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Kiri:Moto is a real, free and open-source browser application for preparing FDM and SLA prints, CNC toolpaths, and laser jobs. Its browser-first design makes it useful on Chromebooks, shared workshop computers, classrooms, and makerspaces. The important limitation is that it does not make every machine plug-and-play: you must select or customize the correct profile, verify the output dialect and coordinates, and inspect every unfamiliar file before running it.
What is Kiri:Moto?
Kiri:Moto is a multi-purpose slicing and toolpath-generation application developed in the Grid.Space grid-apps project. Unlike a conventional 3D-printer slicer, it provides four documented workflows: FDM, SLA, CAM, and LASER.
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- FDM: prepares filament-printing models as machine instructions.
- SLA: prepares resin-printing jobs.
- CAM: generates subtractive CNC milling toolpaths.
- LASER: prepares laser operations from suitable geometry.
The related Mesh:Tool application handles mesh repair and editing before slicing. Developers can also use Kiri:Moto through JavaScript workers or iframe APIs.
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Yes. The hosted version opens in a modern web browser, while the project documentation describes the slicing and toolpath computation as taking place locally in the browser rather than on a conventional cloud-slicing backend. That can reduce the need to upload models to a third-party service.
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- Up to 16 Colors: Bring your designs to life with vibrant multi-color/multi-material printing capabilities, perfect for showcasing your creativity. Note: Connecting Bambu Lab AMS is required.
- 500mm/s and 20000 mm/s² Acceleration True High Speed: Don't wait around for your masterpieces. Lightning-fast printing speed lets you focus on creating, not waiting.
- Enclosed Design: Fully enclosed body improves print performance for advanced filaments. Automatic Bed Leveling: Say hello to high-quality, successful prints. Auto bed leveling makes 3D printing such an easy thing.
- Set Up in 15 Minutes: Spend more time printing and less time setting up. User-friendly design ensures a hassle-free assembly experience for all skill levels.
- Supported Filament: Ideal: PLA, PETG, TPU, PVA, PET ABS, ASA; Capable : PA, PC; Not Recommended: Carbon/Glass Fiber Reinforced Polymer.
Browser-based does not mean hardware-independent. Large or complex models still require sufficient CPU, memory, graphics support, and WebGL. An older official project wiki recommends planning for at least 8 GB of RAM; treat that as a planning recommendation, not a universal current minimum for every job.
Users who want more control can self-host the application, deploy it with Docker, or use an Electron desktop build. The repository documents these local-development commands:
git clone [email protected]:GridSpace/grid-apps.git
cd grid-apps
npm run setup
npm run docs-devThe documented Docker deployment is:
git clone [email protected]:GridSpace/grid-apps.git
cd grid-apps
docker-compose -f src/dock/compose.yml upThe repository identifies http://localhost:8080/kiri as the default local path. These are self-hosting or development instructions; an ordinary user does not need to install Node.js to try the hosted browser experience.
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Cost, accounts, and privacy
The official repository describes Kiri:Moto and Mesh:Tool as free and open source under the MIT license. The available official material does not establish a paid subscription requirement. If an account or login requirement is important to your workflow, check the current hosted-app behavior directly.
Local processing, self-hosting, and desktop builds are attractive for privacy-sensitive designs. However, “local processing” is not the same as a complete offline or privacy audit. A hosted URL still needs a network connection to load the application, and browser caches, external assets, extensions, telemetry, or integrations may matter in a strict offline environment.
The basic workflow
Kiri:Moto’s interface is organized around:
Arrange → Slice → Preview → Export
- Open Kiri:Moto and select FDM, SLA, CAM, or LASER.
- Import a model, vector, or image asset.
- Arrange, rotate, scale, mirror, or flatten the object as appropriate.
- Select a machine or device profile.
- Configure material, process, tooling, and output settings.
- Generate the slice or toolpath.
- Inspect the preview, including movement and operation order.
- Export the file.
- Verify it in the target machine’s control software before starting the job.
Supported files
According to the official FAQ, documented model inputs include:
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- Up to 16 Colors: Bring your designs to life with vibrant multi-color/multi-material printing capabilities, perfect for showcasing your creativity. Note: Connecting Bambu Lab AMS is required.
