The easiest way to make a robot arm base

I'm designing and 3d printing a robotic arm to hold a camera and make graceful camera movements - like those Bolt Motion Control robot arms that everyone seems to use these days.

In this video I 3d print the base using eccentrically cycloidal gears!

These are the supplies I used: NEMA 17 stepper: https://amzn.to/3gtK3Qd Arduino Mega: https://amzn.to/3nx3Oui 5mm steel rod: https://amzn.to/3HMBGeV Thin wall bearings: https://amzn.to/3gtYLqG and: https://amzn.to/3H7JPZY 1.75mm PLA+ filament: https://amzn.to/3HvzVT5 The PTFE grease came from eBay - search for "50g silicone PTFE grease" ... https://www.youtube.com/watch?v=EsnlUA6U4kI