OpenArm

OpenArm is an open-source robotic arm hardware platform whose CAD files, bill of materials and assembly guides let anyone build, print and customize it.

Robot arm
Open source
3D printable

Suggested by Robotheca, created by @enactic (opens in a new tab), from github.com/enactic/openarm_hardware (opens in a new tab). Pinned to commit eefc9fa (opens in a new tab).

Fork Download

Hardware license: CERN-OHL-S-2.0 (opens in a new tab)
Software license: CERN-OHL-S-2.0 (opens in a new tab)
Commercial use: Allowed

This repository contains executable files that Robotheca doesn't check. Only run them if you trust the creator.

Which files (1 script)

dev/release.sh (opens in a new tab)

This repository has no photo of the robot yet.

What it can do

Written by Robotheca from the project's documents.

Hosts CAD files, bill of materials and assembly documentation for the OpenArm hardware platform, versions v1 and v2.
Repository holds release tooling; the robot's motion and control capabilities are not described in these documents.

Bill of materials

This repository has no parts list Robotheca can read yet.

Build guide

The guide appears here as you scroll.

Guide by @enactic (README.md), under CERN-OHL-S-2.0.

More guides

Wiring and electronics

Notes written by Robotheca from the project's documents.

Main parts

Printed circuit boards (PCBs) and cables are mentioned as part of the OpenArm KER electronics in the Google Drive contents.
A head camera is an optional add-on for OpenArm 2.0; wiring diagrams for cable manufacturing are listed for v1.

Connections

Wiring diagrams for cable manufacturing are provided in the v1 Google Drive folder.
Wiring for the OpenArm Cell integration is included in the v2 Google Drive contents.

Project information

Difficulty: Advanced
Estimated cost: Not stated
Buildability: 30/100Incomplete documentation
Parts: –
Tools: 3D printer

Buildability30/100

Incomplete documentation

How complete the published files are for rebuilding this robot, measured by Robotheca at commit eefc9fa. It isn't a rating of the robot.

3D and CAD files0/20
No printable parts or CAD files.
Most points to gain: Add the parts to print (STL or 3MF files). Add the CAD source (STEP, or the CAD program's own files) so people can change the design.
Robot description0/15
No URDF.
Add a URDF: the robot can then be seen in 3D and tried in the browser.
Parts list0/20
No parts list in the repository or linked.
Link to your parts list, or add it to the repository (a CSV or a Markdown table) with quantities, prices and where to buy each part.
Software10/15
Code in this repository, instructions to install or run it.
Say which software framework it uses (ROS 2, LeRobot, Arduino…).
Documentation10/15
README of 1,508 characters with 1 picture; 0 build steps.
Split the build into at least 3 steps.
Simulation0/5
No simulation files.
Add a simulation model (MuJoCo, Gazebo, Webots or Isaac).
Licenses10/10
Hardware: CERN-OHL-S-2.0; software: CERN-OHL-S-2.0.

Software

Framework: Not stated
Languages: Shell
License: CERN-OHL-S-2.0

The code

dev/Shell · 1 file

How to run it

Written by Robotheca from the project's documents.

Set up a Google service account and export its JSON key path in the GOOGLE_APPLICATION_CREDENTIALS environment variable.
Install the google-apis-drive_v3 gem, then run generate-file-ids.rb with the next version to regenerate file-ids.tsv.
Merge the updated file-ids.tsv to main, clone the repository, and run dev/release.sh with the version number to tag and push a release.

Robotheca doesn't review code. Read it before running it.

Project files

Every file of the project: code, CAD, electronics, guides, at commit eefc9fa.

Community

Questions and improvements go to the creator's repository.

Photo