Google Japan Gboard Conveyor Belt Version Redefines Ergonomic Typing For DIY Enthusiasts

By Dave Kowalski — Dave Kowalski is a product writer, father of three, and self-described recovering deal addict. He translates specs into plain English — ‘what does this actually cost you over two years?’ and ‘would you recommend this to your brother-in-law?’ His reviews focus on total cost of ownership, durability, and whether something genuinely makes family life easier or just clutters the counter. Our Editorial & Safety Standards →

The Google Japan Gboard Conveyor Belt Version is a physical, motorized keyboard that uses rotating belts to bring individual keys directly to your stationary fingers, eliminating the need to stretch your hands or arms across a traditional desk layout. Sourcing the components to build this open-source project costs approximately $150 USD in raw materials, which you can purchase from various electronics retailers and online marketplaces using the schematics provided on GitHub. This highly unconventional hardware is designed specifically for DIY makers, hobbyists, and accessibility-focused users who want to experiment with a novel, single-handed typing workflow that minimizes physical hand movement.

This eccentric device represents the latest entry in a long-running design tradition from the regional engineering team at Google Japan. For years, the subsidiary has celebrated the first day of October—a date chosen as 10.1 in reference to the classic 101-key layout popularized by the IBM Model M—by releasing wild, borderline-absurd keyboard concepts. While previous iterations like the rotary-phone-inspired Gboard Dial Edition or the double-sided, strip-like layouts were treated purely as design exercises, this conveyor belt model is fully functional if you are willing to build it yourself. For a normal household looking to improve daily productivity, evaluating this device requires looking past the novelty and analyzing what it actually takes to construct, maintain, and use such a complex mechanical system on a daily basis. Initial product disclosures and reporting were tracked via Tomshardware.

The Problem and Hardware Purpose

Traditional computer keyboards force users to adapt their bodies to a static grid of keys, a design choice that has remained largely unchanged for decades. For individuals with limited mobility, repetitive strain injuries, or those who frequently type with only one hand, traversing a standard 104-key layout can cause significant physical fatigue. The Google Japan Gboard Conveyor Belt Version attempts to solve this ergonomic bottleneck by reversing the relationship between the hand and the keyboard. Instead of your fingers traveling to the keys, the keys travel to your fingers, keeping your hand completely stationary in a single, comfortable resting position.

Because Google Japan does not sell this keyboard as a pre-assembled retail product, the true cost of ownership is measured in raw materials, 3D printing filament, and assembly time. Sourcing the custom printed circuit boards, the microcontrollers, the mechanical switches, and the physical belt components will run you about $150 USD if you order the parts individually. The core workflow this device solves is single-handed data entry, allowing a user to rest their hand in one spot while the motorized belts cycle the entire alphabet, numbers, and punctuation marks directly under their fingertips. It is a highly specialized solution aimed at a very narrow demographic of hardware enthusiasts who value physical customization over out-of-the-box convenience.

Engineering Architecture & How It Works

According to technical documentation published with this release on GitHub, the physical architecture of the Gboard Conveyor Belt Version relies on four independent, motorized belts. What caught my eye reading the full spec sheet is that each of these four belts contains exactly 29 individual keys, bringing the total key count to 116. The mechanical movement is driven by small stepper motors housed within a custom 3D-printed chassis. These motors receive instructions from an onboard microcontroller, which coordinates the rotation of the belts based on user input and pre-programmed layouts. When a user wants to type a specific character, the corresponding belt rotates until that key reaches the designated striking zone directly beneath the user’s finger.

The entire project is open-source, meaning that anyone with a 3D printer and basic soldering skills can download the necessary files to build their own working model. The repository includes 3D-printable STL files for the structural frame and pulleys, KiCad schematics for the custom printed circuit boards, and the complete firmware source code. The engineering team even detailed their design process on the official company blog, explaining how they calibrated the belt tension and motor speed to ensure the keys align correctly when they stop. The system relies on standard mechanical keyboard switches mounted onto flexible, segmented belt links, which must maintain electrical contact with the main controller even while in motion—a significant engineering challenge that requires robust wiring and durable physical connectors.

