To measure the Spring Profile one must use a plunge micrometer and then measure the distance from the top of the Optics Table down to the Spring. For each Spring there are two access points/thru-holes for the micrometer: at the Spring Tip & at the Spring Base (I forgot to measure the Spring Base measurement when I did this last Wed, so I re-did the measurement this morning)
HAM3 Spring Profiles
Spring 1 (where tip location warrants corner location, in other words Spring1 is mounted on Spring Post which has Corner 3 Actuator & CPS, but Tip is in Corner1 zone)
base: 0.388"
tip: 0.375"
Spring 2
base: 0.399"
tip: 0.381"
Spring 3
base: 0.390"
tip: 0.378"
These measurements were made with our clean plunge micrometer. It was fitted with a 2" extension. Measurements are +/- 0.0005" (this is the slop of the locked Lockers). I also made Tip measurements where I avoided the Spring Hatches---just stayed on the Optics Table.