Chandra, Gerardo, Travis

Today we attempted to install both the X and Y arm ITM camera housings.  We successfully installed both of the viewports adapters with the new 1/4" dowel pins.  The installation of the X arm camera housing went smoothly (see pics 1 and 2).  However, when attempting to install the Y arm housing, I noticed that the gap between the expansion bellows of the vacuum system and the camera housing side plates was non-existent (see pics 3 and 4), whereas the X arm has ~1/8' of clearance.  Gerardo measured the length of the bellows in both cases and noted that the Y arm bellows were ~1/4" shorter in length than the X arm, meaning that the height of the peaks of the bellows would be greater.  We'll have to modify the Y arm camera housing to accomodate this difference.  I hope LLO does not have the same issue.