40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
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Entry  Mon Jul 4 10:30:37 2016, ericq, Update, General, Preliminary vent plans 
    Reply  Tue Jul 5 17:14:02 2016, ericq, Update, General, Vent progress noOsemSide.JPGOSEMside.JPG
       Reply  Tue Jul 5 19:10:41 2016, rana, Update, General, Vent progress jumpEvent20151105.png
          Reply  Tue Jul 5 21:51:35 2016, ericq, Update, General, Vent progress 
             Reply  Tue Jul 5 23:38:42 2016, gautam, Update, General, Vent progress - ETMX SUS Coil driver electronics investigation image.jpeg
                Reply  Wed Jul 6 22:58:01 2016, gautam, Update, General, Vent progress - ETMX SUS Coil driver electronics investigation 
                   Reply  Thu Jul 7 00:25:07 2016, ericq, Update, General, Vent progress - ETMX SUS Coil driver electronics investigation 
                      Reply  Thu Jul 7 10:49:03 2016, gautam, Update, General, Vent progress - ETMX SUS Coil driver electronics investigation UL_glitchMon_Striptool.png
                         Reply  Fri Jul 8 11:35:45 2016, gautam, Update, General, Vent progress - ETMX SUS Coil driver electronics investigation coilGlitchMon.png
                            Reply  Fri Jul 8 11:48:09 2016, Koji, Update, General, Vent progress - ETMX SUS Coil driver electronics investigation 
                               Reply  Fri Jul 8 14:03:26 2016, ericq, Update, General, ETMX removed from suspension zoom.jpg
                                  Reply  Fri Jul 8 16:33:26 2016, ericq, Update, General, ETMX removed from suspension 
                                     Reply  Fri Jul 8 20:44:09 2016, Koji, Update, General, ETMX removed from suspension 6x
                                        Reply  Sun Jul 10 15:38:01 2016, ericq, Update, General, ETMX in guiderod/standoff gluing fixture 6x
                                           Reply  Tue Jul 12 16:08:00 2016, ericq, Update, General, ETMX ruby guided gluing 
                                              Reply  Wed Jul 13 21:13:51 2016, Koji, Update, General, ETMX guide rod gluing / ETMY Magnet gluing 13x
                                                 Reply  Thu Jul 14 22:29:57 2016, ericq , Update, General, ETMX guide rod gluing / ETMY Magnet gluing 
                                                    Reply  Fri Jul 15 16:23:51 2016, ericq , Update, General, Gluing setbacks IMG_2768.JPGIMG_2771.JPG
                                                       Reply  Tue Jul 19 16:39:29 2016, Lydia, Update, General, ETMX magnet gluing/guiderod excess glue removed P7190201.JPGP7190203.JPG
                                                          Reply  Wed Jul 20 13:58:55 2016, Steve, Update, SUS, SUS damping out of vac chamber ETMXrack.jpgfromETMX-satBox.jpgsusDampingSatboxCab.jpgsusDampingSatboxCabl.jpg
                                                          Reply  Thu Jul 21 17:01:59 2016, ericq, Update, General, ETMX magnet gluing/guiderod excess glue removed 
                                                             Reply  Fri Jul 22 23:03:23 2016, gautam, Update, General, ETMX suspension - progress IMG_2828.JPGIMG_2826.JPGIMG_2821.JPGIMG_2822.JPGIMG_2823.JPG
                                                                Reply  Sun Jul 24 03:43:56 2016, ericq, Update, General, Magnet positioning 
                                                                Reply  Mon Jul 25 13:01:49 2016, ericq, Update, General, ETMX suspension - progress IMG_2829.JPGIMG_2830.JPGIMG_2831.JPGIMG_2832.JPGIMG_2833.JPG
