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= VIS Type B Near Term To-Do List = | = VIS Type B BS Near Term To-Do List = |
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[[../ToDoOld|Archived To-Do Items]] | [[../ToDoOldBS|Archived BS To-Do Items]] [[../ToDoSR|SR To-Do Items]] |
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[[#SRPrepTasks|Preparation for SR Installation]] |
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== Coming Weeks (2017-06-19, 2017-06-26) == === Facilities === * Remove cling wrap from stuff. * Plug stuff back in (charging station, KOACH filters, OL etc). * Power up rack. |
== 2017-09-04 == |
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=== Design/Documentation === * Design final BF/SF ballast mass assuming BF can be made to work without rebuild (Fabian). |
=== Main Assembly Sequence === * Crane out SF. * Raise BF cap and retrieve lost hex cable clamp PEEK piece. * Crane in SF. * Install SF-BF rod with hex cable clamp. * Route cables via hex cable clamp up to below SF. * Adjust BF ballast mass for total weight and pitch/roll. * Look for missing screw from SF damper Cu segment in washed screws bag and reinstall. * Calibrate SF LVDT. * Install SF main ballast mass. * Cable and test SF fishing rod stepper. * Add SF cap. * Lift and weigh SF/... section. === In parallel, time permitting === * Rearrange arc weights on PI to allow installation of magic wand. * Check that we still have all LBB parts (there was an issue with borrowed lock nuts). * Rearrange magnets on SF damper magnet ring for full three Cu segments. * Find Ni-plated rods for SF damper magnet ring and do fit check. * Find PI-SF rod with 8 mm heads and matching receptacles and do fit check. * Lay more new in-air cabling. * Wipe LLB damper parts with ethanol. * Get Cu O-rings for feedthroughs. * Figure out how to tighten PI yaw return spring. <<Anchor(RealBSHang)>> == Real BS Hang Tasks == === Major Tasks === * Update BS Install Procedure with screenshots from new on-assembly-frame 3D CAD. |
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* Do version of 3D CAD with test-hang arrangement of suspension and LBB damper stuff (Hirata-san). * Do version of 3D CAD with final-hang arrangement of suspension and LBB damper stuff (Hirata-san). === Main Assembly === * Find wrenches for vacuum tank jacks (41 mm and possibly 75 mm). * Adjust jacks to nominal height. * Unlock BF keystone and try running BF fishing rod to fix sag problem (Enzo, Mark). * Adjust height of SF damper ring to give correct Cu-magnet gap. * Do up all EQ stops etc (except SF). * Remove geophones (temporarily, for craning). * Crane suspension into tank. * Hook LBB Cu ring. * Hook LBB. * Crane vacuum tank lid+ring back on. * Remove vacuum tank lid (only) and store on pallet. * Add ballast to LBB. * Replace geophones. * Unlock all but IP and check pendulum is centered in security structure. Adjust with jacks. * Unlock IP and adjust to center with jacks. * Adjust pitch/yaw/vertical of dummy optic. * Start TFs. === Electronics === |
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* Order final OSEM cables (six of 1.7 m, two of 2.2 m, two of 2.4 m; Sato-san). * Disconnect in-vacuum and in-air cabling from feedthroughs. * Remove port covers where feedthroughs will go, move feedthroughs from assembly frame and install on vacuum tank ring. * Reconnect in-vacuum cabling. * Adjust in-air cabling to match 135° rotation of BS. * Reconnect in-air cables. |
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=== LSOL === * Assist Simon with hardware installation of LSOL (week of 6/26?). * Assist Simon with modifications to realtime model for LSOL (week of 6/26?). === Real-time and SUMCON models === * Derive and install PI LVDT matrices. * Check LSOL section of k1visbs model. <<Anchor(RealBSHang)>> == Real BS Hang Tasks == === Major Tasks === * Final ballast mass design/production for BF and SF (Fabian, Hirata-san). * Get final OSEM cables (six of 1.7 m, two of 2.2 m, two of 2.4 m; Sato-san). * Possible rebuild of BF and/or SF * Set up build/test stand for filters. * Get filter test weights. * Find spare BF blade(s). * Prepare real BS: * Coordinate with Hirose-san. * Book transport of mirror (Kashiwa to KAGRA) * Gather mirror box, gluing supplies, prisms, magnets, new flags, new flag jigs. * Solve problem of lack of scribe line on one side of BS (Mark, Hirata-san). * Organize cleanroom gear for Kashiwa trip(s). * Put magnets in flags. * Glue flags/prisms at Kashiwa. * Reclean stuff: * PI (remove Kapton tape etc, etc). * LLB damper stuff, especially Cu segments. * Try rearranging arc weights to make room for magic wand (3D CAD or actual weights; Fabian or Hirata). * If needed based on previous, order longer threaded rods for arc weights on PI (Hirata). |
