Kiln 1.3.0

Added

• Kiln cleans up after itself. Every agent session starts its own
  background Kiln, and closed sessions leave theirs behind — quietly holding
  memory. Kiln now notices the pile-up, tells you in plain English, and
  closes the leftovers when you ask, checking that nothing is printing first
  and never touching the session you're in. In a terminal: kiln trim.

• Too big for your printer? Kiln cuts it into a kit. When a model won't
  fit, Kiln can split it into pieces that fit your printer and go back
  together — cutting where it makes sense and sealing every cut so each
  piece actually prints. Splitting is free; Pro works out how the pieces
  should attach and builds that into them.

• Recommend from the spools you actually own. Ask what to print in and
  Kiln can answer from your real shelf and loaded filament instead of the
  whole catalog. It names the printer that has it, or tells you it needs a
  swap. Nothing suitable? You get an honest "you'd need to buy this" — and
  if something you don't own fits much better, Kiln says so.

• Drop in CAD files and print them — free for everyone. Kiln now reads
  STEP, the format every CAD program and machine shop speaks. Hand any Kiln
  tool a .step and it becomes a printable model automatically — and a
  coloured multi-part assembly keeps its colours and part names, ready for
  multi-material printing. One command sets up the converter:
  kiln install-step-backend.

• Kiln's hosted connection speaks the newest protocol. Connect Kiln to
  Claude or any other AI client and it now uses the 2026-07-28 Model Context
  Protocol specification. Long-running work — texture carving, print
  repair, assembly booklets, technical drawings — hands back a ticket you
  can check on, so a slow job never blocks the conversation. Nothing
  changes for older clients.

• Print records now work on every printer Kiln supports (free). Outcome
  recording used to run only on the Bambu connection; Moonraker, OctoPrint,
  Klipper and serial printers now record too. The record opens when a print
  starts, so closing your session doesn't lose it, and if Kiln wasn't
  connected at the end it asks how the print went instead of assuming —
  anything unconfirmed stays out of success rates and recommended settings
  until you answer.

• Hand Kiln a customer drawing, get a straight answer (Business+).
  Drop in an engineering drawing (PDF or a photo) and Kiln reads every
  dimension and tolerance on the sheet, then tells you — dimension by
  dimension — whether your printers can hold them, how many good parts
  to expect per batch, and what would improve the odds: a different
  print orientation, a small tolerance ask back to your customer, or
  Kiln's per-machine compensation. The answers come from how your
  machines have actually printed, not generic 3D-printing rules of
  thumb, and they sharpen every time you report a real measurement.
  Anything Kiln can't honestly assess is listed for your review —
  never silently passed. Fleet ranking ("which of my machines is the
  right one for this job") is Enterprise. Enterprise shops can also set
  their own quality bar: out of every 100 parts you print, how many
  have to come out on-size before you'd call the job a safe "yes"?
  Kiln's default is strict (97 of 100); tell it your number once and
  it's saved to your account — every future drawing is graded against
  your bar, on any machine you sign into, and each report says which
  bar it used.

• Kiln warns you about holes before you print them (Business+).
  Printed holes always come out a bit smaller than the drawing asks
  for. When the drawing doesn't say how much slop is allowed, Kiln now
  tells you how far off it'll be for your material — so you can plan
  to drill them out, instead of finding out after the part is done.

• Attach the CAD, get a price and a time (Business+). The report
  adds a ballpark material cost and print time for a single part. Ask
  for a batch and it totals the whole run — padded for the parts Kiln
  predicts will measure outside the drawing's limits, so you're not
  quoting a perfect-world number.

• First Article Inspection drafting (Enterprise). As you design and
  print parts and log inspections in Kiln, it builds the record for you
  — so when an AS9102 FAIR report is due, Kiln drafts it from your own
  work. Your reviewer verifies and signs; Kiln never fills the sign-off.

