Spawn an object
into existence.
Kiln 3D is how AI agents make real things — safely. Print them on any 3D printer, or have them made and shipped to you.
Describe what you want. Kiln designs it and keeps every version, so you can try the risky idea and keep the one that worked. No printer? No problem.
Bring your AI. We brought the rest.
Works with your AI
Compatible with your printer
- Have a printer? Kiln runs it: design, slice, print, watch, recover.
- No printer? Design in the chat, see it in 3D, order it made and delivered, or print it later.
- Either way, every version is kept, and the AI you already pay for does the work.
Tuned profiles for Creality, Bambu Lab, Elegoo, Prusa, Sovol, Voron, AnkerMake, Artillery, FlashForge, QIDI, RatRig & SparkX. See if yours is supported →
One thing today. Or a hundred this week.
Same printer. Same desk. One prompt each.
One thing, today
a coaster with a photo of my dog Ash
Bambu Lab A1 Mini
Or a hundred, this week
an ashtray with our startup’s logo
Bambu Lab A1 Mini
The full run
Version control for 3D printing Free on 3 designs
Every version of a part, kept the way programmers keep code in Git. See exactly what changed, drawn on the part and measured. Try a new idea on a branch without losing the one that works. Merge what prints best. Sign a release and prove later that nothing changed.
What Kiln keeps versions of:
- Your designs — the mesh itself
- Your decorations — logos, textures, photo-emboss, brand assets
- Your features — reusable parts: a hat for an action figure, a mounting bracket, chamfers, fillets, pockets, holes
Free keeps 3 saved designs with their full history: branch, merge, cherry-pick and undo on each. Pro does it on every design and adds the diff drawn on the part, pinned comments, pull requests, signed releases, and versioned decorations and features; Business adds approval gates and team review; Enterprise adds audit log export, SSO, and step-up authentication on production releases.
From idea to a printed product in an afternoon. Manual included. Business
Multi-part prints ship with a printable PDF assembly manual — Bill of Materials, isometric step renders, pause-and-check verification gates.
A real PDF generated by Kiln from a simple 3-part desk hook kit — cover, mid-build, and final step from the same manual.
What Kiln does
The five capabilities that make Kiln, Kiln.
Text & Sketch to 3D
Describe what you want or sketch it. Kiln writes parametric OpenSCAD from a component catalog (gears, threads, hinges, bearings) for precise parts, or sculpts free-form organic shapes for everything else — both free, no key required. Plug in your own key for Meshy, Tripo3D, or Stability AI.
Version Control
See exactly what changed between two versions, drawn on the part and measured. Branch new ideas without losing the working version, merge what prints best, and sign a release you can prove later. Branch and merge free on 3 saved designs; Kiln Pro on every design, with the drawn diff and signed releases. Every file Kiln makes carries a publicly checkable stamp on every tier.
See how it works →Print → Monitor → Recover
Full lifecycle: slice with the slicer you already have (PrusaSlicer, OrcaSlicer, or BambuStudio — auto-detected), validate safety, upload, print, control speed with natural language, monitor with camera vision from chat or the live web view, detect failures, and retry.
Safety at Every Step
A named safety profile for every one of the 70 printers Kiln supports, with temperature and speed limits, on every install that signs in (free). G-code validation before every send. Preflight checks, emergency stop, heater watchdog, G-code interception. Agents can’t bypass safety, at any tier.
CAD Files In and Out, Free
Already have a STEP file? Drop it in — Kiln converts, repairs, and preps it, labelled as CAD with the exact dimensions the file defines. And any design can leave as a real STEP, one clean solid a machine shop opens and measures, not a renamed mesh. Free on every tier, both directions.
More capabilities
See more of what Kiln does — CAD files in and out, printability engine, multi-part assembly, autonomous failure recovery, mid-print modification, fleet & fulfillment, and more.
How it works
From idea to physical object — then branch, merge, and print a better one.
- Idea
- Design
- Generate
- Validate
- Decorate
- Slice
- Monitor
- Iterate
Every step is an MCP tool. Agents compose the pipeline. Humans can run any step from the CLI. Every print outcome feeds the next iteration.
Before and after Kiln
One tool instead of a dozen. One conversation instead of a dozen tabs.
