# CAD Guides: STEP Measurement, Weight & File Formats — Page 8

Practical notes on CAD formats, model properties, units and engineering handoffs. — Page 8

- [Compare CAD Revisions: Geometry and Property Checks](https://www.cadprops.com/guides/compare-cad-revisions/index.md): Use fixed versions, explicit units and a deliberate alignment method before interpreting overlays or property differences.
- [Manage CADProps Share Links: Passwords, Expiry and Revocation](https://www.cadprops.com/guides/manage-cad-share-links/index.md): Find active CAD model links, understand recipient access, stop a link early and handle a replacement model without changing a fixed snapshot.
- [Share a Fixed CAD Revision: File and Version Checklist](https://www.cadprops.com/guides/share-fixed-cad-version/index.md): Pin a shared model or comparison to an explicit version, check recipient permissions and handle replacements without silent updates.

HTML page: https://www.cadprops.com/guides/page/8/