November 18, 2020 - Weekly ME meeting
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Meeting Info =
We will meet Thursday @ 10am EDT via BlueJeans Meeting URL (for video and/or audio call in): https://bluejeans.com/909497334 Phone number (for audio call in): 1-888-240-2560 Meeting ID: 909497334# Passcode : 2864 (anybody can then start the meeting)
Meeting November 19
- Mechanical installation status
- Gun feet are ready.....NEXT Install moves gun table to feet
- 2I plate drilled.....NEXT Install moves 2I magnet fixture to pedestal
- Y pedestals ready, Shaun has (3) pins for cartridges....NEXT Install moves Y-chamber to pedestals
- Wien pedestals aligned, grouted.....NEXT need (3) cartridge pins + Wien girder (100" + 1000 lb)
- A1/A2 pedestals aligned, grouted....NEXT need (3) cartridge pins + A1A2 girder (70" + 800 lb)
- Any concern adding LCW manifold, air manifold, cable tray to pedestals???
- Viewer rebuild status
- (Status) Modify viewer face plate w/ bevel, clean, test
- (Status) Viewer hardware punchlist
- Y-chamber build
- (2) rebuilt viewers + NEG + laser window + IP + Gun3 valve + vee blocks
- Test viewer in/out stroke when chamber under vacuum
- Prebuncher cavity
- clean/dry, re-test freq, set length, weld flange
- Build 2nd cavity (Mark says OK, but w/ update port print and two-step braze)
- Wien filter (on-going)
- (Status) Cut/drill/finish hose clamps for vee-block vacuum/beam tube components support, Shaun give us lengths, CIS to shop
- (Status) 3rd set of blue Wien plates in the shop
- Dummy Cube (on-going)
- (status) Dummy Cube - assemble, deliver to MMF w/ print, fit-up test, MMF measurements
- (status) media:MHD_Dummy Cube Prototype_v4.docx
- A1 cube (on-going)
- (Status...) Waiting on A1/A2 fixtures, due early week of 11/16
- (Done) Leak check
- Scott is back on Thu, he can test drive aperture up/down, same thing, no probs, no shorts.
- A2 cube (on-going)
- (Status...) Waiting on A1/A2 fixtures, due early week of 11/16
- (Done) leak check
- insert aperture, check stroke works okay, no shorts, I'd wait for coils before finalizing with S&A
- DR magnet (after Thanksgiving)
- Full magnet (2 halves) at MMF, Milhous winding second magnet now
- Test setup : magnet + 3" pipe + screws + shims media:201118_MDRshim.pdf
- PSS kicker status
- (Status) Danny ordered 5" spool
- (Status) started on PSS kicker magnet drawings
- (Status) From Lakshmi (11/5)
- PSS kicker magnet design complete; presented to ME and PSS group (Oct 30).
- 3D NX models are in Team Center and provided all required info to ME( Nov 2).
- Awaiting the basic draft drawings of the coil and bobbin to get the price quote from the magnet manufacturer ( Need a week according to DM).
- Gathering documents for the PO.
- Already contacted four companies as part of the pre-quote inquiry.
- Awaiting the circuit diagram and transient characteristics data from JK.
- QW assembly/testing (is there a drawing package)
- (Status) a few drawings checked, waiting on fixes.
- (Arrived) Wien quad crosses shipped 11/4 from CA
- (Status) Wien quad mounting hardware due 11/18
- (Status) Wien quad coils due 11/20
- Danny recommends:
- fit up be done on all of the assemblies prior to welding on the conflats.
- fitted assemblies should then be match marked
- Magnetic measurements can happen on 1 article, prior to welding
- Make up (6) crosses (4 for CEBAF, 2 for UITF)
- General Wien girder build update
- Was girder QA'd?
- General A1/A2 girder build update
- Was girder QA'd?
- (Status) bellows spool through the MFX solenoid on the aperture girder shipped wednesday
- Remaining Jobs
- 2 Will NEG fit 25 l/sec IP on Y => Marcy will check, ask for ENG help if needed
- 13 MHD + MQW protective clamp shells => down the road
- 15 DR 15 deg dipole (backup) => FY21 budget updated
- ME drawings
- wien filter cross sub-assy - DONE
- wien filter cross assy
- wien filter girder sub-assy
- wien filter girder assy
- pss kicker magnet
- pss kicker magnet assy
- aperture girder sub-assy - DONE
- aperture girder assy
- MHD protective clamp
- MQW protective clamp
- tunnel installation drawings
- bread board enclosure
- ion pump supports - DONE, ordered due week 11/23
- MDR shims - DONE
- MQW mounting structure - DONE, ordered due around Turkey-Day
- Update Wien magnet/chamber drawings to reflect as-built
- Update viewer assembly to call out the spring we use for reliable in/out