Skip to content
Matt Marks
Back to blog
Projects

Robo Chess Arm

Building a robotic arm that can see the board, move the pieces, and play chess.

July 29, 20261 min read

Day 1 — July 28, 2026

Day one started with laying out the 3D-printed parts, servos, and hardware, then assembling the first arms and checking how the joints and grippers moved together.

The Koch v1.1 follower arm, rendered from the project’s open-source CAD assembly.
A completed white robotic arm shown from the side.
A completed white robotic arm with its gripper open.
Robotic arm parts, servos, cables, hardware, and tools arranged before assembly.
The 3D-printed parts, electronics, fasteners, and tools used to build the robotic arm.

Day 2 — July 29, 2026

Day two is underway. We’ll add today’s build notes and photos here as the project progresses.