For engineers and builders

Draw the idea. Agents build the part.

An open canvas where Claude Code and Codex turn your sketches and notes into live CAD, 3D and analysis.

Join the waitlist See it build a scooter
2.1Mpoints reconstructed from one turntable video
0.67 pxmedian reprojection on held-out frames
188CAD solids across 27 parts in one STEP
47interfaces in one contract, so parallel helpers' parts fit

How it works

Think on the canvas. Agents work there too.

Write a note or point at something. The agent answers in place with a working artifact you can orbit, edit and download.

Say it where you think

Notes, sketches, reference images, an arrow at the part you mean.

An agent picks it up

Claude Code or Codex, per canvas. Long builds go to helpers running in parallel.

A live artifact lands

Viewers with real files behind them: STEP, GLB, STL, SVG, MP4.

Showcase · one canvas, one scooter

From a spec note to a 27‑part STEP.

Working spec sheet for a sit-on electric scooter
01Spec

A spec from your notes

Each line marked as what you said or what the agent estimated.

Front view of the scooter on greenSide view of the scooter on greenTop view of the scooter on green
02Views

Front, side, top on green

True orthographic views from Codex, aligned into a 3D reference rig.

03Turntable

A full 360° turn

An 8 s green-screen turntable becomes the camera rig.

Point-cloud reconstruction of the scooter with coloured feature lines
04Reconstruction

Point cloud v1 → v2

2.1M dense points and 482 feature lines.

Vehicle frame with hard points
05Hard points

Hard points and a frame

Steering axis, axles, seat height, then a steel frame checked with FEA.

06Part masks

Every panel, cut from the clip

Per-part masks give each panel its own cloud, no new video.

Block-by-block CAD of the scooter body panels
07Body panels

Blocks → shelled CAD

Fitted block by block, then shelled to wall thickness.

Whole-scooter assembly with parts list and checks
08Assembly

27 parts, one STEP

188 solids written and read back face for face.

Reconstruction

One video in. A measured cloud out.

The turntable becomes a calibrated, coloured point cloud with the creases and panel gaps traced as 3D lines.

  • 2.1Mdense points (v1 had 300k)
  • 482feature lines, 47.8 m of edges
  • 0.67px median reprojection, held-out frames

CAD and DFM

Parts you can mould, not just render.

A mirror housing split into cosmetic, inner and functional surfaces, then checked for wall, draft and undercuts.

  • 99.4%of the area at good draft
  • 2.2 mmnominal wall, PC/ABS
build123dSTEP re-readA/B/C surfaces
Mirror housing DFM viewer with draft analysis and checklist

DFM built in

Wall thickness, draft, undercuts, ribs and bosses. Every warning listed.

Parametric mirror editor with a 2D sketch and 3D model side by side

Parametric editors

Drag a dimension in 2D and the solid rebuilds in 3D.

Battery pack and frame concept with FEA stress results

Engineering, not just shapes

Ergonomics, steering geometry, a battery pack and frame stress maps.

Rigs and motion too

A cartoon frog, vectorised, rigged and given happy, jump and idle cycles.

Processes and agents

Methods that worked become one @mention.

A playbook with steps, gates and approvals. Type @name on the canvas and the agent runs it.

@interface-first

Parts designed in parallel against one contract, then assembled and verified interface by interface.

@design-part

A part from its constraints: bounds, hard points, clearances, DFM.

@part-from-veo

Views to turntable to cloud to measured CAD. Paid steps wait for your yes.

dfm_checkcad_rebuildhardpointsbom_buildpart_turntable
47 interface contract Helper Afront shield Helper Binner leg shield Helper Cheadlamp Assembly checkevery interface verified splits · datums · keep-outs · fasteners tolerance and source on every entry
Front-set skeleton viewer: shared curves, interface surfaces and the interface contract list

Notebook · boards · inbox

Big canvases, easy to follow.

Every thread as a readable page. A board per project. An inbox when work lands.

Polymer Notebook view: every thread on the board grouped by project, with your note and the live artifact it produced

  • Notebook view

    Request, reply and artifacts per thread, grouped by project. Export to HTML or Markdown.

  • An agent per board

    Bind Claude Code or Codex to each canvas and resume it later.

  • An inbox

    A badge and a toast when a helper finishes or a step needs your approval.

Agents Claude CodeCodex Open formats out: STEP · GLB · STL · SVG · MP4 · JSON

Early access

Join the Polymer waitlist.

We're opening Polymer to people who build physical things. Tell us who you are.

Mechanical engineersProduct designersHardware startupsMakersEngineering teams

All fields are required.

We'll only use this to contact you about Polymer access. No spam, no sharing.

You're on the list.

Thanks for signing up. We'll email you when there's a seat for you, with a short note on what to try first.