GAZE–DRIVEN ASSISTIVE DEVICE

Anyone canbuild it.fix it.improve it.

A gaze-controlled assistive device. Build, fix and improve it yourself with a 3D printer.

Get the data Manufacturing guide
GOOD DESIGN AWARD 2025Winner

Developed by the National Rehabilitation Center for Persons with Disabilities × otuA Inc.

A user wearing the EyeTrigger Device
3D PRINTABLE
3D-printed parts
01

Anyone can build it

Make it yourself with a home 3D printer and off-the-shelf parts — no expertise needed.

Manufacturing guide
Assembling the parts
02

Anyone can fix it

Broken a part? Print just that part and swap it. Repair it yourself and keep using it.

How to use
Design data arranged in slicer software
03

Anyone can improve it

Open design data — adapt and improve it freely for each person's body and needs.

Get the data

GOOD DESIGN AWARD 2025

Good Design Award 2025 Winner

Winner of the 2025 Good Design Award, Japan (Health / Beauty).

Valued for turning an assistive device into open-source hardware anyone can build, repair and improve — lowering the barriers of cost and availability.

— Summary of the jury's evaluation, 2025 Good Design Award.　Full text →
  • Soft and easy to use, even for long periods
  • Reproducible without specialist knowledge, with a published BOM
  • Open-source for continuous improvement and global sharing

MANUFACTURING

Manufacturing guide

Print on a home 3D printer and assemble a few parts.

Assembly steps

  1. 1

    Remove the support material after printing

  2. 2

    Assemble the parts with a screwdriver

  3. 3

    Connect to a PC and check the operation

Specifications

Power
USB (from a laptop, etc.)
Material
Biodegradable plastic
Weight
68 g
Dimensions
H160 × W120 × D180 mm
Software
Saito & Zhang Lab, Kyushu Institute of Technology
Price
Open price

HOW TO USE

How to use

Fit, calibrate, operate — four basic steps.

  1. 01

    Put it on

    Fit the device to the user's face

  2. 02

    Calibrate

    Set up eye movement in the calibration software

  3. 03

    Operate

    Launch a supported app and control it by gaze

  4. 04

    Make

    For printing and assembly, see the manufacturing guide

GET STARTED

How to get it

Two ways: the 3D data to make it yourself, or a ready-assembled product.

A

Get the data FREE

Fill in the form to receive the 3D data

Go to the form

Manufacturing data request form