• Add Kiln to Claude Code in one command — free. Kiln now ships as a
  Claude Code plugin. Run claude plugin marketplace add codeofaxel/Kiln,
  then claude plugin install kiln@kiln, and every Kiln tool — design,
  slice, print, monitor, recover — is wired into your Claude Code session
  with no manual setup. Requires uv; Kiln updates
  itself automatically from there.

• Turn a model that came in pieces into a kit you can build. Drop in a
  multi-part model and the parts keep their names and places. Kiln finds the
  biggest size everything prints at, proves the pieces really fit, and tells
  you what any overlap means.

• Kiln packs your print plates (Pro). How many plates a kit takes, and
  what goes on each one. With more than one printer, Kiln splits the work
  between them and tells you when the last plate finishes (Business+). See
  https://kiln3d.com/pricing.

• Better assembly booklets that generate quicker (Business+).

• Manuals are kept, versioned, and synced (Business+). Every booklet lands
  in your library with revision history, cloud sync, and proof of
  authenticity.

• Know if a shelf will lean before you print it (Pro+). Kiln says which
  openings need a diagonal and how few will do. Back panels count, and you
  get each brace's length to print, cut, or buy.

• How to glue the high-temperature plastics (Pro+). Adhesive intelligence
  now covers PPS and Ultem (PEI 1010 and 9085) — surface prep and which
  adhesive actually holds.

• Bambu X1E and H2S reach their full nozzle temperature. Kiln now
  respects each printer's real limit, so high-temp filaments print
  without a false "too hot" error.

• Duet printers now work with Kiln (beta). If your machine runs on a
  Duet board, just tell your AI — Kiln connects it and drives it like any
  other printer: print, pause, cancel, upload, set temperatures. Works
  with both current and older RepRapFirmware — including the Vision Miner
  22 IDEX v4.

• Your texture work goes further. Kiln's texture engine now wraps your
  own image around the whole object rather than one face, lets you shape the
  finish (invert it, deepen it, soften it, fade it into the surface), and can
  raise detail that was only painted on a model into real printable relief.
  Purely additive, so walls never thin and your original file is untouched.
  Free (3 detail recoveries a month; unlimited on Kiln Pro). The same finish
  controls are now in the web studio at kiln3d.com, behind an "Advanced
  finish" panel.

• High-temperature engineering plastics, now first-class. Kiln
  recognizes six advanced polymers — PEEK, PEI (1010 and 9085), PEKK, PPSU,
  and PPS — the materials used for parts that face real heat, load, and
  harsh chemicals. It knows their safe handling and tells you when a printer
  simply can't reach the temperatures they need.

• Nine more printers. Added the AON3D AON-M2+ and Hylo, INTAMSYS
  FUNMAT PRO 610HT, Vision Miner 22 IDEX v4, QIDI Plus 4 / Q1 Pro / Q2 /
  X-Max 3, and the Creality Ender 3 S1 Pro — from the household
  desktop up to the industrial heated-chamber class, each with advice that
  fits what your machine can actually do. Full list:
  https://kiln3d.com/printers

• Straight answers for demanding materials (Pro+). For the new
  high-temperature polymers, Kiln Pro adds engineering-grade properties and
  printer-specific guidance — ask what a part will hold or how to run it, and
  the answer is tuned to your exact printer and material instead of a generic
  spec.

• Chemical answers for the high-temperature plastics. Ask whether a
  printed PEEK, PEI or PPSU part (and other high-temp plastics) survives a
  solvent, fuel, cleaner, oil, sunlight or food contact — answered for a real
  printed part, and flagged honestly when no test exists. Everyday chemicals
  are Kiln Business; the ones that carry legal weight are Kiln Enterprise.
  Warnings are free for everyone. See https://kiln3d.com/pricing.

• ESD-safe filaments, matched to your job. ESD-safe (anti-static)
  filaments drain off static so a printed tray or fixture won't zap the boards
  it holds. Kiln Business picks and sources the right grade for your printer;
  Kiln Enterprise adds what a shop needs to prove its parts pass an ESD audit.
  The safety basics are free for everyone. See https://kiln3d.com/pricing.

