This is the mothership of Goauld Anubis. It has mechanism inside which allows it to retract the superweapons. All the moving parts are linked into that mechanism so one movement will do all. Appart from that, it comes with a fleet of 8 Hatak class ships which could be docked with the mothership.

It is in scale with my Atlantis model

https://www.reddit.com/r/Stargate/comments/x85arv/3d_printed_anubis_mothership_with_hataks_and/

For the assembly I strongly suggest to watch the following playlist in which I describe the model and show the assembly process

I also added a support if you want to display it in deployed state ;)