What Kiln can do.
Design, printability, lifecycle, fleet, safety, and the agent protocol that ties them together — every capability currently shipping.
What Kiln does
Every capability in the box — from parametric generation to signed releases.
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.
CAD Files In
Already have a STEP file? Drop it in — Kiln converts, repairs, and preps it for print, labelled as CAD with the exact dimensions the file itself defines. Ask the print questions straight of the STEP: which way up, will it warp, how much support. Free on every tier.
CAD Files Out
Ask, and any design leaves as a real STEP — exact CAD a machine shop opens as one clean solid and measures true radii on, not a renamed mesh. When a shape truly can’t be CAD, like a photo relief, Kiln says so instead of shipping a faceted imitation. Free, like STL and 3MF.
Turn It Over in 3D, Mid-Chat
Any design opens as a live, interactive 3D stage right inside the conversation — drag to rotate, zoom, tip it over and check the underside — instead of a flat render. Claude and other interactive-panel clients show it inline; everyone else gets a live link.
Design in the Browser, No Install
Sign in at kiln3d.com and go: pick a ready-to-make object, decorate it with textures, your own photos, or logos, all previewing live in 3D. Already have a file? Open it to just look — no account needed. No install, no printer, no API key.
Design Intelligence
38 materials with full engineering properties, 69 brand filament profiles, proven design templates (snap-fits, living hinges, threads), and structural load estimation. Kiln understands what makes a good print before generating anything.
Printability Engine
Analyze models across 7 dimensions (overhangs, thin walls, bridging, adhesion, supports, warping, thermal stress), score 0–100, auto-orient, repair broken meshes, and auto-scale AI-generated models. Problems get fixed, not just flagged.
Checked Against Your Numbers
Mention a dimension while you describe what you want — "100mm long, four 8mm holes, 10mm in from each corner" — and Kiln measures the finished design against every one, naming what missed and by how much. Works on files Kiln didn’t make too. Pro feature.
Doomed Prints Stopped Early
Too big for the build plate, or a material your hotend can’t melt? Kiln stops the print before it wastes filament or crashes the nozzle — rotating the part to fit when that solves it, and never blocking when it isn’t sure. Free for everyone; Pro adds the fix.
Too Big? Kiln Cuts It Into a Kit
Hand Kiln a model too big for your plate and it works out the fewest pieces that will fit — cutting at a natural seam (a neck, a waist) rather than through the middle, and sealing every cut face. Splitting is free; Pro designs how the pieces attach and what the joint holds.
Multi-Part Assembly
Design assemblies with up to 10 parts (unlimited with Pro). Clearance validation, joint type detection (snap-fit, press-fit, threaded), tolerance stacking, and automatic split planning for oversize models, with moving-part gaps sized to your printer.
What Can This Part Survive?
Ask about the exact liquid or exposure you have in mind — cleaners, oils, sunlight, fuel — and Kiln answers honestly, including that printed parts take chemicals harder than solid plastic. Warnings always free; everyday go-aheads Business, safety-critical Enterprise.
Surface Decoration
Emboss or deboss photos, logos, and text onto any model. Or paint by surface: ask for the handle in red, and Kiln finds the model’s natural surfaces and hands your slicer a multicolor 3MF with a filament slot per colour. 3 decorations/month free, unlimited with Pro.
Surface Textures
Tiger stripe, marble, snakeskin, lava, wood grain, and more — procedural and geometric patterns applied directly to any model, with no UV mapping, no texture software, and no cloud round-trip. It runs entirely on your own machine. Pro feature.
Material & Mesh Intelligence
Brand-name spools with purchase links and compatibility matching, plus mesh repair, boolean ops, hollowing, chamfers, fillets, and wall thickening — so you know which spool to buy, and can fix a broken STL without leaving the chat.
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. G-code validation before every send. Preflight checks, emergency stop, heater watchdog, G-code interception. Agents can’t bypass safety, at any tier.
Autonomous Failure Recovery
Detect failures via camera vision, diagnose root cause, auto-fix slicer settings, and resume from the exact layer — no filament wasted. Cross-printer learning compounds: every recovery on one machine improves recovery decisions on the rest. Pro feature.
Mid-print Modification
Decorate, add features, or swap material on a live print — without restarting. Atomic revert if anything goes wrong. The G-code rewriter re-slices from the current layer, splices the change, and resumes with tamper-evident provenance. Pro feature.
Smart Cost Estimation
Know what a print will cost before it starts — material, electricity, and time, per part or across a whole plate. Get recommendations for cheaper filament alternatives, faster speed profiles, and the quality tradeoff each one makes.
Fleet & Fulfillment
Multi-printer fleet with job routing, scheduling, and failure rerouting — and one command to pause, resume, or stop every machine. Kiln Business. No local printer? Outsource to Craftcloud’s 150+ third-party services on any tier — same tools, same safety.
Git for 3D Printing
Branch new ideas without losing the working version. Merge what prints best. Sign a release and prove later that nothing changed — every file Kiln makes carries a signed, publicly-checkable stamp at kiln3d.com/verify. Free offline; Pro+ syncs across machines.
Auto Assembly Manuals
Multi-part prints generate a printable PDF manual alongside the slice — Bill of Materials, isometric per-step renders, mating-direction arrows, and pause-and-check gates. Multilingual and co-branded, with "what changed" diffs for revisions. Kiln Business.
Will This Customer Drawing Pass?
Hand Kiln a customer’s engineering drawing — a PDF, or a photo of one — and get a dimension-by-dimension verdict: which tolerances your printers can hold, how many good parts to expect per batch, and what would improve the odds. Kiln Business.
The Drawing Knows How It Prints
Ask for a 5mm ring hole and the drawing labels it Ø5.7 — the size it actually prints, compensated for FDM and checked against the design’s own CAD. Every number is marked asked-for, as-printed, or measured, so a machinist knows which to trust. Kiln Business.
First Article Inspection, Drafted for You
As you design, print, and log inspections in Kiln, it quietly builds the record. When an AS9102 First Article Inspection report is due, Kiln drafts it from the work you already did instead of asking you to reconstruct it by hand. Kiln Enterprise.
938 MCP Capabilities, One Protocol
938 MCP capabilities and 252 CLI commands with --json output. Any MCP-compatible agent gets full access. Open source, AGPL-3.0 licensed, plugin-extensible.
Let's build.
Open source, AGPL-3.0 licensed, free for local printing forever.
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