Doorman with eye holder & eyeball improvements

thingiverse

I made some modifications to the original Doorman files after they failed during printing or assembly. The Eyeball holder has 2mm holes to help secure the servos in place (use M2 screws). Additionally, there's a slot to move the middle servo towards the right eye so it doesn't collide with the left eye servo's arm. When printing this part, use supports to ensure a smooth finish. I joined the universal holder (more information below) directly to the eyeball to prevent breakage. Print eyeballs with 8-10 mm wide rafts while gazing down without supports. Make sure to use 100% fan speed or they will deform and turn into nipples (a mistake I've made before). Print the universal joint with coupler, attach the coupler to the joint in the eyeball, and then connect them to the eyeball holder. Be cautious during assembly as the eyeball holder is fragile and can break while attaching the eyeballs. The face features a makeshift bar joining the two sides together so it doesn't detach from the plate during printing (something that happened to me). Remove this bar after printing. Use a raft to print the face. Grab the other parts from the original Doorman files. This project utilizes a modified version of universal joints found at: https://www.thingiverse.com/thing:2640996 I ended up using a Raspberry Pi Zero W, paired with a pi camera in the forehead for face detection and tracking with eyeballs (which was slow due to low processing power). A video showcasing random eyeball movements is attached.