Quadruped robot V2.0

This is an upgrade for RoboDog V1.0:
https://www.thingiverse.com/thing:4445119

The latest version (V4) is available there:
https://www.thingiverse.com/thing:4932180

The base frame stay the say but legs were improved with more solid design, new herringbone gears and additional bearings for servo gears to improve stiffness.

Bearings per leg (4x):
- 4x 693ZZ (3x8x4mm)
- 3x 6704ZZ (20x27x4mm)
- 1x 6705ZZ (25x32x4mm)

Bearings per hip (4x):
- 2x 693ZZ
- 2x 6704ZZ

STL files:
https://github.com/RoboLabHub/RoboDog_v2

Sources for robot G-Code controller (requires ROS):
https://github.com/RoboLabHub/RoboDog_v2/tree/master/sources

The instructions how to build, configure and run:
https://www.instructables.com/id/DIY-Spot-Like-Quadruped-Robot/
https://www.instructables.com/id/How-to-Configure-and-Use-Smart-Servos-LewanSoul-LX/

More pictures and further progress at Instagram:
https://www.instagram.com/robolab19/