| Capability | Without Kiln | With Kiln |
|---|---|---|
| Create a 3D object | Learn Fusion 360, Tinkercad, or OnShape — or browse model sites manually | Describe it, sketch it, or drop in a CAD file — Kiln generates, validates, and prepares it |
| Control your printer | Creality Print, Prusa Connect — a different tool for every brand | One interface for every supported backend — same commands, any printer, each addressed by name |
| Safety beyond firmware | Firmware basics (thermal runaway, current limits) | Per-printer profiles + G-code validation + preflight checks + real-time interception |
| Validate before printing | Slicer warnings + experience + wasted filament | 7-dimension scoring (0–100), auto-repair, mesh fix, auto-scale for AI models |
| Version control | Rename files v1, v2, v2-final, v2-final-FINAL — lose track of which printed right | Branch, merge, cherry-pick, A/B across designs / decorations / features — three-way semantic merge at the mesh levelpro |
| Prove which version shipped | Email the STL and trust nobody edited it | Sign a version the way you’d sign a contract — anyone can verify later that nothing changed after you signed itpro |
| Hand the shop real CAD | Export a mesh and get told to come back with a STEP | Ask, and any design leaves as a clean STEP a machine shop can open — when a shape can’t honestly be CAD, Kiln says so |
| Check the sizes you asked for | Print it, measure it with calipers, reprint | Say “100mm long, four 8mm holes” — Kiln measures the design against every number and names any miss, and by how muchpro |
| Product templates | Design every coaster, keychain, and ornament from scratch | One command: "make me a coaster" — ready-made products, with logos and textures built in on Pro |
| Add decorations | Blender or Photoshop, then re-import and hope it prints | Photos, logos, text — emboss or deboss with one command; a free allowance every month, unlimited on Pro |
| Add surface textures | UV mapping skills + texture software — not practical for most users | Tiger stripe, marble, snakeskin, wood grain, carbon fiber, honeycomb, etc. — applied directly to any modelpro |
| Multicolor printing | Manually configure AMS slots and paint color regions in your slicer | Say “make the handle red” — Kiln finds the model’s surfaces, paints the ones you pick, maps AMS slots, and merges the G-code |
| Ship an assembly kit | Write a 30-page PDF in Word, photograph each step, hire a translator | Assembly manuals, auto-generated — a printable PDF with BOM, isometric step renders, multilingual sections, and "what changed" diffs for revisionsbusiness |
| Slice a file | Open the slicer, tweak settings, export, upload — for every single print | Kiln finds PrusaSlicer, OrcaSlicer, or BambuStudio — whichever you have — and drives it, with your settings carried over untouched |
| Monitor for failures | Your printer’s camera or an add-on webcam — no AI analysis, no remote stop | Your agent reads the camera and calls out failures — plus a live web view with camera, temperatures, progress, pause and stop |
| Resume a cancelled print | Start over — the partial object is wasted | Resume from the exact layer it stopped, no filament wastedpro |
| Mid-print modifications | Cancel, redesign in CAD, re-slice, reprint from scratch | Decorate, add features, or swap material on a live print — with atomic revertpro |
| Print something too big | Find out when the part hits the gantry — or the nozzle crashes | Stopped before it starts, rotated to fit when possible — Pro designs the cleanest split and remembers the kit, so you can reprint just the piece that breaks |
| Trust your printer’s calibration | Generic slicer defaults; your tuned values stay tribal knowledge, and every print’s calibration starts from zero | Reads your slicer profiles AND keeps learning from every print — per-printer offsets refine over time with full provenancepro |
| Learn from past prints | Start fresh every time — your experience stays in your head | Kiln learns what worked — same material + printer = better settings next timepro |
| Catch a worn nozzle | Quality fades print after print — you blame the filament | Wear tracked across every print, with a warning before a job pushes the nozzle past its limitpro |
| Keep filament dry | Guess, or babysit a dryer box | Run the AMS dryer from chat (Bambu), check humidity, and get a heads-up before moisture-prone filament prints |
| Design for your machine | Generic models sized for someone else’s printer | Designs factor in your build volume, materials, and temperature limits automatically |
| Sync designs across devices | Dropbox and hope nothing drifts | Push and pull between your machines through Kiln’s cloud — private to your accountpro |
| Manage a fleet | One dashboard per brand, no cross-brand routing or learning | Unified fleet with smart job routing, failure rerouting, cross-printer learning — and one command to pause, resume, or stop every machinebusiness |
| Outsource to pros | Visit Craftcloud or other services, compare quotes yourself | Route to 150+ 3rd-party services via Craftcloud directly from your workflow |
| Know what a part can survive | Forum guesswork about gasoline, dishwashers, and summer heat | Honest exposure answers — warnings always free; everyday go-aheads on Business, safety-critical on Enterprisebusiness |
| Glue two printed parts | A drawer of half-used glues and hope | The right adhesive for your two materials — surface prep and cure schedule, cited to datasheetspro |
| Let AI run the whole thing | Not possible | Full pipeline via MCP — any AI agent, any printer, start to finish |
What people are saying.
“Of the 3D printing MCP servers we looked at, Kiln covers the most printers and the fullest workflow, and its safety design is serious”From the community
“Bruh... this Claude Code MCP server is gonna make some new millionaires.”
“It lets AI coding agents help you 3D-print real objects just by describing what you want.”
Explore Kiln by topic
Everything you need for setup, integrations, operations, and production workflows.
Install and setup
Quick install, first printer connection, and MCP server setup.
Printer and ecosystem integrations
Compatible with Bambu Lab, Creality, Prusa Link, Elegoo, Moonraker, and OctoPrint, plus model marketplaces and fulfillment.
Is your printer supported?
Tuned profiles for dozens of models across a dozen brands — Bambu Lab, Creality, Prusa, Elegoo, Sovol, Voron, and more. Find yours.
Use cases
Print farm automation, AI prototyping, outsourced production, and lab operations.
Documentation
New here? Start with the basics, then the full reference.
Releases and updates
Feature launches, integration announcements, and real-world print stories.
FAQ
Answers on pricing, compatibility, deployment, safety, and operations.
Let's build.
Open source, AGPL-3.0 licensed, free for local printing forever.