This project is an upgraded version of my previous design, a highly compact and robust animatronic eye mechanism which uses 3D printed components and an Arduino microcontroller. If you are able to get hold of servo balllinks and pushrods, and are reasonably competent with 3D printing, this is the eye mechanism project I'd recommend most!

Contact: [email protected]
Discord Server:   / discord  

Support me on Patreon for a look behind the scenes and a Nilheim Mechatronics sticker pack:   / nilheimmechatronics  

Also check the instructable for comprehensive detailed text instructions: https://www.instructables.com/id/DIY...

Screws: https://amzn.to/3Vmtrjg (this kit should cover you)
Around 40* M2 x 6mm screws
6 10mm M2* screws
6* MG90s servo screws (these come with the servos: https://amzn.to/33VfIlF)
Hobby Components
4 M2* Servo Balllinks: https://amzn.to/3TEbz1R
4 M2 x 25mm* Pushrod Connectors: https://amzn.to/3Pl44uc (keep in mind this is just 2mm threaded bar you could always cut down a 25mm bolt or some plain threaded rod)
Electronics
Arduino Uno: https://amzn.to/3VfGbYR (or anything that can accept three analogue signals, one digital and communicate through SDA/SCL ports)Adafruit PCA9685
16Channel Servo Driver: https://amzn.to/4cijGsg
5V Power Supply, around 4A is more than enough: https://amzn.to/49Wqni0
A female DC power jack to match your power supply, to be soldered to the servo driver board: https://amzn.to/43j0KFC
2 axis Joystick: https://amzn.to/2NR4JnY
Potentiometer (optional): https://amzn.to/2r0nADS
Pushtomake switch (Some joysticks have this built in, but its easier to control when it’s separate: https://amzn.to/32Wnvyh )
10k Resistor: https://amzn.to/374seRU
Jumper cables: https://amzn.to/2NToCuw
6* MG90s servos: https://amzn.to/4afx4vv

Also, a pin vice hand drill might be useful for adjusting hole sizes: https://amzn.to/4afx7rb

Downloads:
Check the blog post on the Nilheim Mechatronics project archive: https://nilheimmechatronics.notion.s...