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40m Log |
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Fri Jun 10 16:19:03 2016, ericq, Update, SUS, ETMX watch
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Mon Jun 13 10:01:58 2016, Steve, Update, SUS, ETMX jumps 
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Tue Jun 14 15:55:17 2016, ericq, Update, SUS, ETMX watch
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Tue Jun 14 16:53:16 2016, rana, Update, SUS, ETMX watch
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Thu Jun 16 11:10:17 2016, Steve, Update, SUS, spare ETMX optics preparation to be hanged    
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Tue Jun 28 09:14:27 2016, Steve, Update, SUS, ETMX optics preparation to be rehanged
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Wed Jun 29 08:20:04 2016, Steve, Update, SUS, First Contact shelf life
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Wed Jun 29 14:32:22 2016, Steve, Update, SUS, how to remove epoxy from optics
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Wed Jun 29 16:02:29 2016, Steve, Update, SUS, ETMX beam baffle
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Thu Jun 30 10:03:16 2016, Steve, Update, SUS, how to remove epoxy from optics 
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Thu Jun 30 14:31:02 2016, Chemistry, Update, SUS, NO
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Tue Jul 5 09:25:31 2016, Steve, Update, SUS, how to remove epoxy from optics 
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Thu Jul 7 09:13:54 2016, Steve, Update, SUS, SOS gluing fixture    
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Message ID: 12218
Entry time: Tue Jun 28 09:14:27 2016
In reply to: 12187
Reply to this: 12226
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Author: |
Steve |
Type: |
Update |
Category: |
SUS |
Subject: |
ETMX optics preparation to be rehanged |
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Given the effect on the contrast defect, the consensus at the meeting Wednesday 6-22 was that we should continue to use the existing ETMX optic.
Does this imply that we can simply:
- Vent
- Remove the current ETMX suspension, and optic from the suspension
- Replace the standoffs (and guide rod if necessary), leaving the current magnets in place
- Re-suspend on the current, existing suspension, with new wire clamps
That is, if we are keeping the current optic, do we gain anything by replacing the whole suspension? Is there any reason to remove and replace magnets? (The wire clamps do need to be replaced, as a groove forms when they are installed.)
This could allow us to vent and execute this whole thing sooner.
-Eric Q.
...............................
Yes, I think this is a reasonable approach. Besides the wire standoffs and wireclamps, the only other problem might by a worn groove in the top piece of the suspension (not the clamp piece, but the piece that the clamp holds the wire up against).
How about use the current ETM, but put it into the new suspension body with new wire standoffs?
Quote: |
D Location
Number on
Drawing
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Component
Name
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Baked Clean
Pieces Needed
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Pieces
In Stock
(on tower )
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Notes |
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31,20,19,13 |
viton tips |
|
not cut yet |
baked material in stock |
30 |
6-32x0.75" stops |
4 |
(4) |
|
29 |
steel music wire 0.017" |
not baked |
on roll |
needs good wipes |
28 |
1/4 "washer |
4 |
(4) |
|
27 |
lock washer |
4 |
50 |
install |
26 |
Ag plated 1/4-20x1.25 |
4 |
(4) |
|
25 |
Ag plated1/4-25x.75 & not plated |
20 |
(20) |
|
24 |
SS 4-40x.5 |
2 |
(2) |
|
23 |
SS 4-40x.38 |
4 |
(4) |
|
22 |
spring plunger |
4+2 |
(4+2) |
|
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18 |
magnets, 1.9mm od, length 3.2 mm |
5 |
~30 not coated, rusty |
buy Ni coated ones for future use |
17 |
guide rod, 0.635 mm od, 3.3 mm |
3 |
6 |
Al |
16 |
wire standoff, 1 mm od, 4.8 mm |
2 |
2 |
Al and ruby (ruby groove not centered) |
15 |
short OSEMs |
5 |
6 |
|
14 |
spare ETMX in 40m wiki |
1 |
1 |
confirmed in cabinet |
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|
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12 |
dumbbell standoff |
5 |
6 |
|
11 |
Al stiffening plate |
1 |
(1) |
|
10 |
wire clamp B in sus block |
2 |
(2) |
|
9 |
wire clamp A |
1 |
(1) |
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8-7 |
lower clamp for lifting optics |
2 |
(2) |
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6 |
upper clamp to hold down optic |
1 |
(1) |
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5-4 |
left-right side of tower |
1 ea |
(1ea) |
|
3 |
tower base |
1 |
(1) |
|
2 |
sus block |
1 |
(1) |
|
1 |
lower and upper OSEM holders |
1ea |
(1ea) |
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48 |
sandind fixture for magnet&dumbbell |
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45 |
magnet-dumbbell assemblly fixture |
1 |
1 |
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43 |
guide rod gluing fixture |
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shipped from LOH .... D000335...needs cleaning |
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First contact |
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3-15-2013 purchase |
check expiration date OK |
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FCPEEK peeler ring disk for TM cleaning |
10 front,10 back side |
have sheets only |
32&19mm ID punches ordered |
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GordonBrush custom for LIGO optical cleaning |
~5 |
1 (3/8wide nylonSS) |
more from Calum available |
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EP30-2 epoxy |
have |
have |
expiration date 9-24-2016 |
NOT finished, last edited 6-28
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