Is there a built-in ʼAuto-Saveʼ folder for recovered files in Rhino?

ByCADbrief Staff

Short Answer

Yes. Rhino 3D keeps auto-saved and recovery files in a built-in location managed through Options, usually under File settings where AutoSave is enabled and its folder path is shown. The most common professional method is to check the AutoSave path in Rhino Options, then open that folder in Windows. Recovery is not guaranteed if AutoSave was disabled.

What You Need to Know Before

Warning: Rhino’s recovery files are only useful if the model was saved at least once and AutoSave was enabled before the crash. A common failure is searching the wrong folder when the AutoSave path was changed manually or redirected to a network location.

How-to

  • Command: Options

  • Shortcut: None

  • Quick Steps:

    1. Run Options or go to Tools > Options, then open Files.
    2. Find the AutoSave settings and confirm that Enable Autosave is checked.
    3. Review the displayed autosave file location path, then open that folder in Windows Explorer to find the recovered .3dm file.

Variables & Settings

  • Key Setting: Enable Autosave and AutoSave file location

  • Expert Setting: The AutoSave interval and folder path control whether Rhino creates recoverable backup files and where they are stored. If the folder points to a slow, missing, or synced location, recovery files may be delayed, inaccessible, or missing after a crash.

Why it Fails

  • Cause 1 (Geometry): Large or complex models can take longer to auto-save, so Rhino may crash before the next scheduled save completes.

  • Cause 2 (layers/Locks): If the file is stored in a protected folder or redirected to a restricted network/user profile location, Rhino may not be able to write the recovery file.

  • Cause 3 (Command/Logic): Users often expect unsaved new models to have full recovery data, but if the file was never saved or AutoSave was off, Rhino may not generate a usable recovery file.

Quick Fix & Best Practice

  • Quick Fix: Run Options, go to Files, turn on Enable Autosave, and set the AutoSave folder to a reliable local path.

  • Manager’s Verdict: Use Rhino’s built-in AutoSave for everyday protection, but do not rely on it as your only backup method. In production workflows, save manually at milestones and avoid network-only AutoSave locations.

FAQ

Where is Rhino’s AutoSave folder by default?
It depends on your Rhino version and Windows user profile, so the safest method is to check it in Options > Files.

Can Rhino recover an unsaved file after a crash?
Sometimes, but only if AutoSave had enough time to create a recovery file.

Is the AutoSave folder the same as Rhino backup files?
No. autosave recovery files and Rhino backup files are related but not always stored or used the same way.

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