Sskki's 4-DoF Snap-Fit Eye Mechanism

Description

A 4-DoF animatronic eye mechanism that is completely 3D printed except for 4 MG90S servo motors. Inspired by Will Cogley's Snap-fit Eye Mechanism.

Degrees of Freedom

1. Eye pan (left / right)
2. Eye tilt (up / down)
3. Left eyelid (open / close)
4. Right eyelid (open / close)

Print Instructions

• No supports required
  • All files are in correct printing orientation
• Designed to print at 0.4mm layer height
  • Smaller layers will improve quality
• Each part should be printed once unless otherwise specified (eg. x2, x4)

Assembly

• Refer to “complete_eye_mechanism.step” for assembly
  • The servo motors are omitted but their position and orientation should be self evident
• Some parts have 0.4mm tall runners to help with bed adhesion
  • Cut them off with a knife or tear them off with pliers
  • They should be easily recognizable, they should be 1 or 2 layers tall
  • “frame_eyelid_servo_clip_left.step”, “frame_eyelid_servo_clip_right.step” and “frame_y_axis_servo_clip.step” each have 1 wide runner across the middle
  • “x_axis_frame” has 4 runners