- 500mm/s and 20000 mm/s² Acceleration True High Speed: Don't wait around for your masterpieces. Lightning-fast printing speed lets you focus on creating, not waiting.
- Enclosed Design: Fully enclosed body improves print performance for advanced filaments. Automatic Bed Leveling: Say hello to high-quality, successful prints. Auto bed leveling makes 3D printing such an easy thing.
- Set Up in 15 Minutes: Spend more time printing and less time setting up. User-friendly design ensures a hassle-free assembly experience for all skill levels.
- Supported Filament: Ideal: PLA, PETG, TPU, PVA, PET ABS, ASA; Capable : PA, PC; Not Recommended: Carbon/Glass Fiber Reinforced Polymer.
STLOBJ3MFSVG, which can be converted into a 3D modelPNG, for documented 2D image-to-3D conversion
Do not confuse these with Kiri:Moto project files. A .kmz file contains a complete zipped workspace, while .km stores Kiri:Moto CAM tool-parameter data. Machine output is separate and depends on the selected device and post-processing settings. CAM and laser documentation refers to configurable extensions such as .nc, .ngc, .cnc, .cam, .gcode, and .txt.
Using Kiri:Moto with a 3D printer
- Select FDM.
- Import the model and arrange it on the virtual bed.
- Choose a printer profile or create a similar device profile and customize it.
- Confirm bed dimensions, nozzle diameter, filament settings, temperatures, speeds, retraction, and firmware behavior.
- Slice the model.
- Check the first layers, supports, travel moves, estimated time, and material use.
- Export the G-code and test it with a small print before committing to a long job.
Kiri:Moto can import a PrusaSlicer .ini file and convert it into Device and Profile settings. This may reduce setup time, but the official FAQ warns that macro logic is not automatically converted. Start and end G-code, tool-change behavior, and other carefully tuned machine routines may therefore need manual review.
Using CAM mode for CNC milling
CAM mode is intended primarily for subtractive manufacturing. The CAM documentation describes importing one or more models, translating and rotating them, snapping them flat to the bed, scaling or mirroring them, configuring the machine and tool library, selecting operations, previewing toolpaths, estimating time, and exporting G-code.
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Single-operation work can be exported as one file. Jobs involving multiple tools or operations can be exported as a ZIP archive containing separate operation files.
Kiri:Moto CAM is not a complete parametric CAD system. Bring a suitable model or vector design, then verify:
- Stock dimensions and position
- Work zero and origin
- Tool diameter, type, and physical length
- Cutting depth, step-down, and step-over
- Feed, plunge, and spindle speeds
- Safe-Z clearance around clamps and stock
- Roughing and finishing order
- Tool-change procedure and controller compatibility
A plausible simulation is not proof that a CNC job is safe. Dry-run or air-cut an unfamiliar toolpath where practical, and never assume a generic profile matches your machine’s kinematics or controller dialect.
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- 600mm/s Speed & CoreXY Structure — Powered by an all-metal CoreXY frame and 20,000mm/s² acceleration, Adventurer 5M Pro reaches speeds up to 600mm/s. Integrated vibration compensation algorithms eliminate ghosting and ringing for smooth, high-precision surface finishes.
- 3-Second Quick-Swap Nozzle & Auto Leveling — Features a tool-free, quick-release nozzle mechanism for effortless 3-second replacements across multiple sizes (0.25/0.4/0.6/0.8mm). One-click full auto-leveling ensures precise bed calibration and a perfect first layer every time.
- Dual Filtration System & Quiet Enclosure — Built with an integrated dual filtration system and a fully enclosed chamber to ensure a clean printing environment and thermal stability. Powered by low-noise motion control, it operates quietly under 50dB for seamless home, office, or classroom use.
- 280°C High-Temp Extruder & Broad Material Compatibility — With a 280°C max nozzle temperature and a 110°C heated bed, it reliably prints engineering materials like ABS, ASA, and PETG-CF, as well as standard PLA and PETG.
