Servo mounted Cat Head with Distance Sensor

I initially made this as an alternative head for Petoi's robot dog Bittle, but it is equally compatible with standard hobby servos. The head has a diameter of 6 cm, and the collar is designed to be positioned at a 30 degree angle.This model has 3 parts: - The collar has a 12 x 23 mm slot for a servo motor shaft to fit through, and gaps for wires at both sides of the servo. Compatible with SG90 hobby servos and Petoi servos.- The head has hollow eyes and space to fit an ultrasonic distance sensor in. The head can be screwed onto the collar with 2 servo motor screws, or glued. Compatible with Ultrasonic Distance Sensors HC-SR04, HY-SRF05, and RUS-04.- A detachable panel closes up the back of the head while keeping the sensor wires accessible.Printing recommendations:Layer height 0.15 looks pretty good3 walls for strengthWall printing order inside to outside for the sake of overhangs.10% cubic infill or less: If you are going to mount it on the Bittle robot, you want it to be light, a