Pedro
Pedro is an open-source STEM robot whose 3D-printable parts (arm, gear, servo holder and base) are provided as STL files.
- Robot arm
- Open source
- 3D printable
Suggested by Robotheca, created by @almtzr (opens in a new tab), from github.com/almtzr/Pedro3DFiles (opens in a new tab). Pinned to commit 7c33295 (opens in a new tab).
- Hardware license
- Apache-2.0 (opens in a new tab)
- Software license
- Apache-2.0 (opens in a new tab)
- Commercial use
- Allowed
Photo and 3D model

3D preview converted from github.com/almtzr/Pedro3DFiles at 7c33295, under Apache-2.0. View the original files from GitHub (11.8 MB) (opens in a new tab)
What it can do
Written by Robotheca from the project's documents.
- Pedro is a small robot arm built from 3D-printed parts.
- The repository provides STL files for printing the Pedro robot's arm, gear, servo and base parts.
- A repeat mode is shown in the project images.
Bill of materials
This repository has no parts list Robotheca can read yet.
Build guide
The creator's steps, each with its instructions.
- 1Print the ARM.stl part at 40% infill with support touching build plate
- 2Print the GEAR.stl part at 40% infill with no support
- 3Print the SERVO.stl part at 40% infill with support everywhere
- 4Print the BASE.stl part at 40% infill with support touching build plate
The guide appears here as you scroll.
Guide by @almtzr (README.md), under Apache-2.0.
Wiring and electronics
Notes written by Robotheca from the project's documents.
Main parts
- Servos are part of the robot, as the SERVO.stl print file indicates.
- A Pedro controller board is referenced in a separate repository, not described in these documents.