AddPlyby Addcomposites

Your data

Your CAD stays in your browser

AddPly keeps original CAD and saved projects in your browser. The hosted assistant connection requires your permission for one project and temporarily stores scoped commands and results. The plainest version: the STEP file you choose is read in your own browser, and the projects you save are written to your own browser’s storage.

What happens to a file you open

  • The STEP file is read in the page and measured by OpenCascade running in a Web Worker in your browser. It is not sent anywhere.
  • The application never reads a file you did not choose, and never writes to one. Exporting a project uses your browser’s own download, to a location you control.

What is stored, and where

  • Saved projects go into IndexedDB in this browser, for this site address only. They contain your design and the exact CAD geometry it was authored on.
  • A small pointer records which project you had open, so it can be offered back to you on your next visit.
  • Nothing is synced. Another browser, another computer, a private window, or a different site address will not have your projects. Browser storage belongs to an origin, so a project saved at one address is not visible at another — moving work across addresses is what the exported project file is for.
  • Clearing this site’s data deletes them. Export a project file to keep a copy that survives that.

Your Addcomposites account

Sign-in is required to open the workspace and authorize an assistant. AddPly stores your verified email, account identifier, name when supplied, and sign-in times on its server. A secure account cookie keeps you signed in for up to 30 days; signing out ends that session and the shared Addcomposites sign-in. AddPly reports one active day per person per UTC day to Addcomposites. Signing in does not upload, sync or move your saved CAD projects.

What is not collected

  • Browser authoring keeps projects on this device. Hosted assistant access uses the site’s signed-in identity.
  • No analytics and no advertising or tracking cookies.
  • No transfer of your original CAD file or complete project archive through the assistant relay.

When you connect an assistant

Connecting explicitly shares your design brief, file names, material and ply records, authored boundaries, revision stamps and requested geometric measurements with your selected chat client. Only the signed-in owner can list or operate that connected workspace. The chat client’s own data policy applies to the information it receives.

The hosted relay stores a browser project session with a two-hour idle lease, renewed while the project is open, and operation receipts for ten minutes after their execution deadline. Expired records are inaccessible and cleaned every minute. Pausing project access deletes that session and its retained commands and results; it does not disconnect the app from your chat. Your saved project remains in this browser; this connection does not provide cloud project backup.

A secure browser cookie identifies your open projects for seven days and renews while they are active. Assistant access uses OAuth with your explicit consent to projects opened under your Addcomposites account. Access tokens last 30 minutes; rotating refresh tokens renew a 90-day idle window, independently of browser sessions. Server records store token hashes. Disconnect the app in your chat to revoke this authorization. A paused-project preference is kept in this browser until you resume it. Connection metadata includes the assistant client name and its registered callback addresses. Server access logs record requests and IP addresses; original CAD is not uploaded through this connection.

Optional hosted draping and FEA

In Drape and FEA, you can separately allow the selected surface mesh and study inputs to be processed on AddPly’s server for this project. This sends sampled geometry, local ply stacks, material elastic data, supports and loading to the engineering worker. The original STEP and retained exact CAD remain in your browser. Your connected assistant receives study inputs, summaries and provenance; full field data returns to this workspace.

Geometry input is held in memory while queued or running. Temporary solver files are removed when the job ends. Hosted results and request hashes expire after 30 minutes; disconnect deletes them and cancels pending studies. Save the project to retain results in browser storage or export a backup. This processing permission resets when you open another project or start a new workspace session.

Operational data

Serving the application means a web server sees the ordinary requests any website sees — the pages and assets your browser fetches, and the network address it fetches them from. That is infrastructure, not product telemetry. Assistant requests additionally carry the scoped design data described above, without the original CAD file or complete project payloads . Optional hosted study requests additionally carry the sampled geometry and inputs described above.

The public AddPly deployment is operated by Addcomposites. Retention of infrastructure request logs has not yet been documented here. Contact Addcomposites for that information before relying on a particular retention period.

Optional beta feedback

The help page and workspace can create a feedback report in memory. Nothing in that form is saved automatically or submitted to a server. The complete report is previewed before you choose to download it. Automatic context contains only the release version, browser family, exercise, step and error code. It excludes project names, filenames, geometry and full error messages.

Free text contains what you type, so omit confidential details. There are no automatic attachments. You choose whether to share the downloaded report through Addcomposites’ contact route; downloading alone does not contact anyone. Closing or leaving the form discards its content.

Getting your data out

Export project… writes a portable .cad-laminate.json file containing the whole design and its exact geometry. It is readable, it is yours, and it is the format the application itself reads back. There is nothing to request from anyone.

Deleting your data

Delete a project from the library in the workbench, or clear this site’s data in your browser to remove all of them at once. Neither touches files you exported.

Contact

Addcomposites Oy, Sähkömiehentie 4E, 02150 Espoo, Finland — addcomposites.com