Shoshana, Alexandra, Jim, Arnaud

Today we completed the build of x4 HOQIs (D2500104), wired the capacitive plates of two CRS (following pinout from D2500389, with cap A = Left plate and cap B = Right plate), and hung one CRS with a dummy flexure.

Tomorrow we will align and tune the HOQIs, and hung the CRS with its final flexure.

A few things to note:
*We used undersize (0.0625" for 0.063" hole) dowel pins on the baseplate to set the alignment of the 4 BS cubes, then removed the pins from underneath the plate. While this was our plan B, it worked quite well (initial design was to use 1/16" spring pins, but they are hard to insert without bending them). 
*Some baseplates holes for the dog clamps were not threaded all the way through, we had to use washers to reduce the screw travel range. We will have to order a 4-40 tap and retap those holes.
*Some photodiodes cracked from screwing the setscrew in the holder (but we have enough spares). Details in the HOQI PD Testing tab of the spreadsheet attached to E2400153.
*For next time, we should make sure the photodiode vent hole is not aligned with the setscrew holding the photodiode in place (maybe update drawings D2600047)
*The waveplate holders were scribed with 4 lines for the 1/4 waveplate and 2 lines for the 1/2 waveplate so we can recognize them