Real-World Performance Reality

Translating the theoretical appeal of a conveyor-belt keyboard into a practical, day-to-day office tool reveals several immediate real-world hurdles. In a quiet home office or a shared corporate workspace, the noise generated by four constantly spinning stepper motors and plastic pulleys is bound to be a major distraction. Unlike a standard mechanical keyboard, which only makes sound when a keycap bottom out, this device produces a continuous mechanical hum and whirring noise whenever you are actively typing. For a normal household, this level of ambient noise is difficult to justify, especially during long typing sessions or video calls where background noise is a constant concern.

Typing speed and latency present another significant practical limitation. On a standard keyboard, a proficient typist can easily exceed 80 words per minute because all keys are instantly accessible. With the conveyor belt system, you must wait for the motor to physically rotate the desired key into position before you can press it. Even with high-speed motor configurations, this mechanical travel time introduces physical latency that limits typing speeds to a fraction of what is possible on a static layout. Furthermore, the long-term reliability of a DIY device with dozens of moving plastic parts, rubber belts, and sliding electrical contacts is incredibly low compared to a traditional solid-state keyboard, meaning you will spend a significant amount of time troubleshooting mechanical failures, replacing worn-out belts, and cleaning dust out of the gear assemblies.

Competitive Landscape: Named Rivals Compared

When looking for ergonomic typing solutions that actually reduce hand strain without the mechanical complexity of moving belts, there are several established, commercially available alternatives on the market. The first major competitor is the Kinesis Advantage360— $449 USD on Amazon. This professional-grade split keyboard features a contoured, concave keywell design that naturally conforms to the shape of your hands and fingers. Instead of moving the keys to your fingers using motors, the Kinesis Advantage360 places the keys in fixed, ergonomic wells that minimize the distance your fingers must stretch to reach any given character. It is a highly reliable, quiet, and proven tool for preventing repetitive strain injuries, backed by years of clinical research and professional use, though it carries a premium price tag.

Another compelling alternative is the Ergodox EZ— $350 USD on Amazon. This fully customizable, split mechanical keyboard allows users to position each half of the keyboard at the exact width and angle that matches their shoulders and wrists. The Ergodox EZ features a powerful graphical configurator that lets you map multiple layers of keys, allowing you to bring numbers, symbols, and navigation commands directly to your home row with simple modifier keys. This software-based approach solves the exact same problem as the Google Japan conveyor belt—minimizing finger travel—but does so using smart keymapping and static hardware rather than noisy, failure-prone physical motors. It offers a much higher build quality, hot-swappable key switches, and a comprehensive warranty that you simply do not get with a DIY project.

Final Buyer Recommendation: Practical Value Decision

For the vast majority of office workers, writers, and everyday computer users, the Google Japan Gboard Conveyor Belt Version is not a practical purchasing or building decision. The estimated $150 USD in raw materials, combined with the dozens of hours required for 3D printing, soldering, flashing firmware, and mechanical calibration, makes it an incredibly expensive and time-consuming endeavor for a device that ultimately slows down your typing speed and introduces significant mechanical noise to your workspace. If your primary goal is to reduce wrist pain, improve typing comfort, or find a reliable daily driver for your home office, you are far better off investing your money in a proven, static ergonomic keyboard like the Ergodox EZ or a more budget-friendly split model that works reliably out of the box without requiring ongoing mechanical maintenance.

However, if you are a dedicated hardware enthusiast, a maker who loves quirky engineering challenges, or someone who enjoys building unique conversation pieces for your desk, this project is an absolute goldmine of open-source design. The availability of the STL files, KiCad schematics, and firmware on GitHub means you have a complete roadmap to build a truly unique piece of functional art. For this specific hobbyist demographic, the value lies not in the words-per-minute typing efficiency, but in the joy of fabrication, the educational experience of programming motorized physical interfaces, and the sheer novelty of owning one of the most eccentric keyboard designs ever conceived. For everyone else, keep your hands on a standard, static keyboard and leave the conveyor belts in the factory.