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Entry  Mon Jan 7 16:45:30 2013, Jenne, Update, Alignment, Risers to bring TTs to correct beam height are wrong SR3_7Jan2013_ExtraHoleMachinedAtCorner.JPGTT1_7Jan2013_BasePlateAndRiserHoleMismatch.JPG
    Reply  Tue Jan 8 17:54:34 2013, Jenne, Update, Alignment, Risers to bring TTs to correct beam height are in use 
       Reply  Thu Jan 10 12:22:36 2013, Jenne, Update, Alignment, TT matrix is funny 
Message ID: 7883     Entry time: Tue Jan 8 17:54:34 2013     In reply to: 7878     Reply to this: 7888
Author: Jenne 
Type: Update 
Category: Alignment 
Subject: Risers to bring TTs to correct beam height are in use 

 

 [Jenne, EricQ, Nic, MattA]

* TT1 is in place, aligned so beam hits center of TT1, hits center of MMT1 (used pitch biases to finish pitch).

      * Riser installed, dogged down with 1 dog.

      * TT1 sitting on top of riser, 3 dogs holding TT to table, with riser squished in between.

* IOO table leveled.

      * Almost all of the weights on the IOO table were just sitting there, not screwed down!  One didn't even have a screw, 3 had screws, but they were totally loose.  2 of those screws were in as far as they could go, but they weren't holding the weight.  This means the screw was too long, and should have been replaced (which I did today).  Just because the existing screw was too long, doesn't mean it should be left as-is.  Everything in the chambers must be tightly clamped down, as soon as work on that item is complete!  Anyhow, after finalizing the leveling, I tightened down all of the weights on the IOO table.

* MMT1 tweaked so beam hits center of MMT2. 

* MMT2 tweaked so beam hits center of PZT2.

* Light access connector installed.

 

Sadface notes:

* I dropped a Class B golden-colored 3/16 allen key to the bottom of the IOO chamber.  I can't see it, but Nic thinks he might be able to see it with a mirror, from the BS chamber.  We should look for it when we look for the IR card that is still down there.

* We have an ant in the IOO chamber.  Unfortunately my hands were on the TT1 optic holder ring when I saw it, so I couldn't dash quickly enough to grab it.  I saw it run over the side of the table, and down, but looked under the table and couldn't find him.  Not so good, but I don't know what to do about it right now.  If anyone sees it, get it out please.

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