Obtain or produce the sub assemblies pictures above (See github for detailed assembly instructions, gerbers, and STLs): Polycarbonate front cover. Encoder PCB, Top housing, LCD, Knob, Main PCB, Paddles, Battery, Bottom Housing, screws and washers.
Connect battery to Main PCB, and set both into Bottom houssing
Connect LCD module to main PCB
Place Encoder PCB over boss on Top housing and place both onto Bottom housing and Main PCB
Place Polycarbonate front cover onto Top housing
Install 5 countersunk M3 screws though Front cover
Place paddles between paddle mounds and install 2 panhead M3 screws
Place Knob onto encoder shaft