The prices have increased, and even before people called it too expensive.

I am just wondering - do you have one? What do you use it for? I've been thinking of getting one (as a business expense, I guess the price is high, but then again - what other option do you have for compute? renting GPUs is quite expensive, any comparable amount of VRAM is very expensive - ok if you have space and mostly want to do inference, I guess you have better options (3090 or 5090)

For me, I have just been considering having some more compute available for robotics, finetuning, trying out selfhosted and fine tuned LLMs, among other things. My other setup (M1Pro 32GB and a 1070 Mini) could work for some stuff, but especially for the robotics part it's mostly about NVIDIA...

Curious about any experiences.

I'm info dumping some links about open-source robotics. The rabbit hole runs deep and this barely scratches the surface.

Disclaimer: I haven't tried any of these yet. Based on a cursory search and following links from the great Open-source robotics Wikipedia page.

Robotics simulation on Godot

• https://github.com/flynneva/godot_ros - Proof-of-concept integrating ROS2 (Robot Operating System) with Godot, for a 3D robot simulation environment. (Updated 8 months ago)

• https://github.com/nordstream3/Godot-4-ROS2-integration - A fork(?) of the above. The readme is clearer with visual examples of what it's meant for. (Updated 12 months ago)

• https://github.com/plaans/gobot-sim - A top-down 2D factory simulation of packages being processed by machines. (Updated 3 months ago)

• https://lab.nexedi.com/nexedi/godot-modbus-demo - Exposing a modbus interface to control simulated industrial components. (Updated 5 years ago.) Comes with a blog post which might be more recent (a year ago?).

• https://arxiv.org/abs/2412.18408 - "Exploring Flexible Scenario Generation in Godot Simulator" about generating simulated physical scenes for testing computer-controlled cars. Write-up only with no code. (Submitted 9 months ago)

Robotic car simulation on Unreal Engine and Unity

• https://github.com/carla-simulator/carla - "CARLA is an open-source simulator for autonomous driving research." They mostly target Unreal Engine. Regularly updated and popular with 13k stars on GitHub.

• https://github.com/microsoft/AirSim - Microsoft and IAMAI collaborated (plus DARPA funding?) to create an open source simulation platform for both flying drones and autonomous cars. Targets Unreal Engine and experimentally Unity also. Soon being sunset and replaced with a new project confusingly named "Project AirSim."

• https://github.com/iamaisim/ProjectAirSim - The successor to AirSim. The GitHub shows it's only at version 0.1.1 though.

Robot Operating System (ROS2)

• https://github.com/ros2/ros2

• https://docs.ros.org/en/kilted/Tutorials.html - Tutorials beginning with TurtleSim, a top-down 2D turtle scene where you control turtles. Looks like ROS2 uses familiar network messaging patterns like Publish-Subscribe.

• https://vimeo.com/osrfoundation/videos/sort:date - Presentation videos. Looks like the Open Robotics foundation just completed a developers' conference in Japan two days ago. The presentations from ROSCon JP are Japanese-language-only. Next one is coming very soon this October in Singapore.

How to get started?

That's a lot of links. I'd first figure out what I want to do. Humanoid robots seem popular lately—like the Berkeley 3d printed robot—so it'd be interesting to start there, although it doesn't map cleanly onto the projects I linked. So maybe if I imagined a robot with a human torso and arms, but with wheels and car-like locomotion. Then I could use a combination of the car simulators and probably ROS2 to deal with the upper body components? Or maybe there is another solution for the torso and arms that is a more direct fit than ROS2? Maybe iRobot/Roomba has a better solution for the car-like locomotion at this small scale?

Anyone used these before and have a story to share? Anyone curious to try one out and report back? I plan to, but no idea on my schedule.