MEVITA: Open-Source Bipedal Robot Assembled from E-Commerce Components via Sheet Metal Welding

Fuente: arXiv
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Hauptverfasser: Kawaharazuka, Kento, Sawaguchi, Shogo, Iwata, Ayumu, Yoneda, Keita, Suzuki, Temma, Okada, Kei
Format: Preprint
Veröffentlicht: 2025
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author Kawaharazuka, Kento
Sawaguchi, Shogo
Iwata, Ayumu
Yoneda, Keita
Suzuki, Temma
Okada, Kei
author_facet Kawaharazuka, Kento
Sawaguchi, Shogo
Iwata, Ayumu
Yoneda, Keita
Suzuki, Temma
Okada, Kei
contents Various bipedal robots have been developed to date, and in recent years, there has been a growing trend toward releasing these robots as open-source platforms. This shift is fostering an environment in which anyone can freely develop bipedal robots and share their knowledge, rather than relying solely on commercial products. However, most existing open-source bipedal robots are designed to be fabricated using 3D printers, which limits their scalability in size and often results in fragile structures. On the other hand, some metal-based bipedal robots have been developed, but they typically involve a large number of components, making assembly difficult, and in some cases, the parts themselves are not readily available through e-commerce platforms. To address these issues, we developed MEVITA, an open-source bipedal robot that can be built entirely from components available via e-commerce. Aiming for the minimal viable configuration for a bipedal robot, we utilized sheet metal welding to integrate complex geometries into single parts, thereby significantly reducing the number of components and enabling easy assembly for anyone. Through reinforcement learning in simulation and Sim-to-Real transfer, we demonstrated robust walking behaviors across various environments, confirming the effectiveness of our approach. All hardware, software, and training environments can be obtained from https://github.com/haraduka/mevita .
format Preprint
id arxiv_https___arxiv_org_abs_2508_17684
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle MEVITA: Open-Source Bipedal Robot Assembled from E-Commerce Components via Sheet Metal Welding
Kawaharazuka, Kento
Sawaguchi, Shogo
Iwata, Ayumu
Yoneda, Keita
Suzuki, Temma
Okada, Kei
Robotics
Various bipedal robots have been developed to date, and in recent years, there has been a growing trend toward releasing these robots as open-source platforms. This shift is fostering an environment in which anyone can freely develop bipedal robots and share their knowledge, rather than relying solely on commercial products. However, most existing open-source bipedal robots are designed to be fabricated using 3D printers, which limits their scalability in size and often results in fragile structures. On the other hand, some metal-based bipedal robots have been developed, but they typically involve a large number of components, making assembly difficult, and in some cases, the parts themselves are not readily available through e-commerce platforms. To address these issues, we developed MEVITA, an open-source bipedal robot that can be built entirely from components available via e-commerce. Aiming for the minimal viable configuration for a bipedal robot, we utilized sheet metal welding to integrate complex geometries into single parts, thereby significantly reducing the number of components and enabling easy assembly for anyone. Through reinforcement learning in simulation and Sim-to-Real transfer, we demonstrated robust walking behaviors across various environments, confirming the effectiveness of our approach. All hardware, software, and training environments can be obtained from https://github.com/haraduka/mevita .
title MEVITA: Open-Source Bipedal Robot Assembled from E-Commerce Components via Sheet Metal Welding
topic Robotics
url https://arxiv.org/abs/2508.17684