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ARMIKOCHAN V2 8-Axis Arm

An open-source 8-axis ROS2 robotic arm with 3D-printed planetary gears and FSR-based tactile gripper feedback.

  • Robot arm
  • Open source
  • ROS 2
  • 3D model (URDF)
  • 3D printable

Suggested by Robotheca, created by @kairobyte (opens in a new tab), from github.com/kairobyte/armikochan (opens in a new tab). Pinned to commit bd9e2d4 (opens in a new tab).

Photo and 3D model

ARMIKOCHAN V2 8-Axis Arm, photo from its repository
Photo:@kairobyte (opens in a new tab)MITsource file (opens in a new tab)
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3D preview converted from github.com/kairobyte/armikochan at bd9e2d4, under MIT. View the original files from GitHub (12.7 MB) (opens in a new tab)

Degrees of freedom
8

What it can do

Written by Robotheca from the project's documents.

  • Eight-degree-of-freedom robotic arm designed for high-precision motion
  • Real-time control via MoveIt2 and MoveIt Servo nodes in ROS2
  • Gripper force feedback from force-sensitive resistors with a silicone layer
  • Joint angle feedback from AS5600 magnetic encoders

Bill of materials

This repository has no parts list Robotheca can read yet.

Build guide

The guide appears here as you scroll.

Guide by @kairobyte (README.md), under MIT.

Wiring and electronics

Notes written by Robotheca from the project's documents.

Main parts

  • ESP32 microcontroller for low-latency motor driving and FSR sensor processing
  • Raspberry Pi as an intermediate computer
  • PC or laptop running ROS2 Jazzy on Ubuntu 24.04
  • Nema 17 stepper motors with custom planetary gear sets
  • Force-sensitive resistors (FSR) in the gripper
  • AS5600 magnetic encoders for joint angles

Connections

  • Control chain runs from PC or laptop to Raspberry Pi to ESP32
  • Wires for actuators pass through the cavity inside the actuators