Posts
Notes from a small-budget robot-learning lab: hardware plans, VLA experiments, datasets, and failed runs.
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Calibrating the LeRobot SO-101
Calibration was painless and straightforward. With the leader and follower assembled and connected, I followed the official Hugging Face LeRobot procedure and calibrated the two arms without any notable problems.
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The Servo Was Innocent
The error appeared in software, so naturally I began by suspecting the most expensive piece of hardware.
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Building My First LeRobot Arm
The structural parts were printed on a **Prusa MINI+** using PETG from [Prusament](https://prusament.com/pl/materials/prusament-petg/) and [ROSA3D](https://www.rosa3d.pl/filament/pet-g). PETG made sense for a working prototype: these were not display pieces but brackets, housings, links, and joints that would be handled, screwed together, taken apart, and—although I did not know it yet—occasionally printed again.