- Smart Camera & Mobile Control — Features a built-in camera for real-time monitoring and time-lapse video creation. Monitor progress, adjust settings, and receive instant status alerts via Flash Studio. Integrated with filament detection, power loss recovery, and a 4.3-inch touchscreen for effortless operation.
Using the laser workflow
- Select LASER.
- Import SVG or another supported design asset.
- Confirm scale, orientation, and origin.
- Enable laser operations in the machine profile.
- Set speed and power behavior for the material.
- Confirm the controller’s expected commands.
- Preview and export the job.
- Run it only with the machine’s required enclosure, extraction, fire monitoring, and other safety controls.
The machine documentation explains that laser operation commonly uses M3/M5 commands and changes movement behavior. It also documents support for the RML dialect, where non-cut moves use PU and cut moves use Z. Controller behavior varies, so do not assume that a generic laser profile is safe or compatible.
An older official wiki lists G-code, DXG, and SVG laser-path output in addition to G-code for printers and CNC mills. Because that page was last edited in 2020, check the selected machine profile and current export controls rather than assuming every format is exposed identically today. Laser power and speed are material-specific, and software settings do not make an unsafe material or machine safe.
Machine compatibility and profiles
Kiri:Moto’s broad hardware coverage is profile-based, not universal plug-and-play support. If your machine is not listed, the official FAQ recommends finding a similar device and customizing it in the device dialog. For some 3D printers, importing a PrusaSlicer .ini file is another starting point.
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For CNC machines, users can export a workspace as .kmz and share it with the project community for possible machine-profile support. In every case, the profile must be checked against the real machine, controller, tooling, coordinate system, and firmware.
What Kiri:Moto does well—and where it falls short
| Area | Kiri:Moto | Practical implication |
|---|---|---|
| Setup | Browser-first, with self-hosted and desktop options | Convenient on shared or low-administration computers |
| Cost | Free and open source | No commercial subscription was identified in the official material |
| Scope | FDM, SLA, CNC, and laser | One tool can cover several maker workflows |
| Machine support | Configurable profiles | Flexibility requires machine-specific validation |
| Privacy | Local browser computation and self-hosting | Can reduce cloud uploads, but is not automatically a complete offline solution |
| Advanced manufacturing | Makerspace-oriented CAM and slicing | Not a guaranteed replacement for professional CAM, vendor ecosystems, or industrial simulation |
It is a strong fit for makers who want one open-source application, schools and makerspaces managing shared machines, and developers interested in browser-based integration. It is a weaker fit for users who need extensive automated calibration, highly polished vendor-specific printer support, advanced multi-tool management, industrial collision verification, deep resin ecosystems, or a no-configuration experience.
Alternatives
- PrusaSlicer: a mature, printer-centered desktop slicer with extensive profiles and project workflows. Its documentation identifies STL, 3MF, STEP, and OBJ support.
- OrcaSlicer: a strong choice for advanced FDM calibration and printer-specific features.
- Autodesk Fusion: better suited to integrated CAD/CAM and advanced manufacturing, with greater complexity and changing commercial licensing.
- Carbide Create and Carbide Motion: natural choices for users seeking a Carbide 3D-oriented CNC design, toolpath, and control ecosystem.
- LightBurn: a more natural fit for laser-first design, layout, engraving, and machine control.
Verify before running any exported file
- Is the correct machine profile selected?
- Do bed, stock, and work-area dimensions match reality?
- Are the origin, axis directions, and units correct?
- Do nozzle, tool, laser, material, and firmware settings match the hardware?
- Does the controller understand the generated commands and file extension?
- For CNC, are safe-Z, clamps, tool length, plunge depth, and tool changes correct?
- For lasers, are focus, power, speed, extraction, enclosure, and material suitability confirmed?
- Have you previewed the job and tested an unfamiliar profile on a small print, dry run, or air cut?
Desktop Electron builds are available through the project’s releases. The repository notes that Linux x86 AppImage users may need FUSE and that Windows and macOS binaries are unsigned, so operating-system security warnings may appear. Recheck current release assets and requirements before deploying them in a workshop.
Quick Recap
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