Edit: the entire run sold out thanks to HN today\u2014thank you all! And sorry to anyone who missed out. You can get in on the next batch here: https://vassarrobotics.com/newsletter.
We are bringing an upgraded version of the long beloved SO-101 robot arms to a $219 price point with improved mechanical design and added intelligence. See what it can do here: https://youtube.com/shorts/xNyPKJZI400 (demos are sped up as shown in the video)
I\u2019ve spent a few years building RC planes (https://cyo.ng/hangar/) and micro gas turbines (https://set.mit.edu), and I\u2019ve always wished hardware were cheaper so more people could experiment.
I\u2019m now launching a $219 desktop robot-arm kit that keeps LeRobot SO-101\u2019s kinematics, swaps key parts for sturdier, more precise SLA prints, and adds two integrated 480 p cameras. After plenty of supplier haggling, the whole kit costs less than the twelve servos alone. I\u2019ll release the updated mechanical design under an MIT license by June 30.
On the software side, I'll also release an MIT-licensed MCP server by June 30 that exposes the local robot policy as tools for agentic LLMs (Opus 4, o3, etc.) to use in long-horizon tasks. Here's how it works: You can teach the robot new skills through teleoperation. During inference, you simply talk to the agentic LLM using natural language instructions. The LLM then calls the local robot policy through MCP, automatically decomposing your high-level requests into executable robot commands.
Thanks to the LeRobot community for making such an amazing robot accessible. If you\u2019ve contributed to the LeRobot GitHub repo, email hello@vassarrobotics.com for a 20% discount coupon as a small thank-you.
I\u2019d love your feedback! Beyond manufacturing, cleaning up the codebase, and writing docs, I\u2019m considering: a force-controlled gripper, a parallel-jaw gripper, an extra wrist DOF (matching the new Trossen and ARX arms), full force feedback on the leader arm (though that may triple the price), a more affordable version with lower resolution each joint, and a longer-reach variant. Which of these\u2014or something else\u2014would be most useful to you?
You can order it here if you want: https://shop.vassarrobotics.com/products/navrim-robot-that-l.... (Edit: sold out! You can get in on the next batch here: https://vassarrobotics.com/newsletter. I hope we can have your business in the future.)
Looking forward to any and all comments!
---
Edit: A quick explanation regarding shipping times (as stated on our shop page):
\u2022 The first batch of 20 units, which will be shipped by June 30, is sold out.
\u2022 The second batch of 100 units will be shipped by July 15 (unassembled kits) and July 21 (assembled units). The order limit is to ensure we can ship on time and maintain high quality.
For those who have already placed orders: I will reach out individually to ask if you would like to receive weekly progress updates from now until the shipping date."},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["arm"],"value":"Launch HN: Vassar Robotics (YC X25) \u2013 $219 robot arm that learns new skills"}},"_tags":["story","author_charleszyong","story_44240302","launch_hn"],"author":"charleszyong","children":[44240455,44240475,44240480,44240507,44240515,44240584,44240610,44240617,44240634,44240723,44240726,44240729,44240764,44240779,44240804,44240814,44240818,44240853,44240904,44240932,44240971,44241011,44241074,44241186,44241233,44241272,44241291,44241312,44241446,44241489,44241505,44241510,44241571,44241651,44241672,44241722,44241738,44241754,44241795,44241799,44241830,44241984,44242080,44242171,44242239,44242345,44242465,44242501,44242563,44242905,44243085,44243179,44243182,44243305,44243380,44243383,44243385,44243457,44243521,44243809,44243839,44243895,44244007,44244104,44244331,44244417,44244501,44245252,44245894,44246182,44247702,44248368,44249280,44249593,44249725,44249768,44250269,44251521,44252190,44253030,44253089,44253607],"created_at":"2025-06-10T19:12:17Z","created_at_i":1749582737,"num_comments":219,"objectID":"44240302","points":580,"story_id":44240302,"story_text":"Hi HN \u2014 I\u2019m Charles from Vassar Robotics (https://vassarrobotics.com/ - not much there but you can order the robot at https://shop.vassarrobotics.com/products/navrim-robot-that-l...)
Edit: the entire run sold out thanks to HN today\u2014thank you all! And sorry to anyone who missed out. You can get in on the next batch here: https://vassarrobotics.com/newsletter.
We are bringing an upgraded version of the long beloved SO-101 robot arms to a $219 price point with improved mechanical design and added intelligence. See what it can do here: https://youtube.com/shorts/xNyPKJZI400 (demos are sped up as shown in the video)
I\u2019ve spent a few years building RC planes (https://cyo.ng/hangar/) and micro gas turbines (https://set.mit.edu), and I\u2019ve always wished hardware were cheaper so more people could experiment.