                                                                   Reply  Mon Jul 25 13:47:19 2016, rana, Update, General, ETMX suspension - progress 
                                                                   Reply  Mon Jul 25 17:01:54 2016, Steve, Update, SUS, ETMX suspension - progress ITMYside2011.JPG
                                                                   Reply  Mon Jul 25 20:37:46 2016, gautam, Update, General, ETMX suspension - Side OSEM test osem_test_2016_07_25.png
                                                                      Reply  Tue Jul 26 18:07:57 2016, gautam, Update, General, ETMX suspension - Further OSEM Tests OSEM_spectra.pdf
                                                                         Reply  Thu Jul 28 03:22:28 2016, ericq, Update, General, ETMX magnets re-reglued 
                                                                            Reply  Thu Jul 28 13:49:44 2016, gautam, Update, General, ETMX magnets re-reglued ETMX_sideMagnet.JPGETMX_sideMagnet_zoomed.JPG
                                                                               Reply  Thu Jul 28 17:48:17 2016, gautam, Update, General, ETMY LR magnet broke off 
                                                                                  Reply  Thu Jul 28 22:43:03 2016, rana, Update, General, ETMY UL magnet broke off 
                                                                                  Reply  Wed Aug 3 10:52:03 2016, Steve, Update, General, ETMY soaking dish SD1.jpgSD2.jpgSD3.jpg
                                                                               Reply  Fri Jul 29 03:32:30 2016, ericq, Update, General, ETMX suspended once more 
                                                                                  Reply  Fri Jul 29 13:17:34 2016, Koji, Update, General, Oven 
                                              Reply  Thu Jul 14 01:00:33 2016, Koji, Update, General, ETMX ruby guided gluing ruby.jpg
                                  Reply  Thu Jul 28 16:43:01 2016, Lydia, Update, General, ETMX aluminium standoff groove condition wire_damage_4.jpgwire_damage_zoom.jpgno_wire.jpgcomparison_2.jpg
                            Reply  Fri Jul 8 21:22:38 2016, gautam, Update, General, Vent progress - ETMX SUS Coil driver electronics investigation 
             Reply  Wed Jul 6 09:34:26 2016, Steve, Update, General, PRM sensing voltage LR PRM_LR.png
             Reply  Wed Jul 6 19:36:45 2016, Koji, Update, General, SUS Vmon HPF.png160706_ITMX_VMON2.pdf160706_ITMX_VMON1.pdf
                Reply  Thu Jul 7 15:23:39 2016, ericq, Update, General, SUS Vmon coil_drive.png
                   Reply  Thu Jul 7 16:05:55 2016, Koji, Update, General, SUS Vmon 
       Reply  Thu Jul 7 17:12:50 2016, Johannes, Update, General, Vent progress IMG_2621.JPGIMG_2623.JPGIMG_2628.JPGIMG_2595.JPG
          Reply  Tue Jul 12 23:51:16 2016, Johannes, Update, General, Vent progress - ETMY inspection IMG_2679.JPGIMG_2673.JPG
             Reply  Wed Jul 13 00:38:25 2016, Johannes, Update, General, Vent progress - ETMY attempted repositioning 
                Reply  Tue Jul 19 13:21:42 2016, Johannes, Update, General, Vent progress - ETMY attempted repositioning 
       Reply  Sun Jul 10 17:33:00 2016, ericq, Update, General, Vent progress 
          Reply  Mon Jul 11 15:13:22 2016, gautam, Update, General, Vent progress: in-date First Contact procured image.jpeg
Message ID: 12300     Entry time: Wed Jul 13 21:13:51 2016     In reply to: 12292     Reply to this: 12302
Author: Koji 
Type: Update 
Category: General 
Subject: ETMX guide rod gluing / ETMY Magnet gluing 

