Yes, the PSU will power everything. The arduino will be connected with USB to the mainboard. The LEDs have resistors in front and will be connected to the 5V of the PSU. For the servos I will use an converter to get 7,4V from the 12V of the PSU.
And up we go. Not much time left, so I need to a bit faster now haha. I painted the doors for the mid section in a bronze tone. The paint was dabbed on with a brush to achieve a rough looking surface. The details then were painted gold with an airbrush. Then I 3D printed a cover for the opening were the weapon and instruments are attached. In addition, the mounting mechanism for the door was reworked. Now I can easily take the door out and it is much stronger that way. So part 3 of 4 is done. The last details will be added at the end. Now I am currently working at the big doors. I started by attaching the rings that I printed some time ago. Therefore, I drew a center line and marked the position of the rings. Then the rings were attahed. Because I don´t trust the glue, every singel ring was secured with four screws from the back. Next up, painting the doors and start installing the hardware.