NInicrusso7·Sep 15, 2020Submission
Show HN: Open-source quadruped robot with robotic arm
61 points · Open discussionnicrusso7
rex-gym
Python2019–2020
nicrusso7 / rex-gym
rex-gym
OpenAI Gym environments for an open-source quadruped robot (SpotMicro)
2Distinct people
6Mentions
0Explicit recommenders
1.1KGitHub stars
What to know before exploring
What it is
OpenAI Gym environments for an open-source quadruped robot (SpotMicro)
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
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This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 5:04:57 PM UTC.
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Mentions over time
HN mentions by month6 dated mentions
Observed mentions: 2019-10-28 17:28:32 UTC to 2020-09-15 17:37:41 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| Oct 2019 | 2019-10-01 00:00:00 UTC | 2019-11-01 00:00:00 UTC | 1 | 1 | 0 |
| Nov 2019 | 2019-11-01 00:00:00 UTC | 2019-12-01 00:00:00 UTC | 0 | 0 | 0 |
| Dec 2019 | 2019-12-01 00:00:00 UTC | 2020-01-01 00:00:00 UTC | 0 | 0 | 0 |
| Jan 2020 | 2020-01-01 00:00:00 UTC | 2020-02-01 00:00:00 UTC | 2 | 1 | 1 |
| Feb 2020 | 2020-02-01 00:00:00 UTC | 2020-03-01 00:00:00 UTC | 0 | 0 | 0 |
| Mar 2020 | 2020-03-01 00:00:00 UTC | 2020-04-01 00:00:00 UTC | 0 | 0 | 0 |
| Apr 2020 | 2020-04-01 00:00:00 UTC | 2020-05-01 00:00:00 UTC | 0 | 0 | 0 |
| May 2020 | 2020-05-01 00:00:00 UTC | 2020-06-01 00:00:00 UTC | 1 | 0 | 1 |
| Jun 2020 | 2020-06-01 00:00:00 UTC | 2020-07-01 00:00:00 UTC | 0 | 0 | 0 |
| Jul 2020 | 2020-07-01 00:00:00 UTC | 2020-08-01 00:00:00 UTC | 0 | 0 | 0 |
| Aug 2020 | 2020-08-01 00:00:00 UTC | 2020-09-01 00:00:00 UTC | 0 | 0 | 0 |
| Sep 2020 | 2020-09-01 00:00:00 UTC | 2020-10-01 00:00:00 UTC | 2 | 2 | 0 |
What Hacker News says
6 sourcesAsk HN: Any paper on quadruped with robot arm?
Hi guys! I’m working on an open source quadruped robot (github.com/nicrusso7/rex-gym). I’ve integrated a robotic arm on the top of the rack (will release a new version soon) and I was wondering if there is any relevant paper regarding interaction with objects (e.g open a door, grasp objects). Thanks!
1 points · Open discussionThis is the link to the OpenGym I mentioned before. There's a couple video on their slack/discord(?) channel. I have to dig for it though.
https://github.com/nicrusso7/rex-gym/blob/master/README.md
In Stanford Pupper: low-cost quadruped robotWell the very first attempt this guys made (https://arxiv.org/pdf/1804.10332.pdf#subsection.6.1) was let the model learn from scratch (open loop, large bounds feedback). An agile galloping gait emerged automatically also in my simulation (https://github.com/nicrusso7/rex-gym#galloping-gait---from-s...), even if the gait was 'noisy'
In Using OpenAI Gym to train an open-source 3D printed robotUsing OpenAI Gym to train an open-source 3D printed robot
135 points · Open discussionSpotmicro OpenAI gym – 3D printed quadruped run gait
3 points · Open discussion