Do not forget that when mounting your heads on the shaft, if there is a lack of space, the heads can also be mounted onto the coupling given that it is the fixed part of the coupling as it would still be representative of the axis of rotation. You can also ask your laser alignment supplier for a list of the different available brackets such as magnet brackets that can facilitate the process.

Laser Alignment and Readings Repeatability
After taking readings, with a laser alignment system, when making corrections, how often do you have to correct and correct again? Frustration sets in? Precision