Upgrade Nova’s "LEFT" arm with this premium STL pack, including a reinforced elbow, modular forearm, and a precision-engineered robotic hand with full wrist articulation.

The hand features 4 individually-actuated fingers and a 2-servo opposable thumb, giving it 6 degrees of freedom for highly adaptive grasping and gesture control. Combined with a 3-DOF wrist (pitch, yaw, roll), this assembly delivers fluid, lifelike motion for advanced interaction.

Built for performance and reliability — no tendons, no slop. Just pure servo-driven control.

Check out the demo: https://youtu.be/GP4ea9a74kA

🔩 Pack Includes:

"LEFT" elbow joint (servo-compatible)

Modular forearm shell with cable channels

6-DOF mechanical hand (4 linear-driven fingers + dual-servo thumb)

3-DOF wrist with full rotation control

Print-ready STLs for standard FDM 3D printers

🧠 Fully compatible with the Nova humanoid robot system (sold separately).

Perfect for robotics developers, makers, and humanoid enthusiasts.

Parts required:

ST3215-HS Servos from Waveshare.com

ESP32 Servo Driver Expansion Board, Built-In WiFi and Bluetooth from Waveshare.com

M2 M2.5 M3 Hex Socket Countersunk Screws from Amazon.com

Carefully follow the wiring table to connect the servos to the driver board.

Ensure all connections are secure and test each part for smooth movement before final assembly.

I sell the software separately, email haydenwoodger0@googlemail.com

3D printing settings

I've used Hyper PLA for all parts printed.

Ensure that parts have strong infill (50%) and 0.8mm resolution to withstand stress and provide durability.

"Left" Arm Upgrade – Elbow, Forearm & 6-DOF Hand