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* Swap out temporary ballast mass in BF, SF. | * Get clean bag laundered. * Put pointy-tipped screw in RM trolley for BS |
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* Wide-mouth OSEMs from RM to Akutsu-san * Adjust height of crossbars below BF. * If possible, fix galled pole in BF level of EQ stop. |
* --(Wide-mouth OSEMs from RM to Akutsu-san)-- * --(Adjust height of crossbars below BF.)-- * --(If possible, fix galled pole in BF level of EQ stop.)-- |
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* Check inside SF for lost ruler. * Tighten PI yaw return spring. * Get Cu O-rings for feedthroughs. |
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* Calibrate all LVDTs (Enzo, Mark). * Remove cling wrap in BF and install vacuum-compatible heat shrink. * Remove cling wrap on connections for PI vertical stepper and install vacuum-compatible heat shrink (needs wider diameter heat shrink or smaller pins). * Rewire PI horizontal steppers with vacuum-compatible cable. * Adjust yoke on BF to put top of secondary at 6 mm above top of baseplate (or to give ≈0 counts at nominal height). |
* Calibrate all LVDTs (Enzo, Mark). --(BF)--, SF, PI-GAS, PI-H1, PI-H2, PI-H3 * --(Remove cling wrap in BF and install vacuum-compatible heat shrink.)-- * --(Remove cling wrap on connections for PI vertical stepper and install vacuum-compatible heat shrink (needs wider diameter heat shrink or smaller pins).)-- * --(Rewire PI horizontal steppers with vacuum-compatible cable)--. * --(Adjust yoke on BF to put top of secondary at 3.5 mm above top of baseplate (or to give ≈0 counts at nominal height).)-- * Adjust yoke on SF to put top of secondary at 6 mm above top of baseplate (or to give ≈0 counts at nominal height). * Adjust yoke on PI to put top of secondary at TBD mm above top of baseplate (or to give ≈0 counts at nominal height). |
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* Create a proper DAC Monitor MEDM screen. * Improve ADC Monitor MEDM screen. <<Anchor(SRPrepTasks)>> == SR Prep Tasks == === Design/Purchasing === * Do rough mass budget for SR2/SR3/SRM. * Design SR assembly frame. * Design final SF ballast masses (Fabian). |
* --(Create a proper DAC Monitor MEDM screen.)-- * --(Improve ADC Monitor MEDM screen.)-- |
VIS Type B BS Near Term To-Do List
Every Week
Facilities
- Vacuum and roll floor.
- Wipe ladders.
- Tidy tools, parts.
Get stuff from ../WishList
2017-09-04
Main Assembly Sequence
- Crane out SF.
- Raise BF cap and retrieve lost hex cable clamp PEEK piece.
- Crane in SF.
- Install SF-BF rod with hex cable clamp.
- Route cables via hex cable clamp up to below SF.
- Adjust BF ballast mass for total weight and pitch/roll.
- Look for missing screw from SF damper Cu segment in washed screws bag and reinstall.
- Calibrate SF LVDT.
- Install SF main ballast mass.
- Cable and test SF fishing rod stepper.
- Add SF cap.
- Lift and weigh SF/... section.
In parallel, time permitting
- Rearrange arc weights on PI to allow installation of magic wand.
- Check that we still have all LBB parts (there was an issue with borrowed lock nuts).
- Rearrange magnets on SF damper magnet ring for full three Cu segments.
- Find Ni-plated rods for SF damper magnet ring and do fit check.
- Find PI-SF rod with 8 mm heads and matching receptacles and do fit check.
- Lay more new in-air cabling.
- Wipe LLB damper parts with ethanol.
- Get Cu O-rings for feedthroughs.
- Figure out how to tighten PI yaw return spring.
Real BS Hang Tasks
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)
- Calibrate PI vertical LVDT.
- Set yoke on PI vertical LVDT (if necessary).
- Calibrate PI horizontal LVDTs.
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.
Wide-mouth OSEMs from RM to Akutsu-san
Adjust height of crossbars below BF.
If possible, fix galled pole in BF level of EQ stop.
- 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
Remove cling wrap in BF and install vacuum-compatible heat shrink.
Remove cling wrap on connections for PI vertical stepper and install vacuum-compatible heat shrink (needs wider diameter heat shrink or smaller pins).
Rewire PI horizontal steppers with vacuum-compatible cable.
Adjust yoke on BF to put top of secondary at 3.5 mm above top of baseplate (or to give ≈0 counts at nominal height).
- Adjust yoke on SF to put top of secondary at 6 mm above top of baseplate (or to give ≈0 counts at nominal height).
- 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 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.
Create a proper DAC Monitor MEDM screen.
Improve ADC Monitor MEDM screen.