[Eric, Koji]

  • ETMX: The Al guide rod has been glued on the mirror.
  • ETMY: The UR, LR, and SD magnets have been glued on the mirror.
  • For both, we are waiting for the glue getting cured.

Handing over message to the next step

  • ETMX: The arm of the fixture has probably been glued together with the guide rod. It has to be taken care when the fixture is removed.
    (See
    ETMX gluing section and Attachment 13)

ETMX: guide rod gluing (done) -> fixture unmounting side -> fixture setting -> magnet gluing -> suspend -> pitch balance -> ruby gluing -> air bake
ETMY: magnet (done) -> fixture unmounting -> air bake


ETMY gluing

Mirror transport:
- A transport setup was made with a donut holder for a 3" optic, glass jar, stain less tray, and a CS Stat zipbag. (Attachment 1)

Shimming:
- The magnets have been glued witht the gluing fixture. (Attachment 2)
- We checked the dimensions of the glued magnet and found that the thicker side has to be raised by 1mm. (We used the fact that the relative distance between the wire groove and the magnet is always the same.)
- The ETMs have 2.5deg wedge and this corresponds to 3.2mm height difference between the left and right edges. This meant that the thinner side had to be raised by 4.2mm.
- We used a 0.9mm Teflon sheet for the thicker side (Attachment 3) and two 2.2mm Teflon pieces for the thinner side (Attachment 4). For stabilization of the fixture, two Teflon tubes with a diameter of ~3mm are inserted to the top and bottom side of the mirror (Attachment 5).

Magnet orientation:
- Mirror orientation in the fixture (Attachment 6).
- It was confirmed that existing UR, LR, and Right SD magnets have the polarity of N facing out, S facing out, and N facing out. And we confirmed that this is consistent with ETMX and the procedure document (E970037)
- Along with the procedure document, we arranged the magnet-dumbbells UL, LL, and Left SD magnets to have S-out, N-out, and N-out. (Attachments 7, 8, and 9)

Gluing:
- In prior to gluing, all three dumbbells surfaces were cleaned by acetone and razor blade scrubbing.
- After the epoxy curing test (see below), the three magnet-dumbbell pairs have been glued on the mirror. A single dub of EP30-2 was applied to each dumbbell surface.

- Attachments 10, 11, and 12 shows how glue is spread at each joint.

ETMX gluing

Guide rod positioning:
- The longitudinal position of the guide rod was adjusted using the micrometer microscope such that it located at the center of the mirror thickness.
- The guide rod is not long enough to have the edges sticking out from the form of the fixture arm. Therefore only arm finger of the arm held the guide rod. 
- The height was adjusted to be 1.73mm (68mil) lower than the mirror scribe line. The mirror is fixed on the fixture upside down. So this bonds the guide rod above the scribe line.

Gluing:
- Then the epoxy was applied to the guide rod. The glue was applied to two edges of the rod, but capillary action spread the glue around the rod. It seemed that the fixture and the rod were connected with the glue. Care should be taken when the fixture is going to be removed. (Attachment 13)
- The top side (in the picture) where the stand-off will come is still relatively kept clean. So it must be OK for the stand off. If there is an issue, we can shave the epoxy with a razor blade.

Glue testing

- EP30-2 tends to fail to get cured. In order to check the mixture is properly made or not, we put a test piece into air bake oven.
- The procedure says, 200F 15min bake show if the glue is in a good shape or not.

- We have the temperature sensor setup on a air bake oven, but it seemed that the indicated temperature there is overestimate.
  The heating setting of 2 was enough to show the temp of 100degC although EP30-2 didn't get cured with this setting.

- Our experience says that heater setting of "5" makes the temperature ~90degC. On July 12nd, this setting showed the temp of 90degC. Today (July 13rd) it didn't. In the both cases, the epoxy got cured nicely. So we should use this setting.

Attachment 1: P7138742.jpg  1.941 MB  Uploaded Thu Jul 14 01:22:11 2016  | Hide | Hide all | Show all
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Attachment 2: gluing_fixture.jpg  1.290 MB  Uploaded Thu Jul 14 01:25:24 2016  | Hide | Hide all | Show all
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Attachment 3: shimming3.jpg  995 kB  Uploaded Thu Jul 14 01:31:28 2016  | Show | Hide all | Show all
Attachment 4: shimming1.jpg  986 kB  Uploaded Thu Jul 14 01:32:36 2016  | Hide | Hide all | Show all
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Attachment 5: shimming2.jpg  963 kB  Uploaded Thu Jul 14 01:32:48 2016  | Hide | Hide all | Show all
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Attachment 6: gluing_fixture3.jpg  1.605 MB  Uploaded Thu Jul 14 01:40:54 2016  | Hide | Hide all | Show all
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Attachment 7: P7138747.jpg  1.619 MB  Uploaded Thu Jul 14 01:41:06 2016  | Hide | Hide all | Show all
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Attachment 9: P7138750.jpg  1.288 MB  Uploaded Thu Jul 14 01:41:30 2016  | Hide | Hide all | Show all
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