Automatic cats laser tower (yet another)

yet another version of the automatic laser tower.

More: https://youtu.be/sZ_J02TyHJI
Code: https://github.com/TrashRobotics/LaserCatToy

List of parts required for printing:
- arduino_holder.stl x1;
- base.stl x1;
- base_cup.stl x1;
- dummy_battery.stl x1;
- jack_holder.stl x1;
- laser_holder.stl x1;
- laser_link.stl x1;
- servo_link.stl x1;

Main parts:
- arduino Nano v3 (micro USB);
- xl4005 buck step down dc/dc converter;
- 2.1 mm jack connector to terminal blocks;
- power supply unit 12V 1A with 2.1mm jack output;
- laser pointer or laser module KY-008;
- 2 x sg90 servos;
- [links, body and etc.] (following stl files)

Fasteners (length in millimeters):
- Self-tapping screw DIN7981 2.9x9.5 x12;
- Self-tapping screw DIN7982 2.2x9.5 x4;


Designed for PLA.

Support is required only for body (base.stl), for the USB and jack connectors, and for the servo links (servo_link.stl) in the servo connectors.
I recommend printin