Here is a scaled-down industrial model we made for metallurgy and hydraulic factory. The 3D printed model can intuitively present how the machines and operating devices are placed, and how the procedure works.
Solution
Step 1: Check the STL files, make sure the sizes are correct and there are no missing parts.
Step 2: Add supports for the overhang structures in case they may collapse during printing.
Step 3: Split the parts and arrange the placement of all these models in Cura and process printing. SLA Generic Resin is good enough for general uses.
Step 4: Take out the prints and rinse with IPA. Polish with sandpaper and post-cure them with UV.
Step 5: Color the parts according to the blueprints and then glue them together.