• Conformal-coating help for circuit boards (Business+). Kiln helps
  you pick a coating for a populated board, flags how it could fail and
  what you still need to prove, and keeps the safety basics free on
  every tier. It never approves a coating or signs off a board — that
  stays with a qualified person.

• Always know which supplier spec you built on (Business+).
  Suppliers quietly revise the data sheets for their materials and
  chemicals. Give Kiln a data sheet and it locks that exact version to
  your design, keeps a copy you can pull back up anytime — and when you
  bring in a newer revision, it flags every decision that was built on
  the old one.

• Learns from your real results (Enterprise). Kiln remembers your
  inspection and field outcomes for a given setup and surfaces them next
  time — as context that never overrides a safety check.

• Tidy your workshop (Pro+). Archive a design to hide it from your list,
  and restore it anytime — nothing is ever lost. See
  https://kiln3d.com/pricing.

• Tell Kiln how your prints fit — free. Say how a hole came out and which
  way it printed: up, or on its side. Calipers or just plain words — either
  works. Enough reports and Kiln settles which way holes actually shrink — a
  thing makers argue about. Pro turns it into fit guidance tuned to your
  printer and material — and now keeps the two print directions apart, so
  those numbers sharpen faster.

• Print checks now tune to your filament and your printer (free).
  Warping, heat-stress and bed-grip warnings follow the material actually
  loaded and the machine that will run it — in slicing, cost estimates and
  the pre-print readiness check too.

Changed

• Nozzle wear is measured, not assumed (free). If Kiln has no usage
  history for a nozzle, it now says so instead of reporting it as good as
  new. Every print adds to the count — including prints that failed, which
  wear a nozzle just the same.

• Material intelligence now answers for every filament Kiln knows. Skin
  contact, durability, multi-material bonding and safe-load guidance used to
  go quiet on less common materials — including everyday ones like TPU 95A,
  wood-fill and matte PLA. They answer across the catalogue now.

• Iterating is free — a design is only spent when you keep it. Try as many
  looks as you like; your free monthly designs are spent only when you download,
  print, or save one. Kiln Pro makes them unlimited.

• More accurate strength, fit, and tolerance numbers across the Pro
  engineering tools (Pro+). Expect more realistic results in several
  edge cases, including better support for specialty filaments like
  carbon-fiber blends.

• When a material won't run, Kiln names what stops it — nozzle, bed or
  chamber.

• Sign in once, stay signed in. Your kiln signin session now
  renews itself automatically in the background, so account features
  keep working without a re-login. If a session ever truly needs
  refreshing, Kiln shows you the one command to run.

Fixed

• Honest answers about unreadable files. A file Kiln can't read
  (corrupted, or CAD that needs converting first) now gets told exactly
  that.

• Filament runout sensors now work on Klipper printers.

• The live safety check no longer misses commands with a line number in
  front (free). Some senders and firmwares prefix every G-code command
  with a line number. Kiln's real-time check was reading that prefix as
  the command, so a command that should have been flagged could pass. It
  now reads the actual command every time, and anything it can't make
  sense of is refused rather than waved through. Reported by Dmitriy
  Filatov (Malder) — thank you.

• Ordinary nozzle temperatures are no longer refused by mistake (free).

• Kiln now tells you when it's running on generic safety limits (free).
  If Kiln doesn't recognise your printer it can fall back to limits looser
  than your machine's real ones. That used to be silent; it now says so up
  front instead of looking like full protection.

• The free structural safety check is more accurate now (free).
  Kiln Pro adds calibration and long-term-load checks for real
  projects — https://kiln3d.com/pricing.

• A few adhesive picks' heat tolerances are now more accurate (Pro+).

• Enterprise printer-overage billing now works (Enterprise). Reporting
  fleet printers beyond your included allowance to Stripe completes
  correctly.