I\u2019m now launching a $219 desktop robot-arm kit that keeps LeRobot SO-101\u2019s kinematics, swaps key parts for sturdier, more precise SLA prints, and adds two integrated 480 p cameras. After plenty of supplier haggling, the whole kit costs less than the twelve servos alone. I\u2019ll release the updated mechanical design under an MIT license by June 30.
On the software side, I'll also release an MIT-licensed MCP server by June 30 that exposes the local robot policy as tools for agentic LLMs (Opus 4, o3, etc.) to use in long-horizon tasks. Here's how it works: You can teach the robot new skills through teleoperation. During inference, you simply talk to the agentic LLM using natural language instructions. The LLM then calls the local robot policy through MCP, automatically decomposing your high-level requests into executable robot commands.
Thanks to the LeRobot community for making such an amazing robot accessible. If you\u2019ve contributed to the LeRobot GitHub repo, email hello@vassarrobotics.com for a 20% discount coupon as a small thank-you.
I\u2019d love your feedback! Beyond manufacturing, cleaning up the codebase, and writing docs, I\u2019m considering: a force-controlled gripper, a parallel-jaw gripper, an extra wrist DOF (matching the new Trossen and ARX arms), full force feedback on the leader arm (though that may triple the price), a more affordable version with lower resolution each joint, and a longer-reach variant. Which of these\u2014or something else\u2014would be most useful to you?
You can order it here if you want: https://shop.vassarrobotics.com/products/navrim-robot-that-l.... (Edit: sold out! You can get in on the next batch here: https://vassarrobotics.com/newsletter. I hope we can have your business in the future.)
Looking forward to any and all comments!
---
Edit: A quick explanation regarding shipping times (as stated on our shop page):
\u2022 The first batch of 20 units, which will be shipped by June 30, is sold out.
\u2022 The second batch of 100 units will be shipped by July 15 (unassembled kits) and July 21 (assembled units). The order limit is to ensure we can ship on time and maintain high quality.
For those who have already placed orders: I will reach out individually to ask if you would like to receive weekly progress updates from now until the shipping date.","title":"Launch HN: Vassar Robotics (YC X25) \u2013 $219 robot arm that learns new skills","updated_at":"2026-01-06T23:56:12Z"},{"_highlightResult":{"author":{"matchLevel":"none","matchedWords":[],"value":"naves"},"story_text":{"matchLevel":"none","matchedWords":[],"value":"https://xcancel.com/__tinygrad__/status/2039213719155310736"},"title":{"fullyHighlighted":false,"matchLevel":"full","matchedWords":["arm"],"value":"Apple approves driver that lets Nvidia eGPUs work with Arm 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Think of it as an open alternative to cloud providers, like what Linux is to proprietary operating systems. You can self-host Ubicloud or use our managed service.
Our first use-case is GitHub Actions. We support x64 and arm64 Linux runners; and reduce your Github Actions bill by 10x. We can give you hardware similar to default GitHub runners because of the very high margins on the cloud. One difference with our hardware is that we use local NVMes for better disk performance.
Ubicloud and our GitHub Actions integration is also open source. You can check out our integration here: https://github.com/ubicloud/ubicloud/blob/main/routes/web/we...
For security and isolation, we give you a clean and ephemeral VM for each job. When the job completes, we deprovision the VM and wipe out the block storage device attached to the VM. We set up your firewall rules to lock down access to the VM; and also encrypt your data at rest and in-transit.
(We use Linux KVM and the Cloud Hypervisor as our underlying VM tech. For our block device, we use and extend SPDK: https://www.ubicloud.com/blog/building-block-storage-for-clo...)
Ubicloud runners are also fully compatible with GitHub runners. To get started, all you need to do is change 1-line in your workflow file. Each account gets 1,250 free build minutes per month with standard-2 runners.
We\u2019d love to hear your feedback!
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Ubicloud and our GitHub Actions integration is also open source. You can check out our integration here: https://github.com/ubicloud/ubicloud/blob/main/routes/web/we...
For security and isolation, we give you a clean and ephemeral VM for each job. When the job completes, we deprovision the VM and wipe out the block storage device attached to the VM. We set up your firewall rules to lock down access to the VM; and also encrypt your data at rest and in-transit.
(We use Linux KVM and the Cloud Hypervisor as our underlying VM tech. For our block device, we use and extend SPDK: https://www.ubicloud.com/blog/building-block-storage-for-clo...)
Ubicloud runners are also fully compatible with GitHub runners. To get started, all you need to do is change 1-line in your workflow file. Each account gets 1,250 free build minutes per month with standard-2 runners.
We\u2019d love to hear your feedback!
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