(Betsy, Travis, Joe O)

We spent all day today moving things around in an effort to verify that all 8 of the ITMx QUAD masses, the12 blade springs, and the 20 actuator/sensor pairs were free of mechanical intereference such that we could move on with height diagnostics.  Yesterday, the QUAD was left in a state where there was obvious course yaw to deal with.   Revisiting that today cause the usual QUAD ripple (ha!) effect where were ended up adjusting X, Y, Z, pitch, yaw, roll of many things since many are coupled mechanically.  As I've stated before, it's a painful iterative process to get a correctly pointed, yet mechanically free QUAD.

At the end of the day, we think we have the main chain pointing back down at the IAS station (on beam path-ish) with sneak peaks of healthy PITCH and VERTICAL DOFs.  SO, I deem this good enough for Jason to remeasure and repost X, Y, Z measurements in the morning.  From there, SEI, please adjust HEPI to fix the height error he posts.  Sorry.

I have nothing further to add to the history that Jason posted in an earlier alog regarding where we introduced the 3mm error we seemed to need for the pilot-ITMx but do not need now...

I'll be out for a 2 of the next business days, so my understanding of the events to take place in this chamber are:

- Jason measure X,Y,Z (Fri)

- SEI HEPI height accomodation - few days

-- Meanwhile, Travis "mic the ITMx TM-to-corner cube for Jason's new length assessment now that things have moved in the QUAD (Fri)

-- Meanwhile, Travis/Arnaud sneak peak TFs on R0 just so we know what to expect there for later next week (Fri, time permitting only)