * We have all we need for the IM, except one type that can be added after the rest of the IP is assembled.
  * We have most of what we need for the rest of the payload, and Hirata-san has ordered the others.
 * Hirata-san worked on SR procurement:
  * Suspension wire
  * SR additional parts (compensation masses, clamps etc)
  * Regular, SDC and BUMAX screws.
  * Additional machining on the BS sapphire prism jig to allow it to be used on the PR/SR mirror box.
  * LBB blade design.
 * Enzo and Kozu-kun (with help from Fujii-kun) worked on export from SUMCON to Matlab, and on filter design).

==== Plan for week of 11/20 ====
 * Holiday on Thu 3/23
 * All at Mitaka.
 * SR procurement, planning (Mark, Hirata-san)
 * SR mass budget (Fabian)
 * BS modeling filter design (Enzo, Kozu-kun)


==== Plan for week of 11/27 ====
 * Fabian at commissioning workshop
 *

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

Type B (Mark)

Past week report

  • Mark and Fabian did a huge cleanup of the SR2 area and prepared a workspace for assembling the IM.
  • Fabian did a stocktake of the screws for the SR.
    • We have all we need for the IM, except one type that can be added after the rest of the IP is assembled.
    • We have most of what we need for the rest of the payload, and Hirata-san has ordered the others.
  • Hirata-san worked on SR procurement:
    • Suspension wire
    • SR additional parts (compensation masses, clamps etc)
    • Regular, SDC and BUMAX screws.
    • Additional machining on the BS sapphire prism jig to allow it to be used on the PR/SR mirror box.
    • LBB blade design.
  • Enzo and Kozu-kun (with help from Fujii-kun) worked on export from SUMCON to Matlab, and on filter design).

Plan for week of 11/20

  • Holiday on Thu 3/23
  • All at Mitaka.
  • SR procurement, planning (Mark, Hirata-san)
  • SR mass budget (Fabian)
  • BS modeling filter design (Enzo, Kozu-kun)

Plan for week of 11/27

  • Fabian at commissioning workshop

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