Differences between revisions 134 and 210 (spanning 76 versions)
Revision 134 as of 2017-09-14 16:23:42
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Editor: MarkBarton
Revision 210 as of 2019-01-04 15:21:23
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Editor: MarkBarton
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This list has been merged into the common Type B list: [[../ToDo]].
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[[../ToDoSR|SR To-Do Items]]

[[#EveryWeek |Every Week]]

[[#ComingWeeks |Coming Weeks]]


== Every Week ==
=== Facilities ===
 * Vacuum and roll floor.
 * Wipe ladders.
 * Tidy tools, parts.
 * Get stuff from [[../WishList]]

== 2017-09-11 ==

=== Main Assembly Sequence ===
 * Debug BF LVDT actuation.
 * --(Debug other actuation.)--
 * --(Remove F0-SF rod and reinstall with hex cable clamp.)--
 * --(Route cables up past hex cable clamps.)--
 * --(Adjust SF trim mass for pitch/roll/vertical.)--
 * --(Route all SF/... cables through to the flange and test.)--
 * --(Cable all PI items through to the flange.)--
 * --(Disconnect the SS from the AF.)--
 * --(Recheck/adjust SF/... yaw.)--
 * --(Roughly level the PI so as to make the SS vertical.)--
 * --(Unlock the IP and adjust the level of the PI and the horizontal FRs to center the IP.)--
 * Check F0 yoke height (top of coil former should be 37.5 mm above bottom of recess in top of baseplate).
 * Test all PI items:
  * Yaw stepper.
  * F0 LVDT sensing
  * F0 LVDT actuation
  * --(Horizontal steppers)--
  * Horizontal LVDT sensing
  * Horizontal LVDT actuation
  * --(Geophones)-- (except one cable broken: #1)
 * Lock the F0 and SF keystones and measure the resonance frequency of the BF GAS.
 * --(Lock the F0 and BF keystones and measure the resonance frequency of the SF GAS.)-- 425 mHz
 * Lock the SF and BF keystones and measure the resonance frequency of the F0 GAS.

=== In parallel, time permitting ===
 * --(Fix links to ADC_MONITOR screens.)--
 * --(Check that all Take/Restore Safe.snap buttons work.)--
 * --(Check that we still have all LBB parts (there was an issue with borrowed lock nuts).)--
 * --(Wipe LLB damper parts with ethanol.)--
 * Figure out how to tighten PI yaw return spring.
 * --(Install LBB Cu damper ring in tank (less Cu for now).)--
 * --(Apply magnets to LBB Magnet rings.)--
 * --(Clean rust from screw holes in LBB magnet ring.)--
 * Fix #1 geophone adapter cable.
 * Fix broken pico adapter cable.

== 2017-09-19 ==
(No work Monday 9/18)
 * Attach Cu segments to LBB damper ring (needs Cu segments and BUMAX countersunk screws, expected 9/20).
 * Pass halves of LBB magnet ring into tank, join, and make sandwich for craning.
 * Crane tank lid off.
 * Crane LBB damper rings to top of tank and suspend.
 * Remove BF- and SF-level crossbars.
 * Remove geophones for craning.
 * Disconnect in-vacuum cables from feedthrough and coil neatly for craning.
 * Attach lifting plates.
 * Lock BF and F0 keystones (but ''not'' SF keystone).
 * Remove F0 keystone top plate; attach lifting fixture.
 * Crane suspension out of assembly frame.
 * Attach LBB upper rods to LBB blade tips and rotate suspension 45° clockwise.
 * Crane suspension into tank and connect upper rods to LBB Cu ring.
 * Unclamp LBB ring "sandwich" so LBB Cu ring is suspended on upper rods.
 * Install LBB lower rods and hook LBB.
 * Measure required ballast for LBB.
 * Add ballast

=== Main Assembly Sequence ===

== Dates ==
 * BUMAX countersunk screws for LBB Cu (by 9/20)
 * SDC screws for LBB half rings: 9/15 (Fri) (have Ag-coated as backup)
 * LBB Cu segments: 9/19-20

== Tasks Not To Forget ==
=== Major Tasks ===
 * Update BS Install Procedure with screenshots from new on-assembly-frame 3D CAD.
 * Finish assembly drawing for LBB and LBB damper ring and post on JGWDoc (Hirata-san).
 * Get pico drive screens fixed (Miyo-kun)

=== Minor Tasks ===
==== Mechanical ====
 * Get clean bag laundered.
 * Put pointy-tipped screw in RM trolley for BS
 * Return/replace borrowed parts:
  * Lock washers for LBB dampers
  * Temporary ballast mass (dog clamps) in BF.
 * Swap in new F0-SF maraging rod (with 8-mm heads) and new receptacles to match.

==== Electrical ====
 * Decide final in-vacuum and in-air cable routing (Enzo).
 * Calibrate all LVDTs (Enzo, Mark). --(BF)--, --(SF)--, PI-GAS, PI-H1, PI-H2, PI-H3
 * Adjust yoke on PI to put top of secondary at TBD mm above top of baseplate (or to give ≈0 counts at nominal height).

==== Real-time and SUMCON models ====
 * Create SUMCON models for full BS and major installation milestones.
 * Create controls design description (cf [[https://dcc.ligo.org/LIGO-T1100378/public|LIGO-T1100378]]).
 * Make table of ADC/DAC assignments and check for consistency with D1503600 and k1visbs (Enzo, Mark)
 * Understand/document/debug Kokeyama-san's DIO stuff.
 * Measure LPCD and HPCD output filter response.
 * Design and install software compensation filters for LPCD and HPCD output filters.
 * Design and install GAS drift compensation filters.

VIS Type B BS Near Term To-Do List

This list has been merged into the common Type B list: ../ToDo.

Archived BS To-Do Items

KAGRA/Subgroups/VIS/TypeB/ToDoBS (last edited 2019-01-04 15:21:23 by MarkBarton)