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Micro Robo-Mechanics Lab
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The lab develops small robots and actuators to manipulate tiny objects with precision.
AboutAbout the lab
Developing small, lightweight, energy-saving precision robots.
The Micro Robo-Mechanics Lab researches and develops precise, compact robot systems.
Through the development of small robots and small actuators, the lab works on new technologies that take advantage of their compactness, light weight, energy saving, and environmental friendliness.
The lab covers a wide range of areas: design, analysis, machining, assembly, measurement, control, and automation.
On the lab's website, the lab is introduced under the name "Fuchiwaki Lab."
Key terms
- Holonomic self-propelled robot
- A small self-propelled robot that can move its three XYθ degrees of freedom independently. It can translate, rotate, and revolve
- Liquid bridge force
- An adhesion force generated by water surface tension and Laplace pressure. At the micro scale it is more dominant than adhesive bonding forces, which makes it well suited to manipulating tiny parts
- Manipulation in liquid
- An operation that rotates and positions tiny objects and cells without contact, using the liquid flow generated by minutely vibrating a pipette
NewsLab news
A paper on precise path following of piezoelectric-driven robots was published in Advanced Intelligent Systems.
A paper on a wireless levitation transport device using a squeeze film was published in Advanced Intelligent Systems.
A paper on machine-learning classification and placement of tiny objects with a liquid-bridge-force gripper was published in Advanced Intelligent Discovery.
A ROUTE student received the Outstanding Research Award selected by the Doctoral Society.
A paper on a wireless self-propelled micromanipulator that works in isolated, confined spaces was published in Advanced Intelligent Systems.
ResearchResearch themes
Through the development of small robots and small actuators, this lab researches and develops new technologies that take advantage of their compactness, light weight, energy saving, and environmental friendliness. Current research includes mechanism development for holonomic self-propelled robots, automatic robot control by machine learning, liquid-bridge-force grippers, precise manipulation in liquid, SMA actuators, and piezoelectric actuators.
*Illustrative imageHolonomic self-propelled robots
The lab develops compact, lightweight, precise self-propelled mechanisms for handling electronic components and tiny objects. Using piezoelectric actuators, the robots walk on the inchworm principle and can translate, rotate, and revolve. The lab also works on automatic control by machine learning and on cooperative work by multiple robots.
*Illustrative imagePrecise path following
The lab studies control that lets holonomic self-propelled robots follow complex trajectories with high accuracy. Position is measured with an XYθ surface encoder, and 40 kHz feedback control on an FPGA has achieved a path error of 1 µm and an orientation error of 3 mdeg in the fine-motion range.
*Illustrative imageManipulating tiny objects with liquid bridge force
The lab develops devices that grip and move tiny parts using the adhesion force generated by water surface tension and Laplace pressure. With a mechanism that continuously supplies liquid to the gripper tip by capillary action, the lab has succeeded in picking up parts such as cubes, triangular pyramids, and half-cylinders.
*Illustrative imageManipulation in liquid
Manipulating egg cells has conventionally required skill and time, and precise rotation has not been possible. The lab therefore aims to rotate and position tiny objects and cells without contact, by vibrating a pipette minutely to generate local flow in the nearby liquid and using that flow.
MembersFaculty
The members of the Micro Robo-Mechanics Lab are faculty, master's students, undergraduate students, international students, and research students.As of 2026
- Associate ProfessorOhmi Fuchiwaki
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Rotary piezoelectric motor ANR101v” Jaanus.kalde / CC BY-SA 3.0 (cropped)
- Holonomic self-propelled robots: “Side By Side P” Jyoung / CC BY-SA 3.0 (cropped)
- Precise path following: “A CNC machine is actively carving” Shixart1985 / CC BY 2.0 (cropped)
- Manipulating tiny objects with liquid bridge force: “Bridge ( )” Randi Hausken from Bærum, Norway / CC BY-SA 2.0 (cropped)
- Manipulation in liquid: “Toolholder of a micromanipulator” Fjvv73. Original uploader was Fjvv73 at English Wikipedia / CC BY-SA 3.0 (cropped)
- Related lab (Mechatronics and Fluid Power Lab): “Mechatronics lab at PCoE” Intelligentguy89 / CC BY-SA 3.0 (cropped)
- Related lab (Cyber-Robotics Lab): “Brain-Controlled Prosthetic Arm 2” FDA / Public domain (cropped)
- Related lab (Space Flight and Exploration Engineering Lab): “IKAROS solar sail” Andrzej Mirecki / CC BY-SA 3.0 (cropped)
- Related lab (Dynamic Materials Design Lab): “Water droplets in a lotus leaf1” Aathavan jaffna / CC BY-SA 3.0 (cropped)
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