RobotForge

Articles

Tutorials, news, and opinion. Free, no paywall, forever.

Welcome to RobotForge
article·3 min read

Welcome to RobotForge

A community for DIY robotics and physical AI. Here's what we're building and why.

#meta#community
Why open robotics matters more than ever
article·6 min read

Why open robotics matters more than ever

Figure, Tesla, 1X — the humanoid race is closed-source. Here's why the open movement is still the one that wins.

#opinion#open-source#humanoid
A preview of the RobotForge simulator
tutorial·8 min read

A preview of the RobotForge simulator

Browser-based robot physics with Rapier 3D, a Monaco editor, and a JavaScript control loop. Here's what's coming.

#simulator#deep-dive
Your first 20 minutes with ROS 2
tutorial·12 min read

Your first 20 minutes with ROS 2

No robot required. Install, launch turtlesim, publish a velocity message. The fastest honest intro to ROS 2.

#ros2#tutorial#beginner
I stopped buying humanoid robots — and started printing them
article·9 min read

I stopped buying humanoid robots — and started printing them

$20K for a NEO, $30K for a Unitree, $16K for a G1. Or print Poppy for $500. A year of living with both.

#opinion#humanoid#open-source#3d-printing
The $200 robot arm that actually works
tutorial·14 min read

The $200 robot arm that actually works

A 6-DOF arm built from MG996R servos, a PCA9685, and an ESP32. Pick up a coin. Sort blocks. Under-promise, over-deliver.

#arm#servos#tutorial#budget-build
Reinforcement learning on real robots: what actually works in 2026
tutorial·16 min read

Reinforcement learning on real robots: what actually works in 2026

Sim-to-real is finally good enough for amateurs. Here's the minimal stack: MuJoCo MJX, domain randomization, PPO, and a real quadruped on a soft mat.

#reinforcement-learning#sim-to-real#mujoco#quadruped
5 DIY quadrupeds worth copying in 2026
news·10 min read

5 DIY quadrupeds worth copying in 2026

SpotMicro, Mini Pupper, OpenDogV3, Bittle, and Bolt. A field guide with BOMs, skill ceilings, and which one to start with.

#quadruped#roundup#open-source#hardware