Welcome dear 3D developer.

Idea is to present a new modular device, where there is a device box consisting from 3 parts,
inside the box there are vertical (blue) and horizontal pcbs (printed circuit boards) and red small pcbs (so called piggy-back).

Suggestion for scenario - company logo, some intro text, device full screen, zoom out to place it to the left bottom corner, 5 horizontal boards (top row) and 4 small boards (bottom row) appear right to the device, device's box opens (as per the existing video, but new framing should be 25 fps), light shines to a place. where the boards should fit, 1 vertical board goes into the box, GPRS logo + text appears, now more faster for other vertical boards - exhange them e.g. like https://www.solarmonitor.cz/download/public/development/SM3-LU/video/ (this takes 14 seonds), NB-IoT logo, another board (exhange now faster), LoRa logo, another board, WiFi logo, another board, WMBus logo, similar for small boards (red ones). All should fit into max 3 min (e.g. 2 or 3 use cases can appear at the end of video).

There are 3D models available in STEP and OBJ formats.
STEP models for the devices's box are from the box manufacturer. They were "milled" in FreeCAD and then meshed and exported into Alias Mesh OBJ format.
Pcb files were taken from our design in Altium Designer and directly exported into OBJ format.
Both file sets were loaded into a 60 MB Blender file, where each board was placed into a separate collection.

However it is possible to mate all objects in Altium, only STEP model can be then exported from it.
In FreeCAD you will need to compound all components and all pcb board parts to be able to mesh them and then export them.
This results in 1 item in Blender.
Quectel modules were prepared this way.

To edit individual parts in Blender, every object body must be meshed separately and the exported.
It is impossible to do this with more complex objects.

Subset of available files can be found at https://www.solarmonitor.cz/download/public/development/SM3-LU/3D/, rest is available upon request after setting an account to our ftp / web repository.
The pcb files were edited not to contain tracks, as this is a proprietary design.

--------------------------------
Now time line should be written and estimated how long every action lasts. Once the scene is in blender moving, such an animation will be rendered and screen files at rate 25-30 fps should be sequenced. I am able to make a video from this, I wrote a short python script to handle individual frame file names.
To summarize - you have STEP models and the task is to move them, zoom them, add light. Then rendering and finally assembling video.
What do you think now?

==========================================
Arina:
--------------
I want to sum up the scenario to check if I understood it correctly. First, the modular device appears, then zooms out, stands aside and opens. Next, there appears a set of boards and also stands aside. After that, one by one each of them comes to the center and zooms in + a corresponding test for each of them appears; and finally it zooms out and stands inside the modular device box. Please, correct me if I missed or misunderstood something.
I also have a question about the texts. Will you add them yourself once the 3D rendered video will be ready? If so, I won't need any texts to be provided for my job

And one more thing. Does any of models have transparent elements such as glassy parts? If you are familiar with Blender you might know that it has 2 rendering modes and the render time differs significantly for them. In case if there are transparent/glassy elements there should be used more advanced render mode and of course it will result with a much longer render time and thus will affect the overall time of work on the video SM3-LU -Gateway for Renewables in a New, More Powerful, Compact and Modular Design