These modules should be assembled on a bench before mounting on the vertical breadboard or table. Assembly of these modules can be done in any order.
Core microscope modules
Entrance quarter waveplate
Entrance beam expander
Beam periscope
...
Mountings for pupil relays
Resonant mirror chamber
Fold mirror
Galvo scan assembly
...
Electronic modules
Galvo driver box
Alignment modules
Remote focus alignment jig
Imaging objective alignment jig mount
Data acquisition
PMT and assorted electronics
Imaging software